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Marrrta [24]
2 years ago
5

Find all values of c such that 5c - 4 = 7 - 4-c/3

Mathematics
2 answers:
lina2011 [118]2 years ago
7 0
<span>5c - 4 = 7 - (4-c)/3
5c - 11 = </span>- (4-c)/3
15c - 33 = -4 + c
14c = 29
    c = 29/14
    or
    c = 2 1/14
Marina CMI [18]2 years ago
5 0
Hey there!

5c - 4 = 7 - \dfrac{4 - c}{3} \\ 15c - 12 = 21 - 4 + c \\ 14c = 29 \\ c = 2 \dfrac{1}{14}

Hope this helps. - M
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(4r2 – 3r + 2) – (-r2 – 3r) =
sasho [114]

Answer:

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Step-by-step explanation:

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Combine like terms

(4r^2 + r^2 – 3r+ 3r + 2) =

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... CD = √(5² -2²) = √21

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... AB = AC²/AD

... AB = 5²/2 = 12.5 . . . . . . . the base of the overall triangle

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Then the area (A) is ...

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As you see here, the altitude of a right triangle divides it into three similar triangles. From smallest to largest, they are ...

... ADC ~ CDB ~ ACB

You can figure this using AAA similarity, since the smallest and largest triangles listed above share an acute angle vertex (∠A). That, together with the right angle, means all angles are congruent. After that, then you know ∠ACD ≅ ∠CBD, so you can show the middle sized triangle is similar to the other two.

6 0
2 years ago
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marta [7]

Answer:

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Step-by-step explanation:

To solve the following equations, we need to isolate the variable asked using inverse operations to solve equations.

Remember that addition and subtraction are inverse operations, as multiplication and division.

Therefore,

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4 0
1 year ago
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ANEK [815]

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3 years ago
The number sentence 4x7=4x3 + 4x4 is an example of what property?
GarryVolchara [31]
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