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3 years ago

The diameter of a circle is 4 cm. Which equation can be used to find its circumference?

Mathematics

2 answers:

Romashka-Z-Leto [24]3 years ago

7 0

Pi times 4 is the answer because C=pi * d

Leya [2.2K]3 years ago

5 0

Answer:

pi times 4

Step-by-step explanation:

Circumference: pi times diameter (pi)(d) or pi times 2 times the radius (pi)(2r)

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A parallelogram is shown below: A B A 2 foot D с 3 feet Part A: What is the area of the parallelogram? Show your work. (5 points

docker41 [41]

9514 1404 393

Answer:

Part A: 2 ft²

Part B: draw a diagonal (AC, for example); 1 ft²

Step-by-step explanation:

Part A:

The area of a parallelogram is given by the formula ...

A = bh

where 'b' is the length of the base, and 'h' is the perpendicular distance between the bases.

Using the numbers shown on the diagram, the area is ...

A = (3 ft)(2/3 ft) = 3·2/3 ft²

A = 2 ft² . . . . . area of the parallelogram

Part B:

Typically, a polygon is partitioned into triangles by drawing diagonals from one of the vertices. It does not matter which one. (In a quadrilateral, only one diagonal can be drawn from any given vertex.) Here, the "base" of each triangle is the same as the base of the parallelogram: 3 feet. The "height" of each triangle is the same as the height of the parallelogram: 2/3 ft.

The area of a triangle is given by the formula ...

A = 1/2bh

A = 1/2(3 ft)(2/3 ft) = (1/2)(3)(2/3) ft²

A = 1 ft² . . . . . . . . area of each triangle

_____

Additional comment

It should be no surprise that the area of each of the two congruent triangles is 1/2 the area of the parallelogram.

7 0

3 years ago

Find the interest due on $250 at 11% for 2 years. A.) $55.00 B.) $57.00 C.) $54.00

BlackZzzverrR [31]

Answer:

the answer is a

Step-by-step explanation:

because 250 x 11% equals 27.5 and 27.5 x 2 equals 55. hope this helps

6 0

4 years ago

Each of the statements contains a blunder. In each case, choose the statement that correctly explains the blunder. (a) "There is

Vikki [24]

Answer:

Correlation requires both variables to be quantitative.

Step-by-step explanation:

The correlation coefficient measures the strength of relationship between two quantitative variables. In the given scenario correlation between sex of American workers and their income is computed and indicated that there is a high correlation between them. The sex of American worker is a categorical variable or a qualitative variable while income of American worker is a quantitative variable. The correlation between a quantitative variable and a qualitative variable can't be computed. So, the statement explains the blunder in the given scenario is "Correlation requires both variables to be quantitative".

4 0

4 years ago

The fish population of Lake Collins is decreasing at a rate of 5% per year. In 2000 there were about

olchik [2.2K]

Answer:

Number of fish in 2006 = 845 fishes (Approx.)

Step-by-step explanation:

Given;

Number of fish in 2000 = 1,150 fishes

Decreasing rate = 5% per year

Find:

Number of fish in 2006

Computation:

Exponential decay function:

F = P[1-r]ⁿ

Number of year = 2006 - 2000

Number of year = 6 year

Number of fish in 2006 = 1,150[1-5%]⁶

Number of fish in 2006 = 1,150[1-0.05]⁶

Number of fish in 2006 = 1,150[0.95]⁶

Number of fish in 2006 = 1,150[0.735]

Number of fish in 2006 = 845.25

Number of fish in 2006 = 845 fishes (Approx.)

4 0

3 years ago

Calculate the area of each plot. Lawn Paving Vegetable

uysha [10]

I hope this helps you

7 0

3 years ago