Answer:


Step-by-step explanation:
Completing the square is a method of rewriting a quadratic equation in the standard form such that it is in vertex form. The first step is to group the linear and quadratic terms, then factor out the coefficient of the quadratic term. After doing so, complete the square, add a value such that the linear and quadratic terms form a perfect square trinomial. Do not forget to balance the equation. The final step is to simplify.

Group,

Complete the square,

Simplify,

Now solve the equation using inverse operations,

Answer:
the measurement of YVX is 88°
[ x² - 8x + 16 ] is a perfect square.
It has 2 factors. Both of them are (x - 4) .
Answer:
x = 1400
Step-by-step explanation:
→ x/10 = 140
Multiply 10 on both sides.
→ x/10 × 10 = 140 × 10
→ x × 1 = 1400
→ <u>x</u><u> </u><u>=</u><u> </u><u>1</u><u>4</u><u>0</u><u>0</u>
Answer:
4 hours
Step-by-step explanation:
55h = 80 + 35h
55h - 35h = 80 + 35h - 35h
20h = 80
20h/20 = 80/20
h = 4