All categories

3 years ago

I NEED HELP PLEASE!!

Mathematics

2 answers:

RUDIKE [14]3 years ago

5 0

Answer:

D, -79, plz brainliestt

Step-by-step explanation:

-8(2) -3 = -16-3= -19

-19(4) -3 = -76-3 = -79

TEA [102]3 years ago

5 0

D, -79 plzzz BRAINLIEST

-8 (2) -3 = -16 - 3 = -19

-19 (4) -3 = -76 - 3 = -79

Hope this helps :)

You might be interested in

True or false by definition a simple random sample of size n

Sophie [7]

True

I hope I helped you out

7 0

3 years ago

Simplify by combining like terms <br> 7x + 3 (2x-6) - 10 - 7x

ruslelena [56]

6x-28 is what I got for this

3 0

3 years ago

Read 2 more answers

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82,

ozzi

Answer:

Population variance 579

Population standard deviation 24

Step-by-step explanation:

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82, 78, 80, 91, 107, 121, 125, 131, and 142.

The population variance is given by:

$\sigma^2=\frac{\sum(x-\mu)^2}{n}$

$\mu=\frac{71+80+82+78+80+91+107+121+125+131+142}{11}$

$\mu=\frac{1108}{11}$

This implies that:

$\sigma^2=\frac{(71-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+(82-\frac{1108}{11})^2+(78-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+...+(142-\frac{1108}{11})^2}{11}$

$\sigma^2=\frac{70006}{121} =579$ to the nearest whole number

The population standard deviation is

$\sigma=\frac{\sqrt{70006} }{11}=24$ to the nearest whole number.

3 0

3 years ago

Read 2 more answers

1/3y+11=1/2y-3<br><br> What is y???

olga55 [171]

Answer:

$y=84$

Step-by-step explanation:

$\left(\frac{1}{3}\right)y+11=\left(\frac{1}{2}\right)y-3$

Use distributive property.

$\frac{1}{3}y+11=\frac{1}{2}y-3$

$\frac{1}{3}y+11-11=\frac{1}{2}y-3-11$

$\frac{1}{3}y=\frac{1}{2}y-14$

$\frac{1}{3}y-\frac{1}{2}y=\frac{1}{2}y-14-\frac{1}{2}y$

$-\frac{1}{6}y=-14$

$\left(-\frac{1}{6}y\right)\left(-6\right)=\left(-14\right)\left(-6\right)$

$y=84$

6 0

3 years ago

Read 2 more answers

HELP PLEASE!

arsen [322]

Answer:a two-step equation is an algebraic equation you can solve in two steps. ... It's always a good idea to check our solution in the original equation to make sure you didn't make any mistakes:

Step-by-step explanation:

7 0

3 years ago