3 years ago

86% Work out the size of angle x. 304° 1159

Mathematics

1 answer:

morpeh [17]3 years ago

8 0

This problem is incomplete.

You might be interested in

Identify the general solution for x in this equation.<br><br> 4 - ax = 2

VLD [36.1K]

Answer:

x = $\frac{2}{a}$

Step-by-step explanation:

given

4 - ax = 2 ( isolate the term in x by subtracting 4 from both sides )

- ax = 2 - 4 = - 2 ( divide both sides by - a )

x = $\frac{-2}{-a}$ = $\frac{2}{a}$

6 0

3 years ago

Read 2 more answers

The table shows the results for spinning the spinner 75 times what is the related frequency for the event spin a 2

arsen [322]

Answer:

8/25 it the answer

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Write two equivalent fractions for 1/4

lakkis [162]

Correct Answer:

2/8 or 4/16

4 0

3 years ago

Read 2 more answers

What is the inverse of y=2x+5/2

muminat

Answer:

y=-2x-2.5

Step-by-step explanation:

The inverse of a number is the negative number.

8 0

3 years ago

Exercise 6.12 presents the results of a poll where 48% of 331 Americans who decide to not go to college do so because they canno

tensa zangetsu [6.8K]

<h2>Answer with explanation:</h2>

As per given , we have

$\hat{p}=0.48$ , n=331

Critical value for 90% Confidence interval : $z_{\alpha/2}=1.645$

a) Confidence interval :

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$0.48\pm (1.645)\sqrt{\dfrac{0.48(1-0.48)}{331}}\\\\\approx 0.48\pm0.02746\\\\=(0.48-0.02746,\ 0.48+0.02746)\\\\=(0.45254,\ 0.50746)$

Hence, a 90% confidence interval for the proportion of Americans who decide to not go to college because they cannot a ord it : $(0.45254,\ 0.50746)$

b) Margin of error : E=1.5%=0.015

Formula for sample size : $n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

For p =0.48 , we have

$n=0.48(1-0.48)(\dfrac{1.645}{0.015})^2=3001.88373333\approx3002$

Hence, the required sample size to survey = 3002

6 0

3 years ago