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g100num [7]
3 years ago
5

Round the number 385 to the nearest 10

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
5 0

Answer: 390

Step-by-step explanation:

jeyben [28]3 years ago
4 0

Answer:

340

Step-by-step explanation:

with every number 0-4 stays with the 10's group that it was in to begin with. and numbers past that go to the next 10's group. so for this question you have 385. you have to move the 5 to a 10. therefor you have 390

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What is the measure of the indicated angle?<br> A 180°<br> B 110°<br> C 70°<br> D 90°
ikadub [295]

Answer:

D. 70°

Step-by-step explanation:

the sum of the unknown angle and 110° is 180 °

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x+110 = 180

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2 years ago
A sample of 75 concrete blocks had a mean mass of 38.3 kg with a standard deviation of 0.6 kg.
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8 0
3 years ago
Can someone please help me?
yaroslaw [1]
3√24= 3√2^2*6 = 3*2√6 = 6√6

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4 0
3 years ago
An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30o angle. To
melamori03 [73]

Answer:

a person travel 50 ft from the bottom to the top of the escalator

Step-by-step explanation:

An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30 degree angle

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opposite to 30 degree angle is 25 feet. to find the distance from the bottom to the top of the escalator we find the hypotenuse

let x be the hypotenuse

sin(theta)=\frac{opposite}{hypotenuse}

sin(30)=\frac{25}{x}\\x sin(30)= 25\\x=\frac{25}{sin(30)} \\x=50\\

a person travel 50 ft from the bottom to the top of the escalator

6 0
3 years ago
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