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3 years ago

I am struggling on how to rationalize the denominators and simplify the problem.

Mathematics

2 answers:

dsp733 years ago

7 0

A negative power is not allowed, so you must flip the fractions and remove the negative sign on the powers. Then you would most likely put those numerators to their powers and simplify.

Furkat [3]3 years ago

4 0

Hi yea you need help

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Sydney is cutting the crust from the edges of her sandwich. The dimensions, in centimeters, of the sandwich is shown.

UNO [17]

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3 years ago

Read 2 more answers

What is the value of X?

joja [24]

Answer:

27 is ta value of x because.. first of all add allthose threee sides

3(x+2)+ 35+ 52=180(the sum of triangle)

or, 3x+6+35+52=180

or,3x=180-93

or,x=87/3

Therefore, the value of x is 29

Step-by-step explanation:

mark me as main brainliest please

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2 years ago

Right triangle LMN has vertices L(7, –3), M(7, –8), and

ololo11 [35]

This is the translation.
M' is (-1,3)
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3 years ago

In a sample of 388 people in a certain, 22% had red hair. Find a 99% confidence interval for the proportion of people in the cou

Anit [1.1K]

Answer: (0.1658, 0.2742)

Step-by-step explanation:

Formula to find the confidence interval for population proportion is given by :-

$\hat{p}\pm z^*\sqrrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where n= sample size

z*= Critical value

$\hat{p}$ = sample proportion.

As per given , we have

Significance level : $\alpha=1-0.99=0.01$

According to z-table, Critical value for 99% confidence interval : z*=2.576

Let p be the proportion of people in the country that have red hair.

n= 388

$\hat{p}=0.22$

Now, required confidence interval for proportion of people in the country that have red hair will be :-

$0.22\pm (2.576)\sqrt{\dfrac{0.22(1-0.22)}{388}}$

$0.22\pm (2.576)\sqrt{0.000442268}$

$0.22\pm (2.576)(0.02103)$

$(0.22-0.05417328,\ 0.22+0.05417328 )=(0.16582672,\ 0.27417328)\\\\\approx(0.1658,\ 0.2742)$

The 99% confidence interval for the proportion of people in the country that have red hair= (0.1658, 0.2742)

8 0

3 years ago

Help pls 15 points!!

Minchanka [31]

Answer:

i think its num 4

Step-by-step explanation:

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3 years ago