Answer:The answer is 1 and 3
Step-by-step explanation:
Answer:
(- 1, - 5 )
Step-by-step explanation:
Given the 2 equations
y = 3x - 2 → (1)
6 + y = - x → (2)
Substitute y = 3x - 2 into (2)
6 + 3x - 2 = - x
4 + 3x = - x ( add x to both sides )
4 + 4x = 0 ( subtract 4 from both sides )
4x = - 4 ( divide both sides by 4 )
x = - 1
Substitute x = - 1 into (1) for corresponding value of y
y = 3(- 1) - 2 = - 3 - 2 = - 5
solution is (- 1, - 5 )
Step-by-step explanation:
x=√7+√5, y=√7-√5
therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.
Hope this helps you.
Answer:
5. P = 23 m
A = 15 ![m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
6. P = 24.4 in
A = 15.3 ![in^{2}](https://tex.z-dn.net/?f=in%5E%7B2%7D)
Step-by-step explanation:
Area formula of a triangle is A = 1/2 bh
Area formula of a parallelogram is A = bh
5. The height of a triangle is perpendicular to the base.
A = 1/2 * 10 * 3
A = 15 ![m^{2}](https://tex.z-dn.net/?f=m%5E%7B2%7D)
6. The height of the parallelogram is also perpendicular to the base.
A = 9 * 1.7
A = 15.3 ![in^{2}](https://tex.z-dn.net/?f=in%5E%7B2%7D)
Perimeter means you add all the side lengths.
5. The side lengths are 5m, 8m, and 10m. Adding those together, you get 23m.
6. A parallelogram has congruent opposite sides. That means your side lengths are 9 in, 3.2 in, 9 in and 3.2 in. Adding those together, you get 24.4 in.
Answer: The answer is D
Step-by-step explanation: