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2 years ago

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write an algebraic expression for the following problem next weekend a student wants to study for his four classes if he has h h

ours to study in all and he wants to devote the same amount of time to each same amount of time to each class how much time will he study per class?

1 answer:

asambeis [7]2 years ago

4 0

The equation can be c=4h

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julsineya [31]

First, you find the area of the figure. Use the formula a=h(b/2)

a=h(b/2)
a=47(98/2)
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Now, you multiply that by $42.50 to find out how much he will pay.

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Marizza181 [45]

Answer:

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Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

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And on this case we have that $ME =\pm 0.04$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

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olasank [31]

Are you gonna attach a photo!

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2 years ago

How to multiply and divide rational numbers?

lutik1710 [3]

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san4es73 [151]

Answer:

y = -2x + 9

Step-by-step explanation:

y = -2x + 7

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