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3 years ago

Can can y'all help me on this I'll give you a brainlist

Mathematics

2 answers:

GaryK [48]3 years ago

4 0

Answer:

4-4 = 0

3 - 3 = 0

Step-by-step explanation:

wanna play prodigy? (My name is Aalyiah Dreamshade (cant spell xD)

igomit [66]3 years ago

4 0

The answer is 3

4-4=3-3

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Hello can you help me the question is:write two equivalent fractions?

MakcuM [25]

Answer:

Step-by-step explanation:

1)8/12=12/18

2)12/20=18/30

3)4/16=6/24

6 0

3 years ago

What is the answer to this question?

forsale [732]

Answer:

c = 83

b = 79

a = 101

d = 97

.........................

5 0

2 years ago

"A cable TV company wants to estimate the percentage of cable boxes in use during an evening hour. An approximation is 20 percen

Marizza181 [45]

Answer:

The company should take a sample of 148 boxes.

Step-by-step explanation:

Hello!

The cable TV company whats to know what sample size to take to estimate the proportion/percentage of cable boxes in use during an evening hour.

They estimated a "pilot" proportion of p'=0.20

And using a 90% confidence level the CI should have a margin of error of 2% (0.02).

The CI for the population proportion is made using an approximation of the standard normal distribution, and its structure is "point estimation" ± "margin of error"

[p' ± $Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$ ]

Where

p' is the sample proportion/point estimator of the population proportion

$Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$ is the margin of error (d) of the confidence interval.

$Z_{1-\alpha /2} = Z_{1-0.05} = Z_{0.95}= 1.648$

$d= Z_{1-\alpha /2} * \sqrt{\frac{p'(1-p')}{n} }$

$d *Z_{1-\alpha /2}= \sqrt{\frac{p'(1-p')}{n} }$

$(d*Z_{1-\alpha /2})^2= \frac{p'(1-p')}{n}$

$n*(d*Z_{1-\alpha /2})^2= p'(1-p')$

$n= \frac{p'(1-p')}{(d*Z_{1-\alpha /2})^2}$

$n= \frac{0.2(1-0.2)}{(0.02*1.648)^2}$

n= 147.28 ≅ 148 boxes.

I hope it helps!

3 0

3 years ago

Solve the proportion using equivalent ratios. Explain the steps you used to solve the proportion, and include the answer in your

rodikova [14]

Answer: Your answer is X=6

Step-by-step explanation:

10/3 = 20/x

Determine the defined range

10/3 20/x, x=0

Cross-multiply

10x = 60

Divide both sides by 10

x=6,x=0

Check if the solution is in the defined range

SOLUTION x=6

I HOPE THIS HELPS IF NOT THE SORRY

4 0

3 years ago

Pls help need help ASAP 50 points you will be reported if the answer is wrong

aev [14]

Answer:

Part A = 10in = 35 ft

= 20 = 70 ft

Part B =

$ 178.5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers