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GaryK [48]
3 years ago
5

Are the two lines parallel, perpendicular, coinciding lines, or neither?

Mathematics
1 answer:
Elena L [17]3 years ago
6 0

Answer:

D

Step-by-step explanation:

crosses at a 90 degree angle

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Quadratic equations and functions. <br> n^2+2n-15=0
sveta [45]

Answer:

n = -5, 3.

Step-by-step explanation:

n^2 + 2n - 15 = 0

Let's check if we can factor this quadratic:

We need 2 numbers whose product is -15 and whose sum is +2.

There are 2 such numbers and they are +5 and -3, so the factors are:

(n + 5)(n - 3) = 0.

n + 5 = 0 or n - 3 = 0

therefore the zeroes are -5 and 3.

8 0
3 years ago
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Find the missing supplementary angle.
SpyIntel [72]
50 degrees I’m guessing is the answer
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3 years ago
Simplify by using the distributive property and then combining like terms for the expression 7(2x+3)
max2010maxim [7]

Answer:

14x+21

Step-by-step explanation:

7*2x=14x

7*3=21

14x+21

hope this helps :9

6 0
3 years ago
1. what is 10% of 20? 2.What is 5% of 10?
Airida [17]
Hello,

Shall we begin?

1. what is 10% of 20?      = 20 * 0.1 = 2
2.What is 5% of 10?        = 10 * 0.05 = 0,5
3. What is 25% of 100?   = 100 * 0,25 = 25
4. What is 15% of 50?     = 50 * 0.15 = 7,5
5. What is 30% of 60?     = 60 * 0,3 = 18
6. What is 50% of 80?     = 80 * 0,5 = 40
7. What is 20% of 120?   = 120 * 0,2 = 24
8. What is 35% of 70?     = 70 * 0,35 = 24.5
9. What is 75% of 150?   = 150 * 0,75 = 112.5
10. What is 60% of 90?   = 90 * 0,6 = 54
11. What is 40% of 40?   = 40 * 0,4 = 16
12. What is 55% of 110? = 110 * 0.55 = 60.5
13. What is 80% of 130? = 130 * 0,80 = 104



5 0
3 years ago
Read 2 more answers
What is the solution of 2(4x-2) = 4
JulsSmile [24]

Answer:

Step-by-step explanation:

Divide 2 from both sides.

4x-2 = 4

Add 2 to both sides.

4x = 6

x = 1.5

8 0
3 years ago
Read 2 more answers
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