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3 years ago

If one side of a square measures (3x-8) find the area of the square

Mathematics

2 answers:

UkoKoshka [18]3 years ago

8 0

Answer:

9x^2 - 48x + 64

Step-by-step explanation:

Step 1: FOIL

(3x - 8)(3x - 8)

3x * 3x = 9x^2 First

3x * - 8 = -24x Outside

- 8 * 3x = -24x Inside

- 8 * - 8 = 64 Last

Step 2: Combine

9x^2 - 24x - 24x +64

Step 3: Simplify

9x^2 - 48x + 64 (Answer)

Wittaler [7]3 years ago

7 0

Answer:−21x−8

Step-by-step explanation: All sides have the same measure in a square, therefore all sides are 3x-8. Area is equal to 3x-8 times 3x-8 which is −21x−8

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Algebra help needed

lesantik [10]

Answer:

The ball will reach the ground when h=0.

Set the equation equal to 0.

$0=-8(2 t-4)(t+1)$

$t=-1,2$

Step-by-step explanation:

The height of a golf ball after it has been hit from the top of a hill can be modeled by the equation

$h=-8(2 t-4)(t+1)$ ,

where h is the height in feet and t is time in seconds.

When ball will reach the ground the distance between ball and ground is 0. So, the ball will reach the ground when h=0.

To find the time it takes for the ball to reach the ground, set the equation equal to 0 and use the Zero Product Property to solve for $t$.

$h=-8(2 t-4)(t+1)$

$\Rightarrow 0=-8(2 t-4)(t+1)$

Solve the equation using the Zero Product Property.

$2t-4=0\Rightarrow t=\dfrac{4}{2}=2$

$t+1=0\Rightarrow t=-1$

So, $t=-1,2$

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user100 [1]

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olga_2 [115]

Answer: