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dmitriy555 [2]
3 years ago
14

Plz answer this question:

Mathematics
1 answer:
alekssr [168]3 years ago
3 0

Answer:

90°

Step-by-step explanation:

5x+20=9x

20=9x-5x

20=4x

x=5

5x+20+9x=

5(5)+20+9(5)=

25+20+45=

90

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2.516x-4)=104 (1:5+0.5x)
Andre45 [30]

Answer:

x= 42.92527821

Step-by-step explanation:

2.156x-4 = 104

x would be

42.92527821

_______________________________________________________

(1:5+0.5x)

and nothing farther can be done with this one

5 0
3 years ago
Which division fact corresponds to the problem of 8×9 equals 72
kondor19780726 [428]
Basically just do the problem backwards.
72÷9=8
72÷8=9
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4 years ago
What is the unit of measure ?
Dima020 [189]
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4 years ago
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At what x value does the function given below have a hole?<br><br> f(x)=x+3/x2−9
S_A_V [24]

Answer:

hole at x=-3

Step-by-step explanation:

The hole is the discontinuity that exists after the fraction reduces. (Still doesn't exist for original of course)

The discontinuities for this expression is when the bottom is 0. x^2-9=0 when x=3 or x=-3 since squaring either and then subtracting 9 would lead to 0.

So anyways we have (x+3)/(x^2-9)

= (x+3)/((x-3)(x+3))

Now this equals 1/(x-3) with a hole at x=-3 since the x+3 factor was "cancelled" from the denominator.

4 0
3 years ago
An inch is equal to about 2.54 centimeters. Write an expression who he estimates the number of centimeters in x inches. Then est
trasher [3.6K]

There are 30.48 centimeters in 12 inches.

Step-by-step explanation:

Given,

1 inch = 2.54 centimeters

For x inches;

x inches = 2.54*x centimeters

x inches = 2.54x centimeters

Number of centimeters in 12 inches

We will put x=12

12 inches = 2.54(12) centimeters

12 inches = 30.48 centimeters

There are 30.48 centimeters in 12 inches.

Keywords: multiplication

Learn more about multiplication at:

  • brainly.com/question/10744457
  • brainly.com/question/10754198

#LearnwithBrainly

5 0
4 years ago
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