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Agata [3.3K]
3 years ago
5

What is the image of the point (2, 8) after a rotation of 270 counterclockwise about the origin ?

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
6 0

Answer:

(8,-2)

Step-by-step explanation:

x and y switch places and x's sign is changed

Ivenika [448]3 years ago
4 0
The answer is (8, -2)
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Solve each by elimination <br> 3x + y = 3<br> -3x + 2y = -30
iren2701 [21]

Answer:

1. X = -Y/3

2. X = 10 + 2Y/3

Step-by-step explanation:

See picture

3 0
3 years ago
I need to know how to simplify using conjugate
liubo4ka [24]
\frac{4}{2 \sqrt{7}+ \sqrt{6}  }
Multiply denominator and numerator of fraction by conjugate (2√7 -6)
=\frac{4(2 \sqrt{7})(- \sqrt{6})  }{(2 \sqrt{7} + \sqrt{6})(2 \sqrt{7} - \sqrt{6} )  }
Expand using distributive property
= \frac{8 \sqrt{7}- 4 \sqrt{6}  }{28-2 \sqrt{42}+2 \sqrt{42} -6 }
Collect like terms to simplify
=\frac{8 \sqrt{7}-4 \sqrt{6}  }{22}
6 0
4 years ago
The cost of a cheeseburger meal is $8.00. The sales tax is found by multiplying the price of the meal by 0.08. What is the total
Rama09 [41]

Answer:

$8.64

Step-by-step explanation:

8.00 x .08= .64 (.64 is the tax)

8.00 + .64= $8.64

8 0
2 years ago
A Family purchased tickets to the movies in spent a total of $40.75. The family purchase five tickets there was a $.90 processi
muminat

Answer:

$7.25

Step-by-step explanation:

Total amount spent on the ticket   = $40.75

Number of ticket purchased  = 5

Processing fee per ticket  = $0.90

Unknown:

Cost of each ticket = ?

Solution:

To solve this problem, we need to find the processing fee for the 5 tickets purchase;

      Processing fee = number ticket x processing fee per ticket

      Processing fee  = 5 x 0.9  = $4.5

Now, the real cost a ticket = $40.75  - $4.5  = $36.25

So, cost per ticket is;

        Cost  = \frac{36.25}{5}   = $7.25

7 0
3 years ago
Which graph represents the solution set for the inequality 1xs 18?
Vesnalui [34]

9514 1404 393

Answer:

  D

Step-by-step explanation:

Multiplying the inequality by 2 will eliminate the fraction and give you ...

  x ≤ 36

The "or equal to" part of the symbol means the end dot will be solid. The "less than" part of the symbol means the graph is shaded to the left of the end dot, which is at x=36. This description matches the graph shown below.

7 0
3 years ago
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