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Nata [24]
3 years ago
9

"Use distributive property, show work: 7(2x1)"

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0
Well 7x2= 14
And 7x1=7

So the answer would be 14x7
vodka [1.7K]3 years ago
5 0
First, multiply 7 to the numbers inside the parenthesis

So, 7*2 is 14 and 7*1 is 7

Then, your answer is (14+7)

Ta-da!
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During a sale at the electronics store, movies sold for $3 and CDs sold for $2.50. Isla spent $19 and bought a total of 7 movies
Vinvika [58]
She bought 4 Movies and 3 CDs so she spend $19.50 bc 3+3+3+3=12 so 2.50+2.50+2.50=7.50 so 7.50+12=19.50
3 0
3 years ago
HELP!!!!:(<br>2.) WHAT'S THE RESULT?​
Juli2301 [7.4K]

-1+5x

You combine like terms:

Here there are two different ones.

the number without the variable (the 1s) and the one with the variable (5x)

All you have to do is combine them:

1+(-1)+(-1) = 1-1-1 = -1

5x = 5x

So, the answer would be -1+5x

Hope this helps :D

6 0
3 years ago
What is the area of the composite figure? ___ units^2
elena-14-01-66 [18.8K]

Answer:

  34 square units

Step-by-step explanation:

The figure can be considered to be a trapezoid with a rectangle removed.

The area of the trapezoid is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(10 +6)(5) = 40

The area of the rectangle is ...

  A = LW

  A = (3)(2) = 6

Then the area of the shaded portion of the figure is ...

  shaded area = trapezoid area - rectangle area

  = 40 - 6 = 34 . . . square units

7 0
2 years ago
Values of k for which the quadratic equation 2x - kx + k 0 has equal roots is
WARRIOR [948]

Answer:

The answer is D.

Step-by-step explanation:

We have to apply Discriminant Law. When a quadratic equation, ax² + bx + c = 0 has equal roots so the discriminant will be 0. Then, you have to substitute the values into the formula :

D =  {b}^{2}  - 4ac

let   \: D = 0 ,a = 2,b = k,c = k

0 =  {k}^{2}  - 4(2)(k)

{k}^{2}  - 8k = 0

k(k - 8) = 0

k = 0

k - 8 = 0

k = 8

4 0
3 years ago
-2/15 DIVIDED BY -2/5 LOWEST TERMS
Sidana [21]
I'm fairly certain the answer is 1/3.
3 0
3 years ago
Read 2 more answers
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