
Your answer is
$130.90
Note: We multiply by 70/100 because of the 30% discount. 100 - 30 = 70. So we have to multiply by 70%.
Also, we multiply by 105/100 because there is 5% tax. The tax means that we have to pay more which means 100 + 5 = 105.
Hope this helped :D
3x^2 - 7x + 9 - (2x^2 + 4x - 8).....distribute the - thru the parenthesis
3x^2 - 7x + 9 - 2x^2 - 4x + 8....combine like terms
x^2 - 11x + 17 <== this is how much less it is
x^2 - 11x + 17.....when x = 2
2^2 - 11(2) + 17 =
4 - 22 + 17 =
21 - 22 =
-1 <====
Answer:
Step-by-step explanation:
<em />
<em>It is easy to find the area if we simplify the task.</em>
Split the polygon into trapezoid and triangle by adding imaginary line y = 2 parallel to the x-axis.
Now find the area of each part.
<h3>Trapezoid </h3>
It has parallel bases:
- 0 - (-8) = 8 units and
- 4 - (-8) = 12 units
Its height is:
The area is:
- A = (b₁ + b₂)h/2 = (8 + 12)*2/2 = 20 units²
<h3>Triangle</h3>
It has base:
Height:
The area is:
- A = bh/2 = 12*10/2 = 60 units²
<h3>
Total area </h3>
of the polygon is:
Correct choice is D
Answer:
3. 60°
4. 378.542
Step-by-step explanation:
in the picture
Answer:
4
Step-by-step explanation:
For this, you need to find the scale factor of two sides that are already given to you.
So, we will have to use the hypotenuse and one of the legs to make sure there is an accurate scale factor.
Hypotenuse:
15 / 5 = 3
Leg:
6 / 2 = 3
____________
So the scale factor is 3.
Using the leg (with the x) we need to divide 12 by the scale factor (3) to give us what x is equal to.
12 / 3 = 4
So, the answer is 4.