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AlekseyPX
3 years ago
5

Can I have some help I don't really understand this question.

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0

Answer:

40 square units

Step-by-step explanation:

This is a rhombus, so you multiply the two diagonals and divide by 2.

8x10÷2=40

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What must be a factor of the polynomial function f(x) graphed on the coordinate plane below?
Mamont248 [21]

Answer: D.

Step-by-step explanation:

X+6

8 0
3 years ago
Whats longer 3 hours or 175 minutes
avanturin [10]
3 hours is longer than 175 minutes. An hour is 60 minutes long, so just multiply that by 3 and compare your answer to 175.

60 x 3 = 180
180 > 175

Therefore, 3 hours is longer than 175 minutes.

Hope this helps!
6 0
3 years ago
Read 2 more answers
7) You can buy 5 cans for green beans at the Village Market for $3.20. You can buy 10
Bad White [126]
Sam’s club because with the deal each can would be about $1.27 whereas at village market each can would be about $1.56
5 0
3 years ago
A recent study examined hearing loss data for 1981 U.S. teenagers. In this sample, 369 were found to have some level of hearing
ruslelena [56]

Answer:

There is no enough evidence to support the claim that the proportion of US teens that have some level of hearing loss differs from 20%.

P-value=0.12

Step-by-step explanation:

We have to perform a test of hypothesis on the proportion.

The claim is that the proportion of US teens that have some level of hearing loss differs from 20%.

Then, the null and alternative hypothesis are:

H_0: \pi=0.20\\\\H_a:\pi\neq0.20

The significance level is assumed to be 0.05.

The sample, of size n=1981, has 369 positive cases. Then, the proportion is:

p=X/n=369/1981=0.186

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.2*0.8}{1981}}=\sqrt{ 0.000081 }= 0.009

Now, we can calculate the statistic z:

z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.186-0.20+0.5/1981}{0.009}=\dfrac{-0.014}{0.009}=-1.556

The P-value for this two-tailed test is:

P-value=2*P(z

The P-value is below the significance level, so the effect is not significant. The null hypothesis failed to be rejected.

There is no enough evidence to support the claim that the proportion of US teens that have some level of hearing loss differs from 20%.

7 0
3 years ago
Please help me quick !! <br> Will mark whoever is first brainliest.
kvv77 [185]

Answer: C. y = 4x - 1

Step-by-step explanation:

pls mark brainiest!!

5 0
2 years ago
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