A. The area must be 1/2 x^2, so x must be 7.3. (7.3^2=53.29), 53.29/2=26.645.
Answer:
<u>w^2+9w+20</u>
Step-by-step explanation:
Apply the FOIL METHOD: (a + b) (c + d) = ac + ad + bc + bd
a = 5
b = w
c = w
d = 4
= 5w + 5 x 4 + ww + w x 4
= 5w + 5 x 4 + ww + 4w
Simplify 5w + 5 x 4 + ww + 4w:
<u>w^2 + 9w + 20</u>
Answer:
Step-by-step explanation:
<u>Shaded region (blue) is the difference of areas of big and small triangles</u>
- A = 1/2(16*12 - 10*6) = 66 cm²
<em>The answer options are incorrect</em>
The two triangles are congruent through AA (angle-angle proportionality theorem) therefore all the sides are congruent to each other.
In this case:
2y = 5y - 7
2y - 5y = -7
-3y = -7
y = -7/-3
y = 7/3