Standard the random variable
using the transformation
where
and
are the mean and standard deviation of
, respectively.
Now, you can recall that for any normal distribution, approximately 95% of its data falls within 2 standard deviations of the mean, so to either side, there is approximately 2.5% of data that falls below 2 standard deviations from the mean, and 2.5% that falls
above
. In other words,
.
1. find the sum of angles .
If the sum=180,then it forms a triangle.
2. your answer is wrong.
sum of three angles=180
and find x.
3.find the sum of two sides and see if it is > third angle
then it forms a triangle.(repeat with different pairs)
4.fourth case
Answer:
17.30 dollars
Step-by-step explanation:
Given that Payton and James mow the lawns.
They do this during summer.
The amount they spend are:
Gas cost = 3.50
Leaf bags = 1.20
Add these to get total costs
Total cost = 4.70
Charge they get per lawn = 22.00
Profit = Revenue - cost
Here revenue per lawn = 22 and cost per lawn = 4.70
Hence profit = 22-4.70 = 17.30 dollars.
Answer is they make 17.30 dollars per lawn.
Answer:
168
Step-by-step explanation:
You multiply all the number together.
Answer:
Step-by-step explanation:
You should know your interior/ exterior angles as well as vertical angles and corresponding angles for this. if that's unfamiliar I can explain .
10) You have two parallel sides, AB and DC. If you pretend that they went on forever like lines, you would have BC as the transversal. With this you would get angles B and C as interior angles. Specifically consecutive interior angles, so they should add up to 180. With that you solve x + x - 50 = 180. Once you find x angles B and C will be easy.
Once you find those two angles you need to know quadrilaterals have an angle sum of 360, and since you will then know three of the angles, since you know angle D is 90, you will be able to find angle A with 90 - (B + C + D). A hint though, you already know B + C is 180 and D is 90.
11) You can use the same kind of thinking as 10 here. AB or DC will be the transversal here. Witht hat you know 5x + 4x = 180. Do let me know if there's something you don't understand.
12) here you can clearly see x+y = 180, since together they make a straight line. then we have another transversal going through two parallel lines. Not labeled, but the line with the arrows at either end is the transversal we will be using. With this we see the angle with measure x and the angle with measure 3y are corresponding angles. So x = 3y. Well if x = 3y then x+y = 3y + y = 4y = 180. This way you can find y and then plug that in to find x.
Hopefully I explained that clearly enough, but again, let me know if I did not.