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3 years ago

What is the image of the point (3,-8) after a rotation of 90° counterclockwise about the origin?

1 answer:

6 0

Answer:
(8,3)
Step-by-step explanation:
When we rotate a point 90° counterclockwise around the origin, it's the same as rotating it 270° clockwise around the origin.
When we rotate something 270° clockwise around the origin, the original coordinates (x, y) becomes (-y, x).
y is -3, and -(-3) is just 3, since two negatives make a positive.
x just remains x, but it's in a different position.
This makes the new coordinate .
Hope this helped!

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Thanks for help have nice day

kupik [55]

Answer: 6. d

7. b

8. d

9. c

Step-by-step explanation:

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3 years ago

5.75 , 7.75 , 9.75 , 11.75 is a Non linear sequence ? is it true or false

Tomtit [17]

Answer:

false because each go up by two and I didnt even look it up

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3 years ago

Read 2 more answers

Please answer this correctly

suter [353]

Answer:

1 11/24 tablespoons

Step-by-step explanation:

$1+1+1\frac{1}{3} +1\frac{1}{3} +1\frac{2}{3} +1\frac{2}{3} +1\frac{2}{3} +2=\\\\2+2\frac{2}{3} +3\frac{6}{3} +2=\\\\9\frac{8}{3} =\\\\11\frac{2}{3}$

There were 8 mugs in total so:

$11\frac{2}{3}$ ÷ 8=

$11\frac{2}{3} *\frac{1}{8} =\\\\\frac{35}{3} *\frac{1}{8} =\\\\\frac{35}{24} =\\\\1\frac{11}{24}$

5 0

3 years ago

Lydia wants to buy new boots that cost $130. She has saved 82% of what she needs to buy the boots. How much money has she saved

Lorico [155]

Answer:

Answer:

44 = 12 + M

Step-by-step explanation:

Start with your final amount that everything else is going to equal

44 =

Then, add the $12 that is already saved to the other side\

44 = 12

But, that equation is not true yet, so we have to add the amount of money that she still needs to save

44 = 12 + M

That equation shows that the money she has saved ($12), plus the amount she still has to save will equal the amount she needs.

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3 years ago

The formula for the area of a triangle is , where b is the length of the base and h is the height. Find the height of a triangle

Alexandra [31]

The area of a triangle is A= 1/2bh. Plugging in the values you know, 30= 1/2*12*h.

Solving for h,

30= 1/2*12*h

30= 6h

h=5

The height of the triangle is 5 units.

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3 years ago