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gogolik [260]
3 years ago
6

Simplify 2( x - 3) + 7( x + 2). A. 9 x - 8 B. 9 x + 3 C. 9 x + 8

Mathematics
2 answers:
kupik [55]3 years ago
8 0

Answer: C. 9x + 8

Step-by-step explanation: Multiplied out, this is the long simplified answer:

2x - 6 + 7x + 14.

Add like terms together and you end up with:

9x + 8.

So your answer would be C.

Lynna [10]3 years ago
3 0

Answer:

Your answer should be C. 9x + 8.

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Answer:

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3 years ago
Does anyone have a idea ?
FromTheMoon [43]
Might be c not sure!!
4 0
3 years ago
What is the area of parallelogram ABCD?<br><br><br> ____ square units
valentinak56 [21]

Answer:

13

Step-by-step explanation:

Here's a method of finding the area of any polygon knowing its vertices. I'm using this parallelogram as an example.

Make a table like this (each vertex with its x- and y-coordinates):

Pt    x       y

A     3      6

B     6      5

C     5      1

D     2      2

A     3      6

Now multiply each x-coordinate by the y-coordinate on the line below and write it on the right side. Bold type shows the first multiplication.

       x       y

A     3      6

B     6      5      15

C     5      1        6

D     2      2      10

A     3      6      12

Now multiply each y-coordinate by the x-coordinate on the line below and subtract from each produce you already have. Do each subtraction. Bold type shows the first multiplication.

       x       y

A     3     6

B     6      5      15 - 36 = -21

C     5      1        6 - 25 = -19

D     2      2      10 - 2 =     8

A     3      6      12 - 6 =     6

Add all the differences.

       x       y

A     3      6

B     6      5      15 - 36 = -21

C     5      1        6 - 25 = -19

D     2      2      10 - 2 =     8

A     3      6      12 - 6 =     6

                                   +____

                                       -26

The area of the polygon is the absolute value of half of the sum of the differences.

area = |-26/2| = |-13| = 13

6 0
3 years ago
Write a quadratic function with two real zeros.
satela [25.4K]
The formula for quadratic equation is given by:

 x² - (sum)x + (product) = 0

so if we have real roots of 3 and 5 

<span> x² - (3 + 5)x + (3*5) = 0
</span> x² - 8<span>x + 15 = 0
</span>
so if we have real roots of -3 and -6  

<span> x² - (-3 - 6)x + (-2*-6) = 0
</span> x² - (-9<span>x) + 12 = 0
</span> x² + 9<span>x + 12 = 0</span>
5 0
3 years ago
The height h, in feet, of a projectile t seconds after launch is modeled by the equation h = 32t – 16t2. How long after launch d
Anna35 [415]

Answer:

2

Step-by-step explanation:

when it returns to the ground , h = 0

32t -16t2 = 0 and solve for t

t = 0, 2   ....0 is the start, 2 is when it returns

3 0
3 years ago
Read 2 more answers
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