A² = c² - b²
a² = 21² - 13 ²
a² = 441 - 169
a² = 272
a = √272 = 16.49242 ≈ 16.49
Answer : D ) 16.49
Answer: d, rotation
Step-by-step explanation:
trapezoid 1 can rotate into trapezoid 3.
Translation means to move every single point in the same direction
Reflection means to mirror every point aka flipping it over
Dilation means to stay with the same points but to change size
Answer: y=-5/4x+7
Step-by-step explanation: You can see, by looking at the graph, that the slope will be negative, so you can eliminate the options with a positive slope. You can take the first point (0,7) and the second point (4,2) and calculate the slope (the change in y divided by the change in x). 7-2 is five, so that gives us our numerator of the slope. 0-4 is -4, so that gives us our denominator. That gives us a slope of -5/4, so the only answer with that slope is the third option, y=-5/4+7. I hope this helps!
Answer:
12.2
Step-by-step explanation:
use the Pythagorean theorem to determine the diagonal
9.9^2 + 7.2^2 = d^2
d = 12.2
Real numbers. Others contain fractions and decimals which are breaking down a whole. Real numbers are 1 whole. Hope this helps (Hope i get brainliest to!)
