Answer:
x² + 2x - 15 = 0
x² + 2x + 1 = 16
(x + 1)² = 16
You can then go forward with that to solve it:
x + 1 = √16
x = -1 ± √16
x = -1 ± 4
x = 3, -5
Hello, first you look at the number of tricycle you need to sell in order to make $50.00. This would be
tricycles. We round this up to 13 since we do not have half a tricycle.
Knowing this, you won't actually need all the other given parts since you only need to know that you need 2 pedals to make a tricycle. Multiply these pedals by 13 you'll get:
.
ANSWER: B. You would need 26 pedals in order to make $50.00
7. Subtract 5.7 from both sides to get the variable on one side. (f=2)
8. Subtract 5.52 from both sides to get the variable on one side. (f=5)
9. Add 3.77 to both sides so the variable will be on one side.
10. Add 10.58 to both sides.
11. Divide by 2.2 on both sides. 2.2b/2.2 will leave you with the variable b. 8.8/2.2=4; b=4.
12. Divide by 2.5b on both sides. 2.5b/2.5 leaves b. 10/2.5= 4; b=4.
B is the correct answer because they are similar shaped but not same size