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Rainbow [258]
3 years ago
13

Choose all that are correct given the equation:

Mathematics
2 answers:
Novay_Z [31]3 years ago
6 0

Answer:

A), B) & D).

Step-by-step explanation:

Alexus [3.1K]3 years ago
3 0

Answer:

A) y = 7.25 when x = –7

C) y = 8.5 when x = –4

D) y = 10.25 when x = 5

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What is 9.187 to the nearest tenth? And hundredth and one
Assoli18 [71]
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3 years ago
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What is the most efficient first step to isolate the variable term on one side of this equation?
Nat2105 [25]

Answer:subtract by 4x on each side first

Step-by-step explanation:

When you do so you'll get 5x on the left side of the equal sign and -5 on the right side. Next you would divide by 5 on both sides and this gives you x on the left side and -1 as your answer on the right side.

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3 years ago
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Use polynomial division to completely factor y=x^3+3x^2-13x-15 by x+5
Salsk061 [2.6K]

Answer:

(x - 3)(x + 1)(x + 5)

Step-by-step explanation:

I'd use synthetic division instead.  If we were to find the roots of the given polynomial, we could from them write the factors as well.

The divisor x + 5 corresponds to root x = -5.  Setting up synthetic div.,

-5   )   1    3    -13    -15

               -5     10    +15

      -----------------------------

           1   -2     -3      0

Since the remainder is 0, we know that -5 is a root and (x + 5) is a factor.  Moreover, we know that the coefficients of the quotient are 1, -2 and -3.

1x² - 2x - 3 can be factored:  the factors are (x - 3) and (x + 1).

So the end result for this problem is (x - 3)(x + 1)(x + 5).

7 0
2 years ago
Kelsey bought 9.6 ounces of chocolate. 7.9 ounces of it was milk chocolate and the rest was dark chocolate. How much dark chocol
Licemer1 [7]

Answer:

Step-by-step explanation:

dark chocolate = 9.6 - 7.9 = 1.7 ounces

6 0
3 years ago
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