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3 years ago

14

A rectangle is 2 inches longer than it is wide. Numerically, its area exceeds its perimeter by 20. Find the perimeter. _________

___________ in

1 answer:

AnnyKZ [126]3 years ago

7 0

Answer:28

Step-by-step explanation: 6 x 8 = 48 6+6+8+8=28

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Which expression is not a polynomial?<br> x³<br> x² - 2x<br> x³ +1<br> 12x

zaharov [31]

Answer:

12x

Step-by-step explanation:

It has no exponent so it is not a polynomial

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1 year ago

What is the sum?<br> 8+(-12)<br> О-20<br> 0-4<br> 020

rodikova [14]

Answer: -4

Work: So, to get -4, we need to simplify the equation. If you see any equation with +(- that's subtraction. So, with the rule, this equation is basically 8-12, and that's -4.

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3 years ago

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Factor each completely. <br><br>10a² - 9a + 2 <br><br>

Sophie [7]

Answer:

a= $\frac{2}{5}$ or $\frac{1}{2}$

Step-by-step explanation:

Equate the equation to zero

$10a^{2}$ -9a+2=0

$10a^{2}$ -5a-4a+2=0

5a(2a-1)-2(2a-1)=0

Write out the factors

(5a-2)(2a-1)=0

Then equate each factor to zero

5a-2=0 OR 2a-1=0

5a=2 OR 2a=1

a= $\frac{2}{5}$ OR a= $\frac{1}{2}$

a= $\frac{2}{5}$ or $\frac{1}{2}$

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2 years ago

a car traveling at 12/s slows down at a constant rate for 4 seconds until it stops. what is its acceleration

Mila [183]

Answer:

-3 units / s/s.

Step-by-step explanation:

Acceleration = change of velocity / time

= 0 - 12 / 4

= -3 units /s/s.

Note: negative acceleration = deceleration.

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2 years ago

PLEASE HELP! image below

Viktor [21]

Answer: Angle BAD

We don't see the list; it's also called angle DAB.

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