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V125BC [204]
3 years ago
13

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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There are 8 jars of jellyfish jelly for $15.68. Write a proportion that gives the cost (c) if you buy 6 jars of jellyfish jelly.
igor_vitrenko [27]

Answer:

The proportion that gives the cost (c) if you buy 6 jars of jellyfish jelly =

Cost(c)= 1/8($15.68 × 6)

The cost (c) if you buy 6 jars of jellyfish jelly is $11.76

Step-by-step explanation:

There are 8 jars of jellyfish jelly for $15.68. Write a proportion that gives the cost (c) if you buy 6 jars of jellyfish jelly.

The proportion is given as:

Number of jars of Jellyfish/Cost of the Number of jar of Jellyfish

Hence:

8/$15.68 = 6/c

We Cross Multiply

8 × c = $15.68 × 6

c = $15.68 × 6/8

c = $11.76

Therefore,

The proportion that gives the cost (c) if you buy 6 jars of jellyfish jelly =

Cost(c) = 1/8($15.68 × 6)

The cost (c) if you buy 6 jars of jellyfish jelly is $11.76

6 0
3 years ago
Explain why √3x+2 = -16 has no solution.
pogonyaev
The equation you wrote has no solutions since the left hand side is equal to 6x-10 and the right hand side is equal to 6x+8. Setting them equal we get -10=8 which is obviously wrong.
8 0
3 years ago
Read 2 more answers
I need the answer fast please
iogann1982 [59]

Answer:

A'

Step-by-step explanation:

It is A' because they are corresponding angles, it is the same exact shape it has just been translated to a different area of the graphic plane.

If my answer is incorrect, please notify me and I'll assess what it was that I did wrong.

3 0
3 years ago
What is the explicit formula for the sequence that is associated with the table?
ANEK [815]

Answer:

see explanation

Step-by-step explanation:

Consider the values of y

\frac{2}{5}, 2, 10, 50

Consider the ratio between consecutive terms

2 ÷ \frac{2}{5} = 5

10 ÷ 2 = 5

50 ÷ 10 = 5

Since the ratio is common then the terms form a geometric sequence

The n th term of a geometric sequence is

a_{n} = a(r)^{n-1}

where a is the first term and r is the common ratio, hence

a_{n} = \frac{2}{5}(5)^{n-1} ← explicit formula

3 0
3 years ago
5
Helga [31]

Answer:

5, 8, 11

Step-by-step explanation:

3(2) - 1 = 5

3(3) - 1 = 8

3(4) - 1 = 11

8 0
3 years ago
Read 2 more answers
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