We are trying to find it's speed which is measured in miles per hour or miles/hour
So: 375 miles/7 hours
This simplifies to 53.5714286 miles per hour.
Answer: Jack
Step-by-step explanation: This is because you already found out the 78% so therfore you have to find the decimals and then convert it to a percentage. the fraction (jack) converts to .875 which is 87.5%. Then the decimal is 73%.
This is a proportion problem the answer is 400 because inches over miles = 1 over eight equals to 5 over x you cross multiply and get x = 400
Slope-intercept form:
y = mx + b "m" is the slope, "b" is the y-intercept
For lines to be perpendicular, their slopes have to be the opposite/negative reciprocal (flipped sign and number)
For example:
slope is 2
perpendicular line's slope is -1/2
slope is -3/4
perpendicular line's slope is 4/3
#1: The slopes are the same, meaning they are parallel lines
#2: First isolate the "y" in the first equation
-4x + 5y = -5
5y = -5 + 4x
y = -1 + 4/5x They are not perpendicular because the slopes are 4/5 and -4/5
#3: Isolate "y" in the second equation
8y = 3x - 32
y = 3/8x - 4 They are perpendicular
#4: Isolate "y" is the 1st equation
10y = -9x
y = -9/10x They are parallel lines
The 3rd choice is your answer
Answer:
y = -4/5
Step-by-step explanation:
Both coordinates are negative in the 3rd quadrant. The value of y is the other leg of the right triangle with hypotenuse 1. The Pythagorean theorem is helpful.
y = -√(1 -(-3/5)^2) = -√(1 -9/25) = -√(16/25)
y = -4/5
