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3 years ago

I NEED HELP ASAP!!! Two angles are supplementary. The measure of one angle is 6 less than 20% of the other. find both angles.

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

Answer:

Step-by-step explanation:

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PLEASE HELP ME!!!!!!!Which equation can be used to find the volume of this solid?

sergey [27]

Answer:

it would be v=7x6/2 x8 so the last one

Step-by-step explanation:

4 0

3 years ago

Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (in miles per gallon

Leviafan [203]

Answer: 0.82 miles per gallon

Step-by-step explanation:

Given : Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (x) (in miles per gallon) of her car.

The results are :45 44 43 44 45 44 43

The formula to find the standard deviation is given by :-

$\sigma=\sqrt{\dfrac{\sum_{i=1}^n(x_i-\overline{x})^2}{n-1}}$

First we find mean of the given data ,

$\overline{x}=\dfrac{\sum^n_{i=1}x_i}{n}\\\\=\dfrac{45+44+43+44+45+44+43}{7}=\dfrac{308}{7}=44$

Now,

${\sum_{i=1}^n(x_i-\overline{x})^2=(1)^2+(0)^2+(-1)^2+(0)^2+(1)^2+(0)^2+(-1)^2$

$=1+1+1+1=4$

Now, standard deviation of the above results will be :-

$\sigma=\sqrt{\dfrac{4}{7-1}}\\\\=\sqrt{\dfrac{4}{6}}\\\\=\dfrac{2}{\sqrt{3}}=0.816496580928\approx0.82$

Hence, the standard deviation of these results = 0.82 miles per gallon

8 0

4 years ago

Monica and ryan shared 18 cookies. monica ate1/6 of the cookies . ryan ate 1/3 of the cookies . how many cookies were left

Goryan [66]

Monica are 3 cookies.Ryan are 6 cookies.So the remaining no. of cookies is 18-9=9 cookies

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3 years ago

Which function has a greater rate of change

kati45 [8]

Answer:

A has a rate of change of -5 and is greater than Bs -4.5

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3 years ago

See the picture please!!

jeka57 [31]

Answer:

the first one its true

y of A greater than the y of B

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3 years ago