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kondor19780726 [428]
3 years ago
9

Can some one help me with this please

Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer:

In order to help with this problem, I need to see part a.

Step-by-step explanation:


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The answer is 9 as 36/4=9.

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13. A jeweller bought an engagement ring for €1200 and
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CP of ring = 1200

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Given triangle DEF where ∠D = (7b +1)∘, ∠E = (2b + 1)∘, and ∠F = ( b + 8)∘. What is the measure of ∠E?
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<h3>Answer:  35 (choice C)</h3>

=============================================

Explanation:

For any triangle, the three interior angles always add to 180.

D+E+F = 180

(7b+1) + (2b+1) + (b+8) = 180

(7b+2b+b) + (1+1+8) = 180

10b+10 = 180

10b = 180-10

10b = 170

b = 170/10

b = 17

Use this value of b to find the three angle measures

  • D = 7b+1 = 7*17+1 = 119+1 = 120
  • E = 2b+1 = 2*17+1 = 34+1 = 35 degrees
  • F = b+8 = 17+8 = 25

As a check,

D+E+F = 120+35+25 = 120+60 = 180

which helps confirm the correct answers.

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3 years ago
Henry can write 5 pages of his novel in 3 hours. How many pages can he read in 8 hours
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Answer:40 pages in 8 hours

Step-by-step explanation:

5 times 8 is 40 3 times five is 15

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Parallelograms are four sided figures that have two pairs of opposite, parallel sides. Quadrilateral ABCD
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Answer:

(A) It would have to lie on AB because DC would rotate halfway around M. B would lie on D and A would lie on C.

(B) AD would lie on the BC line. D would lie on B and A would lie on C.

(C) The Lines CD and AD would only intersect if one line had to rotate 180 degrees around M.

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