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olga_2 [115]
2 years ago
13

In 2014, the Centers for Disease Control and Prevention reported the average human life span in the United States as

Mathematics
1 answer:
kakasveta [241]2 years ago
7 0

Answer:

7.8

Step-by-step explanation:

subtract 85 - 77.2

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What is 0.65 as a fraction in simplest form?
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8 0
3 years ago
A room 9m wide has a span roof which slopes at 34 degrees on one side and 44 degrees on the other. Find the length of the roof s
ivann1987 [24]

Answer:

Slope sides are;

5.07 m and 6.39 m

Step-by-step explanation:

I've attached a drawn diagram showing a triangle representing the roof slopes and I have attached it.

From the image attached, the missing angle is θ.

From sum of angles in a triangle,

θ = 180 - (44 + 34)

θ = 102°

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4 0
3 years ago
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