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marusya05 [52]
2 years ago
11

Sin^2x+2Sin^2x/2-2sinx.sin^2x/2+cotx=0

Mathematics
1 answer:
Schach [20]2 years ago
4 0
{0.221115
{x=2.677945 is the awnser for this one
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i need help with this questions asap please. A grocery clerk is making a display of oranges. The numbers of oranges in the layer
ahrayia [7]

Answer:

If there is 1 at the top, then you have 1, then 2, then 3, etc.

total number of oranges equals:

1 + 2 + 3 + ... + 16 + 17 + 18 <-- stop at  18 because this is the number of oranges at the base

You can use the formula:

sum of first n numbers = n*(n + 1)/2

-->

18*19/2 = 9*19 = 171

or you can figure it out (basically derive the above formula):

you have:

1 + 18 = 19

2 + 17 = 19

3 + 16 = 19

...

How many pairs do you have?  Well, it's just the number of numbers: 1-18 = 18 numbers (divide by 2) = 9 pairs)

9 pairs of 19 = 9 * 19 = 171

Hope this helps!

Step-by-step explanation:

3 0
3 years ago
Evaluate if a= -21 a/3+a=
ioda
The answer is -28
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3 years ago
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Which of the following is most likely the next step in the series?
lilavasa [31]

Answer:

B

Step-by-step explanation:

Hi there!

TL;DR: Observe the vertices of the shapes inside the circles and their relationship with the circle.

For the first figure, the rectangle has 4 vertices and there are 4 dots on the perimeter of the circle.

For the second figure, the triangle has 3 vertices and there are 3 dots on the perimeter of the circle.

For the third figure, the line has 2 points and there are 2 dots on the perimeter of the circle.

For the fourth figure, there would most likely be only one dot on the perimeter of the circle (4, 3, 2, 1). The only option that shows this is B.

I hope this helps!

3 0
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Step-by-step explanation:

maybe 8 or 1/9

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3 years ago
Is 7- y=5x+11 a standard form
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No.

Step-by-step explanation:

Because standard form is ax+by=c.

6 0
3 years ago
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