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2 years ago

The given exponential function f(x)= (.67)* - 7 represents:

1 answer:

4 0

A

Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out

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Really need help asap!!

sp2606 [1]

The answer is 799 ur welcome

8 0

2 years ago

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Please Help its my birthday !!!

Naddik [55]

Answer:none

Step-by-step explanation:

Because they are all straight angle line

Y=2x —> positive line

Y=2-x —> negative line

Y=x2-2 —> positive line

Y=-2x —> negative line

You can also check this at desmos

8 0

2 years ago

A professor records the difference between the marks scored by the students in the class test last week and those scored in the

dezoksy [38]

Answer: $(10.82\ , 13.18)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\mu\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 35 , large sample (n>30)

Mean difference : $\overline{x}=12$

Standard deviation : $\sigma=3$

Significance level : $\alpha=- 1-0.999=0.001$

Critical value : $z_{\alpha/2}=z_{0.0005}=3.4807567$

Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

$12\pm\ (3.4807567)\dfrac{2}{\sqrt{35}}\\\\=12\pm1.18\\\\=(10.82\ , 13.18)$

Hence, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = $(10.82\ , 13.18)$

4 0

3 years ago

(9x2 - 8x + 4) - (4x2 + 3x - 9) A. 13x2 - 11x + 5 B. 13x2 - 11x + 13 C. 5x2 - 5x + 13 D. 5x2 - 11x + 13

Troyanec [42]

The answer is d) 5x2-11x+13

4 0

3 years ago

LAST ONE I SWEAR BUT STILL WILL MARK BRAINLIEST

Svetlanka [38]

Actually I think it may be C

6 0

3 years ago

Read 2 more answers