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luda_lava [24]
4 years ago
12

Solve.

Mathematics
1 answer:
pogonyaev4 years ago
5 0
Area = PI x r^2

r = 8/2 = 4

area = 3.14 x 4^2

area = 50.24 square inches
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Evaluate. Write your answers as fractions. <br>2^2/-5 =<br> -(5/4)^3=​
Natalija [7]
2^2/-5=-4/5
-(5/4)^3=-125/64
Hope this helps!!
5 0
1 year ago
The hyperbola with center at (4, 5), with vertices at (0, 5) and (8, 5), with b = 2.
galina1969 [7]
The standard form of hyperbola is:
(x-h)²/a²-(y-k)²/b²=1
center:(4,5)
Length of the horizontal transverse axis: 8-5=3=2a
thus
a=3/2
a²=9/4
b=2
b²=4

Hence the equation will be:
(x-4)²/(9/4)-(y-5)²/4=1
simplifying this we get:
[4(x-4)²]/9-(y-5)²/4=1
8 0
4 years ago
-9(x+3)=18<br> SOLVE THE EQUATION.<br> WILL GIVE BRAINLIST AND THANKS
storchak [24]

Answer:

x = -5

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-9(x+3) = -9x-27

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Divide -9 on both sides and you'll see that x = -5 because 45/-9

4 0
3 years ago
Read 2 more answers
I need help with this simple math question. "What are the zeros of the equation 4x^2 = 4" please explain every Step and how you
makkiz [27]
4x²=4

Dividing both sides by 4 just to make x² stand alone..

4x²/4 = 4/4

x² = 1

Taking the square roots of both sides (this is so as to cancel the square in x)

x²=1

x= square root of 1(meaning what can we multiply two times to give us 1)

x= 1 or - 1 in ±1

1×1 =1
-1×-1=1

Yhe Zeros are 1,-1...

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6 0
3 years ago
Idea of sampling variability?
vesna_86 [32]
The term "sampling variability" refers to the fact that the statistical information from a sample (called a statistic) will vary as the random sampling is repeated. Sampling variability will decrease as the sample size increases. Samplings vary because each sample is based upon a different set of the population.
7 0
3 years ago
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