All categories

4 years ago

Someone help me solve this please? I really need help . I appreciate if you do

Mathematics

1 answer:

inessss [21]4 years ago

6 0

Answer:

See below.

Step-by-step explanation:

R(s) is linear because for each equal change in x, there is an equal change in y. Each speed changes by 10 mph, and each Reaction distance changes by 22 ft. That shows a linear relation between speed and reaction distance.

B(s) is not linear since each time the speed changes by 10 mph, the Braking distance changes by a different amount.

Equation for Reaction distance:

Complete the table:

s = 10; R(10) = 22

s = 0; R(0) = 0

Slope = 22/10 = 2.2

R(s) = 2.2s

You might be interested in

When mindy went to china she exchanged her $1 for 6.589 yaun. What place is in the hundredths place of 6.589?

nata0808 [166]

The 8 is in the hundredths place.

Hope this helps & good luck. :)

3 0

4 years ago

Read 2 more answers

For a repeated-measures study comparing two treatments with a sample of n = 9 participants, the difference scores have a mean of

Korolek [52]

Answer: Estimated standard error for the sample mean difference would be 1.

Step-by-step explanation:

Since we have given that

Mean of MD = 4.90

So, Sum of difference would be

$4.9\times 9=44.1$

S = 288

n = 9

We need to find the standard error for the sample mean differences.

Estimated standard error for the sampled mean difference would be

$\dfrac{\sqrt{Sum(D^2)-(\dfrac{sum(d)^2}{n})}}{n(n-1)}}\\\\=\dfrac{\sqrt{288-\dfrac{44.1^2}{9}}}{9(9-1)}\\\\=0.99\\\\\approx 1$

Hence, estimated standard error for the sample mean difference would be 1.

6 0

3 years ago

24% of what number is 12

spin [16.1K]

If you would like to solve 24% of what number is 12, you can do this using the following steps:

24% of what number is 12
24% of x is 12
24% * x = 12
24/100 * x = 12 /*100/24
x = 12 * 100 / 24
x = 50

Result: 24% of 50 is 12.

8 0

3 years ago

Read 2 more answers

Help im diening please

Alina [70]

Answer:

y = x + 3

Step-by-step explanation:

To know which of the equations represent the relationship between x and y, you need to substitute the x and y values into the equation. If when the equation is solved, the left-hand and right-hand side of the equation equal each other and hence the equation is true, then the equation must be correct in expressing the relationship between the x and y values. If not, then it is not correct.

As this question is only dealing with linear equations, we know that the gradient of the line is constant and hence the rate of change in x and y values is constant. Therefore, we can choose to substitute any of the given combinations of x and y values into the equation to obtain the correct equation. As it is easier to use smaller numbers for smaller calculations, we'll use the first combination of x = 1 and y = 4 .

Equation No. 1 : y = 3x + 1 where x = 1 , y = 4 and x = 2 , y = 5

( 4 ) = 3 ( 1 ) + 1

4 = 4

However, as this equation has a constant not equal to 1 in front of the x variable and hence a different gradient to the other equations, we will substitute the second combination of x and y values.

( 5 ) = 3 ( 2 ) + 1

5 = 6

Therefore, equation is false / incorrect.

Equation No. 2 : y = x + 1 where x = 1 , y = 4

( 4 ) = ( 1 ) + 1

4 = 2

Therefore, equation is false / incorrect.

Equation No. 3 : y = x + 3 where x = 1 , y = 4

( 4 ) = ( 1 ) + 3

4 = 4

Therefore, equation is true / correct.

Equation No. 4 : y = x - 3 where x = 1 , y = 4

( 4 ) = ( 1 ) - 3

4 = - 2

Therefore, equation is false / incorrect.

8 0

3 years ago

How many whole numbers are there between 32 and 96?

Inessa05 [86]

Answer:

there are 20 while numbers between 32 and 96

Step-by-step explanation:

hope it helps and give me a brainliest

6 0

2 years ago