Answer:
XY=8
Step-by-step explanation:
In △XYZ, XY=XZ
It is isosceles triangle whose equal sides are XY=XZ
We are given,
XY=2a
YZ=3a+1
XZ=5a-12
XY=XZ
So, 2a=5a-12
Solve for a,
2a-5a=-12
-3a=-12
a=4
Now we put a=4 into XY=2a
So, XY=2(4)=8
Which of the following is an arithmetic sequence? 2, 4, 8, 16, ... -8, -6, -4, -2, ... -2, 4, -6, 8, .
OlgaM077 [116]
Answer:
2,4,6,8 is an arithmetic sequence because you are adding 2 but the second step it's the same but you are subtracting 2
Step-by-step explanation:
The third one is so wrong.
It's 540 cause in one day he picks 12 so in 45=540 cause 45×12 that's all
Hi There!
Answer:
$24
Step-by-step explanation:
= 1/4 + 1/3
= 3/12 + 4/12
= 7/12
7/12a + 8 = 22
Subtract 8 to both sides of the equation.
7/12a + 8 - 8 = 22 - 8
Simplify
7/12a = 14
Switch
a = 12/7 * 14
Simplify
a = $24
Hope This Helps :)