Answer: a = 0, a = -8
Step-by-step explanation:
1. 
2. 
3. 
4. so a = 0 or -8
Answer: 152.46 squared centimeters.
Step-by-step explanation:
- The equation to find the area of the trapezoid is A = ½ (6.6 + 16.5) 13.2
- Distribute ½ into (6.6 + 16.5) . A = (3.3 + 8.25) 13.2.
- Add the numbers inside the parenthesis. A = 11.55 * 13.2
- Multiply 11.55 * 13.2. A = 152.46.
We can solve this system of equations using substitution.
2y + 2x = 8
Solve for x.
2x = -2y + 8
Divide all terms by 2.
x = -y + 4
Take the equation x = -y + 4 and substitute it into the second system of equation.
2y - 4x = 2
2y - 4(-y + 4) = 2
Simplify by distributing.
2y + 4y - 16 = 2
Combine like terms.
6y - 16 = 2
6y = 18
y = 3
Now that you know the numerical value of y, substitute y with 3 in both equations to find x.
1) 2y + 2x = 8
2(3) + 2x = 8
6 + 2x = 8
2x = 2
x = 1
2) 2y - 4x = 2
2(3) - 4x = 2
6 - 4x = 2
-4x = -4
x = 1
The value of x is 1, and the value of y is 3.
Solution: B) (1, 3)
Answer:
3/4ths im pretty sure
Step-by-step explanation:
2 1/8 ------- 1 9/8
- 1 3/8------- - 1 3/8
_______ ______
6/8= 3/4
Answer:
1) E
2) D
3) G
4) I
Step-by-step explanation:
1)
P = 2(l + w)
P = 2(3a + 3 + 8a - 12)
P = 2(11a - 9)
P = 22a - 18
2)
P = 22a - 18
P = 22(3) - 18
P = 66 - 18
P = 48
3)
P = a + b + c
P = 3b + 7 + 7b - 2 + 7b - 2
P = 17b + 3
4)
P = 17b + 3
P = 17(6) + 3
P = 102 + 3
P = 105
