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Dominik [7]
3 years ago
6

Best gets brainly ,,,,,,,,,,,,,,,,,,,,

Mathematics
1 answer:
DochEvi [55]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

A

\sqrt[3]{27} = 3

Since 3 × 3 × 3 = 27

B

\sqrt{25} = ± 5

Since 5 × 5 = 25 and - 5 × - 5 = 25

C

\sqrt{81} = ± 9

Since 9 × 9 = 81 and - 9 × - 9 = 81

D

\sqrt[3]{1} = 1

Since 1 × 1 × 1 = 1

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A right triangle ABC with right angle at B and base BC is drawn. Length of AB is 12, length of BC is 11.5. A similar right trian
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Answer:

Option D is correct.

Length of PQ is 36 unit.

Explanation:

If the measures of two sides in one triangle are proportional to the corresponding sides in the another triangle and their including angles are congruent, then the triangles are similar.

Given: Right angle triangle ABC at B , Length of AB = 12 unit and length of BC = 11.5 unit and in right angle triangle PQR at Q , length of QR = 34.5 unit.

Also it is given that  Angle A is congruent to angle P and angle C is congruent to angle R.

To find the length of QR:

It is given that ΔABC and ΔPQR are Similar triangle

then, by the definition of similar triangle:

\frac{PQ}{AB} = \frac{QR}{BC}

Substitute the value of AB, QR and BC to solve for PQ;

\frac{PQ}{12}=\frac{34.5}{11.5} or

PQ = \frac{34.5 \times 12}{11.5}

On simplify:

PQ = 3 \times 12 = 36

Therefore, the length of side PQ is 36 units.





8 0
3 years ago
Read 2 more answers
WhT is the answer to -8(-4f-9)
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Answer:

32f+72

Step-by-step explanation:

Distribute the -8

7 0
3 years ago
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Cara has 25$ to buy dry pet food and treats for the animal shelter. A pound of dog food cost $2 and treats are $1 apiece. If she
alina1380 [7]
Let x be the number of treats bought
Let y be the pounds of food bought

25= 2y+x

Given that she has buys 9 pounds of dog food:

25= 2(9)+x
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With the money she has left over, she can buy 7 treats.

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5 0
3 years ago
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Step-by-step explanation:

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Answer:

(B)The expression (5n)(9-p) is the product

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Step-by-step explanation:

In the expression;

m+(5n)(9-p)-6-r^2

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