2 years ago

PLEASE HELP ASAP PLEASE

Mathematics

1 answer:

Oxana [17]2 years ago

6 0

Answer:

288 cm^3

Step-by-step explanation:

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This is my question

Talja [164]

Answer/Step-by-step explanation:

∆ABC is similar to ∆CDE. Therefore, the ratio of their corresponding sides are proportional.

This,

$\frac{DE}{AB} = \frac{DC}{AC}$

$\frac{4}{3} = \frac{x + 3}{x + 1}$

Solve for x

$4(x + 1) = 3(x + 3)$

$4x + 4 = 3x + 9$

$4x + 4 - 4 = 3x + 9 - 4$

$4x = 3x + 5$

$4x - 3x = 3x + 5 - 3x$

$x = 5$

Use the value of x to find AC and DC

$AC = x + 1 = 5 + 1 = 6$

$DC = x + 3 = 5 + 3 = 8$

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2 years ago

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jekas [21]

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2 years ago

The dimensions of a cube are doubled. The volume of the enlarged cube is how many times the volume of the original cube?

Elza [17]

The volume is multiplied by 8. For example if you have a 1x1x1 cube the volume is 1. If you have a 2x2x2 cube the volume is 8. If you have a 4x4x4 the volume is 64.

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3 years ago

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Why is x = 4 a solution to the proportion StartFraction 14 over x EndFraction = StartFraction 56 over 16 EndFraction?

mamaluj [8]

Answer:

D Because if you substitute 4 into the equation for x and cross multiply, you get 224 = 224.

Step-by-step explanation:

When you cross multiply, you get 14×16=224, and 224÷4=56.

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3 years ago

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Help i'll give 20points

saul85 [17]

Step-by-step explanation:

512+18=530

423+12=435

5421+14=5435

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2 years ago

PLEASE HELP ASAP PLEASE​

PLEASE HELP ASAP PLEASE