Answer:
7.1
Step-by-step explanation:
I'm not sure why you have two equal signs, so I'm just going to use the part before the second sign.
-4.5 = -0.5(x-7.1) -4.5
Add 4.5 to both sides -4.5 + 4.5 = -0.5(x-7.1) -4.5 + 4.5
0 = -0.5(x-7.1)
Multiply both side by -2 -2 * 0 = (-2)(-0.5)*(x-7.1)
0 = 1 * (x - 7.1)
0 = x - 7.1
Add 7.1 to both sides 0 + 7.1 = x - 7.1 + 7.1
7.1 = x
Is 19 the radius or diameter?
if it is the radius 1133.54
is it is the diameter 283.385
Answer:
Step-by-step explanation:
13
Taking the side we can't quite see, I would guess it is an 8.
A 45 45 90 triangle is isosceles.
The two legs are equal.
x = 8
14
Little harder
The tangent of the angle is Tan(x) = opposite over adjacent
opposite = 10
adjacent = 15
Tan(x) = 10/15
Tan(x) = 2/3
x = tan-1(2/3)
x = tan-1(0.6666666667)
x = 33.7 degrees.
Do you know how to put this in your calculator.
2nd
tan
0.666667
=
gives
33.7 rounded
900-190= 710
710/40= 17.75
17 (or 18, but I would choose 17 if I were you)
68 degrees
The Isosceles triangle has two angles of 56 and one angle of 68.