Answer:
- 4x² + 6xy - y²
Step-by-step explanation:
8x² + 3xy + 4y² - 12x² + 3xy - 5y² ← collect like terms
= (8x² - 12x² ) + (3xy + 3xy) + (4y² - 5y²)
= - 4x² + 6xy - y²
Corresponding angles are angled that occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel te corresponding angles are equal
(3/5n)(9)10=1/5n−23/10
27/50n=1/5n+−23/10
Subtract 1/5n from both sides.
27/50n−1/5n=1/5n+−23/10−1/5n
17/50n=−23/10
Multiply both sides by 50/17.
(50/17)*(17/50n)=(50/17)*(−23/10)
n=−115/17
Answer:
1816 feet below sea level
Step-by-step explanation:
The deeper the submarine goes or descends, the higher its height below sea level.
The ascending of the submarine will be taken as negative while the descending will be taken as positive
So, 671-218+1363 = 1816ft below sea level
Answer:
14 ounces of blue paint
Step-by-step explanation:
The ratio of blue to yellow is 2:7
To solve this problem we can make a proportion:
2/7=x/49
the numerator represents the blue paint, the denominator represents the yellow paint
To solve the proportion you have to cross multiply:
2*49=7*x
x=14
She needs to add 14 oz of blue paint
I hope this helps :)