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lesya [120]
3 years ago
14

Which of the following cannot be solved using nPr?

Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

permutations of the letters of the word "PERMUTATION"

Step-by-step explanation:

Thats cause the word has two t's and some permutations are going to be the same, you have to substract some to get the actual answer.

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Please help me with this I’m confused please explain
Maksim231197 [3]

Answer:

25. If you look at angle B from the first figure you see a square that indicates a 90 degrees angle, thus the figure shown is a right triangle. You can also see that angle C is said to have 60 degrees. a right triangle has a total angle of 180 degrees. so, 180 - 90 - 60 = 30 degrees. Therefore, angle A is 30 degrees.

27. Now you want the measure of the hypotenuse, and you know this a right triangle. so, simply use the law of sines to find the measure of AC :

4cm/sin(60) = AC/Sin90

AC = 4.62 cm

29. angle z is in the other figure and same stuff, just substract the angles, you have 90 degrees and 30 degrees... 180 - 90 - 30 = 60 degrees

31. Angle Y = 90 degrees

this value is already given, it's the little square that indicates a 90 degrees angle.

26. 5 cm

28. 90 degrees

30. You already found AC, use the pythagorean theorem. sqrt((4.62)^2 - 4^2) = 2.31 cm

32. use pythagoras again, square root(5^2 - 3^2) = 4

So as you can see all the measurements are the same because if you see at the very top of your figures it says ABC = XYZ which means pretty much that they have the same values (notice that there is a little something added to the = sign, watch out for that because that's what indicates that two figures are equal in terms of angles and measures.

7 0
3 years ago
What is the volume of this cube?
Klio2033 [76]

Answer:

it's 6 cubic feet look you must count all the sides together also I took the test this cube has 6 sides so your answer will be 6 cubic feet ;)

Step-by-step explanation:

6 0
3 years ago
A rancher has 200 ft of fencing to enclose two adjacent rectangular corrals.
ipn [44]
I'm calculated and I figure that it's graphing
8 0
3 years ago
Can you solve it ????
Dima020 [189]
Angle ABD=87 degrees
angle ABC+angle CBD= angle ABD
Therefore, 9x-1+6x+58=87
15x+57=87
15x=87-57
15x=30
x=30/15
x=2   


Angle ABC= 9x-1
=9(2)-1
=18-1
=17 degrees


7 0
3 years ago
9x10^2 is how many times as much as 3x10^-2
Nikolay [14]

Answer:

3 times

Step-by-step explanation:

divide both numbers Which will give you 3

4 0
2 years ago
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