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SCORPION-xisa [38]
3 years ago
12

What is the solution to the equation 5=2/5a A.2 B.4 3/5 C.12 1/2 D.25

Mathematics
2 answers:
Maurinko [17]3 years ago
5 0

Answer:

C.12 1/2

Step-by-step explanation:

5=2/5a

Multiply each side by 5/2 to isolate a

5/2 * 5 = 5/2 * 2/5 a

25/2 = a

12 1/2 = a

dlinn [17]3 years ago
5 0

Answer:

<u><em>x=32 </em></u>

Step-by-step explanation:

<u><em>(32-5)^(2/3)=9</em></u>

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Finger [1]

Answer:

y = 6/5x -7

Step-by-step explanation:

6 0
3 years ago
How do you solve these problems?
Fed [463]

Answer:

Step-by-step explanation:

Hello,

a. The area of region P is the area of the rectangle 1 * e minus the

\displaystyle \int\limits^0_1 {e^x} \, dx=[e^x]^{1}_{0}=e-1

So this is e - (e-1) = e - e + 1 = 1

b. The area of region P is the area of the rectangle 1 * e minus P and minus the

\displaystyle \int\limits^0_1 {e^{-x}} \, dx=[-e^{-x}]^{1}_{0}=-e^{-1}+1

So this is

e - 1 - (-e^{-1}+1) = e-1+e^{-1}-1=e+e^{-1}-2

This is around 1.08616127...

Hope this helps.

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8 0
3 years ago
What does adding or subtracting from the
Ulleksa [173]

By adding or subtracting from the exponent in an exponential, it can cause the graph to be translated left or right on the grid.

By adding or subtracting from an exponential function, it can cause the graph to be translated up or down on a grid.

7 0
3 years ago
For each of the following situations, state whether the appropriate test would be a Independent Samples T test or Paired T Test,
Anvisha [2.4K]

Answer:

B. Paired T Test

B. H0: μd = 0 and Ha: μd < 0 where μd= mean difference in blood pressure (calculated as aspirin - placebo)

Step-by-step explanation:

As the experiment is based on the difference between the results of a pair, the most appropiate test is a paired t-test.

If the 80 people group had been dividided in 2 and then compare the means for each group, it would have been a independent samples t-test.

For each pair, a variable d (for difference) is calculated and used as the outcome sample to perform the test.

Then, the null hypothesis will state that the population mean for this difference is not significantly different from 0, and the alternative hypothesis claiming it is signficant different from 0.

The sample means for the treatment group and the placebo is not individually calculated, as only the difference for each pair is used as sample in a paired t-test.

7 0
4 years ago
Write a polynomial expression, in simplified form, that represents the AREA of the blanket and use the expression to evaluate th
pochemuha

Answer:

Polynomial expression that represents the area of blanket:

A(x)=(6x^2+5x-21)cm^2

If x=2: A(2)=13cm^2  

Step-by-step explanation:

The area of the rectangle can be calculated with the formula:

A=lw

Being l the lenght of the rectangle and w the width of the rectangle.

In this case, the lenght and the width are represented with:

l=(3x+7)cm

w=(2x-3)cm

Substitute them into  A=lw:

 A(x)=(3x+7)(2x-3)

Then:

Use Distributive property (Remember the Product of powers property: b^a*b^c=b^{(a+c)} ):

A(x)=(3x+7)(2x-3)\\A(x)=6x^2-9x+14x-21

Add like terms:

A(x)=(6x^2+5x-21)cm^2 (Simplied form)

Evaluate x=2:

A(2)=(6(2)^2+5(2)-21)cm^2\\A(2)=(6(4)+10-21)cm^2\\A(2)=(24-11)cm^2\\A(2)=13cm^2

6 0
4 years ago
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