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3 years ago

The circumference of a circle is 6.4mm.

Mathematics

1 answer:

Sati [7]3 years ago

5 0

Answer: 2.04

Step-by-step explanation:

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Please I really do need ur help. I have to get my grades up4 5/9 is the same as the sum of 2 1/3 and 5/6 times a number.

Tems11 [23]

Answer:

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Step-by-step explanation:

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3 0

3 years ago

Which sequence of transformations maps triangle PQR onto its image triangle P'Q'R'

erica [24]

Answer:

Reflect, Translate, Dilate

Step-by-step explanation:

1. Reflect across the y-axis

2. Translate the triangle (x + 1, y + 1)

3. Dilate PQR by: $\frac{3}{2}$

8 0

3 years ago

The perimeter of a semi circle is 5.14 km. What is the semi circles diameter.

White raven [17]

Diameter of semicircle is equal to 2 km.

<h3>Explanation:</h3>

Given: Perimeter of semicircle = P = 5.14 km

d=?

Perimeter of semicircle is given by

$P = (\pi \times r ) + d\\5.14 = (\pi \times r ) + d\\\\Since \ d=2r; \ r=\frac{d}{2} \\5.14 = (\pi \times \frac{d}{2}) + d\\$

Simplifying the above equation

$5.14 = ( \frac{(\pi \times d) + 2d}{2}) \\\\5.14 \times 2 = d(\pi +2)\\\\d=\frac{5.14 \times 2}{\pi +2 }\\$

As value of pi = 3.14, equation becomes

$d=\frac{5.14 \times 2}{\ 3.14 +2} = \frac{10.28}{5.14} =2 \ km$

Diameter of semicircle is equal to 2 km.

6 0

4 years ago

A circle has radius 50 cm. Which of these is closest to its area?

trapecia [35]

Answer:

C) 7854 cm²

Step-by-step explanation:

The formula for the area of a circle is A = πr²

Now just plug in the numbers

A = π (50²)

A = 2500π

Let's say pi is 3.14

A = 2500(3.14)

A ≈ 7850

The closest answer to this answer is C: 7854

6 0

4 years ago

7. what is the graph of the inequality in the coordinate plane? <br><br> x>=1

sasho [114]

Because x is greater than, or equal to one, your graph would be a solid vertical line, along the 1 value. The right side of this line would be shaded, because your inequality includes everything to the right of this line.

4 0

4 years ago