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3 years ago

6.8 dollars. How do you write the decimal 6.8 when it refers ti money

Mathematics

2 answers:

iragen [17]3 years ago

8 0

It would be $6.80 you automatically add a zero at the end if your using money.

Rainbow [258]3 years ago

7 0

$ 6.80.

hope that helped

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the graph of liner function f passes through the point (1,-9) ad has a slope of -3 what is the zero of f

Lostsunrise [7]

Answer:

answer 4 im pretty sure

Step-by-step explanation:

i did da math

8 0

2 years ago

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snow_lady [41]

Answer:

A. The area is $78.54m^2$

B. She needs to cover 1661.9 square feet of tiles for the base of the swimming pool

Step-by-step explanation:

Question A:

Let us assume that the leash is pegged to the ground using a stake. as a result, the dog can move around the stake. The path that the motion of the dog would trace is a circle, and the radius of the circle will be the length of the leash.

Since we know this, we can easily find the area of the circle using $\pi r^2$

Area of the circle = $\pi \times 5 \times 5 = 78.54m^2$

Question B

Dulce wants to cover the whole surface area of the floor of the circular swimming pool with tiles.

We already know that the swimming pool is circular, hence, the surface area of the base of the swimming pool will be the same as the area of a circle, with the same radius.

The area of the circle can be calculated using $\pi r^2$

Area of circle = $\pi \times 23 \times 23 = 1661.9ft^2$

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2 years ago

What is The Greatest Common Factor of 21 and 63?

Ksenya-84 [330]

It should be 7. No bigger number can go into either.

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2 years ago

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ALGEBRA NATION Question 5 of 10 < Previous Question Next Question > Rewrite the expression below. -2a(a + b – 5) + 3(-5a +

Ierofanga [76]

–2a² + 4ab – 5a – 2b + b²

Solution:

Given data:

–2a(a + b – 5) + 3(–5a + 2b) + b(6a + b – 8)

<u>To solve this expression:</u>

Multiply each number or variable into the bracket.

–2a(a + b – 5) + 3(–5a + 2b) + b(6a + b – 8)

= –2a² – 2ab + 10a – 15a + 6b + 6ab + b² – 8b

Arrange like terms together.

= –2a² – 2ab + 6ab + 10a – 15a + 6b – 8b + b²

= –2a² + 4ab – 5a – 2b + b²

Hence the solution is –2a² + 4ab – 5a – 2b + b².

8 0

2 years ago

Write each expression in simplest form 1. 5x+4+9x, 2. 2+3d+d, 3. -3r+7-^-3r-^-12

Finger [1]

1. 14x+4

2. 2+4d

3. not sure what the question wants..not understanding 7-^-3r

4 0

3 years ago