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V125BC [204]
3 years ago
14

Which equation can be used to solve for x in the following diagram? (2x + 15)° and 65°

Mathematics
1 answer:
givi [52]3 years ago
8 0

D

Step-by-step explanation:

Angles on a straight line are supplementary (they sum up to 180°)

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I honestly need help on this...I tried to work it out but I just don’t know where to start...
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

1) The sum of angles on a straight line is 180 degrees. Therefore

75 + a + 70 = 180

145 + a = 180

a = 180 - 145 = 35 degrees

2) Sum of the angles in a triangle is 180 degrees. Therefore,

a + b + 95 = 180

35 + b + 95 = 180

130 + b = 180

b = 180 - 130 = 50 degrees

3) c + 95 = 180 degrees (sum of angles on a straight line).

c = 180 - 95 = 85 degrees

4) 70 + c + d = 180 degrees

70 + 85 + d = 180

155 + d = 180

d = 180 - 155 = 25 degrees

5) e = 75 degrees

6) f + e + 75 = 180 degrees

f + 75 + 75 = 180

f + 150 = 180

f = 180 - 150 = 30 degrees

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3 years ago
If the shaded sector is 75m what would the area be of the circle? A. 30 B. 36 C.144 D. 108
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The correct answer is letter B
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2 years ago
The made 9 pounds of fudge . The fudge was separated into 3/4 pound blocks . They sell each block for $6.50 .if they sell all th
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3 0
3 years ago
Greatest common factor of 7 and 49
valina [46]

Answer:

7

Step-by-step explanation:

The greatest common factor or GCF of 7 and 49 is 7 because 7 is the highest number that can go into both numbers 7 and 49. No other number can go into those numbers except 7.

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Step-by-step explanation:

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