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dsp73
2 years ago
9

If two angles of a triangle have measures of 42° and 20°, what is the measure of the third angle?

Mathematics
1 answer:
dexar [7]2 years ago
3 0

The other angle would be 118°

The three angles of a triangle must add up to 180°.

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Danielle runs 1/5 of a mile in 4.5 minutes. if she continues at the same speed, how long will it take her to run two miles?
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(1/5) / 4.5 = 2 / m....1/5 mile to 4.5 minutes = 2 miles to m minutes
cross multiply
(1/5)(m) = (2)(4.5)
1/5m = 9
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coldgirl [10]

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D

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5 0
3 years ago
In triangle ABC shown find BC.
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Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?
postnew [5]
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We find the mean by adding all of the data points and dividing by the number of data points.  We will add the unknown value x and change the number we're dividing by to 7:

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Multiply both sides by 7:
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Subtract 1110 from both sides:
x = 45
7 0
3 years ago
Read 2 more answers
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