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Lapatulllka [165]
4 years ago
15

The area of a circle 220mm in diameter is approximately how many times greater than the area of a circle 30mm in diameter?

Mathematics
1 answer:
zmey [24]4 years ago
5 0
The first circle is approximately 44 times greater than the second cirle

Radius = 110 mm
110² = 10,000 mm² = Area

Radius = 15 mm
15² = 225 mm² = Area

Hope this helps!

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What number has 300 tenths and 7 thousandths?
Harrizon [31]
30.007

300/10=30
7/1000=.007

30+.007=30.007
8 0
3 years ago
Jose wants to build a rectangular kennel for his dog. His dad will let him use a spot in the corner of the yard that is 12 feet
Butoxors [25]
Hello!

We don't need to find the exact perimeter of the fencing, just an estimate.

We will round 12 ft 3 in to 12 ft, because it is closer to 12 ft than 13 ft.

We will also round 8 ft 11 in to 9 ft because there are 12 inches in a foot, which makes 9 ft closer.

The formula for perimeter of a rectangle is:

P = 2l × 2w

The length is about 12 feet and the width is about 9 feet.

Substitute the length and width:

P = 2(12) + 2(9)

Solve:

P = 24 + 18

P = 42

Jose will need about 42 feet of fencing.
8 0
3 years ago
In a 30-60-90 triangle, what is the length of the hypotenuse when the shorter leg is 5 cm?
zheka24 [161]

Shorter Leg=x

Hypotenuse=2x

Shorter Leg=5cm

Hypotenuse= 10cm

3 0
3 years ago
Given the equation y − 3 = 1/2 (x + 6) in point-slope form, identify the equation of the same line in standard form. )
Doss [256]

Answer:

a: x − 2y = −12

Step-by-step explanation:

the standard form of a line is is usually given as Ax + By = C, so just by deduction you can tell that the correct answer is a.

If you want to do the procedure it would be:

y − 3 = 1/2 (x + 6)

y − 3 = 1/2 x + 3

y - 1/2 x = 3 + 3

y - 1/2 x = 6

(y - 1/2 x = 6) * 2 to get rid of the fraction

2y - x = 12  rearrenge the terms

x - 2y = -12

4 0
3 years ago
Simplify 0.5 (-77.8-11)/ -4 show all your steps
Mekhanik [1.2K]

Answer:

11.1

Step-by-step explanation:

0.5(−77.8−11)/−4

=(0.5)(−88.8)/−4

=−44.4/−4

=11.1

3 0
3 years ago
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