Answer:
3. A; 4. C; 5. D; 6. D
Step-by-step explanation:
3. By Pythagorean theorem, x^2=100-64=36, x=6
4. By Pythagorean theorem, x^2=81-36=25, x=5
5. Since the triangle is an isosceles, the other side is 4, so the hypotenuse is 4
. (the ratio is 1:1:
by Pythagorean theorem)
6. Like Question #5, the ratio is 1:1:
since it is an isosceles triangle, the leg is 8.
He was there for 3 hours cause 3 x 35 = 105 but 105 + 55 = 160
Answer:
(2x+3y)(2x-3y)
Step-by-step explanation:
a² - b² = (a + b)(a - b)
4x² - 9y²
= (2x)² - (3y)²
= (2x + 3y)(2x - 3y)
Answer:
b/4+9
Step-by-step explanation: