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sergiy2304 [10]
4 years ago
5

Who got the answer to this ? (4x^2+6+7)-(-8x^2-2x+6)

Mathematics
1 answer:
Andru [333]4 years ago
7 0

Answer:

12x^2+2x+7

Step-by-step explanation:

Distribute the Negative Sign:

=4x^2+6+7+−1(−8x^2−2x+6)

=4x^2+6+7+−1(−8x^2)+−1(−2x)+(−1)(6)

=4x^2+6+7+8x^2+2x+−6

Combine Like Terms:

=4x^2+6+7+8x^2+2x+−6

=(4x^2+8x^2)+(2x)+(6+7+−6)

=12x^2+2x+7

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Open with Angles p and q are complementary, p is four times the size of q. What is the size of q ? ​
Mashutka [201]

Answer:

p = 72

q = 18

Step-by-step explanation:

Complementary means they add to  90o

p + q = 90

p = 4*q

Substitute 4q for p

4q + q = 90            Combine

5q = 90                  Divide by 5

5q/5 =90/5

q = 18

p = 4q

p = 4*18

p = 72

6 0
3 years ago
Is B.) 8 the right answer to 2(4x - 6) = 6x - 4?
gizmo_the_mogwai [7]

hello

8 the  no right answer to 2(4x - 6) = 6x - 4

because : 2(4(8)-6) = 6(8)-4

               2(26) = 48-4

               52 =44


4 0
3 years ago
Your job is to sort and sack marbles for sale. A bag contains 90 marbles, some red and some blue. If there are 60 blue marbles,
brilliants [131]

Answer:

2:1

Step-by-step explanation:

90-60 = 30 red marbles

blue:red → 60:30 → 2:1

5 0
3 years ago
Read 2 more answers
Can y’all help me with this!???? I’ll boost you up!
Alecsey [184]

The equations have been computed below

<h3>How to illustrate the information?</h3>

3(x + 2) + 11 = 5(x - 4)

3x + 6 + 11 = 5x - 20

Collect like terms

3x - 5x = -20 - 17

-2x = -37

x = 37/2

x = 18.5

6x + 4 = 3(3 - 2x)

6x + 4 = 9 - 6x

Collect like terms

6x + 6x = 9 - 4

12x = 5.

x = 5/12

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
A jar contains 6 red marbles numbered 1 to 6 and 4 blue marbles numbered 1 to 4. A marble is drawn at random from the jar. Find
svetoff [14.1K]

Answer:

Step-by-step explanation:

A

The marble is red. There are 6 red marbles out of ten. So the answer is

6/10 = 0.60

B

Red: 1 3 5

Blue: 1 3

So there are 5 ways that you can draw an odd number. The problem is that they are not evenly distributed.

Red: 1/2 * 3/6 = 1/4 = 0.25

Blue: 1/2 * 2/4 = 0.25

Red + blue = 1/4 + 1/4 = 1/2

You could have gotten 1/2 by taking 5/10 but that won't always work.

C

4 0
3 years ago
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