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3 years ago

9

I am having trouble understanding square roots . help please

" id="TexFormula1" title=" \sqrt{81.49 \\ " alt=" \sqrt{81.49 \\ " align="absmiddle" class="latex-formula">

1 answer:

postnew [5]3 years ago

5 0

I'm going to assume that's a multiplication not a decimal point.

$\sqrt{81 \cdot 49} = \sqrt{9 \cdot 9 \cdot 7 \cdot 7} = \sqrt{63 \cdot 63} = 63$

Answer: 63

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2 years ago

Which answer is correct

andre [41]

Hello from MrBillDoesMath!

Answer:

The first choice, Pi + (-Pi) = 0

Discussion:

Pi is an irrational number. Saying the irrational numbers <u>are</u> closed under addition means if we add two irrational numbers we will get another irrational number. In our case, Pi + (-Pi) = 0, which is correct, BUT 0 is a <u>rational </u>number. This shows the set of irrational numbers is NOT closed under addition.

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3 years ago

Given that lines a and b are parallel, what angles formed on line b when cut by the transversal are congruent with ∠2?

Kruka [31]

Answer:

The angles formed on line b when cut by the transversal are congruent with ∠2 are $\angle{6}\text{ and }\angle{7}$

Step-by-step explanation:

Consider the provided information.

If transversal line crossed by two parallel lines, then, the corresponding angles and alternate angles are equal .

The angles on the same corners are called corresponding angle.

Alternate Angles: Angles that are in opposite positions relative to a transversal intersecting two lines.

∠2 and ∠6 are corresponding angles

Therefore, ∠2 = ∠6

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Hence, the angles formed on line b when cut by the transversal are congruent with ∠2 are $\angle{6}\text{ and }\angle{7}$

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2 years ago

Given a polynomial f(x), if (x + 7) is a factor, what else must be true? f(0)=7 f(0)=-7 f(7)=0 f(-7)=0

Nataly [62]

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Because that makes the (x+7) factor equal zero and any other factor multiplied by zero also results in zero.

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2 years ago

Read 2 more answers

Help please 878777056586

Yuliya22 [10]

Answer:

The answer is 3

Step-by-step explanation:

Because 4x6=24

2x2x2=8

24 divided by 8=3

Hope this helped and have a great day!

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2 years ago