Answer:
16
Step-by-step explanation:
Remember to use pemdas:
8÷2(2+2)
First we do whats in parentheses.
= 8÷2(4)
Then we do multiplication and division from left to right
= 4(4)
= 16
So the answer is 16. Remember that multiplication and division have the same priority in pemdas, and you should always do them left to right, because order does matter.
d. y = 3/4x + 17/4.
To write the slope-intercept form y = mx + b of a line passing through (-3, 2) and (1,5).
First, we have to calculate the slope m.
m = (y₂-y₁)/(x₂-x₁), with (x₁, y₁) = (-3, 2) and (x₂, y₂) = (1, 5)
m = (5 - 2)/(1 - (-3))
m = 3/4
Second, we have to find the y-intercept.
y = mx + b, where m is the slope and b is the y-intercept.
Using one of the two ordered pair and plug it in for x and y in the equation y = mx + b.
Taking the ordered pair (1, 5):
5 = 3/4 (1) + b
5 = 3/4 + b
Solving for b
b = 5 - 3/4
b = [5(4) - 3(1)]/4
b = (20 - 3)/4
b = 17/4
Finally, write down the slope-intercept equation of the form y = mx + b, with m = 3/4 and b = 17/4:
y = mx + b
y = 3/4x + 17/4
Answer:
C
Step-by-step explanation:
Converting the numbers to either all percentages or all decimals can be easier. A) cannot be correct because the decimal is 1.18 is greater than the percentage 145%. B) also has the same problem as A) and the order is not from greatest to least. When converted to percentages C) is 145%, 125%, 118% and 85% so this is the correct answer.
Answer:
Step-by-step explanation:
I suspect that you actually meant C = 2π r, the formula for the circumference of a circle.
But if your C=2vpi r is correct, then dividing both sides of this equation by 2v*pi yields the desired equation:
C
r = ---------------
2v*pi
Answer:
1 hour 33 minutes
Step-by-step explanation:
distance/speed= time
d =800/600
d=1.33
