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3 years ago

The point D(2, -5) is rotated 90° counterclockwise around the origin. What are the coordinates of the resulting point, D′?

Mathematics

1 answer:

jeyben [28]3 years ago

8 0

Answer:

D' = (5, 2)

Step-by-step explanation:

Try to join D and the origin using a line. Counterclockwise means in an opposite direction of rotation of the clock hands. So draw another line towards the right which is perpendicular to the previous line to fine the answer. Remember the length of the lines should be equal.

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Out of 100 seventh and eighth grade CAVA students there were 35 students that chose Music as their elective course and the rest

frutty [35]

Answer:

| Music | World Language | Total

8th grade | 30 | 35 | 65

7th grade | 5 | 30 | 35

Total | 35 | 65 | 100

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2 years ago

Find the value of unknown angle x,y,z,a,b,c with reasons and full process

Oduvanchick [21]

Answer:

Step-by-step explanation:

x = 70 degree (being vertically opposite angles)

y + 70 degree =180 degree (being linear pair)

y = 180 - 70

y = 110 degree

In triangle,

x + 60 + misssing angle = 180 degree (sum of interior angles of a triangle)

70 + 60 + missing angle =180

130 + missing angle = 180

missing angle = 180 - 130

missing angle = 50 degree

c = missing angle (being vertically opposite angles )

c = 50 degree

x + missing angle = a (sum of two interior opposite angles is equal to the exterior angle formed)

70 + 50 = a

120 degree = a

a = b (being vertically opposite angle

120 =b

therefore b is 120 degree

Hence , a = 120 degree , b = 120 degree , c = 50 degree , x = 70 degree , y = 110 degree

7 0

3 years ago

Select the equation needed to solve the following word problem:

bija089 [108]

Answer:

Correct answer is D.

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3 years ago

What is the factorization of the trinomial below? -X^2 - 2x + 48

raketka [301]

Answer:

<h3>I think option C.</h3>

(x-6) (x-8).

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2 years ago

Read 2 more answers

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Iteru [2.4K]

Answer:

(0,3) , (1,5) , (2,7)

Step-by-step explanation:

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