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Alla [95]
4 years ago
6

There is a photo attached

Mathematics
1 answer:
MatroZZZ [7]4 years ago
8 0

cos(2x+x)

=cos (2x)cosx-sin(2x)sinx

=(1-2sin^2x)cosx-2sinxcosx*cos x

=cos x-2 sin ^2 x cos x-2 sin^2 xcos x

=cos x-4sin^2 x cos x

=cos x {1-4(1- cos ^2 x)}

=4 cos ^3x -3 cos x

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The original price for a jacket was 124.95. It is on sale for 20% off. Witch of the following gives the best estimate of the sav
d1i1m1o1n [39]
20% of 124.95 is close to $125 so that is equal of 12.50 of 10% so multiply by 2 which is $25.00 so the estimate discount of the jacket will be $25.00
7 0
3 years ago
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Anna said that the product of 7/8x 1/2=7/2
artcher [175]
Ana is false. The answer is 7/16 because 7*1=7 and 8*2=16
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4 years ago
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Solve Please. No Links. Links = Report.
AfilCa [17]

Answer:

Step-by-step explanation:

The easiest way to start is to do this problem is to start changing the 3/4 cup to a decimal

3/4 = 0.75

Now divide that into 11. What you are interested in is the remainder.

11/0.75 = 14.66667

He can make 14 whole pizzas.

He has 0.66667 of a cup left over which is less than 3/4 (or 0.75) so he does not have enough for another pizza.

So the answer is 0.66667 which is 2/3 of a cup is left over.

7 0
2 years ago
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Answer:

1. I would think it would be a appropriate to use a normal model to figure this out because sometimes when you are using stuff online you can get the same number like 20 times in a row, whereas, if you use a real dice, you most likely won't roll the same number 20 times.

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6 0
3 years ago
Please need help i need help i need help
xeze [42]

Set each expression from the parentheses equal to 0 separately like so:

Equation 1: x - 4 = 0

Equation 2: -5x + 1 = 0

Now for each equation solve for x!

Equation 1:

x +(- 4 + 4) = 0 + 4

x = 4

Equation 2:

-5x +( 1-1) = 0 - 1

-5x/ -5 = -1 / -5

x = 1/5

Check:

(4 - 4)(-5*4 + 1)

(0) (-20 + 1)

(0) (-19)

0 = 0 -------------------------> correct!

(1/5 - 4)(-5 * 1/5 + 1)

(-19/5)(-1 + 1)

(-19/5)(0)

0 = 0 -------------------------> correct!

smaller x = 1/5

larger x = 4

Hope this helped!

8 0
3 years ago
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