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Lapatulllka [165]
3 years ago
15

What is x/-4 + 7 = 9​

Mathematics
1 answer:
lawyer [7]3 years ago
7 0

Answer:

x = 8

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

x  = 8

Hope it helps!

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The cable railway was driven by a 8 foot diameter drum that turned 13 revolutions per minute. Find the linear velocity of the ca
slava [35]

Answer:

The linear velocity of the cable ≅ 327 feet per minute.

Step-by-step explanation:

Given that the diameter of the drum = 8 feet

Radius of the drum = \frac{diameter}{2}

           = \frac{8}{2}

           = 4 feet

Radius of the drum = 4 feet

1 revolution = circumference of the drum

circumference of the drum = 2\pir

where r is the radius.

So that;

circumference of the drum = 2 x \frac{22}{7} x 4

                                             = \frac{176}{7}

                                            = 25.143

circumference of the drum = 25.143 feet

The linear velocity of the cable = (13 x 25.143) feet per minute

                               = 326.859 feet per minute

The linear velocity of the cable ≅ 327 feet per minute.

8 0
3 years ago
The circle below is centered at the point (-3/4) and has a radius of length 3 what is its equation??
Agata [3.3K]
{x-(-3/4)}^2=3^2
(x+3/4)^2=9
{(4x+3)/4}^2=9
(4x+3)^2/16=9
(4x+3)^2=9*16
16x^2+2*4x*3+3^2=144
16x^2+24x+9=144
16x^2+24x+9-144=0
16x^2+24x-135=0
6 0
3 years ago
Read 2 more answers
PLS, NO FILES, OR LINKS, JUST ANSWERS, AND EXPLANATIONS..... What is the combined area of the two bases of the following cylinde
sukhopar [10]

Answer:

87.92

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Need help with 7 and 8 please
iren2701 [21]

7 is “what was our opinion of the experiment and results?”

8 is “random”

3 0
4 years ago
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If UW = 9x -9, what is UW in units?
antiseptic1488 [7]
Did u get this figured out
4 0
3 years ago
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