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2 years ago

I need help with any of these thank you

Mathematics

2 answers:

otez555 [7]2 years ago

4 0

Answer:

the answer for 12 is 2.1

13 is 4/13

14 is 95/11 or 8 7/11

svetoff [14.1K]2 years ago

4 0

Answer:

12. 2.3

13. 4/11

14. 8 7/11

15. 0.7777...

16. 22/7 is a repeating decimal. 22/7 is 3 1/7. 1/7 repeats forever.

Step-by-step explanation:

12, 13, and 14: absolute value of anything is positive.

15. 2700 total snakes, 600 poisonous, 2700 - 600 = 2100, 2100 is the nonpoisonous snakes. 2100/2700 = 0.7777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777...

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The 2010 General Social Survey reported a sample where about 48% of US residents thought marijuana should be made legal. If we w

Sati [7]

Answer:

The sample size is $n = 600$

Step-by-step explanation:

From the question we are told that

The sample proportion is $\r p = 0.48$

The margin of error is $MOE = 0.04$

Given that the confidence level is 95% the level of significance is mathematically represented as

$\alpha = 100 - 95$

$\alpha = 5 \%$

$\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table , the values is

$Z_{\frac{\alpha }{2} } = 1.96$

The reason we are obtaining critical value of $\frac{\alpha }{2}$ instead of $\alpha$ is because

$\alpha$ represents the area under the normal curve where the confidence level interval ( $1-\alpha$ ) did not cover which include both the left and right tail while

$\frac{\alpha }{2}$ is just the area of one tail which what we required to calculate the margin of error

Generally the margin of error is mathematically represented as

$MOE = Z_{\frac{\alpha }{2} } * \sqrt{ \frac{\r p(1- \r p )}{n} }$

substituting values

$0.04= 1.96* \sqrt{ \frac{0.48(1- 0.48 )}{n} }$

$0.02041 = \sqrt{ \frac{0.48(52 )}{n} }$

$0.02041 = \sqrt{ \frac{ 0.2496}{n} }$

$0.02041^2 = \frac{ 0.2496}{n}$

$0.0004166 = \frac{ 0.2496}{n}$

=> $n = 600$

5 0

3 years ago

1. The producer of the news station posted an article about the high school’s football championship ceremony on a new website. T

Alex

Answer:

hours / views

1. / 125

2. / 250

3. / 375

4. / 500

5. / 625

f(x)= 125 x views=125.hours

The slope of the function equals the visits of each hour.

3. (1;125) (2;250) (3;375) (4;500) (5;625)

4. "views as a function of hours"

5. in 12 hours the website will have f(12)=125 . 12 = 1500 views.

we can see in the plot that the line gets to that number for 8

4 0

3 years ago

Consider this cube with a volume of 64 cubic centimeters. A cube with volume 64 centimeters cubed. What can be concluded of this

BabaBlast [244]

Answer: B) this is a perfect cube. D )the side length is 4. E)taking the cube root of the volume will determine the side length.

Step-by-step explanaion: just guessed and it told me it was right on edunuity 2020.

HOPE I HELPED PLZ GIVE BRAINLIEST:)

3 0

3 years ago

Read 2 more answers

Evaluate: [5(2-6)+3(8÷4)^2]^2

ludmilkaskok [199]

The answer you're looking for will be,

ANSWER: 64.

Steps:
To get this answer, follow the PEMDAS order of operations.

PEMDAS: Parenthesis, Exponents, Multiply, Divide, Add, Subtract.
(IN ORDER IF POSSIBLE)

I hoped this helped, you're welcome :)

4 0

3 years ago

Read 2 more answers

a new statue with a circular base is being unveiled in a downtown park. the statue base has a radius of 8 feet. round your answe

fiasKO [112]

I believe you are asking for the area of the statue base.

r^2x3.14 = area of a circle

8 x 8 = 64

64 x 3.14 = 200.96
200.96 rounded = 201

The area of the statue base is 201 square feet.

5 0

2 years ago