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3 years ago

What is the value of x?

Mathematics

1 answer:

Over [174]3 years ago

4 0

Answer:

c-12

Step-by-step explanation:

Pythagoras theorem states that a²+b²=c²

144+b²=c²

b²=c²-144

b=c-12

b=x

x=c-12

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4 years ago

A car travel 140 miles in 3 hours (with a constant speed). How far can it travel in 7 hours (with the same speed)?

soldier1979 [14.2K]

Answer:

326.666miles

Step-by-step explanation:

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3 years ago

A 30 foot ladder needs to reach 18 feet high against a building. What would the approximate angle of elevation be from the groun

yaroslaw [1]

Answer: The angle of elevation would be 36.87 degrees (approximately)

Step-by-step explanation: Please refer to the attached diagram for details

The 30-foot ladder reaches a point in the building which is point A. The height at which the ladder touches the building is 18 feet (that is, the height of the building, line AC. The angle of elevation from the ground is at angle B, the angle which the ladder forms with the ground.

So we have a right angled triangle ABC, with two sides and a reference angle B. To find angle B, we shall apply the trigonometric ratio;

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SinB = 18/30

SinB = 0.6

By use of a calculator or table of values

B = 36.8698

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3 years ago

Your dog eats 7/8 lb of dog food in 4 meals how much does your dog eat per meal

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