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vladimir2022 [97]
3 years ago
9

Isaac is also designing a circular serving tray that he plans to engrave around the edge. The serving tray has an area of 3.14 s

quare feet. Using 3.14 for , what is the circumference of the serving tray rounded to the nearest hundredth?
Mathematics
1 answer:
raketka [301]3 years ago
3 0

Answer:

6.28 feet

Step-by-step explanation:

1.) Find the radius.

The area is given, and the formula for area of a circle is A = \pi r^{2}  Let's substitute.

3.14 = \pi r^{2}

Divide by pi on both sides

1 = r^{2}

Find the square root of r

1 = r

The radius is 1.

2.) Find the circumference.

C = 2\pi r

C = 2\pi (1)

Multiply 2 and 1

C = 2\pi

C ≈ 6.28

The circumference is approximately 6.28 feet.

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Ksju [112]

Answer:

domain is {4,5,6,7,8}, range is the other numbers in brackets

Step-by-step explanation:

6 0
3 years ago
A line passes through (4, 5) and (8, 9). Which equation best represents the line?
xxTIMURxx [149]

Answer:

that is the equation of the line, its slope is 1 and the y-intercept is 1 y = x + 1

Step-by-step explanation:

we can calculate the slope of this line passing through (4,5) and (8,9) like this:

m = (y2 - y1)/(x2 - x1)

m = (9 - 5)/(8 - 4)

m = 4/4

m = 1

so the slope is 1, and now we can use the equation of one point and the slope to write the line's equation:

y - y1 = m(x - x1)

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y = x + 1

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7 0
3 years ago
12 - 16 ÷(-4)<br><br> A. -1<br> B. 1<br> C. 8<br> D. 16
Naya [18.7K]

Answer:

D. 16

Step-by-step explanation:

Do the division first

-16 ÷ (-4) = 4 then do the sum

12 + 4 = 16

7 0
4 years ago
The cube of twice a number
raketka [301]

Answer:

The cube of twice a number.

Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.

Step-by-step explanation:

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3 years ago
What is the image point of (-6, 9) after a translation left 4 uints and down 1 unit?
Alex17521 [72]

Answer:

(-10,8)

Step-by-step explanation:

So our original point is (-6,9).

A translation of 4 units to the left means that the x-value would go left by 4. In other words, we subtract 4 to -6. We subtract because going to the left means that it's going to the negative direction.

A translation of down 1 unit means that the y-value would go down by 1. In other words, we subtract 1. Again, we subtract because going downwards means that it's going to the negative direction.

Therefore, the new point would be:

(-6-4,9-1)\\=(-10,8)

6 0
3 years ago
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