WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!

WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!
WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!
WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!

Answers

Answer 1
To find f(x+2), we need to substitute x+2 for x in the function f(x):

f(x+2) = 5(x+2)^2 - 2(x+2) + 3

Now we can simplify this expression by expanding the square and combining like terms:

f(x+2) = 5(x^2 + 4x + 4) - 2x - 4 + 3

f(x+2) = 5x^2 + 20x + 20 - 2x - 1

f(x+2) = 5x^2 + 18x + 19

Therefore, the simplified expression for f(x+2) is 5x^2 + 18x + 19.

I hope this is right!

Related Questions

Evaluate the following expressions for y= -3 how do I solve this?

Answers

To evaluate the expressions 2(y+6)/3 and (4y+64)/(-3) for y=-3, we substituted -3 for y and simplified. The first expression evaluates to 2, and the second evaluates to approximately -17.333.

To evaluate the expressions 2(y+6)/3 and (4y+64)/(-3) for y=-3, we can simply substitute -3 for y in each expression and simplify

2(y+6)/3 = 2(-3+6)/3

Now, simplifying by simple subtraction and then multiply,

= 2(3)/3 = 6/3 = 2

Therefore, when y=-3, the value of 2(y+6)/3 is 2.

Now, substituting the value of y =-3

(4y+64)/(-3) = (4(-3)+64)/(-3) = (-12+64)/(-3) = 52/(-3) = -17.333...

Therefore, when y=-3, the value of (4y+64)/(-3) is approximately -17.333.

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where is the blue dot on the number line?

Answers

Step-by-step explanation:

its -7.4

because each gap means 0.1

Which angle forms a corresponding angle with ∠2?

Answers

Answer:

6,3,7

Step-by-step explanation:

this is because they are all obtuse angles please help me i have a brain fart on meidan  of 45, 52, 57, 42, 54, 58.

Angles W and X are complementary. Determine the degree measure of

Answers

Answer:

36.6°

Step-by-step explanation:

If angles W and X are complementary, this means that they add up to 90°.

If angle X equals 53.4°, then we can subtract 90-53.4 to get the measure of angle W.

90-53.4

=36.6

Angle W=36.6°

Hope this helps! :)

ann (a) and brandon (b) are working together to answer a quiz with true and false answers. brandon answered 80%, but usually 40% of the answers fail, however, ann usually gets 85% of the answers right. what is the probability that an answer is ann's, given that it is correct?

Answers

The probability that an answer is Ann's given that it is correct is 0.43 or 43%.

Where P(A|C) is the probability that the answer is Ann's given that it is correct, P(C|A) is the probability that the answer is correct given that it is Ann's, P(A) is the probability that the answer is Ann's, and P(C) is the probability that the answer is correct.

We can use Bayes' theorem to calculate the probability that an answer is Ann's, given that it is correct:

P(A|C) = P(C|A) * P(A) / P(C)

We are given that Brandon answered 80% of the questions correctly, so the probability that the answer is correct is:

P(C) = 0.8(0.6) + 0.85(0.4) = 0.79

where 0.6 is the probability that Brandon answers a question correctly (since 40% fail), and 0.4 is the probability that Ann answers a question correctly.

We are also given that Ann usually gets 85% of the questions right, so the probability that the answer is Ann's is:

P(A) = 0.4

Finally, the probability that an answer is correct given that it is Ann's is simply:

P(C|A) = 0.85

These values are what we obtain when we apply Bayes' theorem to them:

P(A|C) = P(C|A) * P(A) / P(C)

P(A|C) = 0.85 * 0.4 / 0.79

P(A|C) = 0.43

The Bayes theorem is a mathematical formula that estimates the likelihood that an event will occur based on knowledge of comparable events that have already occurred. It is named after Reverend Thomas Bayes, an 18th-century statistician, who first formulated it.

The theorem is based on the concept of conditional probability, which is the probability of an event occurring given that another event has already occurred. Bayes' theorem provides a way to update the probability of an event based on new evidence or information. The formula for Bayes' theorem is: P(A|B) = P(B|A) * P(A) / P(B), where P(A|B) is the probability of event A given event B has occurred, P(B|A) is the probability of event B given that A has occurred, P(A) is the prior probability of A occurring, and P(B) is the prior probability of B occurring.

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How to do this teacher didn’t explain well

Answers

Refer to the attached images.

(Help!)
An object in the shape of a rectangular prism has a length of 8 inches, a width of 7 inches, and a height of 5 inches. The object's density is 20.7 grams per cubic centimeter. Find the mass of the object to the nearest gram.

Answers

The requried, rounding to the nearest gram, mass of the object is 95,297 g.

First, we need to find the volume of the rectangular prism:

Volume = length x width x height = 8 in x 7 in x 5 in = 280 cubic inches

Next, we need to convert the volume to cubic centimeters since the density is given in grams per cubic centimeter:

1 cubic inch = 16.3871 cubic centimeters

280 cubic inches = 280 x 16.3871 = 4594.628 cubic centimeters

Finally, we can calculate the mass of the object using the density formula:

Density = mass/volume

Density x volume

mass = 20.7 g/cm³ x 4594.628 cm³ ≈ 95,296.7 g

Rounding to the nearest gram, the mass of the object is 95,297 g.

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Cop
16
7. A company finds that if it charges x dollars for a cell phone, it can expect to sell
1,000-2x phones. The company uses the function r defined by
r(x) = x (1,000 - 2x) to model the expected revenue, in dollars, from selling cell
phones at x dollars each.
rain
26.361
a. Use graphing technology to graph the function r. Sketch the graph here and
show the coordinates of the vertex and any intercepts.
150,000
nit of
revenue (dollars)
*S
125,000
WERE
100,000
75,000
50,000
25,000
dhizib sri
b. What do the x-intercepts mean in this situation?
3
100 200 300 400 500
price per phone (dollars)
trative
IM Mathematics
600
16x3
c. Is 0 ≤ x ≤ 600 an appropriate domain for the function r? Explain your
reasoning.
d. At what price should the company sell their phones to get the maximum
revenue? Explain your reasoning.

Answers

The price at which the company should sell its phones to get the maximum revenue is $250

What is Maximum Revenue?

Attaining peak yields is the preeminent rate of profits that a commerce or congregation can accumulate from its action, products, or amenities within a determined span.

It is where the firm or collective is accruing the most money achievable, harnessing its present facilities, marketplace appeal, pricing methods, along with other specifics.

In order to attain maximum revenue, an enterprise must focus on refining its sales and networking campaigns, developing its wares or services, determining and honing in on precise shoppers, and optimizing its expenses as well as costs efficaciously.

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Daniel randomly surveyed 120 students at his school and found that 96 of them have at least one sibling. Based on these data, how many of the 425 students at his school would be expected to have at least one sibling?

Answers

The probability of a student having at least one sibling, based on the survey results is 0.8.

Daniel surveyed 120 students at his school and found that 96 of them have at least one sibling. This means that the probability of a student having at least one sibling, based on the survey results, is 96/120 or 0.8.

There are 425 students at Daniel's school, so if we multiply this number by the probability of having at least one sibling (0.8), we can estimate that approximately 340 students at the school have at least one sibling.

To estimate the number of students at Daniel's school who have at least one sibling, we can use this probability to make a prediction.

If we assume that the probability of a student having at least one sibling is the same for all students at the school, then we can apply this probability to the total number of students.

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what is the measure of angle X

Answers

Answer:

The answer for x is 28°

Step-by-step explanation:

x+62=90°

x=90-62

x=28°

Solve the following system of equations graphically on the set of axes below. y=−x+5 and y=2x−1

Answers

The solution of the lines y = - x + 5 and y = 2x - 1 will be (2, 3).

Given that:

y = - x + 5

y = 2x - 1

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

If the slopes are different then the system has one solution.

The lines are drawn on the graph. And the solution of the lines will be (2, 3).

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Refer to the regular square pyramid shown. 13. B = ? 14. L.A. = ? 15. T.A. = ? 16. V = ?​

Answers

The total surface area of the pyramid is  1,296 unit².

The lateral surface area (L.A) of the pyramid is 19.21 unit².

The volume of pyramid is 120 unit³.

What is the surface area of the pyramid?

The surface area of the pyramid is calculated as follows;

T.S.A = 2bh + b²

where;

b is the base of the triangular faceh is the height of each triangular face

In then diagram, we where given, base, b = 24 units, height = 15 units, then the surface area of the pyramid is calculated as follows;

T.S.A = 2 x 24 x 15  +  24²

T.S.A = 1,296 unit²

The lateral surface area is calculated as

L.A = √(b²/4 + h²)

L.A = √(24²/4 + 15²)

L.A = 19.21 unit²

The volume of pyramid is calculated as;

V = ¹/₃BH

V = ¹/₃ x 24 x 15

V = 120 unit³

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Gabriel is younger than Moussa. Their ages are consecutive even integers. Find
Gabriel's age if the product of their ages is 120.

Answers

Answer: Gabriel is 10 years old.

Step-by-step explanation:

Let x represent Gabriel's age and x+2 represent Moussa's age.

x(x+2)=120

x^2+2x=120

x^2+2x-120=0

(Factor quadratic equation): (x-10)(x+12)=0

                                                  x=10, x=-12 --> (age can't be negative)

Gabriel is 10 years old.

The measures of the exterior angles of a triangle are 6x°, 8x°, and 10x°. Solve for x.

Answers

The measures of the exterior angles of a triangle are 6x°, 8x°, and 10x°, and x equals 7.5°.

What is Angle?

Angle is a figure formed by two straight lines or planes diverging from or meeting at a common point. It is a measure of the amount of rotation between two lines or planes and is usually measured in degrees or radians. Angles can be classified as right angles, acute angles, obtuse angles, straight angles, and reflex angles. Angles are also used in geometry to describe the shape of an object or the relationship between two lines or planes.

To solve for x in the measures of the exterior angles of a triangle, use the formula 180°=6x°+8x°+10x°. Rearranging to isolate x, we get x=180°/24x°=7.5. Therefore, x=7.5°.

Conclusion: The measures of the exterior angles of a triangle are 6x°, 8x°, and 10x°, and x equals 7.5°.

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The triangle has exterior angles measuring 90°, 120°, and 150° and value of x is 15.

What is Angle?

Angle is a figure formed by two straight lines or planes diverging from or meeting at a common point. It is a measure of the amount of rotation between two lines or planes and is usually measured in degrees or radians. Angles can be classified as right angles, acute angles, obtuse angles, straight angles, and reflex angles. Angles are also used in geometry to describe the shape of an object or the relationship between two lines or planes.

The sum of the exterior angles of any triangle is always 360 degrees.

Therefore, we can set up the equation: 6x° + 8x° + 10x° = 360°

Simplifying the left side of the equation, we get: 24x° = 360° Dividing both sides by 24, we get: x° = 15°

Therefore, the measures of the exterior angles of the triangle are: 6x° = 6(15°) = 90°

8x° = 8(15°) = 120°

10x° = 10(15°) = 150°

So the triangle has exterior angles measuring 90°, 120°, and 150°.

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Laura is wrapping a gift that measures 6 inches by 13.5 inches by 3 inches. How much wrapping paper will she need to wrap the gift?

Responses

Answers

The amount of wrapping paper for the gift is A = 279 inches²

Given data ,

To calculate the amount of wrapping paper Laura will need to wrap the gift, we need to find the total surface area of the gift.

The surface area of a rectangular box is given by the formula:

Surface Area = 2 x (length x width + length x height + width x height)

Given that the length of the gift is 6 inches, the width is 13.5 inches, and the height is 3 inches, we can substitute these values into the formula:

Surface Area = 2 x (6 x 13.5 + 6 x 3 + 13.5 x 3)

Surface Area = 2 x (81 + 18 + 40.5)

Surface Area = 2 x 139.5

The surface area of a rectangular box = 279 inches²

Hence , Laura will need 279 inches² of wrapping paper to wrap the gift

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ne juice bottle of fruit juice contains total of 488 mg of phosphorus, rounded to the nearest milligram (mg). juice contains a total of 1.62 litres of juice, rounded to 2 d.p. The bo M the lower bound of the mass of phosphorus, in milligrams (mg), that there could be in 1 litre of the fruit juice.​

Answers

Answer:

To find the lower bound of the mass of phosphorus in 1 liter of the fruit juice, we need to assume that all of the phosphorus is concentrated in just one liter of the juice. Therefore, the lower bound will be the mass of phosphorus in the entire bottle divided by the total volume of the bottle, which is 1.62 liters.

The mass of phosphorus per liter of juice is given by:

488 mg ÷ 1.62 L ≈ 301.2 mg/L

Rounding this to the nearest milligram, we get:

301 mg/L

Therefore, the lower bound of the mass of phosphorus in 1 liter of the fruit juice is approximately 301 mg.

Given the polynomial 2x3 − 5x2 + 6x − 15, rewrite the polynomial as a product of binomials. a. (x2 + 3)(2x − 5) b. (x2 + 3)(2x + 5) c. (x2 − 3)(2x − 5)
d. (x2 − 3)(2x + 5)

Answers

The polynomial 2x³ − 5x² + 6x − 15 as a product of binomials is option (a) (x² + 3)(2x − 5).

To factor the polynomial 2x³ − 5x² + 6x − 15 into a product of binomials, we can use the technique of polynomial factorization by grouping.

Factor out the greatest common factor (GCF) from the first two terms and the last two terms separately

2x³ − 5x² + 6x − 15 = x²(2x − 5) + 3(2x − 5)

Notice that we have a common binomial factor of (2x − 5) in both terms. Factor out this common binomial factor

2x³ − 5x² + 6x − 15 = (2x − 5)(x² + 3)

Therefore, the polynomial 2x³ − 5x² + 6x − 15 can be factored as the product of binomials (2x − 5) and (x² + 3).

So, the correct option is (a) (x² + 3)(2x − 5).

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Instructions 1 Given the following information, answer the questions. Output per worker is 100 K VN The savings rate is 20%. The depreciation rate is 4%. Question 1 1 pts Calculate output per worker il capitale workeris 40.000 0 DO Question 2 1 pts Calculate Investment per werkeri coital per workers O,000. Hint Use your answer to the previous question D Question 3 1 pts Calculate the amount of depreciation or worker cooper workeris 40,000 D Question 4 1 pts Calculate netestit capital or workeris 40.000 Question 5 1 pts Is capital per weer growing, tating or staying the son of capitale workers 40.000 Grow For Site D Question 1 pts Castle capitair wurer D Question 7 1 pts Calculate net investment if capital per worker is 360,000.

Answers

The answers based on the given information:

1. Output per worker (Y/L) is given as 100. Capital per worker (K/L) is given as 40,000.

2. Investment per worker (I/L) can be calculated using the savings rate (s). I/L = s * (Y/L). Since the savings rate is 20% (0.20), I/L = 0.20 * 100 = 20.

3. Depreciation per worker can be calculated using the depreciation rate (d) and capital per worker (K/L). Depreciation per worker = d * (K/L). Since the depreciation rate is 4% (0.04), Depreciation per worker = 0.04 * 40,000 = 1,600.

4. Net investment per worker can be calculated by subtracting depreciation per worker from investment per worker. Net investment per worker = (I/L) - Depreciation per worker = 20 - 1,600 = -1,580.

5. Since the net investment per worker is negative, capital per worker is decreasing.

7. If capital per worker is 360,000, net investment can be calculated by multiplying the savings rate by the new output per worker (assuming it stays the same) and then subtracting the depreciation. Net investment = (s * (Y/L)) - (d * 360,000) = (0.20 * 100) - (0.04 * 360,000) = 20 - 14,400 = -14,380.

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5. In a regular polygon each exterior angle is 90° less than each interior angle. Calculate the number of sides of the polygon hence give its name.​

Answers

Answer:

8 sides and it's called an octagon.

Step-by-step explanation:

Let's begin by using the fact that the sum of the exterior angles of any polygon is always 360 degrees.

Let's call the measure of each interior angle "x". Then, you know that the measure of each exterior angle must be "x-90".

Using these expressions, you can find an equation for the sum of the exterior angles:

(number of sides) * (x-90) = 360

Simplifying this equation, you get:

number of sides = 360 / (x-90)

Now you just need to find a value of x that will make the number of sides an integer.

Since you know that the sum of the interior angles of any polygon is always (n-2)*180, where n is the number of sides, you can set up another equation:

(n-2)*180 = n*x

Simplifying this equation, you get:

n = 360 / (180-x)

You want both equations to give you an integer value of n, so you need to find a value of x that makes both denominators the same.

180-x = x-90

Solving for x, you get:

x = 135

Plugging this value of x into either equation gives you:

n = 360 / (180-135) = 360/45 = 8

So, the polygon has 8 sides and is called an octagon.

Prism P and prism Q are similar.
The ratio of the surface area of prism P to the surface area of prism Q is 1 : 3.

The volume of prism Q is 86
c
m
3
.

Calculate the volume of prism P.

Answers

The volume of prism P is calculated as: 16.55 cm³.

What is the volume of the prism?

Similar figures are defined as those figures that the same shape, but the sizes are different.

The parameters given are:

- Prism P and prism Q are similar.

- Ratio of the surface area of the prism P to Q = 1 : 3

We also have:

Volume of prism Q = 86 cm³

Scale factor of height of the prism would be square root of surface area of the prism.

Scale factor of volume of the prism would be the cube of the height of the prism.

Let volume of prism P be V(P)

Let the volume of the prism Q be V(Q).

Thus:

V(P) / V(Q) = 1 / (√3)³

V(P) = V(Q) / (√3)³

      = 86 / (√3)³

      = 16.55 cm³

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In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children given the Salk vaccine, are the requirements for a hypothesis test satisfied?a. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least 1000.b. The requirements are not satisfied; the difference between the rates of those that developed polio in the two groups is not statistically significant.

Answers

The requirements for a hypothesis test are satisfied.

To test the claim that the rate of polio is less for children given the Salk vaccine, we need to check if the requirements for a hypothesis test about two population proportions are met. The requirements are:

1. The samples are simple random samples and independent.
2. For each of the two groups, the sample size is at least 1000.

In this case, the study involved 401,974 children who were randomly assigned to two groups: the treatment group with 201,229 children and the placebo group with 200,745 children. This satisfies the first requirement, as the samples are simple random samples and independent. The sample size for both groups is also larger than 1000, meeting the second requirement.

Therefore, the requirements for a hypothesis test are satisfied, and we can proceed with testing the claim that the rate of polio is less for children given the Salk vaccine.

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Write a function in the form y=Mx+b for the line that contains the points (6.4,2.6)and(5.2,9)

Answers

Answer:

y=-5.3x+36.73

Step-by-step explanation:

a manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 433 gram setting. it is believed that the machine is underfilling the bags. a 11 bag sample had a mean of 429 grams with a standard deviation of 26 . assume the population is normally distributed. a level of significance of 0.02 will be used. specify the type of hypothesis test.

Answers

We used a standard deviation to determine whether the bag filling machine was underfilling the bags at the 433 gram setting that is falls within the range of -2.76 to 2.76

To determine whether we should reject or fail to reject the null hypothesis, we will use a hypothesis test with a level of significance of 0.02.

Plugging in the values from the problem, we get:

t = (429 - 433) / (26 / √11)

t = -1.38

To determine whether we should reject or fail to reject the null hypothesis, we will compare the calculated t-value to the critical t-value from the t-distribution table.

Looking up the critical t-value with 10 degrees of freedom and a level of significance of 0.01, we find a value of ±2.76.

Since our calculated t-value of -1.38 falls within the range of -2.76 to 2.76, we fail to reject the null hypothesis.

This means that there is not enough evidence to conclude that the bag filling machine is underfilling the bags at the 433 gram setting.

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What is the value of x?

sin 25° = cos x°

(a) 50
(b) 155
(c) 75
(d) 25
(e) 65

Answers

Answer: (E) 64

Sin 25 = cos (90-25)
Sin 25 = cos 65

The total number of centimeters a plant grew each week for the past 5 weeks was 13, 6, 10, 5, and 11. Suppose the mean for 6 weeks was 9 centimeters. How many centimeters did the plant grow the sixth week?

Answers

The required plant grew 9 centimeters in the sixth week.

Let x be the number of centimeters the plant grew in the sixth week.
To estimate x, we can use the formula for the mean (average) of a set of numbers:

mean = (sum of numbers) / (number of numbers)

We know the mean for 6 weeks is 9, so we can write:

9 = (13 + 6 + 10 + 5 + 11 + x) / 6

Multiplying both sides by 6, we get:

54 = 45 + x

Subtracting 45 from both sides, we get:

x = 9

Therefore, the plant grew 9 centimeters in the sixth week.

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The side lengths of a rectangular figure are dilated by a scale factor of 13. Which statement describes the figure that results?

A. The area of the original figure is 9 times the area of the figure that results.
B. The perimeter of the original figure is 9 times the perimeter of the figure that results.
C. The area of the original figure is 6 times the area of the figure that results.
D. The perimeter of the original figure is 6 times the perimeter of the figure that results.

Answers

The area of the original figure is 9 times the area of the figure that results

Which statement describes the figure that results?

From the question, we have the following parameters that can be used in our computation:

Scale factor = 3

This means that the area scale factor is

Area scale factor = 3²

Evaluate the exponent

So, we have

Area scale factor = 9

This means that the area of the original figure is 9 times the area of the figure that results.

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Orange traffic cones come in a variety of sizes. Approximate the volume, in cubic inches, of a traffic cone that has a height of 2 feet and a diameter of 14 inches.

Answers

The volume of the orange traffic cones is 102.63 in³ respectively.

What is a cone?

A cone is a recognizable three-dimensional geometric shape with a smooth and curving surface that is directed upward in mathematics. The

Greek word "konos," which denotes a peak or a wedge, is the source of the English word "cone."

The apex is the pointy end, while the base is the level area.

So, the cone volume is:

V=πr²h/3

Now, insert values as follows:

V=πr²h/3

V=π7²2/3

V=102.63

Therefore, the volume of the orange traffic cones is 102.63 in³ respectively.

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A recent conference had 875 people in attendance. In one exhibit room of 60 people, there were 46 teachers and 14 principals. What prediction can you make about the number of principals in attendance at the conference?

There were about 204 principals in attendance.
There were about 266 principals in attendance.
There were about 671 principals in attendance.
There were about 815 principals in attendance.

Answers

There were about 204 principals in attendance.

The correct option is (A).

What is Arithmetic?

The mathematical branch known as arithmetic deals with the study and application of numbers, their relationships, and mathematical observations.

As per the given data:

The total number of people in the recent conference = 875

The total number of people in one exhibit room = 60

Number of teachers in one exhibit room = 46

Number of principals in one exhibit room = 14

To find out the total number of exhibit rooms:

= Total number of people in the conference / total people in one room

= 875 ÷ 60

= 14.58 = 15 {rounding off to the nearest integer}

Number of principals in one exhibit room = 14

Total number of principals in the conference:

= Number of rooms × Principals in one room

= 15 × 14 = 210 which is equal to 204 {approximate answer}

There were about 204 principals in attendance.

Hence, There were about 204 principals in attendance.

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The surface area of the rectangular prism is
598cm² Solve for x

Answers

Answer:

x = 10 cm

Step-by-step explanation:

The total surface area of rectangular prism = [tex]2 (lb + bh + lh)[/tex]

Given,

l = x cm

b = 11 cm

h = 9 cm

TSA = 598 cm

Plugging in the values we get,

[tex]598 = 2(11x + 99 + 9x)\\20x = 299-99\\x = 10[/tex]

A company manufactures water bottles the list below describes the number of water bottles manufactured in three months

.February 4,100 water bottles
. March 7% more water bottles than in February
.April: 500 more water bottles than in march
what is the percent increase to the nearest percent in the number of water bottles the company manufactured from February to April?

Answers

Answer:

19%

Step-by-step explanation:

First, find how many water bottles were manufactured in March:

4,100 x 1.07 = 4387

Add 500 to the March number

4387 + 500= 4887

Then divide the April number by February

4887/4100= 1.19195

This means that there is a 19 percent increase of water bottles manufactured from February to April

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