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kompoz [17]
3 years ago
9

Select the correct answer​

Mathematics
2 answers:
pochemuha3 years ago
7 0

Answer:

B

Step-by-step explanation:

3x^2+5x-7x^2-28 then simplify

Strike441 [17]3 years ago
6 0

Answer:

-4x^2+5x-28

Step-by-step explanation:

3x^2 +5x - 7(x^2 +4)

Distribute the -7

3x^2+5x-7x^2-28

Combine like terms

-4x^2+5x-28

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Melaine has written 5/6 of her essay. she has written 15 pages so far. How long does her entire essay have to be?
MrMuchimi

Answer:

18

Step-by-step explanation:

3*5=15

Therefore, every time  she completed 3 pages that was a mark down.

3= 1/6     12=4/6

6=2/6     15=5/6

9=3/6     18=6/6 or 1 whole

7 0
3 years ago
Which representation of a transformation on a coordinate grid does not preserve congruence?
Ghella [55]
The second one time for me a little kid I got the wrong thing to say I was
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3 years ago
What is the value of the expression "eight more than three times the difference of four and a number" when n =
Genrish500 [490]

Answer:

11

Step-by-step explanation:

3 (4 - n) + 8

When n = 3:

3 (4 - 3) + 8

3 (1) + 8

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11

6 0
3 years ago
Read 2 more answers
Can anyone help me plzzz??!
Roman55 [17]

Answer:

X=1

Step-by-step explanation:

It’s 2 secant lines on a circle.

https://www.mathplanet.com/education/geometry/circles/advanced-information-about-circles

Look at that website. The part says that (ab*ad)=(ac*ae)

Doing that, we get

9*(9+11x)=10(10+8x)

81+99x=100+80x

19x=19

X=1

4 0
3 years ago
Q and R are not mutually exclusive events. If P(Q)=5/8 and P(R)=1/8 and P(Q and R)=1/32,Find P(q or R)
artcher [175]
The solution for this problem is just adding and subtracting fractions. We all know how to add and subtract function because our teacher since high school teach us how to. P(Q or R) = P(Q) + P(R) - P(Q and R) = 5/8 + 1/8 - 1/32 = 23/32

The answer to this question is 23/32.
8 0
3 years ago
Read 2 more answers
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