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zhenek [66]
3 years ago
9

Help me pls thanks so much

Mathematics
2 answers:
babunello [35]3 years ago
6 0

Answer:

B. (50.27)

Step-by-step explanation:  a = (pi)r^2

8/2 = 4

4^2 = 16

16(pi) = 50.27

You're welcome :)

Aleksandr [31]3 years ago
5 0

Answer:

=50.285714

Step-by-step explanation:

Area of a circle is equal to πr^2

diameter = 8 so radius = 4

22/7x4x4

22/7x16

=352/7

=50.285714

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Check my answers please?
sukhopar [10]
1. Correct answer is a (since when you are not given the n values, it is implied that the first value is 1). 
3. Correct answer is a (a(n)=-3+4(1-1)=-3).
 7. The pattern is to reduce the previous value by 4, thus the 12th term of the sequence is -24 (a(n)=20 - 4(n-1)=20 - 4(12-1)=-24).
 8. Missing term is 26 (32+20=52; 52/2=26).
 10. Pattern is 625/1=625; 625/5=125; 125/5=25; 25/5=5, thus. the 10th term is 1/3125 (answer a).
5 0
3 years ago
(WILL GIVE BRAINLIEST) Which of the following exponential functions goes through the points (1, 6) and (2, 12)?
olganol [36]

Answer:

\boxed{a. \: f(x) = 3(2)x} \: is \: correct

Step-by-step explanation:

if \: the  \: points \: are \:  (1, 6) \:  and  \: (2, 12) \to \\ then \to \\ m =  \frac{12 - 6}{2 - 1}  =  \frac{6}{1}  \\  \boxed{m = 6} \\ y - 6 = m(x  - 1) \\ y = 6x - 6 + 6 \\ y = 6x = (3)(2)x \\ but \: y = f(x) \to \: hence \to \\ \boxed{ f(x) = 3(2)x}

4 0
3 years ago
What soulution is true for x/3=1/4
andreyandreev [35.5K]

Answer:

x=3/4

Step-by-step explanation:

x/3=1/2^2

4x=3

4x/4=3/4

x=3/4

8 0
3 years ago
How many solutions does the system have? Y=-2x-4 y=3x+3
Fudgin [204]

Answer:

1

Step-by-step explanation:

Since they are not parallel nor the same line, they have 1 intersecting point, which is the solution.

If they were parallel, they would have no solution.

If they were the same line, they would have infinite solutions.

5 0
4 years ago
fine the equation of the line that goes through the point (2,-9) that is parallel to the line with equation y=-3/4x
Andre45 [30]

Answer:

y=6x

Step-by-step explanation:

g=-9/2

c=0

y=-9/2x

3/4x*-9/2

y=6x

8 0
3 years ago
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