Answer:
Simplifying
x + 5 = 9x2 + x + 1
Reorder the terms:
5 + x = 9x2 + x + 1
Reorder the terms:
5 + x = 1 + x + 9x2
Add '-1x' to each side of the equation.
5 + x + -1x = 1 + x + -1x + 9x2
Combine like terms: x + -1x = 0
5 + 0 = 1 + x + -1x + 9x2
5 = 1 + x + -1x + 9x2
Combine like terms: x + -1x = 0
5 = 1 + 0 + 9x2
5 = 1 + 9x2
Solving
5 = 1 + 9x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9x2' to each side of the equation.
5 + -9x2 = 1 + 9x2 + -9x2
Combine like terms: 9x2 + -9x2 = 0
5 + -9x2 = 1 + 0
5 + -9x2 = 1
Add '-5' to each side of the equation.
5 + -5 + -9x2 = 1 + -5
Combine like terms: 5 + -5 = 0
0 + -9x2 = 1 + -5
-9x2 = 1 + -5
Combine like terms: 1 + -5 = -4
-9x2 = -4
Divide each side by '-9'.
x2 = 0.4444444444
Simplifying
x2 = 0.4444444444
Take the square root of each side:
x = {-0.666666667, 0.666666667}
Step-by-step explanation:
Answer:
Centimeters Mapped: 8.4 cm
Step-by-step explanation:
Let us plan out our steps, and solve for each:
1. If we want to determine the cm of the route on the map, let us first convert 2.1 kilometers ⇒ centimeters: 2.1 km = 210,000
2. Given such, let us create a proportionality as such:
1 = 25,000 ⇒ x - route in cm mapped out
x 210,000
3. Now let us cross multiply, and solve through simple algebra:
210,000 = 25,000 * x,
x = <em>8.4 centimeters marked by a route on the map</em>
Answer:
I think Oad is not ture
Step-by-step explanation:
didnot exactly sorry'
mean:20+17+10+31+25+18+12=132÷7=18.8
Media:10,12,17,18,20,25,31=
18÷1
= 18
mode=0
Range=31-10=21