Answer:
-7.5
Step-by-step explanation:
Put all the numbers in order (least to greatest)
-20, -15, -12, -10, -9, -6, -4, 14, 18, 18
Find the number in the middle
-9 and -6
Add -9 and -6 together and divide by 2 to get median.
-7.5
Answer:
Step-by-step explanation:
10 on the y axis and 5 on the x axis
2cos²x + cosx − 1 = 0
(cosx+1)(2cosx-1)=0
so cosx+1=0
or 2cosx-1=0
1) cosx+1=0
cosx=-1
x=π+2πk, k∈Z
2) 2cosx-1=0
2cosx=1
cosx=0.5
x=+-
, k∈Z
find value for the interval [0, 2 pi )
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Answer:
The value of a and b are; 4.8 and 10.8 respectively.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
We have been given a figure which shows that;
Let x, y z, and u lines are parallel.
Therefore, by using proportion we can say that
a/ 12 = 4/ 10
thus, a = 4/ 10 (12)
a =2(12)/ 5
a = 24/5
a = 4.8
Now, 12/b = 10/8
b = 12 (8/10)
b = 6(8)/ 5
b 54/5
b = 10.8
Hence, tha value of a and b are; 4.8 and 10.8 respectively.
More can be learned about proportions at;
brainly.com/question/24372153
#SPJ1
Answer:
I think 15 cubic meters might be wrong tho
Step-by-step explanation: