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lana66690 [7]
3 years ago
9

Find the greatest maximum y-value of the following equation:

Mathematics
1 answer:
KatRina [158]3 years ago
5 0
A quick way to do this is by recalling the fact that -1\le\cos x\le1, so the largest value that \cos ax alone (for any real value of a) can take on is 1.

This means -3\le3\cos2x\le3, and so 1\le3\cos2x+4\le7.

So the maximum value of this function is 7.
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Out of 10 students, 2 will be chosen to ride in a car instead of a van on an upcoming field trip. Which statement best describes
Rudiy27

Answer:

D

Step-by-step explanation:

Firstly, since it is a selection question, we shall be using a combination approach.

So here we are trying to select the best answer that describes that 2 out of 10 students are selected.

Let’s consider the scenario below;

selecting r out of n can be resolved using the combination nCr

= n!/(n-r)!r!

Now in this case, our n = 10 and r = 2.

Thus, 10C2, we have ;

10!/(10-2)!2! = 10!/8!2! = (10 * 9 * 8!)/8!2! = (10 *9)/2! = 90/2 = 45

Thus, 10C2 = 45

Here, the order of selection does not matter as we can select in random fashion. This makes option D correct

8 0
3 years ago
Explain how you can round 25.691 to the greatest place.
labwork [276]
If it is to the tenth, then you have to look at the hundredth place, if the number in the hundredth place is over 5 or 5, then you have to make the number in the tenth place move up one digit if it isn't over 5 or 5, then you don't do anything
4 0
3 years ago
Read 2 more answers
10. Name the one example of Analog computer​
BartSMP [9]

Answer:

example of Analog computer=

Operational amplifiers

6 0
3 years ago
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The largest angle is a triangle is 110°. Of the remaining two angles, one is 4° less than the other angle. Find the
Masja [62]

Answer:

Do 180-110=70 Then have it where 70/2=35. 35+4=39, 35-4=31, so the three angles are 39, 110, and 31.

Step-by-step explanation:

7 0
3 years ago
The linear combination method is applied to a system of equations as shown.
olga_2 [115]
If you apply the linear combination method to the system like:
<span>4(.25x + .5y = 3.75) → x + 2y = 15
(4x – 8y = 12) → x – 2y = 3
2x = 18
Then you can be sure that the solution of all this system is: (9,3). Hope this si what you were looking for</span>
7 0
3 years ago
Read 2 more answers
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