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Ilya [14]
2 years ago
11

13. If r + 9 = 42, does r +9-9=42 +9? Why or why not?

Mathematics
1 answer:
Vladimir79 [104]2 years ago
3 0

Answer:

no

Step-by-step explanation:

if u subtract negative nine from one side of the equation, in order to keep both sides of the equation equal, you must subtract 9 from the other side. moreover, if you subtract nine from one side and add 9 to the other, there will be a 9+9=18 difference in values of both sides

brainliest pls thanks

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The zeros of the given functions are shown on the attached picture.

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What is mAngleMHJ? HELP pLEASE<br><br> 35°<br> 50°<br> 72.5°<br> 92.5°
telo118 [61]

Answer:

50°

Step-by-step explanation:

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6 0
3 years ago
. f(x) = Square root of quantity x plus nine. ; g(x) = 8x - 13 Find f(g(x)). (1 point)
charle [14.2K]

Answer:

2 sqrt(2x-1)

Step-by-step explanation:

f(x) = sqrt( x+9)

g(x) = 8x-13

f(g(x))

place the function g(x) in for x in f(x)

f(g(x)) = sqrt(8x-13+9)

Combine like terms

f(g(x)) = sqrt(8x-4)

Factor out 4

f(g(x)) = sqrt(4*(2x-1)

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5 0
3 years ago
Read 2 more answers
If james has 4 apples and thalia has 6 apples how many apples do they have all together
natali 33 [55]
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8 0
3 years ago
2sin^2x - sinx - 3 = 0
e-lub [12.9K]
We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5

the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°

the answer is
sin x=-1
x=-90° or 270°

8 0
3 years ago
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