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UkoKoshka [18]
2 years ago
5

Please help right now??

Mathematics
2 answers:
makvit [3.9K]2 years ago
8 0
The picture is blank bsnsbsbsbdbbdbshd
timurjin [86]2 years ago
5 0
The picture is black HAHAH
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Help me with this question please
docker41 [41]

7x/x-4 * x/x+7

mutiply the numerators together

(7x)(x)= 7x^ 2

mutiply the denominators together

(x-4)(x+7)

(x)(x)(7)(x)= x^2+7x

(-4)(x)(-4)(7)= -4x-28

x^2+7x-4x-28

x^2+3x-28

Answer:

7x^2/x^ 2+3x-28

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Find measure dbc <br> 19<br> 22<br> 23<br> 161 <br> HELP !!!
uysha [10]
∠DBC = 19° since the two angles have to add up to 180, if x = 23, then 23 -4 = 19 for the right, and 7 x 23 = 161, and 161 + 19 = 180.
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3 years ago
Find the greatest common factor of 7 and 7.
marusya05 [52]

Answer:

7

Step-by-step explanation:

Obviously

5 0
3 years ago
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Two quantities, x and y, are directly proportional. If x is doubled, what happens to y?
vagabundo [1.1K]

Answer:

y is also doubled.

Step-by-step explanation:

Direct proportionality between x and y means that

y \propto x

or

y=cx,

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Therefore, if x is doubled, then the new value of y is y_{new}

y_{new}=c(2x)

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y_{new}=2y

The new value of y is 2 times the previous; therefore, y is doubled as x is doubled.

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Answer:

15

Step-by-step explanation:

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