3 years ago

In the figure below, Triangle A has been rotated about the origin. Which Triangle shows a 90 degree counterclockwise rotation?

Mathematics

1 answer:

bearhunter [10]3 years ago

8 0

Answer:

Step-by-step explanation:

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Solve for a.<br> a^2=-3a+88

Sergio [31]

Answer:

$a=8,-11$

Step-by-step explanation:

$a^2=-3a+88$

$a^2+3a=88$

$a^2+3a-88=0$

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-3\pm\sqrt{3^2-4(1)(-88)} }{2(1)}$

$x=\frac{-3\pm\sqrt{9+352} }{2}$

$x=\frac{-3\pm\sqrt{361} }{2}$

$x=\frac{-3\pm19 }{2}$

$x=-11$ and $x=8$

Therefore, the values of $a$ are 8 and -11.

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2 years ago

A pigeon can fly at a speed of 84 kilometers per hour. How long does it take the pigeon to fly 7 kilometers?

Serhud [2]

The pigeon can fly 7 kilometers in around 8-9 minutes

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3 years ago

Is 1 3/5 1.9 equal to or less than or greater than

Vikentia [17]

The answer for this question is 13/5 greatre than 1.9

5 0

3 years ago

Read 2 more answers

james was diving in the ocean. he decided to ascend 11 feet to be able to see the coral better. he was then at -13 feet from the

vesna_86 [32]

Answer: -1 because - 13 - 11 will = -1

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2 years ago

Nathan and Olivia are saving money for school supplies. Nathan saves $2 per week and already has $30 in his bank. Olivia saves $

melomori [17]

Answer:

Nathan: 2x+30

Olivia: 4x+15

Step-by-step explanation:

x is the number of weeks

Nathans account is as follows

2x+30

(2 dollars a week plus the 30 dollars already there)

Olivia's account is as follows

4x+15

(4 dollars per week plus the 15 already in there)

4 0

2 years ago