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Over [174]
3 years ago
11

Write two subtraction equations to show 15-7.

Mathematics
1 answer:
kirill [66]3 years ago
7 0
15 - 7 = 8
15 - 7 - 0 = 8
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Solve for X<br><br> Pls help if you can
Lostsunrise [7]

Answer:

x+8

Step-by-step explanation:

144-24 =120

120/15=8

x=8

6 0
3 years ago
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Which of the following numbers can be expressed as repeating decimals? 3 over 7, 2 over 5, 3 over 4, 2 over 9
Maurinko [17]

Hello!

Let's think about the denominators we have. A seventh goes on forever in no specified order. A fifth an a fourth have set decimal values, 0.2 and 0.25, so they are not repeating decimals. A ninth is 0.111111..., it repeats like this forever in a specified order. Therefore, 2/9, or 0.222222...., would be a repeating decimal.

Therefore, our answer is \boxed {\frac{2}{9}}.

I hope this helps!

6 0
3 years ago
What are all the exact solutions of 2 sin^2 x- sin x = 0
alexandr1967 [171]
Factor:

2sin^2x-sinx = 0

sinx(2sinx - 1) = 0

Therefore the solutions are when:

sin x = 0
And
sinx = 1/2

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is true when x = 0 and pi  and all the angles coterminal with these points.  Thus, the answer is x = pi*n, (where n is some integer)

sinx = 1/2
is true when x = pi/6 and 5pi/6 and the angles coterminal with these points.
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and x = 5pi/6 + 2pi*n (where n is some integer)
7 0
3 years ago
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What is the solution to 31|-3x + 9|=-18
Kisachek [45]

Answer:

No solutions

Step-by-step explanation:

31 times any positive number cannot be a negative number.

8 0
3 years ago
Please somone helppppp
Lyrx [107]

Answer:

its an open circle on -2 and the line is to the right

Step-by-step explanation:

-2x=4

x=4/-2=-2

and the sign is the same and its an open dot because its not greater too or equal to

6 0
3 years ago
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