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Dominik [7]
3 years ago
13

Please help quickly I’m being timed

Mathematics
1 answer:
ollegr [7]3 years ago
4 0
It’s a
Distribute the exponent to each term, then move your negative exponents to the opposite side then simplify.
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Use zero property to solve the equation.<br> F(x)=3x(x+7)-2(x+7)
oksian1 [2.3K]

Answer:

x = -7 or x = 2/3

Step-by-step explanation:

I'm assuming you meant solve for x when f(x) = 0.

f(x) = 3x(x + 7) - 2(x + 7)

0 = (x + 7)(3x - 2) -- Both terms have a common factor of (x + 7) so we can group them

x + 7 = 0 or 3x - 2 = 0 -- Use ZPP

x = -7 or x = 2/3 -- Solve

7 0
3 years ago
Four students spoke to the Home and School parents for a total of 2/3 hour. Each student spoke for the same amount of time. How
xeze [42]

creo que la respuesta el 10 minutos, porque dice "horas" pero no dice a cuantas horas equivale :)      espero que te aya adudado auque sea un poquito

8 0
2 years ago
The rectangle shown has a perimeter of 48 cm and the given area. Its length is 6 more than twice its width. Write and solve a sy
melamori03 [73]

Answer:

The length of the rectangle is 18 cm

The width of the rectangle is 6 cm

Step-by-step explanation:

Let

x-----> the length of the rectangle

y----> the width of the rectangle

we know that

The perimeter of the rectangle is

P=2(x+y)

we have

P=48\ cm

so

48=2(x+y) ------> equation A

x=2y+6 ------> equation B

Substitute equation B in equation A and solve for y

48=2(2y+6+y)

48=2(3y+6)

48=6y+12

6y=48-12

y=36/6=6 cm

Find the value of x

x=2(6)+6=18 cm

The area of the rectangle is

A=xy

A=18*6

A=108 cm^2

4 0
3 years ago
HELP PLEASE FAST I WILL MARK BRAINLIEST RANDOM ANSWERS WILL BE REPORTED
ElenaW [278]

Answer:

(-2,-4)

Step-by-step explanation:

Turning the point 180 degrees causes the point to be reversed, or upside down, therefore the numbers will become negative.

3 0
3 years ago
Which of the following is the most appropriate unit.to describe the rate at which a person reads
BaLLatris [955]
The answer is a words per minute, because the independent quantity is the words
8 0
3 years ago
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