3 years ago

Hey i just wanted to try typing a question so whats 2+2?

Mathematics

1 answer:

zloy xaker [14]3 years ago

7 0

ummm...... 4 hahahahaha

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Which expression is equivalent to (81x4y16)12 for all positive values of x and y?<br> 40.5x4y16

IrinaVladis [17]

Answer:

$(81x^4y^{16})^{\frac{1}{2}} = 9 x^2 y^8$

Step-by-step explanation:

Given

$(81x^4y^{16})^{\frac{1}{2}}$

Required

Determine an equivalent expression

Express 81 as $9^2$

$(9^2x^4y^{16})^{\frac{1}{2}}$

Apply law of indices

$9^2^{\frac{1}{2}} * x^4^{\frac{1}{2}} * y^{16}^{\frac{1}{2}}$

$9^{\frac{2*1}{2}} * x^{\frac{4*1}{2}} * y^{\frac{16*1}{2}}$

$9^{\frac{2}{2}} * x^{\frac{4}{2}} * y^{\frac{16}{2}}$

$9^1 * x^2 * y^8$

$9 * x^2 * y^8$

$9 x^2 y^8$

Hence:

$(81x^4y^{16})^{\frac{1}{2}} = 9 x^2 y^8$

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3 years ago

The sum of 5 times a number is 7

IRISSAK [1]

Answer:

5*x=7

The answer is made by division

x=7/5

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Step-by-step explanation:

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3 years ago

Outside a home there is a keypad that will open the garage if the correct four-digit code is entered.

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b: 1/210 is the probability of entering the correct code.

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3 years ago

What is the solution to the following equation? 5(2x − 12) + 21 = 2x + 41

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Step-by-step explanation:

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It falls between 3³ (27) and 4³ (64)...etc.

6 0

3 years ago

Hey i just wanted to try typing a question so whats 2+2?​

Hey i just wanted to try typing a question so whats 2+2?