Answer:
A
Step-by-step explanation:
Change the mixed numbers to improper fractions
7 =
6 =
The subtraction is then
-
Both fractions have a common denominator so subtract the numerators leaving the denominator
= =
→ A
The map scale is 1in: 40 miles . the distance on the map is 3.5 inches . what is the actual distance
1 answer:
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Answer:
13 and -14 satisfy this condition
Step-by-step explanation:
Let's represent that number as x
and the square of x is x^2
So,
x + x^2 = 182
Subtract 182 from both sides
x + x^2 - 182 = 182 - 182
x + x^2 - 182 = 0
rearrange the quadratic equation
x^2 + x -182 = 0
let's use the quadratic formula
or
a = 1, b = 1, c = -182
or
or
or
or
or
13 or - 14
Lets check
13 + 13^2 = 13 + 169
= 182
Also,
-14 + (-14^2) = -14 + 196
= 182