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4 years ago

I want to know the height of the flagpole

Mathematics

1 answer:

DIA [1.3K]4 years ago

7 0

24ft in the air or something

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Hello! Please answer this question with all of the info it is asked for. Please be sure to include all of your work and share an

bija089 [108]

Answer:

a) 6.5 seconds
b) 13 seconds
c) 679 ft

Step-by-step explanation:

Given function:

h(t) = -16t^2 + 208t + 3

a) Maximum height is the vertex. The ball reaches the maximum after:

h = -208/2(-16) = 6.5 seconds

b) Time the ball was in the air:

-16t^2 + 208t + 3 = 0

Solving we get approximately t = 13 seconds

c) Maximum height is at vertex, we found t above:

h(6.5) = -16(6.5)^2 + 208*6.5 + 3 = 679 ft

3 0

3 years ago

One serving of soybeans contains 14 grams of protein and 8 grams of fat. One serving of rice contains 4 grams of protein and 1/2

mina [271]

Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.

Step-by-step explanation:

Let x be the number of soybeans and y be the number of rice.

Then , According to the question , we have

$14x+4y=30\\\Rightarrow\ 7x+2y=15..................................(1)\\\\ 8x+\frac{1}{2}y = 15\\\Rightarrow\ 16x+y=30.............................(2)$

Multiply 2 on both the sides of equation (2), we get

$32x+2y=60................................(3)$

Subtract equation (2) from equation (3), we get

$25x=45\\\\\Rightarrow\ x=1.8$

Put x = 1.8 in equation (2), we get

$16x+y=30\\\\\Rightarrow\ y=30-16x\\=30-16(1.8)=1.2$

Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.

8 0

4 years ago

HOW CAN I GET EQUATION B FROM EQUATION A?

Lostsunrise [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

A rectangle prism has a height of 4 millimeters and width 5 millimeters. The total surface area is 166 square millimeters, what

Zolol [24]

The answer is 7, 2(7x5) + 2(4x7) + 2(5x4) = 166

7 0

3 years ago

What is 6.92 with an exponent of 0?

Zigmanuir [339]

It will be 1 because your multiplying it by 0

5 0

3 years ago

Read 2 more answers