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3 years ago

Please help i’m struggling so much

Mathematics

2 answers:

Lesechka [4]3 years ago

7 0

3 should be the answer

skelet666 [1.2K]3 years ago

7 0

Answer:

3 will be the answer.

Step-by-step explanation:

Hope it's help you ♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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Can someone pls help

Lunna [17]

Answer:
y intercept: (0,2)
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

3 years ago

Help please will mark brainliest answer!!! ASAP!!!

dezoksy [38]

P = principal (initial amount), r = rate of interest, and t = time

So, A = 3000(1+0.025)^4

Answer: $3,311.44 (approximately)

6 0

3 years ago

One T-Shirt is sold for every 5 people who attend a concert what is one way to write the unit rate in words

professor190 [17]

It can be written as: 1 T-Shirt per 5 people

If you have any further questions feel free to ask.

Hope this helps.

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3 years ago

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timmy was asked to order nine pizzas, with the following orders: one pepperoni and one cheese how many did he order in total

Romashka [77]

11 pizza's.

9 + 1 + 1 = 11

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3 years ago

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