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Nesterboy [21]
3 years ago
5

Please tell me if I was right.

Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0
Im pretty sure you are i have done this question before and im pretty sure thats what i put and i got it right. plus just go with your gut

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Expand 8x - 2x + 3(-4x+9)
stiks02 [169]

Answer:

4

Step-by-step explanation:

Always do parentheses first!

-4x+9=-5x

8x-2x=6x

-5x-6x+3=

x+3=4

3 0
3 years ago
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I have no idea how to do this
Dimas [21]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
(4^4)^5 the answer in simplest terms
Ipatiy [6.2K]

Answer:

2^40.

Step-by-step explanation:

(4^4)^5

= 4^(4*5)

= 4^20

= (2^2)^20

= 2^40.

4 0
3 years ago
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The center of a hyperbola is (−4,3) , and one vertex is (−4,7) . The slope of one of the asymptotes is 2.
Monica [59]

Answer:

The answer to your question is below

Step-by-step explanation:

C (-4, 3)

V (-4, 7)

asymptotes = 2 = \frac{b}{a}

- This is a vertical hyperbola, the equation is

       \frac{(y - k)^{2} }{a^{2} } + \frac{(x - h)^{2} }{b^{2} } = 1

slope = 2

a is the distance from the center to the vertex = 4

b = 2(4) = 8

       \frac{(y - 3)^{2} }{4^{2} } + \frac{(x + 4)^{2} }{8^{2} } = 1

       \frac{(y - 3)^{2} }{16} + \frac{(x + 4)^{2} }{64} = 1

7 0
3 years ago
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The average waist size for teenage males is 29 inches with astandard deviation of 2 inches. If waist sizes are normallydistribut
choli [55]

Answer:

The z-score of a teenage with waist size 33 inch is 2

Step-by-step explanation:

Mathematically, the z-score can be calculated using the formula;

z-score = (x- mean)/SD

where mean = 29 inches , SD = 2 inches and x = 33 inch

Plugging these values, we have

z-score = (33-29)/2 = 4/2 = 2

5 0
3 years ago
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