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Brrunno [24]
3 years ago
9

Find the area and the circumference of a circle with diameter 3 ft.

Mathematics
1 answer:
Zigmanuir [339]3 years ago
3 0

Step-by-step explanation:

circumference of a circle

2×pi×r

area of a circle

pi×r²

r (radius) = diameter/2 = 1.5ft

we shall assume pi to be 3.14

circumference is

2×3.14×1.5 = 3.14×3 = 9.42 ft

area is

3.14 × 1.5² = 3.14×2.25 = 7.065 ft²

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At the science fair, Valeria uses 8 fluid ounces of vinegar to make her volcano erupt. How many times can she make her volcano e
BabaBlast [244]

Answer:

Eruption will take place four times

Step-by-step explanation:

Here, we are told that 8 fluid ounce of vinegar made the volcano erupt.

Now we want to know the number of times she can make the volcano erupt using 1 quart of vinegar.

Mathematically, we need to know the number or amount of fluid ounces in 1 quart.

Mathematically;

there are 32 ounces in a quart

So the number of times the volcano eruption will take place using 1 quart vinegar will

be 32/8 = 4 times

6 0
3 years ago
What is the solution to the equation 4x + 2(x - 3) = 3x + x - 12? / A -3/B -1/C 1/D 3
stellarik [79]
Remember you can do anything to an equation as long asyou do it to both sides

4x+2(x-3)=3x+x-12
distribute and expand
4x+2x-6=4x-12
6x-6=4x-12
minus 4x both sides
2x-6=-12
add 6 both sides
2x=-6
divide by 2
x=-3

A is the answer
3 0
3 years ago
Given the graph of a line y=−x. Write an equation of a line which is parallel and goes through the point (−8,2)
Savatey [412]

Answer:

The parallel line would be y = -x - 6

Step-by-step explanation:

In order to find the parallel line, we must first start with the slope. The slope of parallel lines must be equal. The first line has a slope of -1. Using this and the new point in slope intercept form, we can solve for the intercept.

y = mx + b

2 = -1(-8) + b

2 = 8 + b

-6 = b

Now we can model the equation using that slope and the intercept.

y = -x - 6

5 0
3 years ago
Write algebraic expression<br> 17 less than the product of 3 and m
motikmotik
"17 less than" implies subtraction of the product of 3 and m, so the equation would be, if solving for x:
x=3m-17
4 0
4 years ago
Read 2 more answers
Which equation is y +5 = 1/3 (x - 9) in slope-intercept form
Alinara [238K]

Answer:

y=1/3x-8

Step-by-step explanation:

y+5=1/3(x-9)

y=1/3x-9/3-5

y=1/3x-3-5

y=1/3x-8

Please mark me as Brainliest if you're satisfied with the answer.

3 0
3 years ago
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