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hichkok12 [17]
2 years ago
15

Simplify the expression to a polynomial in standard form: (-3x-5)(-x^2+x-5)

Mathematics
2 answers:
s2008m [1.1K]2 years ago
8 0

Answer:

( - 3x - 5)( -  {x}^{2}  + x - 5) \\ 3 {x}^{3}  - 3 {x}^{2}  + 15x + 5 {x}^{2}  - 5x + 25 \\ 3 {x}^{3}  + 2 {x}^{2}  + 10x + 25 \\

I hope I helped you^_^

WINSTONCH [101]2 years ago
5 0

Answer:

should be the answer

Step-by-step explanation:

5x^2-10

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The ratio of the measures of the three angles in a triangle is 15:8:13. Find the measure of the three angles.
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Answer: 75, 40, 65

Step-by-step explanation:

Let the angles measure 15x, 8x, and 13x.

Since the sum of the angles of a triangle is 180 degrees,

15x+8x+13x=180, meaning that x=5.

So, the angles are 15(5)=75 degrees, 8(5)=40 degrees, and 13(5)=65 degrees.

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Step-by-step explanation:

4 x 2 x 1.5 = x

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3 years ago
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Answer:

Option B

Step-by-step explanation:

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The graph of an exponential function passes through the point (0,15) and (1,10). What is the equation of the exponential functio
Vilka [71]

Answer:

y=15(\frac{2}{3})^x

Step-by-step explanation:

we know that

The equation of a exponential function is of the form

y=a(b^x)

where

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b is the base of the exponential function

In this problem we have

a=15 ----> the y-intercept is given

substitute

y=15(b^x)

we have the other ordered pair (1,10)

substitute the value of x and the value of y and solve for b

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see the attached figure to better understand the problem

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Answer:

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