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Flura [38]
3 years ago
15

...,........................

Mathematics
1 answer:
asambeis [7]3 years ago
5 0

the correct answer is D

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A football is kicked at 40 yards away from a goal post that is 10 feet high. Its path is modeled by y = -0.03x 2 + 1.6x, where x
iren2701 [21]

Answer:

The football is going to go over the goal post.  It will clear the goal post by (16-10)  6 ft

Step-by-step explanation:

y = -0.03x^2 + 1.6x

Let x = 40

We need to determine if y> 10

y = -0.03(40)^2  + 1.6(40)

y = -48+64

y =16


Since 16>10

The football is going to go over the goal post.  It will clear the goal post by (16-10)  6 ft

6 0
3 years ago
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When this kettle is full of water it has a mass of 2900 grams. When the kettle is half full of water it has a mass of 2050 grams
Sati [7]
If you would like to know the mass of the kettle when it is empty, you can calculate this using the following steps:

2900 grams - 2050 grams = 850 grams (half of water)

2050 grams - 850 grams = 1200 grams (no water)

The correct result would be 1200 grams.
4 0
3 years ago
5<br> The slope of EF is<br> Which segments are perpendicular to EF?<br> Select each correct answer.
Anvisha [2.4K]

Answer:

the first two answers are perpendicular

8 0
3 years ago
What number must you add to complete the square x^-8x=39
notsponge [240]

Answer:

Given equation: x^2-8x =39

when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;

x^2-8x+4^2 = 39 +4^2

∵8 is the value (\frac{8}{2})^2

Notice that, we add this both sides so that it maintains the equality.

then;

x^2-8x+4^2 = 39 +4^2

(x-4)^2 = 39 + 16   [ (a-b)^2 = a^2-2ab+b^2 ]

Simplify:

(x-4)^2 =55

The number must be added to complete the square is, 4^2 = 16



3 0
3 years ago
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Mark wants to fence 4 rectangular gardens, each with a length of 9 1/4 feet and a width of 4 1/2 feet. What is the total length
krek1111 [17]
41 and 5/8ths feet is for one rectangular garden, and 166 and 1/2 feet is for all four gardens combined
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3 years ago
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