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Ganezh [65]
2 years ago
7

Explain how to solve this problem.

Mathematics
2 answers:
Leya [2.2K]2 years ago
6 0
The answer is A. <span>Work backward. 
Hong started talking with her friends at 10:10. 
Hong started eating at 9:30. 
Hong started shopping at 8:45. 
Hong woke up at 8:25.</span>
o-na [289]2 years ago
3 0
After reading the first line of each of them, it has to be A
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The answer is b. Hope this helped

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Which is the graph of f(x) = –(x + 3)(x + 1)?
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Step-by-step explanation:

If the measure of angle 1 is (3 x minus 4) degrees and the measure of angle 2 is (4 x + 10) degrees, what is the measure of angle 2 in degrees? A horizontal line. A line extends from the line to form a 90 degree angle. Another line cuts through the 2 lines to form angles 1 and 2, which total 90 degrees.

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3 years ago
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I need help with substitution​
Neporo4naja [7]

Answer:

(-7,-15)

Step-by-step explanation:

We can substitute first y in the second y. Both equations are also functions. We can merge the equations.

2x - 1 = x - 8  \\ 2x - x =  - 8 + 1 \\ x =  - 7

Substitute x = -7 in any given equations. I will choose the second equation to substitute in.

y = x - 8 \\ y =  - 7 - 8 \\ y =  - 15

<u>Answer</u><u> </u><u>Check</u>

Substitute both x and y in both equations.

- 15 = 2( - 7) - 1 \\  - 15 =  - 14 - 1 \\  - 15 =  - 15

The equation is true for (-7,-15).

- 15 =  - 7 - 8 \\  - 15 =  - 15

The second equation is true for (-7,-15).

Therefore our answer is (-7,-15)

6 0
3 years ago
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Im just wasting points :) Ignore this
ollegr [7]
Why? how much points do you have to spare?
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