2 years ago

Which expression is equivalent to (10 + 7r-r?) + (-6r2-18 + 5r)?

Mathematics

2 answers:

Tom [10]2 years ago

8 0

H is the correct answer. After combining all the like terms that’s the answer you get.

vitfil [10]2 years ago

4 0

Answer:

Step-by-step explanation:

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Solve for y. 3(3y - 6) = 18

AveGali [126]

Answer:

y=4

Step-by-step explanation:

first you that the number outside of the parenthesis and multiply it by the numbers inside 3x3y (ignore the y for right now) and 6x3 now we have 9y-18=18 now we move the 18 so the y is by itself now we have 9y=36 divide both by 9 and you get your answer y=4

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2 years ago

What are the zeros of (x-2)(x^2-9)

WARRIOR [948]

$(x-2)(x^2-9)=0\iff x-2=0\ or\ x^2-9=0\\\\x-2=0\ \ \ \ |add\ 2\ to\ both\ sides\\\\\boxed{x=2}\\\\x^2-9=0\ \ \ \ |add\ 9\ to\ both\ sides\\\\x^2=9\iff x=\pm\sqrt9\to \boxed{x=-3\ or\ x=3}\\\\Answer:\boxed{x=-3\ or\ x=2\ or\ x=3}$

3 0

2 years ago

#10-12!!! look at picture!!! I don't give out points for free!!! T.T

Tom [10]

F(x)=x
Domain: 1 2 3 4 5 6
Range: 1 2 3 4 5 6

F(x)=2x
Domain: 1 2 3 4
Range: 0 2 4 6

3 0

3 years ago

Read 2 more answers

A little stuck on this problem help

KatRina [158]

Answer:

∠N = 31

Step-by-step explanation:

MN = MP

∠N = ∠P = x+3

∠M + ∠N + ∠P = 180

4x+6 + x+3 + x+3 = 6x + 12 = 180

x = 28

∠N = 28 + 3 = 31

5 0

2 years ago

What percentage of data points do the two whiskers contain? 25% 30% 50% 75%

Virty [35]

Answer:

The answer is C. 50%

Step-by-step explanation:

I'm doing the same thing and it's right. Trust me:)

8 0

2 years ago