While looking at this problem, it is apparent that we will need to use Order of Operations to solve it, also known as PEMDAS (Please Excuse My Dear Aunt Sally)
Parentheses
Right off the bat, we can see that there is a pair of parentheses in this expression, so we must solve what's in those first.
3 * 63 = 189
Exponents
There are no exponents in this problem to worry about, so we can move on.
Multiplication/Division
At this point, the expression looks like this:
189 - 16 * 134
When there is a step that involves multiplication in the expression, that automatically gets taken care of first.
16 * 134 = 2144
Addition/Subtraction
Finally, we can solve the expression.
189 - 2144 = -1955
(3 * 63) - 16 * 134 = -1955
Hope that helped =)
Parallelogram area formula: bh
6*7=42
The area of the parallelogram is 42square meters
Answer:
( a+b) (a-b)
x^2 - 50
Step-by-step explanation:
The formula for difference of squares is
a^2 - b^2 = ( a+b) (a-b)
121x^2 -144 = (11x)^2 - 12^2 so this is the difference of squares
x^2 - 16y^2 = (x)^2 - (4y)^2 so this is the difference of squares
9x^2 -64 = (3x)^2-8^2 so this is the difference of squares
x^2 - 50 = (x)^2 - 2*(5)^2 this is not the difference of squares
Answer:
Henry's balloon was farther from the town at the beginning and Henry's balloon traveled more quickly.
Step-by-step explanation:
The distance of Tasha's balloon from the town is represented by the function y = 8x+ 20 ............. (1)
Where y is the distance in miles from the town and x represents the time of fly in hours.
So, at the start of the journey i.e. at x = 0, y = 20 miles {From equation (1)} from the town.
Again, Tasha's balloon is traveling at a rate of 8 miles per hour.
Now, Henry's balloon begins 30 miles from the town and is 48 miles from the town after 2 hours.
So, Henry's balloon traveling with the speed of miles per hour.
Therefore, Henry's balloon was farther from the town at the beginning i.e. 30 miles from the town. And Henry's balloon traveled more quickly i.e at the rate of 9 miles per hour. (Answer)