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2 years ago

I need help fast!!!!!

Mathematics

2 answers:

Vesna [10]2 years ago

7 0

-48 is the answer to the question

mean = Summation of Data/Number of Data Added

mean = [(-54)+(-32)+(-70)+(-25)+(-65)+(-42)] / 6

mean = -288 / 6
mean = -48

sammy [17]2 years ago

7 0

Answer: The required mean is -48.

Step-by-step explanation: We are given to find the mean of the following integers :

-54, -32, -70, -25, -65, -42.

We know that

the mean of a given set of integers is equal to the sum of the integers divided by the number of integers.

Therefore, the mean of the given set of integers is

$M\\\\\\=\dfrac{-54+(-32)+(-70)+(-25)+(-65)+(-42)}{6}\\\\\\=\dfrac{-54-32-70-25-65-42}{6}\\\\\\=\dfrac{-288}{6}\\\\=-48.$

Thus, the required mean is -48.

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Each of the line segments in the word MATH are numbered in the graph below. Find the slope (as a ratio of rise over run) of each

Leviafan [203]

Answer:

Line 1: $\infty$

Line 2: $-\frac{4}{3}$

Line 3: $\frac{4}{3}$

Line 4: $\infty$

Line 5: $\frac{7}{4}$

Line 6 : $-\frac{7}{3}$

Line 7: 0

Line 8: 0

Line 9: $\infty$

Line 10: $\infty$

Line 11: 0

Line 12: $\infty$

Step-by-step explanation:

Slope of line is given by the formula:

$\text{Slope = }\dfrac{\text{Change in } y\text{ coordinate}}{\text{Change in } x\text{ coordinate}}$

Line 1:

The change in $x$ coordinate is zero.

Therefore slope of line 1 is $\infty$ .

Line 2:

Change in $y$ coordinate = -4

Change in $x$ coordinate = 3

Slope = $-\frac{4}{3}$

Line 3:

Change in $y$ coordinate = 4

Change in $x$ coordinate = 3

Slope = $\frac{4}{3}$

Line 4:

The change in $x$ coordinate is zero.

Therefore slope of line 4 is $\infty$ .

Line 5:

Change in $y$ coordinate = 7

Change in $x$ coordinate = 3

Slope = $\frac{7}{3}$

Line 6:

Change in $y$ coordinate = -7

Change in $x$ coordinate = 3

Slope = $-\frac{7}{3}$

Line 7:

Change in $y$ coordinate = 0

Slope = 0

Line 8:

Change in $y$ coordinate = 0

Slope = 0

Line 9:

The change in $x$ coordinate is zero.

Therefore slope of line 9 is $\infty$ .

Line 10:

The change in $x$ coordinate is zero.

Therefore slope of line 10 is $\infty$ .

Line 11:

The change in $y$ coordinate is zero.

Therefore slope of line 11 is 0.

Line 12:

The change in $x$ coordinate is zero.

Therefore slope of line 12 is $\infty$ .

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2 years ago

You deposit $3000 in a savings account that earns 2.9% annual interest compounded monthly. You also save $80 per month in a safe

Jlenok [28]

Answer:

C(t)=3000(1.002417)^12t+960t

if T=1 year then the saving will be : 4048.17

Step-by-step explanation:

3000 deposit amount, 2.9 compound monthly interest . save 80 dollars per month at home .

A=p(1+r)^t

A=3000(1+0.029/12)^12t

A=3000(1.002417)^12t dollars

for the amount saved at home=80*12t=960t dollars

C(t)=3000(1.002417)^12t+960t

if T=1 year then the saving will be :

C(t)=3000(1.002417)^12t+960t

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2 years ago

What is the domain and limit(s) of f(x)=1/x+3?

SVEN [57.7K]

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7 0

2 years ago

I really need some help. I need to find the inverse of this equation in the picture below. Thanks!

serg [7]

Answer:

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Step-by-step explanation:

1. Interchange x and y.

y=\frac{\sqrt[4]{x+7}}{3}-2

x=\frac{\sqrt[4]{y+7}}{3}-2

2. Then solve x=\frac{\sqrt[4]{y+7}}{3}-2 for y.

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I hope this helps.

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2 years ago

In a bag of marbles 12% were blue 18% were green and the rest were purple if the bag has 150 marbles how many were blue or green

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Answer:

Step-by-step explanation:

12 % of the marbles are blue, and

18 % of the marbles are green, so

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There are 150 marbles.

30 % × 150 = 0.30 × 150 = 45

The number of blue or green marbles is 45.

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3 years ago