Answer:
hx2+4
Step-by-step explanation:
Just doubled the painting width and you get your height.
Answer:
no
Step-by-step explanation:
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===
x = 30
When there is a minus before a parenthesis, you must change the sign of the number(s) inside the parenthesis.
(-9) - (-7) × [2 - (-9)]^2 + (-7)
-9 + 7 × [2 + 9]^2 - 7
- 9 + 7 * (11)^2 - 7
-9 + 7*121 - 7
-9 + 847 - 7
831
