3 years ago

What set of rotations would carry trapezoid ABCD onto itself?

1 answer:

4 0

A 360 degree rotation, around any point. Now sometimes you can do it with 180 degrees of rotation, but I need more information to specify.
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What are the solutions to the quadratic equation 98-x2=0

kifflom [539]

$98-x^2=0\qquad\text{add}\ x^2\ \text{to both sides}\\\\98=x^2\to x^2=98\\\\x=\pm\sqrt{98}\\\\x=\pm\sqrt{49\cdot2}\\\\x=\pm\sqrt{49}\cdot\sqrt2\\\\\boxed{x=-7\sqrt2\ \vee\ x=7\sqrt2}$

8 0

3 years ago

A survey of 391 children given at a local elementary school showed that 175 like chocolate ice cream, 150 like pistachio ice cre

poizon [28]

Answer:

325

Step-by-step explanation:

Just add the number of kids who like chocolate, 175 to the number of kids of like pistachio, 150, and you get 325 children

6 0

2 years ago

All t-shirts in a store are on sale as shown. Is this markdown greater than or less than a markdown of 1/5 off the original pric

vfiekz [6]

Greater bc the market prices are going to go up

5 0

2 years ago

HELP QUICK I ONLY HAVE 1 CHANCE

Otrada [13]

I think it would be 1/2. Because, there's a 50/50 chance of it landing in either side.

8 0

2 years ago

The width of a rectangle is half the length. the perimeter of the rectangle is 54 in. what is the length of the rectangle?

solmaris [256]

2(x +1/2x) = 54
3x = 54
x = 18
Length: 18

7 0

3 years ago