Let's look at the equation we have.
18x + 2x = 31
The first step would be to combine like terms. Ex: 18x and 2x
18x + 2x = 31
20x = 31
Now, to isolate the x, you would divide both sides by 20.
20x = 31
x = 1.55
x = 1.55
I hope this helps!
Answer:
3.2
Step-by-step explanation:
If there are 2 secont lines intersecting inside a circle like the picture shown, then the theorem tells us that <em>"the product of 2 segments of one secant line is equal to the product of 2 segments of other secant line"</em>
<em></em>
Thus, we can say that:
x * 10 = 8 * 4
10x = 32
x = 32/10
x = 3.2
Answer:
Simplify square root of x^2-9
√
x
2
−
9
Rewrite
9
as
3
2
.
√
x
2
−
3
2
Since both terms are perfect squares, factor using the difference of squares formula,
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
where
a
=
x
and
b
=
3
.
√
(
x
+
3
)
(
x
−
3
)
Y+5=2(x+2) or D is the answer