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3 years ago

WHO WANTS TO HELP ME PLEASE⁉️

Mathematics

1 answer:

NISA [10]3 years ago

5 0

Answer:

x= 69 y = 111

Step-by-step explanation:

if it works can i have brainliest?

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Given the polynomial 2x^3+18x^2-18x-162, what is the value of the constant "k" in the factored form?

maxonik [38]

2x³+18x²<span>-18x-162 =
2(</span>x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)

Answer: k=3

7 0

3 years ago

Solve for x: 3(x + 1) = −2(x − 1) + 6

In-s [12.5K]

Answer:

Step-by-step explanation:

$3(x + 1) = −2(x − 1) + 6$

Expand the terms in the bracket and simplify

That's

$3x + 3 = - 2x + 2 + 6 \\ 3x + 3 = - 2x + 8$

<u>Add 2x to both sides of the equation</u>

$3x + 2x + 3 = 2x - 2x + 8 \\ 5x + 3 = 8$

<u>Subtract 3 from both sides of the equation</u>

$5x + 3 - 3 = 8 - 3 \\ 5x = 5$

<u>Divide both sides by 5</u>

$\frac{5x}{5} = \frac{5}{5} \\$

We have the final answer as

Hope this helps you

8 0

3 years ago

Write the equation in slope intercept form. Then find the slope and y intercept of the line. Y=-5

lisov135 [29]

$\bf y=\stackrel{slope}{m}x+\stackrel{y-intercept}{b}
\\\\\\
y=-5\implies y=0x-5\implies y=\stackrel{slope}{0}x\stackrel{y-intercept}{-5}$

3 0

4 years ago

QUESTION ON PIC THANK YOU

lukranit [14]

Answer:

1. Figure C

2. Figure C

3. Figure B

Step-by-step explanation:

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2 years ago

Using the equation ŷ = 2.6 − 3.1x, what is the predicted value if x is 4.3?

Salsk061 [2.6K]

<h3>Answer: Choice A) -10.73</h3>

Work Shown:

Plug x = 4.3 into the equation given

ŷ = 2.6 − 3.1x

ŷ = 2.6 − 3.1(4.3)

ŷ = 2.6 − 13.33

ŷ = -10.73

Note: The symbol ŷ is read as "y hat". It's used to estimate the y value when it comes to regression equations.

5 0

3 years ago