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mash [69]
3 years ago
15

What is the answer to this?

Mathematics
1 answer:
I am Lyosha [343]3 years ago
7 0
I can't see it well enough either
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If x=7and =-2, determine the value of 6x-4y
SVEN [57.7K]

Answer:

the answer is 50

Step-by-step explanation:

first you plug in the x and y in the equation, making it 6(7)=-4(-2)           then, you multiply the numbers together, making the equation 42+8.                                                    finally, you add those numbers together, giving you the answer 50

8 0
3 years ago
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Find the x-intercepts of the parabola with
12345 [234]

Answer:

x-intercepts are (0, 0) and (-6, 0)

Step-by-step explanation:

equation of a parabola in vertex form:  y = a(x - h)² + k

where (h, k) is the vertex

Substituting the given vertex (-3, -18) into the equation:

y = a(x + 3)² - 18

If the y-intercept is (0, 0) then substitute x=0 and y=0 into the equation and solve for a:

0 = a(0 + 3)² - 18

⇒ 0 = a(3)² - 18

⇒ 0 = 9a - 18

⇒ 9a = 18

⇒ a = 2

Therefore, y = 2(x + 3)² - 18

To find the x-intercepts, set the equation to 0 and solve for x:

                                 2(x + 3)² - 18 = 0

Add 18 to both sides:     2(x + 3)² = 18

Divide both sides by 2:    (x + 3)² = 9

Square root both sides:      x + 3 = ±3

Subtract 3 from both sides:  x = ±3 - 3

so x = 3 - 3 = 0  

and  x = -3 - 3 = -6

So x-intercepts are (0, 0) and (-6, 0)

8 0
2 years ago
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What is 86.425 as a mixed number?
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86 17/40!! (Simplified)
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3 years ago
Kyle is a satellite radio sales representative. He receives 7% commission on all sales. If
nikklg [1K]

Answer:

24,150

Step-by-step explanation:

7% of 345,000 = 24,150

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3 years ago
The answers for fall math test 8th grade
lukranit [14]

Answer:

ok

Step-by-step explanation:

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3 years ago
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