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djverab [1.8K]
3 years ago
11

Which graph shows a reflection of point A over the line? *

Mathematics
2 answers:
ohaa [14]3 years ago
6 0

Answer:

D

Step-by-step explanation:

BigorU [14]3 years ago
4 0

Answer:

B

Step-by-step explanation:

the left point in graph B is left 2 and up 1 from the line while the right point is right 2 and down 1 making them a reflection of each other.

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The radius of a circle is 20 cm. Find its area in terms of π π.
natulia [17]

Answer:

A = 400\pi cm^2

Step-by-step explanation:

Area of a circle is:

A = πr²

We are given a radius of 20 cm.

A = πr²

A = π(20)²

A = π400

<em>A = 400πcm²</em>

Hope this helps.

4 0
2 years ago
25 POINTS AND BRAINLIEST
kondor19780726 [428]

Answer:

4.24 hours

Step-by-step explanation:

Irina can paint 1/9 of a room in 1 hour since she can paint a room in 9 hours. 1/9x, where x is the number of hours she works and 1/9 of a room per hour is her speed, would be her part of the calculation.

Paulo can paint 1/8 of a room in 1 hour since he can paint an entire room in 8 hours. 1/8x, where x is the number of hours he works and 1/8 of a room per hour is his speed, would be his part of the equation.

1/9x + 1/8x = 1 (Irina's portion of the room plus Paulo's portion of the room equals one complete room) would be the equation.

Look for a denominator that has the same value as the numerator. Both 9 and 8 split evenly into 72 as the initial number. We multiply the top of 1/9 by 8 to convert the fraction and get 8/72x because 9*8 = 72. We multiply the top of 1/8 by 9 to convert the fraction and get 9/72x because 8*9 = 72. We have 8/72x+9/72x=1 currently.

17/72x=1

÷ both sides by 17/72:

17/72x ÷ 17/72 = 1÷17/72

∴ x=1/1 * 72/17

∴ x=72/17= 4.24

8 0
2 years ago
Can some one help me plz I need this to up my grade I dont wanna fail
kodGreya [7K]

Answer:

Srue what's your question

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Which one doesn't belong?<br> 1. 5+7=7 +5<br> 2. 5.7=7.5<br> 3. 2= 7 - 5<br> 4. 5-7= 7-5
kap26 [50]
The one that doesnt belong is the 3 one
4 0
3 years ago
Read 2 more answers
.Calculate the time in which ₦1,500 will amount to ₦9,000 at 20% per annum.
katovenus [111]

Answer:

30 yrs

Step-by-step explanation:

SI = PRT/100

T = I × 100/PR

= 9000×100/1500×20

= 900000/30000

= 30 yrs

3 0
2 years ago
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