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Olin [163]
3 years ago
11

Hello can u tell me if the answer and work is correct if not tell me

Mathematics
2 answers:
ohaa [14]3 years ago
4 0
Your work seems to be correct
Umnica [9.8K]3 years ago
3 0
Hi.
Your work appears to be correct. If you still doubt it,try running your answers through a calculator, or try plotting the points on a line to see if it corresponds with the other points

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Helppppppp pleaseeee
Law Incorporation [45]

Answer:

B

Step-by-step explanation:

E=\dfrac{1}{2}mv^{2}\\\\\\2E = mv^{2}\\\\\dfrac{2E}{m}=v^{2}\\\\\\\sqrt{\dfrac{2E}{m}}=v

4 0
2 years ago
Write an equation of the line that passes through the points (-3,-4),(6,-1)
klasskru [66]
Find and review the slope formula.

The slope of a line segment that connects the points (a, b) and (c, d) is
           d-b
m = --------------
           c-a

Write out this formula for a=-3, b=-4, c=6 and d=-1.

3 0
3 years ago
The length of a rectangle is 4 yd more than twice the width x. The area is 390
masya89 [10]

Step-by-step explanation:

step 1. let l be the length of the rectangle

step 2. l = 2x + 4

step 3. lx = 390 yd^2

step 4. (2x + 4)x = 390

step 5. 2x^2 +4x = 390

step 6. 2x^2 + 4x - 390 = 0

step 7. -4 +- sqr(4^2 -4(2)(-390))/2(2) quadratic formula

step 8. (-4 +- sqr(3136))/4

step 9. (-4 +- 56)/4

step 10. x = 13yd, l = 2x + 4 = 2(13) + 4 = 30yd.

3 0
3 years ago
£50 is divided between Brian Colin and Dan so that Brian gets twice as much as colin and Colin gets three times as much as Dan.
cluponka [151]

Answer:

33.32

Step-by-step explanation:

50/3=16.66

brian gets twice as collin

16.66*2=33.32

3 0
2 years ago
Read 2 more answers
4. An object is at rest if all forces
algol13

Answer:

+5.5

Step-by-step explanation:

Lets say you have an apple and you apply -5.5 newtons of force to it, for it to be balanceds you have to push the opposite, which is +5.5 newtons.

3 0
2 years ago
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