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3 years ago

What is the approximate circumference of a circle with a radius of 40 inches? Use π ≈ 3.14.

Mathematics

1 answer:

tatiyna3 years ago

3 0

The answer will be B.251.2
c=2πr

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Help me find answer to this

Debora [2.8K]

Answer:

$\angle B=41.81^\circ$

Step-by-step explanation:

<u>Trigonometric Ratios</u>

The ratios of the sides of a right triangle are called trigonometric ratios.

The longest side of the triangle is called the hypotenuse and the other two sides are the legs.

The sine ratio relates the opposite side of an angle of the triangle with the hypotenuse:

$\displaystyle \sin B=\frac{\text{opposite leg}}{\text{hypotenuse}}$

Here, the opposite leg to angle B is the side CA=2, and the hypotenuse is the side AB=3, thus:

$\displaystyle \sin \angle B=\frac{2}{3}=0.667$

Calculating the inverse sine function:

$\angle B=\arcsin (0.667)$

$\boxed{\angle B=41.81^\circ}$

5 0

2 years ago

The graph of a function is f(x)=3√x.

suter [353]

Answer:

F(0.75)= 3/2 sq. root 3

F(9)= 9

F(7)= 3 sq. root 7

b) x= +-1

x=+-4

x= +- 49/9

3 0

2 years ago

Put these numbers from least to greatest value.<br> 22/7 , square root of 3, 16/4, square root of 5

Crank

From least to greatest is square root of 3, square root of 5, 22/7 , 16/4
hope it help

8 0

2 years ago

Draw a line from each rectangular prism to its matching group of face shapes

IrinaK [193]

Can you put more information into this question

6 0

3 years ago

Read 2 more answers

Sabrina rides her bike 2 miles to school each day she leaves her house 7:30 and arrives at 7:50 What is Sabrina's average speed

MakcuM [25]

6 mph.

To find this, create a ratio.

2/20 = x/60

This will allow you to compare here time of twenty minutes to an hour in the same context.

Multiply 2 by 60 and divide by 20 to get the answer of 6 mph.

Thus, Sabrina's average speed in miles per hour is six miles per hour.

Hope this helps!

7 0

3 years ago