B.) x=-5/2
4-(2x+4)=5
4-2x-4=5
-2x=5+4-4
-2x=5
x=5/-2
x=-2.5, or -5/2
Answer: B-(B0.15)
Step-by-step explanation:
By multiplying B and 0.15, it will find 15 percent of B. Then you take original B and subtract that percent off of it. Then that’s B with a discount of 15%.
Answer:
The first one, fourth one, and fifth one
Step-by-step explanation:
Area for triangle is A=½bh and those are the only equations that include A=½(_×_).
Answer:
D
Step-by-step explanation:
the square root is between 14.1 and 14.2.
Answer:
see explanation
Step-by-step explanation:
(16)
The mid segment ZW is half the sum of the parallel bases
ZW = = = 29
(17)
The lower base angles are congruent , so
∠ UYX = ∠ VXY = 35°
(18)
Any lower base angle is supplementary to any upper base angle , then
∠ VUY = 180° - ∠ UYX = 180° - 35° = 145°
(19)
= ZW
= 10 ( multiply both sides by 2 to clear the fraction )
10x = 20 ( divide both sides by 10 )
x = 2
Then
XY = 7x + 1 = 7(2) + 1 = 14 + 1 = 15
(20)
The legs are congruent , so
UY = VX
5a - 6 = 3a + 2 ( subtract 3a from both sides )
2a - 6 = 2 ( add 6 to both sides )
2a = 8 ( divide both sides by 2 )
a = 4