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3 years ago

If a circle has a diameter of 4 inches, what is the area?

2 answers:

7 0

The formula for area of a circle is π × radius^2, and to find the radius we can just divided the diameter by 2 and get 2 inches. You don't need to use a calculator here, because π is approximately equal to 3.14, so 3.14 × 2^2 = 12.56, which is answer B. I hope this helps!

Dafna11 [192]3 years ago

6 0

Answer:

50.24

Step-by-step explanation:

i got it wrong on study Island

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Davens pays $50 each week for guitar lessons. How much will he pay after 3/4 of a year

Alja [10]

You’ve got to work out 3/4 of the year first, that’s 75%, after you need to work out how many weeks are in those days so you divide it by 7 then divide that answer by $50 and hopefully you get your answer. hope this helps

5 0

2 years ago

Read 2 more answers

Tristán wants to build a square garden in his backyard if the garden is going to be 64 ft2 how many feet of material will he nee

Alex777 [14]

Answer:

Tristan will need 32 feet of material for the perimeter of the garden.

Step-by-step explanation:

Given that

Area of square garden = A = 64 square feet

Perimeter = P = ?

We know that for calculation of perimeter, length of side of square is required which is not directly given in the question. The area will be used to calculate length of side and then length will be used to calculate the perimeter.

So,

$Area = A = s^2$

s is for side

Putting the value of area

$64 = a^2$

Taking square root on both sides

$\sqrt{s^2} = \sqrt{64}\\s = 8\ feet$

The length of side is 8 feet.

Perimeter will be:

$P = 4*s\\P = 4*8\\P = 32\ feet$

Hence,

Tristan will need 32 feet of material for the perimeter of the garden.

3 0

2 years ago

If the first three Fibonacci numbers are given as x, = 1, X2 = 1 and x3 = 2,

Murljashka [212]

Answer:

x8 = 21 and x9 = 34

Step-by-step explanation:

The Fibonacci numbers are

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89,...

7 0

2 years ago

What is the value of (-1/2)-4?

kykrilka [37]

The answer would be A. -16

4 0

2 years ago

F(x) = |3x-4| give the domain and range

gulaghasi [49]

Answer:

Domain: -∞≤x≤∞

Range: 0≤F(x)≤∞

Step-by-step explanation:

The x variable can take any value.

In the case of F(x), the function only can take positive values, due to the absolute value function, and the function does not have any other restriction.

3 0

2 years ago