West Junior High needs to buy new fencing to go around Evaluate the formula for the perimeter of a rectangle to

Mathematics

2 answers:

LenaWriter [7]3 years ago

8 0

Answer:

1,2,3, and 5 :]

Step-by-step explanation:

jeka943 years ago

6 0

Answer:

are the answers edg 2021 hope you have a good day/night

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Write the following number in standard decimal form four tenths

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0.4 is four tenths. 0.4 = 4/10=2/5

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Which sign makes this statement true

Vesna [10]

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The = sign

Step-by-step explanation:

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A ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is h-48t -16t^2.

Marat540 [252]

Answer:

36 feet.

Step-by-step explanation:

We have been given that a ball is thrown upward from ground level. Its height h, in feet, above the ground after t seconds is $h(t)=-48t -16t^2$ . We are asked to find the maximum height of the ball.

We can see that our given equation is a downward opening parabola, so its maximum height will be the vertex of the parabola.

To find the maximum height of the ball, we need to find y-coordinate of vertex of parabola.

Let us find x-coordinate of parabola using formula $x=-\frac{b}{2a}$ .

$x=-\frac{-48}{2(-16)}$

$x=-\frac{48}{32}$

$x=-\frac{3}{2}$

So, the x-coordinate of the parabola is $-\frac{3}{2}$ . Now, we will substitute $x=-\frac{3}{2}$ in our given equation to find y-coordinate of parabola.