Part C: Each side of the hanger represents a part of the equation. Since the hanger is level, both sides are equal. For that reason, you set the sides equal to each other. Since you know what the circle and triangle weight, it’s easy to find the weight of the square
Equations : Tiger Algebra gives you not only the answers, but also the complete step by step method for solving your equations 12n^2+5n-2 so that you ...
10 milkshakes because there is 21/24 vanilla and it takes 2/24 per milkshake so they can make 10 with 1/24 of a gallon of vanilla left over
Answer:
a = 1, b = -2
Step-by-step explanation:
You are given values of x are 1 and 2 when the equation is 0
To solve the problem substitute the values of x into the equation
For x =1
1^2 + a(1) + b = 0
1 + a + b = 0
a+b = -1(call this equation i)
For x = -2
-2^2 + a(-2) + b = 0
4 - 2a + b = 0
-2a + b = -4 (call this equation ii)
Now solve equation i and ii simultaneously to get values of a and b.
a+b = -1
-2a+b = -4
By elimination method (also you can solve by substitution method) subtract equation ii from equation i, we get
3a = 3
Divide 3 both sides, you get
a = 1
Take the value of a above substitute it into either equation i or ii to get the value of b
Here i considered equation i
a + b = -1
1 + b = - 1
b = - 1 - 1
b = -2
Therefore a = 1, b = -2
Answer:
15
Step-by-step explanation: