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Nuetrik [128]
3 years ago
7

Solve four square root of six plus eight square root of four and explain whether the answer is rational or irrational.

Mathematics
1 answer:
Inga [223]3 years ago
7 0

Answer:

4\sqrt{6}+16

Step-by-step explanation:

Given the expression: 4\sqrt{6}+8\sqrt{4}

\sqrt{4}=2\\$Therefore, \\4\sqrt{6}+8\sqrt{4}  =4\sqrt{6}+8*2\\  =16+4\sqrt{6}

We can re-write the answer as:

4\sqrt{6}+16

The answer is irrational because the sum of a rational number and irrational number is an irrational number.

<u>The correct option is B.</u>

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Please help on two math questions. I don’t understand how to do them.
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In the first case, you've highlighted everything before -2 (full dot, thus included), and everything after 1 (empty dot, excluded). So, the set would be

x\leq -2 \lor\ x>1

or, in interval notation,

(-\infty,-2]\cup (1,\infty)

In the second case, you are looking for all numbers between -3 and 5. This interval is symmetric with respect to 1: you're considering all numbers that are at most 4 units away from 1, both to the left and to the right.

This means that the difference between your numbers at 1 must be at most 4, which is modelled by

|x-1|\leq 4

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3 0
2 years ago
To solve the system of equations by elimination, what could you multiply each equation by to cancel out the x-variable?A:6x-3y=-
Novay_Z [31]

Answer:

Step-by-step explanation:

You could multiply all of equation A by 1/6 and all of equation b by -1/4 to get

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8 0
2 years ago
Find the volume of the composite solid. Round your answer to the nearest tenth.​
amm1812

Answer:

Volume of the Figure =825.38m^3

Step-by-step explanation:

Volume of the figure = Volume of the Upper cone+Volume of the lower cone

Volume of a cone = \pi *r^2*\frac{h}{3}

Volume of the Upper Cone with  

height=12m

radius=6m

                       3.14*6*6*\frac{12}{3}

                        =3.14*6*6*4\\\\=3.14*36*4\\\\=3.14*144\\\\=147.14m^3

Volume of the Lower cone with radius=6m and height=18m

                            =3.14*6*6*\frac{18}{3} \\\\=3.14*6*6*6\\\\=3.14*36*6\\\\=3.14*216\\\\=678.24m^3

Volume of the Whole Figure =   147.14+678.24

Volume of the Figure  =825.38m^3

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3 years ago
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WARRIOR [948]

Answer:

true

Step-by-step explanation:

<u>NO MARK ME BRAINLIEST PLZ</u>

5 0
3 years ago
Help plz its confusing
DedPeter [7]
Nothing ;) Bc i don’t know hahahaha banana
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