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3 years ago

Using the formula C = 2, find the circumference of a circle with diameter of 20 inches. Round your answer to the nearest inch

Mathematics

2 answers:

Svetllana [295]3 years ago

8 0

Answer:

The circumference is approximately 314 inches.

Step-by-step explanation:

3.14 x r^2

3.14 x 10^2

3.14 x 100

Circumference: 314

Ivenika [448]3 years ago

4 0

Answer:62.8inches

Step-by-step explanation:

Diameter=20 inches

π=3.14

Circumference=π x diameter

Circumference=3.14 x 20

Circumference=62.8inches

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The number of cars sold weekly by a new automobile dealership grows according to a linear growth model. The first week the deale

Sladkaya [172]

Answer:

Recursive Formula, Pₙ=Pₙ₋₁+2

Explicit Formula, Uₙ=4+2n

12 cars

Step-by-step explanation:

In Week 1, the dealer sold six cars, P₀=6

In Week 2, the dealer sold 8 cars, P₁=8

The difference in car sales between the first and second week is 2.

Therefore, for the (n+1)th week, the Recursive Formula is Pₙ=Pₙ₋₁+2

This is an arithmetic progression where the:

First term, a=6

Common difference, d =2

The nth term of an A.P. is given by Uₙ=a+(n-1)d.

The Explicit Formula, Uₙ=6+2(n-1)

=6+2n-2=4+2n

In the fourth week, U₄=4+2(4)=4+8=12

12 cars will be sold in the fourth week

7 0

4 years ago

5/m-9 = 8/m+5 Solve the following proportions, while using cross multiplication.

slamgirl [31]

The answer is gonna be -3/14

3 0

3 years ago

A 30-foot guide wire is attached to the top of the tree and then staked into the ground 25 feet away from the base of the tree.

ladessa [460]

Answer:

16.6 feets .

Step-by-step explanation:

Length of wire = 30 feets

Distance between base of tree and ground = 25 feets

Height of tree, h

Using Pythagoras rule :

h² = 30² - 25²

h² = 900 - 625

h² = 275

h = sqrt(275)

h = 16.583

h = 16.6 feets

Height of tree is 16.6 feets

5 0

3 years ago

What L is alternate interior at L6? A. L3 B. L5 C. L1 D. L4

nikdorinn [45]

Answer:

Step-by-step explanation:

3 0

3 years ago

Find the value of x in the diagram below. Show your work.

sasho [114]

Answer:

x=35

Step-by-step explanation:

the litle square inside of the half circle means its the angle of 90

so just do like that:

90=x+(4x-85)

and u have the answer x=35

6 0

3 years ago