Answer:
12
Step-by-step explanation:
x + y = 6 and xy =2
Left sides multiplied= right sides multiplied
Multiply (x+y) by xy = 6*2
(x+y) xy = 6*2
Distribute
x^2y + xy^2 = 12
Answer:
D
Step-by-step explanation:
let y = x - 2 and rearrange making x the subject, that is
y = x - 2 ( add 2 to both sides )
y + 2 = x
now change x to
(x) and y back to x, thus
(x) = x + 2 → D
We have been given some information about a circle whose area is 13266.5 square yards. And we are advised to use value of π =3.14.
Now we need to find the radius of the circle so we can use formula of area of the circle which is :




take square root of both sides
65 = r
Hence final answer is radius of the circle = 65 yards.
Set up the composite result function.
f
(
g
(
x
)
)
Evaluate
f
(
g
(
x
)
)
by substituting in the value of
g
into
f
.
4
(
x
−
2
)
Apply the distributive property.
f
(
x
−
2
)
=
4
x
+
4
⋅
−
2
Multiply
4
by
−
2
.
f
(
x
−
2
)
=
4
x -8
Step-by-step explanation:
Answer:
(4 + 5i)(2 - 7i) = 8 - 28i + 10i + 35
= 43 - 18i
4 + 5i(2 - 7i) = 4 + 10i + 35
= 39 + 10i