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3 years ago

FREEEEEEE POINTZZZZ MATH WORDS FOR WORD COUNT: ADD SUBTRACT EQUATION

Mathematics

1 answer:

il63 [147K]3 years ago

8 0

Answer:

Ayeeeeeeeeeeeeee

Step-by-step explanation:

Thanks a lot! Have a good day!

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-3p + 8 = -13 <br><br> HELLLLPP

ella [17]

Answer:

p=-7 :)

Step-by-step explanation:

-13-8=3p

-13+(-8)=3p

-21=3p

÷3

-7=p

5 0

3 years ago

A study found that out of 300 people 60% of them prefer to eat hamburgers rather than hot dogs. Find the 95% confidence interval

Lerok [7]

Answer:

(0.5446, 0.6554)

Step-by-step explanation:

As the sample is sufficiently large, the formula is used to estimate the proportion shown in the attached image.

Where:

P: sample proportion = 0.6

n: Sample size = 300

$1-\alpha$ : Confidence level = 0.95

α: Significance = 0.05

$Z_{\alpha / 2} = 1.96$ *

* Obtained from the normal standard table.

When introducing these values in the formula shown in the image we obtain:

$0.6 + 1.96 *\sqrt {\frac{0.6*0.4}{300}}$

$0.6 - 1.96 *\sqrt{\frac{0.6*0.4}{300}}$

Finally, the confidence interval is:

(0.5446, 0.6554)

8 0

3 years ago

A line contains the points (3,1) and (-6,4). What is the equation for this line in slope-intercept form?

Alex73 [517]

Answer:

y = (-1/3)x + 2

Step-by-step explanation:

Equation of line in slope-intercept form is given by

y = mx +c

where m is the slope of line

c is y intercept

Slope of line having points (x1, y1) and (x2,y2) is given by (y2-y1)/(x2-x1)

_________________________________________________

let the equation of required line be y = mx +c

Since points given are (3,1) and (-6,4)

Then, its slope is

m = 4-1/-6-3 = 3/-9 = -1/3

Thus, slope of line is m = -1/3

lets use m = -1/3 in place of m in equation y = mx +c

y = (-1/3)x + c

Since points (3,1) and (-6,4) lie on y = (-1/3)x + c , it should satisfy the this equation.

hence lets plug 3 in place of x and 1 in place of y

1 = (-1/3)3 + c

=> 1 = -1 + c

=> c = 1 +1 = 2

Thus, intercept is 2.

Thus, Equation of line in slope-intercept form is y = (-1/3)x + 2.

5 0

3 years ago

When was 2011 gone to 2021 what is the difference in years?

enot [183]

Answer:

10 is the difference

4 0

3 years ago

Read 2 more answers

Please helppppp!!!!!!!!

OleMash [197]

Answer: I think it's B

Step-by-step explanation: You can use the answer if you want.

5 0

3 years ago