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3 years ago

Evaluate 3r³+5,when r=2

Mathematics

2 answers:

Elza [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Alexxx [7]3 years ago

7 0

Answer:

221

Step-by-step explanation:

r=2

32³+5=

3x2= 6

6³ +5

6x6x6 = 216

216 + 5 =221

Hope this helps please give me brainliest!

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Brilliant_brown [7]

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3 years ago

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Ratling [72]

Answer:

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Step-by-step explanation:

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7 0

3 years ago

PLSSS HELP ASAP WILL GIVE BRAINLEAST!!!!!!!!!!!!

den301095 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Rewrite! Write an new and equivalent equation that is easier to solve

Marysya12 [62]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

Given - an equation in a standard form

To do - simplify the equation so as to obtain an easier one

Since the equation provided isn't in it's general form , let's first convert it ~

General form of a Linear equation -

$\bold{ax + b = 0}$

The equation after getting converted will be as follows ~

$- 7 + ( \frac{4x + 2}{2} ) = 8 \\ \\ \implies \: \frac{ - 14 + 4x + 2}{2} = 8 \\ \\ \implies \: - 14 + 4x + 2 = 16 \\ \\ \implies \: 4x = 16 + 14 - 2 \\ \\ \implies \: 4x = 28 \\ \\\bold{ General \: form \: \dashrightarrow \: 4x - 28 = 0}$