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RideAnS [48]
3 years ago
10

What is the opposite of -21? show all work

Mathematics
1 answer:
bogdanovich [222]3 years ago
8 0
21 is the opposite of -21
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If g(x) = x^2 + 2, find g(3). 9 8 11 6
creativ13 [48]

The answer is 11.

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3 years ago
Drag a statement or reason to each box to complete this proof.
kotykmax [81]

Step-by-step explanation:

distribute the -2 to (x+1) you end up with -2x-2=8 (multiplication property). Add 2 to both sides to get rid of the -2 of the left (addition property). 8+2=10. -2x=10 divide the -2 to both sides. x=-5 (division property).

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Find the inverse of 2∛(x+2)
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y=2\sqrt[3]{x+2}\ \ \ |divide\ both\ sides\ by\ 2\\\\\sqrt[3]{x+2}=\dfrac{y}{2}\to x+2=\left(\frac{y}{2}\right)^3\ \ \ |subtract\ 2\ from\ both\ sides\\\\x=\dfrac{y^3}{2^3}-2\\\\x=\dfrac{1}{8}y^3-2\\\\\boxed{f(x)=2\sqrt[3]{x+2}\to f^{-1}(x)=\frac{1}{8}y^3-2}
5 0
3 years ago
Given: 5x - 6y = 0, What is the x-intercept?
horrorfan [7]
A, x-intercept is when y=0, so in this case when y=0, the equation becomes 5x=0. Therefore, x must equal 0 for 5x=0. so y=0 and x=0 so the answer it (0,0), which is A.
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I just need help because i dont understand it
Y_Kistochka [10]

Answer:

8

Step-by-step explanation:

2 times 4 is 8

4 0
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