Answer:
Porportional
Step-by-step explanation:
-1 x = -15 y
-7 x -15 = -105, correct
-9 x -15 = -135, correct
Because all are correct, this is porportional. This means that there is a unit rate and if this were graphed, the line would be straight.
I Hope That This Helps! :)
1. Find Slope
m = y2-y1/x2-x1
m = -6 - 5/2-4
m = -11/-2
m = 11/2
2. Write equation with know information
y = mx + b
y = 11/2x + b
3. Choose any of the two points (doesn’t matter which in you choose) and replace the x and y value into the equation
y = 11/2x + b (4,5)
5 = 11/2(4) + b
5 = 22 + b
Use algebra and solve for b
5 - 22 = b
b = -17
State all the information you know
m = 11/2 b = -17
Write the equation
y = 11/2x - 17
It is 28.8 because if you do 48% * 60 you get 28.8 =)
Answer:
Sandra is winning because she is generally closer to the center.
Step-by-step explanation:
We will compare the means of both sets of data. To find each mean, we find the sum of the data points and divide by the number of data points.
For Denise:
(112+116+125+119+131)/5 = 603/5 = 120.6
For Sandra:
(124+120+110+126+118)/5 = 598/5 = 119.6
Since Sandra has the smaller mean, this means on average her scores are closer to center than Denise's. This means she is winning.
Answer:
30.03 degrees
Step-by-step explanation:
You have labeled this diagram correctly.
The trig function that links the side opposite the angle x and the length of the shadow is the tangent function.
Here, tan x = (opposite side) / (adjacent side) = (10 m) / (17.3 m), or 0.578.
Starting from tan x = 0.578, use the inverse tangent function to find the angle, first in radians and then in degrees:
arctan 0.578 = 0.524 radians
Converting this to degrees yields 30.03 degrees. This is the angle of elevation of the sun from the horizontal, from the point where the observer is standing.