Answer:
$4.67
Step-by-step explanation:
First, add the price with the sales tax:
19(1.07)
= 20.33
To find how much she got back in change, subtract 20.33 from 25
25 - 20.33
= 4.67
So, she got $4.67 in change
Answer:
x^2 -2x + 1
Step-by-step explanation:
Think of a quadratic equation as
ax^2 + bx + c
x^2 -2x +
Comparing the two equations
a = 1 , b = -2, c = ?
c becomes the missing part
Divide b by 2
-2/2 = -1
square the result
-1^2
= 1 this is what to add to get a perfect square
x^2 -2x + 1
(x - 1)^2
Answer:
26 plus or minus 10 times the square root of 7
Step-by-step explanation:
X = 2.1 x tan(37)
x = 1.58 = 1.6
Answer:
Both common denominators and common multiples are found the same way, but a denominator is strictly on the bottom of a fraction while a multiple is not.
Step-by-step explanation:
To find a common denominator of two fractions, you find a number that both denominators of the given fractions will divide into.
