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hodyreva [135]
3 years ago
14

Helppp me pleaseee!!!!!!!

Mathematics
1 answer:
kenny6666 [7]3 years ago
7 0

Answer:

V=πr2h

3=π·72·9

3≈461.81412

Step-by-step explanation:

Mark me the brainliest PLZ.

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Is (3,10) a solution of the equation y=4x?
Alexxx [7]

Answer:

No

Step-by-step explanation:

(3, 10)

3 = x

10 = y

Substitute into equation

10 = 4(3)

10 = 12

No it isn't a solution as y doesn't = x

4 0
3 years ago
Can someone help me with these questions, don’t mind the answers written already
Rina8888 [55]

Answer:

a) x value is -2, min is -3(if thats y)

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Step-by-step explanation:

yes you do quadratic formula and such :)

8 0
2 years ago
Write the equation of a line that is perpendicular to y=-2/7x+9 and passes through the point (4,-6)
Ulleksa [173]
This is in slope-intercept form, so you can think of it as being y=mx+b. Invert m (the slope) and flip its sign, and then substitute the x and y values in and solve for b. The answer is y=7/2x-20. 
6 0
3 years ago
Read 2 more answers
3) What is 3x +15y=-16 in slope intercept form?
stellarik [79]

Answer:

y=-1/5x-16/15

Step-by-step explanation:

slope intercept form y=mx+b

3x+15y=-16

15y=-3x-16 divide both sides by 15

y=-3/15x-16/15   simplify -3/15 to -1/5

y=-1/5x-16/15

8 0
3 years ago
What is x equal to????
Ksju [112]

Answer:

x = 20

Step-by-step explanation:

The 3 arcs UV, VW, WX form a semicircle, so sum to 180° , that is

4x + 2 + x + 78 = 180

5x + 80 = 180 ( subtract 80 from both sides )

5x = 100 ( divide both sides by 5 )

x = 20

5 0
3 years ago
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