Answer:
QTS=STQ=STR
Step-by-step explanation:
Here we are finding the area of the given
The area of a rectangle is
A = L*W
The image shows that we have to find the area of the two rectangles total
so
Total A = (L1*W1) + (L2*W2)
Total A = (4 * 6) + (3 * 2)
Total A = 24 + 6
Total A = 30
The total area of the given figure is 30 sq. cm.
Hope this helps :)
Answer:
P(X<118.81)=0.0803
Step-by-step explanation:
Assuming the distribution for the mean life is approximately normal, with mean 120 months and variance 64 months^2, we can calculate the parameters for a sampling distribution with sample size = 89 computers.
The sampling distribution mean will be equal to the mean for a single computer:
The standard deviation will be adjusted by the sample size as:
With these parameters, we can calculate the z-score for X=118.81.
Then, the probability that the mean of a sample of 89 computers is less than 118.81 months is:
Wendy spent four hours on the train.
If the...
Train Speed= 60 mph
Train Time= x
Bus Speed= 40 mph
Bus Time= 5.5-x
Total Time= 5.5 hr
and
Total Distance= 300 miles
Then we can put all of that into the equation...
60x + 40(5.5-x)= 300
Now, following the order of operations we can free the x from the parenthesis by multiplying 40 by 5.5 and (-x) to get...
60x + (-40x) + 220= 300
Next we can simplify by adding the 60x and (-40x) to get...
20x + 220= 300
After that we need to get the x alone on the left side. To do this we must use reverse order; if we subtract 220 from 220 on the left side and then we can subtract 220 from 300 on the left side. Remember the Golden Rule of Algebra! If you add, subtract, multiply, divide, or raise to a power on one side you must do it on the other! This gives us...
20x + 220 - 220= 300 - 220
20x= 80
Now all that is left to get x all alone on the left is to look back at the golden rule of algebra and divide 20 from both 20x and 80. Which gives us...
20x/20 = 80/20
x= 4
And that gives us our answer! 4 hours :D
Hope this helped!
Answer:
y= 1/2x - 1
Step-by-step explanation:
TO FIND SLOPE: Count the rise over run. Rise= how much the next point RISES (on the y axis). Run= how much the next point RUNS (moves on the x axis)
TO FIND Y-INTERCEPT: Where the line meets the y axis. We see that the line crosses over on the -1.
