Answer:
(-3,-43) and (3,107)
Step-by-step explanation:
input 25x+32 for y
25x+32=5x²+25x-13
32=5x²-13
-5x²=-45
x²=9
x=+-3
which means you separate the solution
x= -3
x= 3
then input the answers you got for x, in both equations. Then you'll get your y.
y=25(-3)+32
-43
Then check your answer.
Then input the other answer you got for x.
I may be wrong, but I tried and checked my answers.
Answer:
-2w
Step-by-step explanation:
If you distribute w with 1 and 3 you will get 1w - 3w. Since the variables are the same, then you subtract 1w from 3w which will give you -2 as the answer.
The first answer, a(n) = 21n
I think you want to convert it all to feet.
1 mile = 5,280 feet
2 miles = 5,280 × 2
5,280 × 2 = 10,560 feet
10,560 + 500 = 11,060 feet
2 miles and 500 feet is equal to 11,060 feet
Answer:
x^2+20−100 and 16^2−24+9^2
Step-by-step explanation: