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inessss [21]
3 years ago
10

The area of circle Z is 64 ft2.

Mathematics
2 answers:
Maru [420]3 years ago
8 0

Answer:

r=4.51 ft

Step-by-step explanation:

Area of a circle is given by

A=\pi r^{2} where A is area and r is the radius. Making r the subject of the above formula then

r=\sqrt {\frac {A}{\pi}}

Substituting A with 64 then

r=\sqrt {\frac {64}{\pi}}\approx 4.51 ft

posledela3 years ago
3 0

Answer:

its 8

Step-by-step explanation:

i got it right

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If an object is dropped from a height of 116, the function h(t)=-16t^2+116 gives the height of the object after t seconds. When
Natasha_Volkova [10]

Answer:

A

Step-by-step explanation:

To find how long it takes for the object to hit the ground you need to set h(t)=0 after this you need to find the number that when plugged into t makes the equation equal to 0

5 0
3 years ago
Convert 2000 Swiss francs to Dutch guilders
Shtirlitz [24]

Answer:

2000 swiss francs equals 3920 Dutch Guilders!

Step-by-step explanation:

One Swiss Franc equals 1.96 Dutch Guilders. Having said this, we can come up with the following equation:

D = 1.96S

Where 'S' represents the swiss francs and 'D' the Dutch Guilders. Now, to convert 2000 Swiss francs, we just need to plug the value into the equation:

D = 1.96(2000) = 3920

So, 2000 swiss francs equals 3920 Dutch Guilders!

4 0
3 years ago
The function f(t)=-16 + 100 models the height of a ball, in feet, dropped from a 100-foot rooftop at time t, in seconds.
Mazyrski [523]

Using it's concept, it is found that the average rate of change of the function during the interval from 0 to 2 seconds is given by:

B. -32 ft/s; the average change in altitude of the ball each second over that interval.

<h3>What is the average rate of change of a function?</h3>

The average rate of change of a function is given by the change in the output divided by the change in the input. Hence, over an interval [a,b], the rate is given as follows:

r = \frac{f(b) - f(a)}{b - a}

In this problem, the function is given by:

f(t) = -16t² + 100.

The outputs are given as follows:

  • f(0) = -16(0)² + 100 = 100.
  • f(0) = -16(2)² + 100 = 36.

Hence the average rate of change is given by:

r = (36 - 100)/(2 - 0) = -32 ft/s.

And the correct option is:

B. -32 ft/s; the average change in altitude of the ball each second over that interval.

More can be learned about the average rate of change of a function at brainly.com/question/24313700

#SPJ1

8 0
2 years ago
Please help I think I picked the wrong answer !!
insens350 [35]

Answer:

one solution

Step-by-step explanation:

it has one solution because the slopes of the two equations(1x & 2x) are different, which means the lines of the two equations are not parallel, they have an intersection point(also means one solution).

6 0
3 years ago
What is the area of the square
Elza [17]
8x6=48 mi
Hope this helps
8 0
3 years ago
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