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Tom [10]
3 years ago
14

Need help on this pls

Mathematics
1 answer:
aliya0001 [1]3 years ago
4 0
The answer to the question is A
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What’s the slope of a line perpendicular to a line through points, <br> E(5,7), F(3,1)
juin [17]

Answer:

-1/3 is the slope perpendicular

Step-by-step explanation:

When we have 2 points, we can use the formula

m = (y2-y1)/(x2-x1) to find the slope

m = (1-7)/(3-5)

   =-6/-2

    =3

The slope is 3

We want a slope perpendicular

Remember that is the negative reciprocal

- (1/3)

-1/3

5 0
4 years ago
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48 POINTS! PLEASE HELP!<br> Show work please THANKS
CaHeK987 [17]

Answer:

C  multiply the first equation by 3

Step-by-step explanation:

3x-y =5

2x+3y = 10

We want to eliminate y

Since the first equation has a negative 1y  and the second equation has 3y

I would multiply the first equation by 3  and then the y's cancel

3(3x-y =5)

9x -3y = 15

2x+3y = 10

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11x = 25

4 0
4 years ago
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Which is the solution of x/5 -10 =20 ?
andreyandreev [35.5K]

Add 10 to both sides

x/5 = 2 + 10

Simplify 20 + 10 to 30

x/5 = 30

Multiply both sides by 5

x = 30 × 5

Simplify 30 × 5 to 150

<u>x = 150</u>

6 0
3 years ago
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Tim wants to create a circle graph showing the number of physicians whose specialty is aerospace medicine. He knows the followin
Alenkinab [10]

Answer:

107 :)

Step-by-step explanation:

In total there are 53+8+155+17+145+10+98+2=488 physicians of aerospace medicine. 45-54 year-old males account for 145/488 of this population, so they should account for that fraction of the central angle of the circle graph also. Since there are 360 degrees in the central angle to divide up among the groups, the 45-54 year-old male group should get 145/488 x 360 which rounds to about 107 degrees.

8 0
2 years ago
1. A rectangular swimming pool measures 12 cm by 15 cm. What is the area of the pool?
igomit [66]

1) 180 square cm

Answer:

2) 41 cubic cm

Step-by-step explanation:

1)

Area of pool = 12 * 15 = 180 square cm

2) Volume of water = 1/3 * Volume of pool

= 1/3 *123

= 41 cubic cm

8 0
3 years ago
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