Answer:
24
Step-by-step explanation:
2(x-3)
2(15-3)
2(12)
24
Hopes this helps please mark brainliest
Answer:
24
Step-by-step explanation:
2(x - 3)
==> plug in x = 15
2(15 - 3)
==> subtract 3 from 15
2(12)
==> multiply 2 and 12
=24
Remember we evaluate using pemdas
Parenthesis
Exponents
Multiplication and Division (going left to right)
Addition and Subtraction (going left to right)
This is the order of operations we use to determine which operation we perform. Here we first used "parenthesis" and did all operations inside of the parenthesis. We then ended with multiplication
The chart shows the distances, in miles, between three places.
a)Write down the distance
from Hereford to Chester.
b) Which town is 99 miles
from Kendal?
c)If Ellen drives from Kendal to
Hereford via Chester, how
many miles will she drive?
The spreadsheet that shows the distances between the cities, indicates that the distances between the cities are as follows;
a) From Hereford to Chester, the distance is 95 miles
b) Chester is the town that is 99 miles from Kendal
c) Ellen will have driven 201 miles if she drives from Kendal to Hereford through Chester
What is a spreadsheet?A spreadsheet application is used for the storage analysis, organization, and computation of data.
The interpretation of the distances in the chart which is in the form of a spreadsheet are;
The value in the cell corresponding to the distance from Kendal to Chester that is the cell which is on the same column as Kendal and on the same row as Chester is 99
Therefore, the distance from Kendal to Chester is 99 miles
The value in the cell that directly links Chester to Hereford that is the cell which is on the same column as Chester and on the same row as Hereford is 95
Therefore, the distance from Chester to Hereford is 95 miles
The value in the cell that connects Kendal to Hereford, that is the cell which is on the same column as Kendal and which is on the same row as Hereford is 201
Therefore the distance from Kendal to Hereford is 201 miles
a) The distance from Hereford to Chester is 95 miles
b) The town that is 99 miles from Kendal is Chester
c) The distance Ellen will have driven if she drives from Kendal to Hereford via Chester is 201 miles
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4. If the landing angle at an airport is 4° and you are two miles out and ½ mile high, are you safe to land?
Yes, you are safe to land, If the landing angle at an airport is 4° and you are two miles out and ½ mile high.
Define the final approach.The final approach, also known as the final leg or final approach leg, is the last leg of an aircraft's approach to landing in aviation. During this leg, the aircraft is aligned with the runway and descending for a landing. In aircraft radio lingo, it is frequently abbreviated to "final".
Given,
If the landing angle at an airport is 4° and you are two miles out and ½ mile high,
Yes, you are safe to land.
A normal airport landing pattern calls for aircraft to turn from the base leg to the final within 0.5 to 2 miles of the airport when visual meteorological conditions (VMC) are present. A "straight-in" final approach, when all other legs are skipped, is frequently employed for instrument approaches as well as VFR approaches onto controlled airfields. At American non-towered airports, straight-in approaches are discouraged.
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For a given function f (x), the domain is -4 < x <7, the range is 2 < y < 9, and has the point (4,8) on the graph. If h (z) = f(x+4), then
the domain of h (z) would be
type your answer....
the range would be type your answer.....
and the corresponding point would be moved to (type your answer.....
type your answer.....
y< type your answer.....
Submit
The domain of h(z) would be (-8,3).
The range of h(z) would be (2,9).
Point (4,8) would be moved to (0,8)
What are the domain and range of a function?
The domain is the set of all x-values that can be used to make the function "work" and produce actual y-values.
A function's range is the variety of conceivable y-values (minimum y-value to maximum y-value)
For the function f(x):
Domain: (-4,7)
Range: (2,9)
The function f(x+4) is equal to 1 (f(x+4)).
This shows, inputs: -4, outputs: 1
Domain of f(x+4):
add -4 to the Domain values of f(x)
Domain:(-4-4,7-4)=(-8,3)
Range of f(x+4):
Multiply the range values of f(x) by 1
Range: (1*2,1*9)= (2,9)
Find, where the point (4,8) would be moved:
add -4 to 4, and multiply 8 by 1
(4-4,8*1)
=(0,8)
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A rectangular mural measures 238 centimeters by 435 centimeters. raegan creates a mural that is 27 centimeters longer. what's is the perimeter of ragans new mural
The perimeter of Ragans new mural is 530cm.
Rectangle:
A rectangle is a type of quadrilateral, whose opposite sides are equal and parallel. It is a four-sided polygon that has four angles, equal to 90 degrees. A rectangle is a two-dimensional shape.
Here it is given that the measure of the rectangle is 238 cm and 435cm.
The Raegan creates a mural that is 27cm.
The formula to calculate the perimeter of a rectangle:
Perimeter = 2(length + breadth)
Earlier the length is 238cm and the breadth is 435cm.
Now replace the breath 435cm to 27cm.
length = 238cm
breadth = 27cm
Therefore we get the perimeter of the rectangle:
Perimeter = 2( 238 + 27)
= 2( 265)
=530cm
Therefore the perimeter is 530cm.
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Answer:
1400
Step-by-step explanation:
Use the rules of measurement to divide
Answer:
[tex] \frac{ {m}^3{} }{25} [/tex]
Step-by-step explanation:
that is the answer
What is the slope of the line created by this equation?
Round your answer out to the two nearest decimal places
6x + 9y = 1
Answer:
-0.67
Step-by-step explanation:
What is the slope of the line created by this equation? Round your answer out to the two nearest decimal places. 6x + 9y = 1
_____________________________________________
Slope intercept form solves for y:
y = mx + b when m = slope and b = y-intercept
First, solve for y:
6x + 9y = 1
subtract 6x from both sides:
6x + 9y - 6x = 1 - 6x
9y = 1 - 6x
divide both sides by 9:
9y/9 = (1 - 6x)/9
y = 1/9 - 6/9x
reduce right side:
y = 1/9 - 2/3x
rearrange right side:
y = - 2/3x + 1/9
Back to the equation: y = mx + b when m = slope and b = y-intercept
your slope is -2/3
in decimal form, rounded to two digits: -0.67
I need help like asap !!!
only numbers and decimal points
Now we have to,
→ find the required value of b.
Formula we use,
→ (AC)² = (BC)² + (AB)²
Then the value of a will be,
→ (10.5)² = b² + (3)²
→ 110.25 = b² + 9
→ b² = 110.25 - 9
→ b = √101.25
→ [ b = 10.06 in ]
Hence, value of b is 10.06 in.
the graph of a lnear function passes through the point (-2, -7). When the input increses by 3 the value of the function increses by 8. what is the equation that models the function
The equation that models the function is y = 8/3(x) - 5/3.
Given:
The graph of a linear function passes through the point (-2, -7).
When the input increases by 3 the value of the function increases by 8.
(x,y) = (x+3,y+8)
(-2,-7) = (-2+3,-7+8)
= (1,1)
slope between (1,1) and (-2,-7) is m = -7-1/-2-1
= -8/-3
m = 8/3.
substitute m in y = mx + c
y = 8/3(x)+c
substitute (-2,-7)
-7 = 8/3(-2) + c
-7*3 = -16 + 3c
-21+16 = 3c
-5 = 3c
c = -5/3
y = 8/3(x) - 5/3.
Therefore the equation that models the function is y = 8/3(x) - 5/3.
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A school is painting its logo in the shape of a triangle in the middle of its sports field. The school wants the height of the triangle to be 8 feet. The area of the logo must be less than 48 square feet. (The school doesn't want to buy more paint.) Write an inequality that describes the possible base lengths (in feet) of the triangle.
Use "b" for the base length of the triangular logo.
Answer:
Step-by-step explanation:
We know that the area of a triangle is given by :-
Let b be the base (in feet) of the triangle .
it is given that , The school wants the height of the triangle to be 6 feet.
Then, the area of triangle will be :-
(1)
The area of the logo must be at most (less than or equal to) 15 square feet.
i.e. Area ≤ 15 square feet (2)
Now, Substitute the value of A from (1) into (2) , we get
Divide both sides by 3 , we get
r is a relation on the set of all nonnegative integers. (a,b) is in r if a and b have the same remainder when divided by 5
The relation accepts reflexive, symmetry, and transitive.
Recall that a relation R is reflexive if the element (x, x) belongs to R for all elements X in the domain of R.
If (x, y) belongs to R, then follows that (y, x) must likewise belong to R, making the situation symmetric.
And it is transitive if (x, y) and (y, z) belongs to R necessarily implies that (x, z) belongs to R.
Given r is a relation on the set of all nonnegative integers R(a,b)
Reflexive - YES. A given number a will always have the same remainder when divided by 5.
Symmetric - YES. If a and b have the same remainder when divided by 5, then b and a are the same pair, so again they will have the same remainder.
Transitive - YES. If a and b as well as b and c have the same remainder when divided by 5, this is possible if both a and c also have the same remainder when divided by 5.
Therefore the relation accepts reflexive, symmetry, and transitive.
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help meeeeeeeeeeeeeee pleaseee
Answer:
You have to place the numbers given or your left in the formula given. So for example: y= 2*(-2)^2
that's: y=2*4, so: y=8
1) y=8
2) y= 2*(-1)^2. y=2
3) y= 2*(0)^2. y=0
4) y= 2*(1)^2. y=2
5) y= 2*(2)^2. y=8
Plssssss Help mewith a and b
a. The relationship between time and distance is not an arithmetic sequence, as the rate of change is not constant.
b. The distance is given by: d(n) = 5n².
What is an arithmetic sequence?An arithmetic sequence happens when the change in the output is always the same when the input changes by one, that is, the rate of change is constant.
From the table, the increases when the input(time) increases by one are given as follows:
15, 15, 35, 45.
The increases are not constant, hence the relationship between time and distance is not an arithmetic sequence.
What is the distance at t = n?The equation for the distance is given as follows:
d(t) = 0.5gt².
The constant is:
g = 10.
Hence:
d(t) = 5t².
At a time of n seconds, the distance is found replacing the lone instance of t by n, hence:
d(n) = 5n².
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Pls help ASAP the question is in the picture
The cost
C
, in £, of a monthly phone contract is made up of the fixed line rental
L
, in £, and the price
P
, in £, of the calls made. Enter a formula for the cost and, enter the cost if the line rental is £20 and the price of calls made is £15.
The formula for the cost if the line rental is £20 and the price of calls made is £15 will be 20 + 15p.
How to calculate the cost?It should be noted that an expression is used to illustrate the relationship given between the variables.
In this case, the monthly phone contract is made up of the fixed line rental and the price represented by p.
The appropriate expression to illustrate this information will be:
= Fixed cost + Calls made
= 20 + 15(p)
= 20 + 15p
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a researcher measures the amount of sugar in several cans of the same soda. the mean is 39.01 with a standard deviation of 0.5. the researcher randomly selects a sample of 100. find the probability that the sum of the 100 values is greater than 3,908. (round your answer to four decimal places.)
Using the concepts of probability, we got that 0.0764 is the probability that the sum of the 100 values is greater than 3,908 when a researcher measure the amount of sugar in several cans of the same soda.
The z-score of a measure X of a normally distributed variable with mean and standard deviation is given by:
Z=(X-μ)/σ
The z-score measures how many standard deviations the measure is above or below the mean.Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation .For this problem, these parameters are given as follows:
μ=39.01,σ=0.5,n=100,s=0.5/√100=0.05
A sum of 3908 is equivalent to a sample mean of 3908/100 = 39.08, which means that the probability is the p-value of Z when X = 39.08, hence:
Z=(X-μ)/σ
By the Central Limit Theorem:
Z=(X-μ)/s
=>Z=(39.08-39.01)/0.05
=>Z=(0.07)/0.05
=>Z=7/5
=>Z=1.4
Z = 1.4 has a p-value of 0.0764.
Hence, the probability that the sum of the 100 values is greater than 3,908 is 0.0764.
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Expand and simplify:
3(2p - 5) + 2(p + 3)
Answer:
8p - 9
Step-by-step explanation:
→ Expand brackets
6p - 15 + 2p + 6
→ Collect like terms
8p - 9
rearrange the formula below to make 'a' the new subject:
[tex]c + \frac{1}{2} a^{2}b = d[/tex]
Answer:
a = ± [tex]\sqrt{\frac{2d-2c}{b} }[/tex]
Step-by-step explanation:
c + [tex]\frac{1}{2}[/tex] a²b = d ( multiply through by 2 to clear the fraction )
2c + a²b = 2d ( subtract 2c from both sides )
a²b = 2d - 2c ( divide both sides by b )
a² = [tex]\frac{2d-2c}{b}[/tex] ( take square root of both sides )
a = ± [tex]\sqrt{\frac{2d-2c}{b} }[/tex]
Can someone teach me how to do this?
sin^-1(-1/2) enter directly into a calculator and you'll find your answer
equation of the line that passes through the points (1,-4)(1,−4) and (5,-1)(5,−1). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line.
The equation of the line in the slope-intercept form will be y = (3/4)x + 13/4.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
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.
The points are given below.
(1, −4) and (5, −1)
The equation of the line that passes through (1, −4) and (5, −1) will be given as,
(y + 4) = [(−1 + 4) / (5 − 1)](x − 1)
y + 4 = (3/4)x − 3/4
y = (3/4)x + 13/4
The equation of the line in the slope-intercept form will be y = (3/4)x + 13/4.
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A sample of a radioactive isotope had an initial mass of 110 mg in the year 1990 and decays exponentially over time. A measurement in the year 1993 found that the sample's mass had decayed to 90 mg. What would be the expected mass of the sample in the year 2002, to the nearest whole number?
50 mg be the expected mass of the sample in the year 2002, to the nearest whole number
In 1990, a sample of a radioactive isotope had an initial mass of 110 mg and decayed exponentially over time.
A measurement in 1993 revealed that the sample's mass had decayed to 90
110 mg - 90 mg = 20 mg (amount decayed in the 3 total years)
20 mg ÷ 3 years = 6.6 mg decayed per year
6.6 × 9 years (years between 1993 and 2002) = 60 mg
110 mg - 60 mg = 50 mg, rounded to 50 mg
50 mg be the expected mass of the sample in the year 2002, to the nearest whole number
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The Clark's updated their living room by purchasing a new chair for $162.98. They paid 9% sales tax on their purchase. If
the Clark's paid $180.98 total, determine if they paid the correct amount.
Can somone help me with this will mark u brainliest
Answer: 2[tex]\sqrt{2}[/tex]
Step-by-step explanation: First plug in the value, which is [tex]\sqrt{8}[/tex]
Then divided to 2[tex]\sqrt{2}[/tex]
A spinner with 9 equal sections is numbered 1 through 9. The probability of spinning a 3 is 1/9. What is the probability of not spinning a 3 is what
The probability of not spinning a 3 is 8/9
How to determine the probability that the number 3 is not spun?From the question, the given parameters are:
Number of sections = 9
Sections = Number 1 to 9
The probability of spinning a 3 = 1/9
The above probability can be represented as
P(3) = 1/3
The probability that the number 3 is not spun is the complement of the probability of spinning a 3
This is calculated as
P(3) + P(Not 3) = 1
Substitute the known values in the above equation So, we have the following equation
1/9 + P(Not 3) = 1
Evaluate the like terms
P(not 3) = 8/9
Hence, the probability is 8/9
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Jason is training to run in a marathon. His goal for this week is to run a minimum of 45 miles. So far this week, he has already run 10 miles. Which inequality could be used to determine the mean number of miles, m, he would need to run each day for 5 more days to achieve his goal?
The inequality that could be used to determine the mean number of miles Jason would need to run each day for 5 more days to achieve his goal is 10 + 5m ≥ 45
What is an inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
Let the number of miles be given as m.
Since his goal for this week is to run a minimum of 45 miles. So far this week, he has already run 10 miles. This will be:
10 + 5m ≥ 45
This expresses the inequality.
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The measures of the angles of a triangle are shown in the figure below. Solve for x.
71°
(2x+5)
62⁰
Answer:
x=21
Step-by-step explanation:
The angles of a triangle always add up to 180°
71+62+(2x+5)=180
First add 71 and 62
133+(2x+5)=180
Then you subtract 133
2x+5=47
Subtract 5 too
2x=42
Then divide by 2
x=21
We can check our answer by adding all the angles
71+62+(2*21+5)
71+62+(42+5)
71+62+47=180
PLEASE HELP! I WILL NAME YOU THE BRAINLIEST!
THE THING IS IN THE PHOTO!
Work does not need to be shown.
Answer: The correct answer is Option D: h=2A/(b1+b2)
Step-by-step explanation:
Solve for h:
a=(1/2h)(b1+b2)
Step 1: Flip the equation
1/2b^2h+1/2b1h=a
Step 2: Factor out variable h
h((b2+b1)/2)=a
Step 3: Divide both sides by (b^2+b1)/2
h((b2+b1/2))/(b2+b1/2)=(a/(b2+b1)/2)
h=2a/(b2+b1)
Remember to vote for this as Brainliest if I earned it! :)
solve for x and find each angle measure
(7x-32)
(5x-27)
(9x-8)
equation
x:
please help me !!
it’s for a quiz
Answer:
Step-by-step explanation:
187
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A rectangle that maximize the enclosed area has a length 800 yards and width is 800 yards. The maximum area is 640,000 square yards.
In the given question we have to find the maximum area of the rectangular area.
Liana has 3200 yards of fencing to enclose a rectangle.
So we know that the perimeter of rectangle is
P= 2(l+b)
Let length of the rectangle is x yards and width is y yards.
So the equation should be
2(x+y) = 3200
Divide by 2 on both side we get
x+y = 1600................(1)
As we know the area of rectangle is
A = xy
From the equation the value of y is 1600-x.
Now putting the value of y
A = x(1600-x)
A = 1600x-x^2
On differentiating
dA/dx = 1600-2x
Putting dA/dx=0
1600-2x=0
Subtract 1600 on both side we get
-2x= -1600
Divide by -2 on both side we get
x = 800 yards
Now putting the value of x in the y=1600-x
y=1600-800
y=800 yards
So the maximum area is
A= 800*800
A= 640,000 square yards
Hence, a rectangle that maximize the enclosed area has a length 800 yards and width is 800 yards. The maximum area is 640,000 square yards.
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Will give u brainliest! on thses 2 questions
Answer:
1: [tex]2\sqrt{2}[/tex]
2: [tex]10\sqrt{55}[/tex]
Step-by-step explanation:
[tex]\sqrt{16-8}[/tex]
[tex]\sqrt{8}[/tex]
[tex]\sqrt{8}=2\sqrt{2}[/tex]
2:
[tex]\sqrt{\frac{11}{16+4}[/tex]
[tex]\sqrt{\frac{11}{20}[/tex]
[tex]\sqrt{.55}[/tex]
[tex]10\sqrt{55}[/tex]
Hopes this helps
(25x^2+4-30x)-(9x^2+4-12x)
Answer:
16x² - 18x
Step-by-step explanation:
(25x² + 4 - 30x) - (9x² + 4 - 12x) ← distribute this parenthesis by - 1
= 25x² + 4 - 30x - 9x² - 4 + 12x ← collect like terms
= (25x² - 9x²) + (4 - 4) + (- 30x + 12x)
= 16x² + 0 + (- 18x)
= 16x² - 18x
