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3 years ago

Are 12/20 and 22/30 equivalent fractions? Why or why not?

Mathematics

1 answer:

jek_recluse [69]3 years ago

8 0

Yes! It is equivalent because you are pretty much multiplying 12/20 by 10 which equals 22/30.

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How do I solve 3x+17 greater than or equal to (you can’t do the sign on a phone but it would be _>) 5

Kobotan [32]

<h3><u>The value of x is greater than or equal to -4.</u></h3>

(3x + 17) ≥ 5

Subtract 17 from both sides.

3x ≥ -12

Divide both sides by 3.

x ≥ -4

5 0

3 years ago

Help pls also can you explain how to do this if not it’s okay

salantis [7]

Use proportions , it helps

8 0

3 years ago

II. Let f(x) = 9 – x , g(x) = x2<br> + 4, and h(x) = x – 2. Compute the following:<br> 7. g(f(12))

Alex17521 [72]

G(f(12))
f(12) = 9 - 12 = -3
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4 0

3 years ago

Circular flower bed is 17 m in diameter and has a circular Samick around it is that to meters wide find the area of the sidewalk

NARA [144]

Answer:

26.69 square meters

Step-by-step explanation:

A=r(3.14)

A= 8.5(3.14)

A=26.69 meters

3 0

3 years ago

The Paralyzed Veterans of America is a philanthropic organization that relies on contributions. They send free mailing labels an

lions [1.4K]

Answer:

Confidence interval: (0.04649,0.04913)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 100,000

Number of people who donated, x = 4781

$\hat{p} = \dfrac{x}{n} = \dfrac{4781}{100000} = 0.04781
$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting the values, we get:

$0.04781
\pm 1.96(\sqrt{\dfrac{0.04781
(1-0.04781
)}{100000}})\\\\=0.04781
\pm 0.00132\\\\=(0.04649,0.04913)$

is the required 95% confidence interval for the true proportion of their entire mailing list who may donate.

3 0

3 years ago