The answer will be <span>sin<span>(<span>−1</span>)</span></span>−32<span>=<span>−<span>32.841471 Im not sure but thats what i think</span></span></span>
Answer:
x=1
Step-by-step explanation:
5x1=5
Answer:
Slope= -5
Step-by-step explanation:
The formula for slope= (y2-y1)/(x2-x1)
First you label your points:
X1=-9
Y1=6
X2=-6
Y2=-9
Next you plug in your points and solve
-6-9=-15
-6-(-9)=3
And finally, you simplify
Slope= -15/3=5
If possible, please mark brainliest.
9514 1404 393
Answer:
- airplane: 225 mph
- wind: 45 mph
Step-by-step explanation:
The average speed with the wind is (540 mi)/(2 h) = 270 mi/h.
The average speed against the wind is (540 mi)/(3 h) = 180 mi/h.
Let a and w represent the speeds of the airplane and wind, respectively.
a + w = 270 . . . . speed with the wind
a - w = 180 . . . . speed against the wind
2a = 450 . . . . . . sum of the two equations
a = 225 . . . . . . divide by 2
w = a -180 = 45
The speed of the airplane is 225 miles per hour; the speed of the wind is 45 miles per hour.
Answer:
Mean: 40.17 years.
Standard deviation: 10.97 years.
Step-by-step explanation:
The frequency distribution is in the attached image.
We can calculate the mean adding the multiplication of midpoints of each class and frequency, and dividing by the sample size.
The midpoints of a class is calculated as the average of the bounds of the class.
Then, the mean can be written as:
The standard deviation can be calculated as: