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meriva
3 years ago
6

45 less than a number m is −78

Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0

m = -33

Step-by-step explanation:

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The diagram shows a sector of a circle radius 10 cm. the angle is 135 degrees
Black_prince [1.1K]

Answer:

The perimeter is 43.6 cm

Step-by-step explanation:

In this question, we are tasked with calculating the perimeter of the sector.

Firstly, we define what a sector is. A sector is part of a circle which is is blinded by two radii and an arc. Hence we say a sector contains two radii.

Thus, to calculate the perimeter of the sector, we need the length of the arc added to 2 * length of the radius

Let’s calculate the length of the arc.

Mathematically, this is theta/360 * 2 * pi * r

where theta is the angle subtended at the middle of the circle which is 135 according to the question, and our radius is 10cm

Thus, we have

135/360 * 2 * 22/7 * 10 = 23.57 cm

Adding two radii to this, we have;

23.57 + 2(10)

= 23.57 + 20 = 43.57 = 43.6 cm to 1 decimal place

5 0
2 years ago
Statistics urgent<br> Use n=6 and p=0.85 to complete
Bas_tet [7]

Answer:

I cant see anything on that picture. Wish I could help bruv. I wish I could help. It's a shame innit.

7 0
2 years ago
write an equation in point slope form of the line that passes through the point (0,1) and has a slope if -3/2
DochEvi [55]

Step-by-step explanation:

<u>y</u> - <u>1</u> = <u>-</u><u>3</u>

x - 0 2

2y - 2 = -3x

2y = -3x + 2

7 0
3 years ago
Help please I really need help
Tems11 [23]

Answer:

hi

Step-by-step explanation:

7 0
3 years ago
Three fifths of the members of a hiking club went on the last hiking trip. If 39 people went on the trip , how many are in the c
finlep [7]

Step-by-step explanation:

1. Since 39 is 3/5 of the club, divide by 3 to get 1/5 of the club

2. 1/5 of the club is 13 people

3. Multiply 13 by 5 to get 5/5 of the club (which is the whole club)

4. The whole club is 65 people

5. You can check it because 65×3/5=39

4 0
2 years ago
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