All categories

3 years ago

33. How will you check if your solution is correct?

Mathematics

1 answer:

Vsevolod [243]3 years ago

5 0

Answer:

you basically do the same things just backwards

Step-by-step explanation:

for example 9+9=18 well to double check your work all you do is flip to equation 18-9=9

You might be interested in

There are 100 chickens on a farm. 63 of those chickens laid eggs on

mafiozo [28]

Answer:

63%

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

I need help with this

igomit [66]

I think its 63 3x3x7

3 0

3 years ago

Lowering powers write in terms of first power of cosine. Cos^6

yaroslaw [1]

The main identity you need is the double angle one for cosine:

$\cos^2x=\dfrac{1+\cos2x}2$

We get

$\cos^6x=(\cos^2x)^3=\left(\dfrac{1+\cos2x}2\right)^3=\dfrac{(1+\cos2x)^3}8$

Expand the numerator to apply the identity again:

$\cos^6x=\dfrac{1+3\cos2x+3\cos^22x+\cos^32x}8$

$\cos^6x=\dfrac{1+3\cos2x+3\left(\frac{1+\cos2(2x)}2\right)+\cos2x\left(\frac{1+\cos2(2x)}2\right)}8$

$\cos^6x=\dfrac{1+3\cos2x+\frac32+\frac32\cos4x+\frac12\cos2x(1+\cos4x)}8$

$\cos^6x=\dfrac5{16}+\dfrac7{16}\cos2x+\dfrac3{16}\cos4x+\dfrac1{16}\cos2x\cos4x$

Finally, make use of the product identity for cosine:

$\cos2x\cos4x=\dfrac{\cos6x+\cos2x}2$

so that ultimately,

$\cos^6x=\dfrac5{16}+\dfrac7{16}\cos2x+\dfrac3{16}\cos4x+\dfrac1{32}\cos2x+\dfrac1{32}\cos6x$

$\cos^6x=\dfrac5{16}+\dfrac{15}{32}\cos2x+\dfrac3{16}\cos4x+\dfrac1{32}\cos6x$

4 0

4 years ago

I don't understand this question can you help me pls?

Aliun [14]

Answer:

the answer for the number of stickers in all 4 boxes is 1200.

Step-by-step explanation:

there are 100 stickers in each roll and a box has 3 rolls. There are 12 rolls in total so you would do 100 X 12 which is 1200.

8 0

3 years ago

One number is 6 less than 3times another number and their sum is 62. Find the numbers.

eduard

Answer: x=17, y=45

Explanation: Let the numbers be x and y.

We have,

3x−6=y

Also, x+y=62

Thus, x+3x=62+6

Or, x=17

Putting in the required values, we get y as 45

4 0

4 years ago

33. How will you check if your solution is correct?​

33. How will you check if your solution is correct?