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2 years ago

Which values of a, b, and c represent the answer in simplest form? 7/9 / 4/9

Mathematics

2 answers:

satela [25.4K]2 years ago

8 0

1 3/4 the answer is

alina1380 [7]2 years ago

4 0

I got 1 1/4 hope that helps if u need me to tell u how I’ll show u

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I need help please?!!!!

klasskru [66]

Answer:

Step-by-step explanation:

(3^5)^2 = 3^10

(8^2)^5 = 8^10

therefore

(3/8)^10

7 0

3 years ago

Read 2 more answers

4h+7=4h-3 i think i have it but im not sure 100% so i need hlp

SSSSS [86.1K]

<u>4h + 7 = 4h - 3</u>

Subtract 4h from each side: 7 = -3

There is no value of ' h ' that can make this a true statement,
so the equation has no solution.

5 0

3 years ago

Read 2 more answers

The amount of lateral expansion (mils) was determined for a sample of n = 8 pulsed-power gas metal arc welds used in LNG ship co

Alona [7]

Answer:

95% Confidence interval for the variance:

$3.6511\leq \sigma^2\leq 34.5972$

95% Confidence interval for the standard deviation:

$1.9108\leq \sigma \leq 5.8819$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the standard deviation σ and the variance σ².

The sample, of size n=8, has a standard deviation of s=2.89 miles.

Then, the variance of the sample is

$s^2=2.89^2=8.3521$

The confidence interval for the variance is:

$\dfrac{ (n - 1) s^2}{ \chi_{\alpha/2}^2} \leq \sigma^2 \leq \dfrac{ (n - 1) s^2}{\chi_{1-\alpha/2}^2}$

The critical values for the Chi-square distribution for a 95% confidence (α=0.05) interval are:

$\chi_{0.025}=1.6899\\\\\chi_{0.975}=16.0128$

Then, the confidence interval can be calculated as:

$\dfrac{ (8 - 1) 8.3521}{ 16.0128} \leq \sigma^2 \leq \dfrac{ (8 - 1) 8.3521}{1.6899}\\\\\\3.6511\leq \sigma^2\leq 34.5972$

If we calculate the square root for each bound we will have the confidence interval for the standard deviation:

$\sqrt{3.6511}\leq \sigma\leq \sqrt{34.5972}\\\\\\1.9108\leq \sigma \leq 5.8819$

6 0

2 years ago

Help! Signs of expression What is the sign of a . b?

Kazeer [188]

Answer:

6-positive

4-positive

2-positive

0-zero

-2-negative

-6-negative

8-positive

Step-by-step explanation:

5 0

2 years ago

What pet makes the loudest noise algebra 2

aleksandrvk [35]

A trum-pet ;) almost got me there

4 0

2 years ago