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4 years ago

Anyone know how to do this?

Mathematics

1 answer:

suter [353]4 years ago

7 0

Answer:

Step-by-step explanation:

Because A isn' at all right and B, and C equal the same but D = 36 So the sides are 18 each side.

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How to make the smallest and greatest 8 digit number by repeating digits 9,4,1,5,2,8,0

Dafna11 [192]

The greatest would be 99,999,999 and the smallest would be 10,000,000
Or if you can't repeat, the greatest would be 98,542,100 and the smallest would be 10,024,589.

5 0

3 years ago

9. Combine the radical expression, if possible.

Anastaziya [24]

Answer:

we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

Hence, the last option i.e. $23\sqrt{5}$ is correct.

Step-by-step explanation:

Given the expression

$3\sqrt{125}+4\sqrt{20}$

Combining the radical expressions

$3\sqrt{125}+4\sqrt{20}$

let us first solve

$3\sqrt{125}$

$=3\sqrt{5^3}$

$=3\sqrt{5^2\cdot \:5}$

Apply radical rule: $\sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0$

$=3\sqrt{5^2}\sqrt{5}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \:a\ge 0$

$=3\cdot \:5\sqrt{5}$

$=15\sqrt{5}$

Thus,

$3\sqrt{125}=15\sqrt{5}$

similarly solving

$4\sqrt{20}$

$=4\sqrt{2^2\cdot \:5}$

Apply radical rule: $\sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0$

$=4\sqrt{2^2}\sqrt{5}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \:a\ge 0$

$=4\cdot \:2\sqrt{5}$

$=8\sqrt{5}$

Thus,

$4\sqrt{20}=8\sqrt{5}$

so we get

$3\sqrt{125}=15\sqrt{5}$

$4\sqrt{20}=8\sqrt{5}$

so the expression becomes

$3\sqrt{125}+4\sqrt{20}=15\sqrt{5}+8\sqrt{5}$ ∵ $3\sqrt{125}=15\sqrt{5}$ , $4\sqrt{20}=8\sqrt{5}$

$=23\sqrt{5}$ ∵ $15\sqrt{5}+8\sqrt{5}=23\sqrt{5}$

Therefore, we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

Hence, the last option i.e. $23\sqrt{5}$ is correct.

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3 years ago

Match the y-coordinate with the given x-coordinate for the equation y = log2x.

In-s [12.5K]

Step-by-step explanation:

y = log2 x

Convert to exponential form

x = 2^y

when x = 8 , 8 = 2^y so y = 3

x = 4 , 4 = 2^y so y = 2

the other values are found in the same fashion.

x = 2 , y = 1

x = 1 y = 0

x = 1/2, y = -1

5 0

4 years ago

Read 2 more answers

In the diagram below, line MN is a perpendicular bisector. Which of the following is true?

natali 33 [55]

Answer:

MT is congruent to MS

Step-by-step explanation:

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3 years ago

Choose the factored form of the given equation.

STatiana [176]

Heyyy, the answer is C

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3 years ago