Answer: x = -4
Step-by-step explanation:
3x + 5 = 2x + 1
3x - 2x = 1 - 5
x = -4
The actual building is 220 foot high.
We can use the proportion:
H : W = 25 in : 10 in
220 : x = 25 : 10
220 * 10 = 25 x
2,200 = 25 x
x = 2,200 : 25
x = 88 ft
Answer: The actual building is 88 ft wide.
Answer:
y=8
Step-by-step explanation:
if y = -x +7
then
y= 1 + 7 cause we know x = -1 so negative x is 1
so 1+7=8
so y = 8
hope this helped :)
Given:
The speed, s, is measured in miles per hour, and distance, y, is measured in yards.
The regression line is given by
...(i)
To find:
The slope and y-intercept of the regression line.
Solution:
The general form of linear regression line is
...(ii)
where x is variable. In the given equation the variable is denoted by s.
On comparing (i) and (ii), we get
![a=4.17, b=52.45](https://tex.z-dn.net/?f=a%3D4.17%2C%20b%3D52.45)
It means slope is 52.45 and y-intercept is 4.17.
The slope, b = 52.45, indicates that the distance increases by 52.45 yards for every one mile per hour of speed.
The y-intercept, a = 4.17, is the distance estimated by this model if the speed is zero miles per hour.
Therefore, the correct option is A.
There are 5 numbers and 5 colors
Total outcomes is numbers x colors
Total outcomes = 5 x 5 = 25
Answer: 25