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katovenus [111]
3 years ago
6

20 POINTS!

Mathematics
1 answer:
mylen [45]3 years ago
4 0
Option 1.
sin(2x) = 2sin(x)cos(x)
cos(2x) = 1 - 2sin(x)^2
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1)The original price of concert is $100. They are on sale for 21% off. How much will the tickets cost after the discount? 2)Ms.B
mel-nik [20]
1.  79%  Take 100 x 21%=21, then subtract 21 from 100 = 79
2.  $138  Take 1200 x 11.5%= $138
3 0
3 years ago
I dont know why it says im in high school im in middle school. But anyways can someone please explain how to get percentage.
tigry1 [53]

Answer:

Step-by-step explanation:

To change a decimal into a percent you multiply by 100.

If there is a fraction that you need to convert into a percent. Completely divide the fraction. 4/5 = 0.8 then multiply by 100 you get 80%. This means that 4 is 80% of 5

6 0
2 years ago
Read 2 more answers
5. (Hint: Be sure to know what exactly you are expected to compute.) *
Marrrta [24]

Answer:

A: 46 yd

Step-by-step explanation:

Hopefully this helps!

4 0
3 years ago
G(n)=-50-15n(n)=−50−15n, Complete the recursive formula of g(n)
UkoKoshka [18]

Answer:

  g(1) = -65; g(n) = g(n-1) -15

Step-by-step explanation:

Using n = 1, 2, 3, we can find the first three terms of the sequence:

  g(1) = -50 -15 = -65

  g(2) = -50 -15(2) = -80

  g(3) = -50 -15(3) = -95

The first term of the arithmetic sequence is -65, so that is g(1). Each next term is 15 less than the one before, so the recursive formula is ...

  g(n) = g(n-1) -15

The complete recursive function definition requires both parts:

  g(1) = -65

  g(n) = g(n-1) -15

8 0
3 years ago
The double number line shows the price of
Alex777 [14]

Answer:

According to the first image, 1 cupcake costs $1.5.

So, we can use the rule of three to complete the table.

If 1 cupcake costs $1.5, 5 cupcakes would be $1.5(5)=$7.50

And 18 cupcakes would be $1.5(18)=$27.

However, $18 how many cupcakes represent?

\frac{18}{1.5}=12

Therefore, 12 cupcakes costs $18.

So, the table would be:

Cupcakes     Prices

      5             $7.50

     12             $18

     18             $27

8 0
3 years ago
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