Answer:
x₁ = - 5, x₂ = 5
Step-by-step explanation:
x^2 + 3 = 28
x^2 = 28 - 3
x^2 = 25
x = ± 5
x = - 5
x = 5
D) 36
7 - 3 + 5 = 9 × 4 = 36
Turn it into an improper fraction: 23/8 <span>÷ 11/3
Keep the 23/8, change the division sign to a multiplication, and flip the 11/3 so now it's: </span>23/8 x 3/11
Then multiply them to get the
Answer: 69/88
Kevin painted
of the wall.
Solution:
Fraction of the wall painted by Elena = 
Fraction of the wall painted by Matthew = 
Fraction of the wall painted by Kevin = ?
Full wall can be taken as 1.
<u>To find the wall painted by Kevin:</u>
Rest of the wall = Full wall – painted by Elena – Painted by Matthew


To make the denominator same, multiply the numerator and denominator of the first term by 9.



Rest of the wall = 
Hence the kevin painted
of the wall.