25.2 is your answer, it is basically a half of 50.4
Answer:
Kyle did not solve the question correctly
Step-by-step explanation:
The equation (-4x +9)^2 is a perfect square trinomial.
A typical example of a perfect square trinomial is (x +y) ^2 = x^2 + 2xy + y^2
Therefore, (-4x + 9)
= (-4x)^2 + 2(-4x)(9) + (9)^2
= 16x^2 + 2(-36x) + 81
= 16x^2 - 72x +81
The result Kyle gave was 16x^2 + 81. This is incorrect.
Therefore, Kyle did not solve the question correctly
Here is one of the ways, first you are going to convert the 2% into a fraction.
2% = 0.02
Next we are going to multiply 0.02 * 57 = 1.14
Now we are going to add 1.14 to 57 to find the total cost with including the tax.
1.14 + 57 = 58.14
= $ 58.14
Answer:
I think the answer is A. P/7 - 3
Step-by-step explanation:
A = √1² + 2²
a = √1 + 4
a = √5
a ≈ 2.23
b = 4
c = √3² + 2²
c = √9 + 4
c = √13
c ≈ 3.6
P = a + b + c
P = 2.23 + 4 + 3.6
P = 6.23 + 3.6
P = 9.83
Perimeter of ΔBDE = 9.83 units