All categories

3 years ago

PLEASE HELP QUICKLY!!

Mathematics

1 answer:

svp [43]3 years ago

3 0

Answer:

3π

Step-by-step explanation:

To find the area of a sector, use this formula: (α/360) × πr²

α & r will be substituted by 120 and 3 respectively.

(120/360) × π(3²)

Step 1: 120/360 is equivalent to 1/3.

1/3 * π(3²)

Step 2: Square 3 to get 9.

1/3 * π(9)

Step 3: Multiply 9 by π to get 9π

1/3 * 9π

Step 4: Multiply 1/3 by 9π

3π

The area of sector DEF in terms of π is 3π.

You might be interested in

Kansas has an area of 82,277 square miles.

dezoksy [38]

Answer:

75806

Step-by-step explanation:

82,277-6,471=75806

4 0

3 years ago

Read 2 more answers

a television that usually sells for $499 is on sale for 10% off. what is the discount of the television?

ICE Princess25 [194]

Answer:

The discount is $49.90 the final price is $449.10

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Which statement is not always true?

Fed [463]

Statement #3: The product of two irrational numbers is not always irrational.

If you multiply √3 and 1/√3, both irrational numbers that are inverses of each other, you end up getting 1, which is rational.

4 0

3 years ago

Robert mixed 113 liters of blue paint with 123 liters of red paint to make 3 liters of purple paint. To make a new batch of purp

MAVERICK [17]

Answer:

$Blue =1\frac{3}{5}$

Step-by-step explanation:

Given

$Blue = 1\frac{1}{3}$

$Red = 1\frac{2}{3}$

Required

Determine the amount of blue paint when Red = 2

To do this, we make use of the following equivalent ratios

$Ratio = Blue : Red$

When $Blue = 1\frac{1}{3}$ and $Red = 1\frac{2}{3}$

$Ratio = 1\frac{1}{3} : 1\frac{2}{3}$

When Red = 2

$Ratio = Blue : 2$

Equate both ratios

$Blue : 2 = 1\frac{1}{3} : 1\frac{2}{3}$

Convert to division

$\frac{Blue}{2} =1\frac{1}{3} / 1\frac{2}{3}$

Convert fractions to improper fraction

$\frac{Blue}{2} =\frac{4}{3} / \frac{5}{3}$

$\frac{Blue}{2} =\frac{4}{3} * \frac{3}{5}$

$\frac{Blue}{2} =\frac{4}{5}$

Make Blue the subject

$Blue =\frac{4}{5}*2$

$Blue =\frac{8}{5}$

$Blue =1\frac{3}{5}$

4 0

3 years ago

Suppose that 5% of the general population has a disease and the test for the disease is accurate 80% of the time. What is the pr

Aleonysh [2.5K]

Answer:

Step-by-step explanation:

Say we are testing 100 people

we test 100 times

80 of the 100 tests result in 5 people having the disease.

so 5 people of 80 of 100 test have this disease

therefore, 5/80/100

.065

6 0

3 years ago

Read 2 more answers