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madam [21]
3 years ago
15

25 PTS! Find the area of the shaded regions:

Mathematics
2 answers:
jonny [76]3 years ago
7 0

Answer:

56.52 cm²

Step-by-step explanation:

3.14*9²*80°/360°= 56.52 cm²

Leokris [45]3 years ago
5 0

Answer:

18 π

Step-by-step explanation:

area of the whole circle = 81 pi

80/360= 2/9

So 2/9 of the area 81 pi is 18 pi

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Please help me solve this #algebra #algebra1
Vesna [10]

Answer:

h = 430

Step-by-step explanation:

1290 = h/10 + h/5             Make h/5 into something that is something / 10

1290 = h/10 + 2h/(5*2)     Clean up the brackets.

1290 = h/10 + 2h/10         Add the right.

1290 = 3h/10                    Multiply both sides by 10

1290*10 = 10(3h/10)          

12900 = 3h                       Divide both sides by 3

h = 430

3 0
3 years ago
Theorem: The segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length.
Elina [12.6K]

Answer:

Step-by-step explanation:

Statement Reason:

1) The coordinates of point D are (4, 5) and coordinates of point E are (5, 3) By the midpoint formula

2) Length of segment DE is Square root of 5 and length of segment AC is 2 multiplied by the square root of 5 By the distance formula

3) Segment DE is half the length of segment AC By substitution

4) Slope of segment DE is -2 and slope of segment AC is -2 by the slope formula

5) Segment DE is parallel to segment AC Slopes of parallel lines are equal...

4 0
3 years ago
Read 2 more answers
What best describes perpendicular rays
Mazyrski [523]

To define a perpendicular rays, we first define a ray.

A ray starts from one point and extend it to form one direction.

If two lines or rays or line segments intersect at right angle (90°), then they are perpendicular.

In particular, Perpendicular rays are rays that intersect to form a right angle.

Four right angles are formed in the perpendicular rays.

8 0
3 years ago
Mary says that -5 x 2 = -3. Explain the mistake Mary made and write the correct number sentence including the correct answer.
stira [4]

Answer:

it should be -10

Step-by-step explanation:

5 x 2 is 10 but you add the negative. Mary added instead of multiplied.

4 0
3 years ago
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I’ll and 20 for the answer
charle [14.2K]

Answer:

Step-by-step explanation:

First convert £ 300 to Yen

£1 = ¥ 168

£300 = 168 * 300 = ¥ 50400

As bank as ¥ 1000 notes,  the money he get is ¥50,000

50000 ÷ 1000 = 50

Kevin gets 50 notes of ¥ 1000

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3 years ago
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