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Lubov Fominskaja [6]
3 years ago
14

Help math beats me up in dark alleys

Mathematics
1 answer:
andriy [413]3 years ago
3 0

Replace x with 3:

f(x) = 20(0.5)^x

f(3) = 20(0.5)^3

First do 0.5^3 = 0.125

Now multiply that by 20:

20 x 0.125 = 2.5


f(3) = 2.5

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Which inequality is shown in the graph below?​
Lerok [7]

Answer:

Step-by-step explanation:

must be the equation

y > x+1

because the slope is 1 and is 1 abve the origin and a dotted line

4 0
3 years ago
What number multiplied by itself three times equals 2?
marta [7]
It depends on the number.
3 0
3 years ago
Factor completely
luda_lava [24]

Answer:

B)

B)

D)

Step-by-step explanation:

1. 7x^3y+14x^2y^3-7x^2y^2

The GCF of all the term of the above polynomial is 7x^2y , hence we take it outside and form a bracket

7x^2y(x+2y^2-y)

The polynomial within the bracket can not be factorized further hence this is our final answer. Option (B) is the right answer

2. 5x(x+3)+6(x+3)

The GCF of all the term of the above polynomial is (x+3) , hence we take it outside and form a bracket

(x+3)(5x+6)

The polynomial within the bracket can not be factorized further hence this is our final answer. Option (B) is the right answer

3. 8x^5+2x^4+4x^2

The GCF of all the term of the above polynomial is 2x^2 , hence we take it outside and form a bracket

2x^2(4x^3+x^2+2)

The polynomial within the bracket can not be factorized further hence this is our final answer. Option (D) is the right answer

4 0
3 years ago
The volume of a cylinder varies jointly with the square of its radius and with its height: V=kr^(2)h Cylinder A has a volume of
Brrunno [24]
We have the following equation:
 V = kr ^ (2) h
 For cylinder A we have:
 251.2 = k * ((4) ^ (2)) * (5)
 Let's clear k:
 k = 251.2 / (((4) ^ (2)) * (5))
 k = 3.14
 For cylinder B we have:
 V = 3.14 * ((3) ^ (2)) * (9)
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8 0
3 years ago
Correct answers only please!
alina1380 [7]

Answer:

10.50 is the interest

Step-by-step explanation:

B = p(1 + r)^t

P = 50

r = .10

t = 2

B = 50(1 + .1)^2

  = 50(1.1)^2

  = 50(1.21)

   = 60.5

But we want to know the interest and this is the balance

60.5- 50 = 10.5

4 0
3 years ago
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