Answer:
20
Step-by-step explanation:
Given the expression
x(x + 3) + 2 for x = 3
Substitute x =3 into the equation
f(3)= 3(3+3)+2
f(3) = 3(6)+2
f(3) = 18+2
f(3) =20
Hence the value of the expression when x = 2 is 20
Answer:
Factor
5 out of 5
x^
2
+
10x
−
15
.
5
(
x^
2
+
2
x
−
3
)
5
(
x
−
1
)
(
x
+
3
)
answer^
Answer:x = 55
Explanation:In a parallelogram, the sum of each two consecutive angles is 180°.
In the given parallelogram ABCD, we can note that angles A and B are consecutive angles. This means that their summation is 180°
Therefore:
∠A + ∠B = 180
2x + 15 + x = 180
3x + 15 = 180
3x = 180 - 15
3x = 165
x = 165 / 3
x = 55
Now we can check:
angle A = 2(55) + 15 = 125°
angle B = 55°
angle A + angle B = 125 + 55 = 180°
Hope this helps :)
Answer:
x = 12
Step-by-step explanation:
4x+40 = 100-x
so when solved the answer is 12.
I hope this helps you.