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1 year ago

Combine the radicals 4√7+3√28.

Mathematics

2 answers:

Ierofanga [76]1 year ago

8 0

Answer:

10√7

Step-by-step explanation:

To combine the radicals, you must have the same number under both radicands. Luckily, you can simplify one of the radicands. This is done by separating the radicand (√28) into its common factors (√4 x √7) and taking the square root of one of the factors (√4 = 2).

4√7 + 3√28 <---- Original expression

4√7 + 3(√4 x √7) <---- Expand √28

4√7 + (3 x 2)√7 <----- Take √4

4√7 + 6√7 <---- Multiply coefficients

10√7 <---- Add both terms

notka56 [123]1 year ago

6 0

Answer:

10√7

Step-by-step explanation:

$4 \sqrt{7} + 3 \times 2 \sqrt{7} \\ 4 \sqrt{7} + 6 \sqrt{7} \\ 10 \sqrt{7}$

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valkas [14]

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2 years ago

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Tresset [83]

Answer:

x - 3 > 10

There were more than

board games in Anne's cabinet to start.

Step-by-step explanation:

The variable x represents how many board games were in Anne's cabinet to start. Since she has already picked out 3 board games to bring, the expression x–3 represents how many board games are still in the cabinet.

And, since Anne has more than 10 board games still in her cabinet, x–3 must be greater than 10.

This inequality shows the relationship.

x–3>10

Now, solve for x.

x–3

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x–3+3

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2 years ago

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natima [27]

Answer:

I'm not 100% sure but I believe the answer is 27

because -48/-4=12

12+15=27

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2 years ago

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I need help on number three all the info is on the page so plz help me thanks

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