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:
10 2
Step-by-step explanation:
give a little thing I know about it and I don't really think we should I guess I have a penguins problem with
37.
Call the amount David has, d.
Call the amount Jhumpa has, j.
Jhumpa has $55.
Jhumpa has $21 more than David.
$55 is $21 more than David has, so if you add $21 to David's amount, d, you get Jhumpa's amount, j
j = d + 21
38.
Let the temperature at noon be t.
The temperature fell 16 deg from noon, so you must subtract 16 from the temperature at noon to get the temperature at 3 pm. The temperature at 3 pm was -3 deg.
That means that t minus 16 must equal -3.
t - 16 = -3
Let's write 3:5 = 3k:5k. Then using perimeter formula, we can write that
and k=5 cm. The sides are 15 cm and 25 cm. The area is
Answer:
im thinking number #A but it also d