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NARA [144]
3 years ago
11

Which expressions are equivalent to 4(-5z+2)+(-6)

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
5 0

Answer:

4(-5z+2)+(-6)=2(-10z+1) = True

Step-by-step explanation:

Taya2010 [7]3 years ago
4 0

never mind I am wrong dont use my answer

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What is the amplitude of the sinusoidal function?
saul85 [17]

Answer:

amplitude = 4

Step-by-step explanation:

the amplitude is the maximum subtract the minimum divided by 2

maximum = 1 and minimum = - 7

amplitude = \frac{1-(-7)}{2} = \frac{8}{2} = 4


8 0
3 years ago
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What is the multiplication and division property of exponets?
Alexandra [31]
Mult
(x^m)(x^n)=x^{m+n}

div
\frac{x^m}{x^n} =x^{m-n}



baseically, x is the base, and m and n are bases

you can only use this property if bases are same


baseically
multiply means add powers
divide means subtract bottom power from top
8 0
3 years ago
Can you help me out ​
Advocard [28]
The answer is 20

Your welcome
8 0
2 years ago
A rocket is launched from a tower what time will the rocket reach its max
Lena [83]

Answer:

Step-by-step explanation:

A science class designed a ball launcher and tested it by shooting a tennis ball up and off the top of a 15-story building. They determined that the motion of the ball could be described by the function: h(t) = -16t2 + 144t + 160, where ‘t’ represents the time the ball is in the air in seconds and h(t) represents the height, in feet, of the ball above the ground at time t.

a) Graph the function h(t) = -16t2 + 144t + 160 (see below)

      b) What is the height of the building?

The height of the building is also the height of the tennis ball before it is launched into the air. This occurs when t=0 so substitute 0 for t and you get:

H(0) = -16(0)2 + 144(0) + 160

The height of the building is 160 feet.

 c) At what time did the ball hit the ground?

The ball hits the ground when the height is 0. Therefore, we are looking for a solution to: -16t2 + 144t + 160 = 0

Use the quadratic formula or put this into a calculator. The solution is t=10 and -1, but only 10 makes sense. Therefore, the ball hits the ground at 10 seconds.

  d) At what time did the ball reach its maximum height?

You can put this into the calculator or you can realize that the maximum height is also

− the vertex. The x-value (‘t’ in this case) is 2

−144

which is (2)(−16) = 4.5.

Therefore, the ball reached its maximum height at 4.5 seconds.

   e) What is the maximum height of the ball?

We calculated the time of the maximum height (4.5 seconds). Therefore, substitute 4.5 into the function to find the maximum height.

-16(4.5)2 + 144(4.5) + 160

The maximum height is 484 feet.

5 0
2 years ago
When as rate, 100 miles in 5 hours would be ????? miles per hour
koban [17]

Answer:

20

Step-by-step explanation:

5 divided by 100 = 20

3 0
3 years ago
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