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2 years ago

(r + 14x + 55x + 48) \(x + 6)

Mathematics

1 answer:

balu736 [363]2 years ago

3 0

Answer:

r + 69x + 48 / x + 6

Step-by-step explanation:

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Solve for x and round your answer to the nearest tenth.

Yuliya22 [10]

Answer:

I believe it should be 32.9

Step-by-step explanation:

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2 years ago

Helppppp please can someone please answer this

oksian1 [2.3K]

20 and 24 are the answers

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2 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

2 years ago

What is surface area? any of the individual surfaces of a solid object a pattern of two-dimensional shapes that can be folded to

spin [16.1K]

Answer:

Any of the individual surfaces of a solid object pattern of three dimensional shapes.

Step-by-step explanation:

Surface area of a solid object is the measure of the total area of the surface of three dimensional objects. Example a sphere and a cube is a three dimensional objects.

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2 years ago

Read 2 more answers

the sum of two numbers is 44. the smaller number is five-sixths of the larger number. what are the numbers?

Sindrei [870]

X+y=44
x=5/6y

x+y=44
5/6y+y=44
11/6y=44
11y=264
y=24
x=5/6y=(5/6)*24=20
Answers: numbers are 20, 24

7 0

2 years ago