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3 years ago

Can you help me i have a 70 in math and the last grading period is coming in 2 more days

Mathematics

1 answer:

NikAS [45]3 years ago

4 0

Number four is twenty inches

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Someone good with trigonometry please help

serg [7]

Tan(52°) = opposite/adjacent = x/35 ⇒

x = 35 * tan(52°) = 35 * 1.2799 ≈ 44.80

3 0

3 years ago

The owner of a small pet supply store wants to open a second store in another city, but he only wants to do so if more than one-

Andrei [34K]

Answer:

The answer is "The null hypothesis was rejected".

Step-by-step explanation:

Following are the right-tailed test:

Calculating the null and alternative hypothesis:

$H_0 : p = 0.3333\\\\H_a : p > 0.3333\\\\n = 150\\\\x = 64\\\\\hat{p} = \frac{x}{n} = \frac{64}{150} = 0.4267\\\\P_0 = 0.3333\\\\1 - P_0 = 1 - 0.3333 = 0.6667\\\\$

$z = \frac{\hat{p} - P_0}{[\sqrt{\frac{P_0 \times (1 - P_0 )}{n}}]}$

$= \frac{0.4267 - 0.3333}{[\sqrt{\frac{(0.3333 \times 0.6667)}{150}}]}\\\\= 2.426$

Calculating the right-tailed test:

$P(z > 2.426) = 1 - P(z < 2.426) = 1 - 0.9924 = 0.0076\\\\P-value = 0.0076\\\\\alpha = 0.05\\\\P-value < \alpha$

Therefore, we reject the null hypothesis.

This example shows that more than a third of the families own pets in this town.

5 0

2 years ago

Explain how you know that √10 is between 3 and 4? what would your estimate of √10 be??

raketka [301]

Answer:

Step-by-step explanation:

Welllllll.....

If you take the square root of 9, it's 3

if you take the square root if 16, it's 4

I would guess it to be about 3.2

4 0

3 years ago

Read 2 more answers

1/4 + 1/2 + x = -3/4

Sati [7]

Hi MonkeyJohnny123,

Solution:

= 1/4 + 1/2 + x = -3/4

= 1/4 + 2/4 + x = -3/4

= 3/4 + x = -3/4

= 3/4 + -6/4 = -3/4

Answer:

-6/4

8 0

3 years ago

Read 2 more answers

How can i solve this

lana66690 [7]

X+3-2x+5=10
+2x +2x
3x+ 3 + 5 = 10
-3 -3
3x + 5 = 7
-5 -5
3x=2
x=1.5
I hope all is well, and I helped! (: Good luck, rockstar!

8 0

3 years ago