4 years ago

NEED THIS QUESTION FAST DONT NEED EXPLANATION ONLY TGE ANSWER AND ILL GIVE 81 points

Mathematics

1 answer:

IgorLugansk [536]4 years ago

6 0

2x-5y =-5

14x+5y=-5

---------------

16x = -10

x = -10/16

x = -.626

2x-5y = -5

2(-.625) -5y = -5

-1.25 - 5y = -5

-5y = -3.75

y = .75

Choice A is approximately -.6 and .8 the others are not going to be close

You might be interested in

Someone please help me will give BRAILIEST?!!!

Tresset [83]

Its 6f hope this helps :P

5 0

4 years ago

Read 2 more answers

Please help quick quick

shusha [124]

Answer:

25x + 15

Step-by-step explanation:

5(5x+3)

5x5=25

5x3=15

25+15

3 0

2 years ago

Read 2 more answers

A laboratory tested 85 chicken eggs and found that the mean amount of cholesterol was 190 milligrams. Assume that the sample sta

Serjik [45]

Answer: $(182.356,\ 197.644)$

Step-by-step explanation:

Given : Significance level : $\alpha:1-0.95=0.05$

Sample size : n=85

Critical value : $z_{\alpha/2}=1.96$

Sample mean : $\overline{x}=190$

Standard deviation : $\sigma=11.7$

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=190\pm(1.96)\dfrac{11.7}{\sqrt{9}}\\\\=190\pm7.644\\\\=(190-7.644,\ 190+7.644)=(182.356,\ 197.644)$

Thus, the 95% confidence interval for the true mean cholesterol content, μ, of all such eggs = $(182.356,\ 197.644)$

Hence, we conclude that the true population mean of amount of cholesterol lies between 182.356 and 197.644.

5 0

3 years ago

Answer this and I will make your day better just watch!!!!

Karo-lina-s [1.5K]

Answer: :) hi! <3

Step-by-step explanation:

6 0

3 years ago

12.12.12.12 +7(3.3.3.3+3)<br> What the answer

Black_prince [1.1K]

Answer:

23.253528

Your welcome

4 0

3 years ago