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kogti [31]
3 years ago
9

Match each description to its example.

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

if we have the point (x, y), a reflection over the x-axis give us the point (x, -y)

if we have the point (x, y), a reflection over the y-axis give us the point (-x, y)

if we have the point (x, y), a reflection across both axes give us the point (-x, -y)

1. (2, -3) → (-2, -3) -------  reflection across the y-axis

2. (2, -3) → (-3, 2) -------- not a reflection

3. (2, -3) → (-2, 3) ------ reflection across both axes

4.  (2, -3) → (2, 3)  -----   reflection across the x-axis

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Find the value of r (5,9) (r,7) m=-4
jolli1 [7]

Answer:

r = 11/2

Step-by-step explanation:

m = slope

slope, m = (y2 - y1)/(x2 - x1)

-4 = (7 - 9)/(r - 5)

cross multiply

-4(r - 5) = 7 - 9

clearing brackets

-4r + 20 = -2

-4r = -22

r = 22/4 = 11/2

6 0
3 years ago
Jane estimates this product by computing 7 x 800.
nirvana33 [79]

Answer:

Bill is closer.

Step-by-step explanation:

Bill: 7 * 900 = 6,300

Jane:  7 * 800 = 5,600

Actual Answer: 7 * 876 = 6,132

5 0
4 years ago
Find the volume of a right circular cone that has a height of 17.5 ft and a base with a diameter of 6.1 ft. Round your answer to
julia-pushkina [17]
Answer:
volume of cone = 170.5 ft³

Explanation:
The volume of the right circular cone can be calculated as follows:
volume = \frac{1}{3} * \pi *r^2 *h

We are given that:
diameter = 6.1 ft.......> This means that: radius (r) = 6.1 / 2 = 3.05 ft
height (h) = 17.5 ft

Substitute with the givens in the above equation to get the volume as follows:
volume = \frac{1}{3} * \pi *(3.05)^2*17.5

volume = 170.477 which is approximately 170.5 ft³

Hope this helps :)

6 0
3 years ago
A high speed elevator can rise 480 feet in 30 seconds. Which expression represents the rat9,in feet per minute,of the elevator
Vera_Pavlovna [14]
Y=60x+960 is the answer
4 0
3 years ago
True or Fasle
Mnenie [13.5K]

1. True.

2. False. x² + 4 = (x+2)(x-2)

3. True.

4. False. It gives (x²-9) which is a binomial.

<em>Feel free to mark this as brainliest! :D</em>

5 0
2 years ago
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