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4 years ago

Help me for 1????????

Mathematics

2 answers:

Vadim26 [7]4 years ago

6 0

To find the mean/data of a set of numbers, add all of the numbers together then divide by the number of numbers there are.

85+93+80+89+92+93+94+91+79 = 796
796/9 = 88.4444444 which can be rounded down to 88.4

The answer is 88.4.

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)

kvasek [131]4 years ago

5 0

The average score for the entire year is 88.44444, so by rounding down the answer is 88%

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Find the domain and range of the relation. {(−8,−4),(15,14),(−2,15),(14,−11),(19,−19)}

slega [8]

Domain = {-8,15,-2,14,19}

Range = {-4,14,15,-11,-19}

Step-by-step explanation:

When a function is given in the form of a relation containing ordered pairs

The first element of each ordered pair is the member of the domain while the second element of each ordered pair is the member of the range.

Given relation is:

{(−8,−4),(15,14),(−2,15),(14,−11),(19,−19)}

We have to combine the first elements of each ordered pair to make the domain set and second element of each ordered pair to make the range set.

So,

Domain = {-8,15,-2,14,19}

Range = {-4,14,15,-11,-19}

Keywords: sets, domain, range

Learn more about sets at:

#LearnwithBrainly

7 0

4 years ago

Read 2 more answers

((((this is multiple choice and i raised the points but you have to pick two))))

nasty-shy [4]

f(x) = 2^(4x)

g(x) = 2^x

(fg) = 2^4x * 2^x = 2^5x

NOTE: When multiplying two powers with same base exponents add.

(f/g)(x) = (2^4x)/(2^x) = 2^3x

NOTE: And when dividing they subtract.

Answer: a and c

//Hope it helps.

3 0

3 years ago

What is the value of x in the figure above? ^^

Zielflug [23.3K]

First solve for the other angles.
You know one angle is 15º.
The one across from it is also 15º since it is a vertical angle to the known 15º angle.
Both of those together gets 30º.
The whole thing is 360º, so just subtract 30 from 360 and divide.
360 - 30 = 330
Do the same for the 15x angle.
The one under/across to it is a vertical angle so is also 15xº.
Now you are left with 30xº = 330.
Just divide now.
330 / 30 = 11
x = 11
15x = 165

Checking your work:
15x = 165
15x = 165
15
15
Those are the angles.
Add those numbers together and make sure it adds up to 360º.
165 + 165 + 15 + 15 = 360
So this is correct.

7 0

3 years ago

What is the correct answer in the photo A. B. C. or .D please explain why

balu736 [363]

Answer:

I think its D)

Step-by-step explanation:

7x−3y+2=0

Add -7x to both sides.

7x−3y+2+−7x=0+−7x

−3y+2=−7x

Add -2 to both sides.

−3y+2+−2=−7x+−2

−3y=−7x−2

Divide both sides by -3.

−3y /−3 = −7x−2 /−3

which equals d)

I also use this app to convert equations to slope-intercept and it showed me this

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3 years ago

What is the arc length if

dem82 [27]

Answer:

A. 8π / 3

Step-by-step explanation:

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3 years ago