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Gnom [1K]
3 years ago
15

A political candidate has asked you to conduct a poll to determine what percentage of people support her.

Mathematics
1 answer:
Sergio039 [100]3 years ago
5 0

Answer:

666

Step-by-step explanation:

From this question,

a = 1-99%

a = 1-0.99

a = 0.01

5% = z(0.05) = 2.58 when we check the standard normal table

Therefore we calculate n as:

n = (z/E)²*p*1-p

Z = 2.58

E = 0.05

P = 0.5

1-p = 0.5

(2.58/0.05)²x0.5x0.5

= 51.6²x0.5x0.5

= 665.64

Therefore n is approximately 666.

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A planter shaped like a rectangular prism has a length of 4 meters, a width of 4 meters, and a height of 3 meters. Attached to t
Blababa [14]

Answer:

Planter 1 is 48 meters cubed

Planter 2 is 24 meters cubed

Total volume = 72

Step-by-step explanation:

The formula for the volume of a rectangular prism is length times width times height. So, 4*4*3. This equals 48. If the other planter is half the volume, divide 48 by 2 to get 24 meters cubed. To find the total area add both results to get a total of 72 meters cubed.

3 0
3 years ago
2) Find the angle measures of a triangle if the first angle is thirty-one degrees more than
Charra [1.4K]

Answer:

4x+88=180

First angle is 54°

Second angle is 23°

Third angle is 103°

Step-by-step explanation:

Let x be the second angle. First angle is 31+x. Third angle is 2*(31+x)-5 = 62+2x-5 = 2x+57

All angles in a triangle add upto 180°

31+x+x+2x+57 = 180

4x+88=180

Subtract 88 from both sides,

4x = 92

Divide by 4,

x = 23°

31+x = 54°

2x+57 = 2*23 + 57 = 46+57 = 103°

4 0
3 years ago
Geoff and Trevor each roll a fair six-sided die. What is the probability that the product of the numbers they roll is even?
Nataly [62]
The Chances are 1/2
Hope this helps :D
5 0
3 years ago
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Alejandro has 128 ounces of dog food.He feeds his dog 8 ounces each day.How many days will the dog food last
AnnyKZ [126]
16 days

Divide 128oz(starting point) by 8(how many you feed everyday)


An equation would look something like this:

x = 128/8

3 0
4 years ago
Read 2 more answers
HELP PLS!!! AWARDING BRAINLIEST FOR CORRECT ANSWER!
Katarina [22]

Answer:

37

Step-by-step explanation:

Good Luck! I double checked my answer!

6 0
3 years ago
Read 2 more answers
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