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Advocard [28]
3 years ago
8

The edge of one is 4cm longer than the edge of a second cube.The volume of the cubes differ by 316m square. Find the length of e

ach cube
Anyone that answers I will mark as brilliant
Mathematics
1 answer:
quester [9]3 years ago
5 0

Answer:

The sides are 3 and 7 cm long.

Step-by-step explanation:

Let the lengths be x and x+4 cm, then

(x + 4)^3 - x^3 = 316

x^3  + 12x^2 + 48x + 64 - x^3 = 316

12x^2 + 48x + 64 - 316 = 0

12x^2 + 48x - 252 = 0

12(x^2 + 4x - 21) = 0

12(x + 7)(x - 3) = 0

x = -7, 3

So one cube has side of length  3 cm.

The other has side 3+4 = 7 cm.

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The function h is defined as follows.
JulsSmile [24]

Answer:

The equation you are given is a quadratic. The standard form of a quadratic is y = a(x-h)2 + k where (h,k) is the vertex of the graph, which is a parabola. Vertically moving the graph 4 units upward means that you are moving k +4 units.

y = a(x-h)2 + k            standard form

y = 5x2 - 4                  original equation

y = 5(x-0)2 - 4            re-written in standard form

h = 0     k = -4

Four (4) units up is k + 4--->-4 + 4 = 0.

Therefore, f(x) = 5x2 + 0--->f(x) = 5x2.

Step-by-step explanation:

hope this helps

plz mark brainliest

3 0
2 years ago
Please help!!!! (don’t comment for free points, this isn’t the place)
Allushta [10]

tan 44 = h/ x

x = 15 ft * sin 26

so

h = x * tan 44

= (15 ft * sin 26) (tan 44 )

so the anser is D

hope this would help you

5 0
3 years ago
Read 2 more answers
Then find the values of x and y?
attashe74 [19]
Y+8=3y
-2y=-8
y=4

104*2=208
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6 0
2 years ago
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Make P the subject.<br> Q = 3P + 2
Ne4ueva [31]

Answer:

P = \frac{Q-2}{3}

Step-by-step explanation:

Q = 3P + 2 ( subtract 2 from both sides )

Q - 2 = 3P ( isolate P by dividing both sides by 3 )

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4 0
1 year ago
Solve the equation below: <br> (find x)
Novay_Z [31]

Answer:

X=-8

Step-by-step explanation:

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3x=-24

x=-24/3

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3 0
3 years ago
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