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Anit [1.1K]
3 years ago
12

A boy throws a rock off a cliff. The function shown below models the flight of the rock, where x equals the distance the rock is

from the cliff in yards. What is the highest point the rock achieves?
f(x)= -x^2+4x+12
Mathematics
1 answer:
Gekata [30.6K]3 years ago
5 0

Answer:

im pretty sure its 12

Step-by-step explanation:

you would substitute x for 0 and then you're just left with 12

hope this help :))

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Sati [7]

Answer:

Step-by-step explanation:

We can find the area by breaking this into two rectangles one 3 by 7 and the other 1 by 2. The area of any rectangle is xy where x and y are its dimensions

A=3(7)+1(2)

A=21+2

A=23 yd^2

6 0
3 years ago
Read 2 more answers
If the square of twice a number is 81, what is the number? I tried doing 2x^2=81 but that did not come out to the answer 4.5,-4.
Vlada [557]
If the number is n then

square of 2 times a number
square of 2n
(2n)²
that was your mistake, because (2n)²=4n², not 2n²

the result is 81
(2n)²=81
square root both sides
remember positive and negative roots
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divide by 2
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4 0
4 years ago
A​ hot-air balloon is flying at an altitude of 2999 feet. If the angle of depression from the pilot in the balloon to a house on
Bezzdna [24]

Answer:

5668.3

Step-by-step explanation:

The problem can be represented as a right angled triangle as shown below.

The angle of depression is equivalent to the angle inside the triangle (alternate angles) and it is 34°.

The altitude of the balloon is 2999 feet. (opposite)

Using trigonometric function, SOHCAHTOA, we can solve this:

sin(34) = \frac{opposite}{hypotenuse}\\ \\sin(34) = \frac{altitude}{distance}\\\\sin(34) = \frac{2999}{distance}\\\\distance = \frac{2999}{sin34}\\\\distance = 5668.3 feet

The pilot is 5668.3 feet far away from the house.

4 0
4 years ago
Does anyone know the answer to this?
VARVARA [1.3K]

Answer:

1,4 and 1,0

Step-by-step explanation: if the x is the same then it is not a function.

6 0
3 years ago
Do bank tellers need a community college degree?<br><br>please help me​
xxTIMURxx [149]

Answer:

NO: FALSE

Step-by-step explanation:

becauase I am just that smart.

5 0
3 years ago
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