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Mashutka [201]
3 years ago
13

Find the exact value by using a half-angle identity. sin 22.5°

Mathematics
2 answers:
Alexeev081 [22]3 years ago
7 0
The answer is d. I just took the test.

castortr0y [4]3 years ago
4 0
I hope this helps you

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Suppose you add 10% of a number to the number, and then you subtract 10% of the total. Is the result greater than, less then, or
anyanavicka [17]
Let's say the number is 9. 10% of 9 is 0.9. Add that to 9 and you would get 9.9. 10% of 9.9 is 0.99. Subtract and you would get 8.91. Then you could do the rest.
5 0
3 years ago
What is the sum _71/6 +35/6 in the simplest terms ? Show your work
adoni [48]

Answer:

The answer in simplest term is 35.33333334.

Step-by-step explanation:

First, we need to divide 71 and 6.

71/6 = 23.66666667.

Now we need to divide 35 and 6.

35/6 = 11.66666667.

Now we need to add the two quotients.

23.66666667 + 11.66666667 = 35.33333334.

And that is the final answer.

I hope this helps!

7 0
3 years ago
Find the area of a parallelogram whose base is 12cm and altitude is 8cm. Also find the other base of its corresponding altitude
lukranit [14]

Answer:

Step-by-step explanation:

Area of parallelogram = base * height

                                    = 12 * 8

                                    = 96 cm²

Area of parallelogram = 96

base * height = 96

          base = 96/height

          base = 96/16

         base = 6 cm

6 0
3 years ago
Read 2 more answers
What shape is produced when slicing a right rectangular pyramid perpendicular to the base
vovikov84 [41]

For the most part, the cross-section formed is a <em>trapezoid</em>, but if the slice passes through the apex of the pyramid, that shape is a <em>triangle</em>.

(Image source: MathCaptain.com)

5 0
3 years ago
Calculate the perimeter of a regular pentagon which has a side of 9cm
Alisiya [41]
The answer is 45. there are 5 sides. each one is 9cm. 9*5= 45. 
hope this helps.
8 0
3 years ago
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