Answer:
The quadratic equation 
has no real solution.
Step-by-step explanation:
Rewrite the quadratic equation in the standard form 
:
, for which:
The quadratic discriminant of is 
. The quadratic discriminant of would be:
.
Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.
2(10)+43+2(10)=83
5(10)+33=83 X=10
Answer:
3 boxes of fertilisers.
Solving steps:
<u>Part A</u>:
Area of the garden, rectangle:
Length * Width
12 * 7
84 m²
Area of patio:
m²
Area of grass:
Area of the garden - Area of patio
84 m² - 9 m²
75 m²
<u>Part B</u>:
32 m² ↔ 1 box
1 m² ↔ 
box
75 m² ↔ 
boxes
75 m² ↔ 2.34375 boxes
- As she cannot buy exact 2.34375 boxes.
She should buy 3 boxes of fertilisers.
Answer:
0.25
Step-by-step explanation:
the pattern is dividing by -4. so divide -1 by -4 and you get 0.25.
Answer: (x=+17)
Step-by-step explanation:
x+35=3x+1
We move all terms to the left:
x+35-(3x+1)=0
We get rid of parentheses
x-3x-1+35=0
We add all the numbers together, and all the variables
-2x+34=0
We move all terms containing x to the left, all other terms to the right
-2x=-34
x=-34/-2
x=+17
.
.
.