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kvv77 [185]
3 years ago
12

What is the measure of DCB?

Mathematics
1 answer:
prohojiy [21]3 years ago
3 0
Angle C is Equal to 84 as well as angle A.
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Mary is an years old. What expression represents her age 7 years from now? Two years ago?
Rudiy27

Answer

What expression represents her age 7 years from now?

y =x+7x

Two years ago?

z=y-2x

Step-by-step explanation:

7 0
3 years ago
Find the inverse of each relation<br><br> (-3,-7) (0,-1) (5,9) (7,13)
masha68 [24]
(-7,-3) (-1,0) (9,5) and (13,7)
8 0
2 years ago
How do you figure out what is that makes a number a prime
Mice21 [21]
<span>Prime numbers are the numbers that are bigger than one and cannot be divided evenly by any other number except 1 and itself. If a number can be divided evenly by any other number not counting itself and 1, it is not prime and is referred to as a composite number. Prime numbers are whole numbers that must be greater than 1. Zero and one are not considered prime numbers. Learn how to determine which numbers are prime.

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6 0
3 years ago
Read 2 more answers
Please Help me :)<br> .<br> .<br> .<br> .<br> .
Softa [21]
The correct answer is x = 20
4 0
2 years ago
Read 2 more answers
Solve this system of equations. y = 5x +20 and y = -2x -8
Thepotemich [5.8K]

Answer:

y = 0

x = -4

( x, y ) = ( -4 , 0 )

Step-by-step explanation:

y = 5x + 20

y = -2x - 8

Substitute

5x + 20 = -2x - 8

Add 8 on both sides

5x + 20 + 8 = -2x - 8 + 8

5x + 28 = -2x

Subtract 5x on both sides

5x - 5x + 28 = -2x - 5x

28 = -7x

Divide by -7 on both sides

28/-7 = -7x/-7

-4 = x

Now that you have x, you can substitute it in one of the equations that was given to find the value of y.

y = 5x + 20

y = 5(-4) + 20

y = -20 + 20

y = 0

Or....

y = -2x - 8

y = -2(-4) - 8

y = 8 - 8

y = 0

They will both be 0 no matter what

Point form = ( -4, 0 )

Hope this helped

3 0
3 years ago
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