Answer:
27
Step-by-step explanation:
4.5*3*2 = 27
What is -2 1/3 x 5/4
Answer:
-2 11/12
Step-by-step explanation:
-2 1/3 x 5/4
-7/3 x 5/4 = -35/ 12
-35/-12= -2 11/12
* Required Problem Set 1 A swimming pool has 150 gallons of water in it. It fills up at a constant rate of 30 gallons every 2 hours. The initial value is 30 gallons every 2 hours * O True O False
False. The initial value is 0 gallons every 2 hours because the pool already has 150 gallons of water in it.
Represent "the product of 3 and a number" algebraically Use n to represent "a number". DO NOT USE ANY SPACES! Use only +,-,*,/ for operation symbols
Answer:
The product of 3 and a number can be represented as:
[tex]3n[/tex]
Find the value of x.
a. 53°
b. 72°
c. 48°
d. 39°
Answer:
Step-by-step explanation:
yes it is b
The equation y = 400x represents the relationship between x, the time that a plane flies in hours, and y, the distance the plane flies in miles for Plane A. The table represents the relationship for Plane B. Find the slope of the graph for each plane and the plane's rate of speed. Determine which plane is flying at a faster rate of speed.
The slope of line is 400 and plane A's rate of speed is 400 mi/h
The slope of line is 475 and plane B's rate of speed is 475 mi/h
Therefore, Plane B is flying faster.
For Plane A the equation y = 400x represents the relationship between x, the time that a plane flies in hours, and y, the distance the plane flies in miles.
We know the equation of line is y =mx + c
m = slope of line
So, on comparing slope of line is 400 and plane A's rate of speed is 400 mi/h
For Plane B
We know the formula for slope = (y₂-y1)/(x₂ - x₁)
= (950 - 475)/(2 - 1)
= 475
So, slope of line is 475 and plane B's rate of speed is 475 mi/h
Therefore, Plane B is flying faster.
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A pack of 12 pens cost $3.25 what is the cost of one pen
Therefore, using simple division, the price of one pen is calculated to be around $0.27.
Describe Division.In mathematics, division is the process of dividing an integer into equal pieces or groups. It performs multiplication in the other direction. To obtain the quotient or outcome in division, an even number has been divided by another integer, known as the divisor.
We must divide the total expense of the 12-pen pack by the quantity of pens in the box in order to figure out the price of one pen:
Price of one pen is equal to the sum of the pack's pen costs divided by the number of markers in the pack.
In this instance, we may substitute these values as we are aware that the set of 12 pens costs $3.25.
In this instance, we may enter the following values into the calculation as we are aware that the set of 12 markers costs $3.25:
One pen costs $3.25 divided by 12
Long division or using a calculator, we obtain:
One pen costs $0.27.
Consequently, the price of a pen is roughly $0.27.
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For questions 23, use a Venn diagram or truth table or common form of an argument to decide whether each argument is valid or invalid.
23. If a person is on this reality show, they must be self-absorbed. Laura is not self-absorbed. Therefore, Laura cannot be on this reality show.
In the Venn diagram , the statement is Valid.
What is Venn diagram?
Venn diagrams are frequently used in mathematics, statistics, logic, teaching, linguistics, computer science, and business. They are also known as Set diagrams or Logic diagrams.
Here according to the Venn diagram , if person is on the reality show , they must be self absorbed. But Laure is not self absorbed so she cannot be on the reality show.
Hence the statement is valid.
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9) Find the 10th term in the
sequence.
9) 2, 4, 12, 48, 240, ...
A) a
5828046
a 10
B) a = 3765310
10
C) a = 4678865
10
D) a = 7257600
10
The 10th term of the sequence is 7,257,600. Option D.
Arithmetic sequenceTo find the 10th term in the sequence, we can use the pattern to generate the next terms:
The first term is 2.
To get the second term, we multiply the first term by 2: 2 × 2 = 4.To get the third term, we multiply the second term by 3: 4 × 3 = 12.To get the fourth term, we multiply the third term by 4: 12 × 4 = 48.To get the fifth term, we multiply the fourth term by 5: 48 × 5 = 240.Therefore, to get the 10th term, we can multiply the fifth term by 6, then by 7, then by 8, and then by 9:
5th term = 2406th term = 240 × 6 = 14407th term = 1440 × 7 = 100808th term = 10080 × 8 = 806409th term = 80640 × 9 = 72576010th term = 725760 × 10 = 7257600Therefore, the 10th term in the sequence is 7,257,600.
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Give one pair of vertical angles and one pair of supplementary angles shown in the figure below.
which radian measure is equivalent to 300°?
• 5/3
• 11pi/6
• 5pi/6
• 5pi/3
The radian measure that is equivalent to 300° is equal to 5π/3. So, correct option is D.
To convert degrees to radians, we use the conversion factor of π/180, which means that one degree is equal to π/180 radians. Therefore, to convert 300° to radians, we multiply 300 by π/180:
300° * π/180 = 5π/3
To understand this conversion, we need to remember that radians are a unit of measurement for angles, just like degrees. However, while degrees divide a circle into 360 equal parts, radians divide a circle into 2π equal parts. One full rotation is equal to 2π radians, which is also equal to 360°.
Since 5π/3 radians is less than one full rotation, it represents an angle that is less than 360°. In fact, 5π/3 radians is equivalent to 300°, which is a well-known angle used in many contexts, such as in geometry, trigonometry, and physics.
In summary, to convert 300° to radians, we multiply it by the conversion factor π/180, which gives us the equivalent angle measure of 5π/3 radians.
So, correct option is D.
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What is the distance between the coordinates (2, 9) and (10, 6)? Round your
answer to the nearest tenth.
Answer here
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SUBM
Answer:
8.54
Step-by-step explanation:
√(6-9)²+(10-2)2
=√(-3)²+8²
=√9+64
=√73=8.54
The answer is 8.54
Determine the interval(s) for which the function shown below is increasing.
Answer:
Step-by-step explanation:
When x≥2 the function is increasing. you read the graph from left to right
Can also be written [-2, +∞)
Can anyone tell me this worksheet and how to do it? Btw whenever I divide, I will have to turn it into a fraction and if the fraction isn’t simplified I will have to simplify it to a good looking fraction. Example: 0.75/1.25 would be 3/5in, scale drawing goes on top, actual goes on bottom. Remember you have to do proportional set up. it’s like that.
The scale factor of the given images above is as follows:
1.) 5/3
2.) 7/10
3.) 7/3
4.) 3/2
How to determine the scale factors of the given images?For image 1.), the image was scaled down.
scale factor = original image dimensions/scale drawing
= 1.25/0.75
proportional set up = 125/75 = 5/3
For image 2.) the image was scaled up.
scale factor = Bigger dimensions/smaller dimensions
= 3.5/2
proportional set up = 35/20 = 7/10
For image 3.) the image was scaled down.
scale factor = original image dimensions/scale drawing
= 1.75/0.75
proportional set up = 175/75 = 7/3
For image 4.) the image was scaled up.
scale factor = Bigger dimensions/smaller dimensions
= 6/4 = 3/2
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2. If you know the correlation coefficient between two tests is +.79, you expect a person who gets a
high score on one of the tests to get a _____score on the other test.
Answer:
"high" should go in the blank. A correlation coefficient of .79 indicates a pretty strong positive correlation.
2c – 4 = 3(4 – 2c) c = –4a + 9 = –2(4 + 5a) – 7 a =
Answer:
c=7/2, a = 5/34
Step-by-step explanation:
Michelle has four credit cards with the balances and interest rates listed below. She would like to consolidate all of her credit cards in a single credit card with an interest rate of 16% and pay off the balance in 36 months. If she did so, what would Michelle’s monthly credit card payment be?
Credit Card
Balance
APR
#1
$4,380
17%
#2
$1,365
19%
#3
$2,480
23%
#4
$5,000
15%
a.
$367.36
b.
$464.95
c.
$685.23
d.
$826.56
Answer:
mark me brilliant
Step-by-step explanation:
To calculate Michelle’s monthly credit card payment, we need to find the total amount she owes and then divide it by the number of months she has to pay it off.
First, we need to find the total balance on Michelle’s credit cards:
$4,380 + $1,365 + $2,480 + $5,000 = $13,225
Next, we need to find the weighted average interest rate of her credit cards. To do this, we multiply each balance by its corresponding APR and add up the results. Then we divide by the total balance:
($4,380 x 0.17) + ($1,365 x 0.19) + ($2,480 x 0.23) + ($5,000 x 0.15) = $1,038.55
$1,038.55 ÷ $13,225 = 0.0785, or 7.85%
Now we can use the total balance and the weighted average interest rate to calculate Michelle’s monthly payment using the formula for a fixed payment on a loan:
P = (r(PV)) / (1 - (1 + r)^-n)
Where:
P = monthly payment
r = monthly interest rate (as a decimal)
PV = present value of the loan
n = number of payments
r = 0.16 ÷ 12 = 0.01333 (monthly interest rate)
PV = $13,225
n = 36
P = (0.01333(13,225)) / (1 - (1 + 0.01333)^-36) = $367.36
Therefore, Michelle’s monthly credit card payment would be $367.36 if she consolidated all of her credit card debt into a single credit card with an interest rate of 16% and paid it off in 36 months. The answer is (a) $367.36.
In a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappropriately. A total of 2765 employers responded to the survey, with 964 saying that they had sent an employee home for inappropriate attire. In a press release, the website makes the claim that more than one-third of employers have sent an employee home to change clothes.
A button hyperlink to the SALT program that reads: Use SALT.
Do the sample data provide convincing evidence in support of this claim? Test the relevant hypotheses using
= 0.05.
For purposes of this exercise, assume that it is reasonable to regard the sample as representative of employers in the United States. (Round your test statistic to two decimal places and your P-value to four decimal places.)
z =
P-value =
pls help me with this
The expression of the perimeter of the triangle is 15h - 6k + 12m.
How to find the perimeter of a triangle?A triangle is a polygon with three sides. The sum of angles in a triangle is 180 degrees.
The perimeter of a triangle is the sum of the whole three sides of the triangle.
Therefore, let's find the perimeter of the triangle with side length (5h - 4k), (10h + 7m) and (5m - 2k).
Therefore,
perimeter of a triangle = 5h - 4k + 10h + 7m + 5m - 2k
collect like terms
perimeter of a triangle = 5h + 10h - 4k - 2k + 7m + 5m
Therefore,
perimeter of a triangle = 15h - 6k + 12m
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Find P(A')) if P(A) =0.64
If P(A) is 0.64, then P(A') is 0.36. P(A) is probability of occurrence of event A.
This question pertains to Probability principles. Probability is a measure of the possibility of an event occurring. Many occurrences cannot be foreseen with absolute accuracy. We can only anticipate the likelihood of an event occurring using it.
A is an occurrence in this context. A' denotes the event's complement.
For example, if Event A is getting heads on a coin toss, then Event A' is getting tails.
This demonstrates one thing:
A ∪ A' = U, here U is the universal set.
P ( U) = 1
P (A) + P(A') = 1
0.64 + P (A') = 1
P(A') = 1 - 0.64
P (A') = 0.36
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What is the decimal equivalent of 7/12? A. 0.583 B. 0.58 C. 0.583 D. 5.83
who ever answers the question right i will make them a brainlest
Answer:
c
Step-by-step explanation:
I hope it help :)
find an equation of a parabola with a vertex at the origin and directrix y=-1.5.
x=-1/6y^2
x=1/6y^2
y=-1/6x^2
y=1/6x^2
Step-by-step explanation:
We know that the vertex of the parabola is at the origin, so the equation must have the form:
y = a x^2
where a is a constant.
We also know that the directrix is y = -1.5, which means that the focus is located at (0, 1.5).
Using the formula for the distance between a point (x, y) and a line ax + by + c = 0, which is given by:
d = |ax + by + c| / sqrt(a^2 + b^2)
we can find the value of a. The distance from the vertex (0, 0) to the directrix y = -1.5 is equal to the distance from the vertex to the focus (0, 1.5), so we have:
d = |y - (-1.5)| / sqrt(1^2 + 0^2) = sqrt(x^2 + (y - 1.5)^2) / sqrt(0^2 + 1^2)
Simplifying this equation, we get:
sqrt(x^2 + (y - 1.5)^2) = |y + 1.5|
Squaring both sides, we get:
x^2 + (y - 1.5)^2 = (y + 1.5)^2
Expanding and simplifying, we get:
x^2 = 3y
So the equation of the parabola with vertex at the origin and directrix y = -1.5 is:
y = (1/3)x^2
Therefore, the correct answer is: y = (1/3)x^2.
Calculate the area of the red triangle to find the area of the garden. Show your work. (2 points)
Using a metric standard of 2 meters, then the area of the red triangle would be 54m². The area of the garden would be; 500m²
Using typical walkway widths to 6 ft, to calculate the area the red triangle to be 486 square feet and the area of the garden to be about 4400 square feet, rounding up.
Then it is a right triangle and side a is the altitude or height of the triangle and side b is the base.
The measurements of the triangle are approximately in the proportion of 3, 4, 5, a typical "Pythagorean Triple" right triangle.
Estimating from rough measurements of the triangle and the dimensions of the garden as shown, the area of the garden is about 18 times the area of the red triangle.
The area of the triangle is half the area of a rectangle with the same side lengths a & b, therefore, 9 ab is a good estimate of the area of the garden.
Area of the triangle estimate:
A = 36ft × 27ft /2
A = 486 square feet
To estimate 2 meter wide sidewalk, the area of the triangle can be reasonably calculated to be;
A = 9m × 12m /2 = 54 m²
The area of the garden = 9 × 54 = 486m²
Then rounded reasonably to 500m²
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Calculate the area of the shaded region for the given figure.
The area of the shaded region of the given figure would be = 47.1.
How to calculate the area of the shaded figure?To calculate the area of the shaded figure, the formula of the area of a sector of a circle is used such as;
area of sector = ∅/360πr²
∅ = 40°
r = 12
area = 40/360 × 3.14× 12×12
= 18086.4/360
= 50.24
Area of the unshaded portion
radius = 12-9 = 3
area = 40/360×3.14×3×3
= 1130.4/360
= 3.14
Therefore area of the shaded portion;
= 50.24- 3.14
= 47.1
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Write the solution set to x ≥ 2 in interval notation.
Answer:
[2, ∞)
Step-by-step explanation:
We Know
The solution set to x ≥ 2, meaning the 2 ≤ x < ∞
So, the interval notation is [2, ∞)
The table represents a quadratic function C(t).
t C(t)
−2 1
−1 4
0 5
1 4
2 1
What is the equation of C(t)?
C(t) = −(x − 5)2
C(t) = (x − 5)2
C(t) = −x2 + 5
C(t) = x2 + 5
g(x) = (x − 4)2 − 3
g(x) = (x − 4)2 + 3
g(x) = (x + 4)2 − 3
g(x) = (x + 4)2 + 3
From the given table, the equation of C(t) is - t² + 5. that is option C
How to determine the equation of the parabola?The standard form is (x - h)² = 4p (y - k), where the focus is (h, k + p) and the directrix is y = k - p.
Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The table represents a quadratic function C(t).
t C(t)
−2 1
−1 4
0 5
1 4
2 1
From the table, the coordinate of the vertex will be at (0, 5). Then the equation is given as,
C(t) = a(t - 0)² + 5
C(t) = at² + 5
The equation is passing through the point (1, 4), then we have
4 = a (1²) + 5
4 = a + 5
a = - 1
The equation that presents the table will be C(t) = - t² + 5. Then the correct option is C.
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matt had 4/6 bag of peanuts. He ate a quarter of what was in the bag. How much of a full bag of peanuts did Matt eat?
Matt ate 1/6 of the bag of peanut
Matt had 4/6 bag of peanut
He ate a quarter of what was in the bag
The amount of peanut he ate can be calculated as follows
= 4/6 × 1/4
= 4/24
= 1/6
Hence Matt ate 1/6 of the bag of peanut
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Mary is traveling cross country on a road trip. So far, Mary has traveled 200 miles in her car and 200 miles by train. The car traveled at a rate that was 30 miles per hour slower than the train.
Mary modeled the total time for her trip with the following expression.
What does x - 30 represent in this situation?
Answer:
The answer to your problem is, x-30 is speed of the car.
Step-by-step explanation:
Let the object is moving n miles in one hour.
Let the speed is m miles per hour.
We know that our friend Mary has traveled 200 miles in her car and 200 miles by train. And shown Mary also modeled the total time for her trip;
[tex]\frac{200}{x}[/tex] + [tex]\frac{200}{x-30}[/tex]
The car that was given had traveled at a rate that was 30 miles per hour slower than the train.
speed of the train is x miles per hour
speed of the car = x - 30 miles per hour.
Thus the answer to your problem is, x-30 is speed of the car.
Find the annual interest rate. (Round your answer to the nearest whole number.)
Principal
Balance
$4000
$62,702.95
Enter a number.
Need Help?
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Time
20 years
Compounding
Quarterly
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Answer:
[tex]\text{Annual interest rate = 14 \%}[/tex]
Step-by-step explanation:
The formula for computing accrued amount(principal + interest) is given by
[tex]A = P\left (1 + \dfrac{r}{n}\right )^{nt}[/tex]
where
P =principal amount
r = annual interest rate as a decimal
n = number of times compounded per year
t = number of years
A = amount accrued at the end of t years
We are given
A = 62702.95
P = 4000
n = 4 since we are compounding quarterly, i.e. 4 times a year
t = 20
Plugging in known values into the equation we get
[tex]62702.95 = 4000\left(1 +\dfrac{r}{4}\right)^{4 \cdot 20}\\\\62702.95 = 4000\left(1 +\dfrac{r}{4}\right)^{80}\\\\[/tex]
Switch sides and divide both sides by 4000 to get
[tex]\left(1 +\dfrac{r}{4}\right)^{80} = \dfrac{62702.95}{4000}[/tex]
[tex]1 +\dfrac{r}{4}\right) = \left(\dfrac {62,702.95}{4000}\right)^{\dfrac{1}{80}}\\\\\text{Using a calculator,}\\1 +\dfrac{r}{4}\right) = 1.03499\dots \approx 1.035[/tex]
[tex]\dfrac{r}{4} = 1.035 - 1 = 0.035\\\\r = 4 \times 0.035\\\\\\r = 0.14\\\\\\[/tex]
As a percentage that would be
[tex]0.14 \times 100 = 14\%[/tex]
The number of students earning master's degrees in mathe
g(x) = 7x² -226x + 4941, where x represents the number o
mathematics or statistics in that country in 2009.
The number of students earning master’s degrees in mathematics or statistics in the country in 2009 was 4474.
We are given that;
g(x) = 7x² -226x + 4941
Now,
To find the number of students in 2009, we need to plug in x = 9 into the function g(x), since 2009 is 9 years after 2000.
g(9) = 7(9)² -226(9) + 4941
g(9) = 7(81) -2034 + 4941
g(9) = 567 -2034 + 4941
g(9) = 4474
Therefore, according to the function g(x) the answer will be 4474.
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Find the equation of a line parallel to −5x+y=−4that passes through the point (−7,−9).
The equation of the line is parallel to -5x+y=-4 and passes through the point (−7,−9) is y=5x+26.
Given that, the equation of the line is parallel to -5x+y=-4 and passes through the point (−7,−9).
The given equation can be written as y=5x-4.
Now, compare y=5x-4 with y=mx+c, we m=5
The slope of a line parallel to given line is m1=m2
So, the slope of the line parallel to the given line is 5.
Now, substitute m=5 and (x, y)=(-7, -9) in y=mx+c, we get
-9=5(-7)+c
c=-9+35
c=26
So, the equation is y=5x+26
Therefore, the equation of the line is parallel to -5x+y=-4 and passes through the point (−7,−9) is y=5x+26.
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