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olga2289 [7]
3 years ago
6

What expression is equivalent to 13-(-21)?

Mathematics
2 answers:
Naddik [55]3 years ago
5 0

Answer:

34

Step-by-step explanation:

13-(-21) = 13 + 21 = 34

Maru [420]3 years ago
4 0

Answer:

34

Step-by-step explanation:

13 - ( - 12 ) given

13 + 12 distribute the invisible -1 and - 12 and add 13 + 12

34 answer

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ehidna [41]
Base angles and distance
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3 years ago
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Rewrite this radicand as two factors, one of which is a perfect square.
seropon [69]

Answer:

2 \sqrt{15}

Step-by-step explanation:

1) rewrite 60 as it's prime factors.

\sqrt{2 \times 2 \times 3 \times } 5

2) group the smae prime factors into pairs.

\sqrt{(2 \times 2)}  \times 3 \times 5

3) Rewrite each pair in exponent form.

\sqrt{ {2}^{2} \times 3 \times 5 }

4) use this role:

\sqrt{ {x}^{2} }  = x

2 \sqrt{3 \times 5}

5) Simplify.

4 \sqrt{15}

So, therefor, the answer is option 1.

5 0
3 years ago
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Which of the following is an equivalent expression to the expression a1/3 / a1/4
mixas84 [53]

Answer:

Option A :- \sf {a}^{\frac{1}{12}}

Step-by-step explanation:

\hookrightarrow \sf \:  \frac{ {a}^{ \frac{1}{3} } }{ {a}^{ \frac{1}{4} } }

Simplify the expression

\hookrightarrow \sf \:  {a}^{ \frac{1}{3} -  \frac{1}{4}  }

Transform the Expression

\hookrightarrow \sf \:  {a}^{ \frac{4 - 3}{12}  }

Calculate

\hookrightarrow \sf {a}^{\frac{1}{12}}

4 0
2 years ago
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A sales person receives a 3% commission on sales. The sales person receives $180 in commission. What is the amount of sales
alexira [117]
Her is your answer 3% of the sales is $180

If the sales is called 's' we can write an equation to model the statement 3% of the sales is $180:



The amount of sales is $6,000.

Your final answer is $6,000 in sales.
3 0
3 years ago
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An urn contains 8 pink and 5 red balls. Six balls arerandomly drawn from the urn in succession, with replacement.That is, after
slega [8]

0.088

Step-by-step explanation:

The total number of balls in the urn is;

8 +  5 = 12

Because the pink balls are 8, then the probability of picking a pink ball from the urn is;

8/12

To get the probability that all 6 balls drawn from the urn are pink, we will use the AND probability rule of the mutually exclusive events which means we’ll multiply the probabilities of each of the six pink balls;

8/12 * 8/12 * 8/12 * 8/12 * 8/12 * 8/12

= 0.088

Learn More:

For more on probabilities check out;

brainly.com/question/11248705

brainly.com/question/1177537

#LearnWithBrainly

6 0
3 years ago
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