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3 years ago

11

A triangle has side lengths of (4b−5c) centimeters, (9b+10d) centimeters, and (6d−8c) centimeters. Which expression represents t

he perimeter, in centimeters, of the triangle?

1 answer:

mrs_skeptik [129]3 years ago

5 0

Combine like terms would be 13b cm - 13c cm + 16d cm

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How many terms are in the expansion (a + b)^20

Burka [1]

There are 2 terms. these are a and b
(90% sure)

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3 years ago

7. What is the least of four consecutive integers whose sum is 58? *

Vlad [161]

Answer: 13

Step-by-step explanation:

represent the first integer as x

Since they are consecutive, you can represent the others as x+1, x+2, and x+3.

Write the equation

x + (x +1) + (x+2) + (x+3) = 58

Combine like terms

4x + 6 = 58

Solve for x

4x= 52

x=13

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4 years ago

Mr. Yueng graded his students’ math quizzes.

Artyom0805 [142]

For this case we must solve the following equation:

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If we apply cubic root to both sides of the equation, then we eliminate the exponent on the left side:

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That is the exact solution of the equation. Its decimal solution is given by:

$x = \sqrt [3] {22} = 2.8020$

ANswer:

The solution to the equation is $x = \sqrt [3] {22} = 2.8020$

3 0

3 years ago

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Rebecca believes that the sum of 3 + (-53) is 8.9 Kenneth thinks the sum is -27. Who is correct?

kobusy [5.1K]

Answer:

They both are not correct.

Step-by-step explanation:

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673 grams round to nearest 10 grams

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673 grams is closer to 670 than 680.
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