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3 years ago

BRAINLIESTTT ASAP!! PLEASE HELP ME ASAP! :) Explain your steps and show your work.

Mathematics

1 answer:

levacccp [35]3 years ago

7 0

Answer:

$\sqrt{x}$

Step-by-step explanation:

$\dfrac{1}{x^\frac{-3}{6}} =$

Reduce the exponent of x.

$= \dfrac{1}{x^\frac{-1}{2}}$

Use the negative exponent rule: $a^{-n} = \dfrac{1}{a^n}$

$= x^\frac{1}{2}$

Use the rational exponent rule: $a^\frac{m}{n} = \sqrt[n]{a^m}$

$= \sqrt{x}$

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SOMEONE EASE ANSWER NUMBER 4?

nlexa [21]

On analyzing the question we can say that the angle ∠JKM of the triangle ΔJKL would be 42 as line MK bisects ∠JKL into ∠JKM & ∠MKL.

From the question it follows that line MK bisects angle ∠JKL into ∠JKM & ∠MKL where M is the point in the interior of ∠JKL.

Therefore, as we have given m∠JKL = 84 & m∠MKL = 42

and we have to find m∠JKM , we will simply write the equation as follow

m∠JKL = m∠JKM + m∠MKL

Inserting values we get,

84 = m∠JKM + 42

m∠JKM = 42

Hence, angle m∠JKM of the triangle ΔJKL is 42.

Learn more about questions related to triangles and their angles here

brainly.com/question/13273388

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2 years ago

What bag is heavier 2 kilograms or 3000grams

pav-90 [236]

3000 grams because 2 kilograms is 2000 grams and 3000 is greater than 2000

3 0

3 years ago

Read 2 more answers

X + 8y = 18 and — 5x + 3y = -4

atroni [7]

X+8y=18
-5x+3y=-4

Multiply the first equation by 5
Add the two equations together

5x+40y=90
-5x+3y=-4
43y=86
Y=2

Plug y into one equation to find x
X+16=18
X=2

5 0

3 years ago

Read 2 more answers

Giving away POINTS Tell me your favorite color!

Aleksandr-060686 [28]

Answer:

mint green

Step-by-step explanation:

brainliest?

3 0

2 years ago

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The CEO of a large electric utility claims that more than 75 percent of his customers are very satisfied with the service they r

vichka [17]

Answer:

$z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462$

Now we can find the p value using the alternative hypothesis with this probability:

$p_v =P(z>0.462)=0.322$

Since the p value is large enough, we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

Step-by-step explanation:

Information provided

n=100 represent the random sample selected

$\hat p=0.77$ estimated proportion of students that are satisfied

is the value that we want to test

z would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to verify if more than 75 percent of his customers are very satisfied with the service they receive, then the system of hypothesis is.:

Null hypothesis: $p\leq 0.75$

Alternative hypothesis: $p > 0.75$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info given we got:

$z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462$

Now we can find the p value using the alternative hypothesis with this probability:

$p_v =P(z>0.462)=0.322$

Since the p value is large enough we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

4 0

3 years ago