All categories

3 years ago

Find the area of the circle. Round your answer to the nearest hundredth 3in

Mathematics

1 answer:

FrozenT [24]3 years ago

4 0

Answer:

28.26 square inches

Step-by-step explanation:

Formula for area of a circle:

$A=\pi r^2$

Radius is 3.

$A= \pi (3)^2\\A=\pi 9$

Use 3.14 for pi:

$A = 3.14 * 9 = 28.26\\A=28.26$

The area should be 28.26 square inches.

You might be interested in

A dime is 1.25 mm thick. How many meters high would a stack of dimes worth $50 be?

Lady_Fox [76]

The answer is 0.625 because 1 mm=0.001 meter.
Steps:
10x50=500
500x1.25=625
Convert from mm to meters.

6 0

3 years ago

Read 2 more answers

If f(x) = 2x2 − 10, find f(5). 90 10 7.5 40

MatroZZZ [7]

F(x)= 2x² -10
f(5)= 2(5)²-10

f(5)= 40

5 0

2 years ago

Read 2 more answers

Identify whether each set of ordered pairs is a function or is not a function. Function Not a Function

Anna35 [415]

Answer:

1. Function

2. Function

3. Function

4. Not a Function

5. Not a Function

Step-by-step explanation:

Hope it helps:)

7 0

2 years ago

Find the lengths of the missing side . Simplify all radicals !!! help mee!!!!!!

larisa86 [58]

Answer:

$e = 13\sqrt{2}$

$f = 13\sqrt{2}$

Step-by-step explanation:

The ∆ given is an isosceles ∆ with a right angle measuring 90°, and two congruent angles measuring 45° each.

Using trigonometric ratio formula, we can find the lengths of the missing side as shown below:

Finding e:

$sin(\theta) = \frac{opp}{hyp}$

$sin(\theta) = sin(45) = \frac{\sqrt{2}}{2}$

hyp = 26

opp = e = ?

Plug in the values into the formula

$\frac{\sqrt{2}}{2} = \frac{e}{26}$

Multiply both sides by 26

$\frac{\sqrt{2}}{2}*26 = \frac{e}{26}*26$

$\frac{\sqrt{2}}{2}*26 = e$

$\frac{\sqrt{2}}{1}*13 = e$

$13\sqrt{2} = e$

$e = 13\sqrt{2}$

Since side e is of the same length with side f, therefore, the length of side f = $13\sqrt{2}$

3 0

2 years ago

Write the equation of the line in slope intercept form for the lone with a slope of 1/3 and a y intercept of (0,4)

Anastasy [175]

Answer:

$y=\frac{1}{3} x+4$

Step-by-step explanation:

Slope-intercept from is:

$y=mx+b$

m is the slope and b is the y-intercept. Insert slope:

$y=\frac{1}{3}x+b$

The y-intercept is at point (0,4). The y-intercept is when x equals 0, so take the value of y and insert into the equation:

$y=\frac{1}{3} x+4$

Finito.

7 0

2 years ago