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Sunny_sXe [5.5K]
3 years ago
13

Sin (22°) = cos (x)

Mathematics
1 answer:
ella [17]3 years ago
7 0
Sin(x)=cos(90-x); therefore x=68º
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Multiply 4x(-3x - 5)
Scilla [17]
Using the distributive property the product is -12x-20. To distribute you take the numbers and or variables outside of the paranthesis and multiply it by each one in the parenthesis  such that 4x is multiplied by -3x getting -12x and multiplying 4x by -5 and the product is -20x and all together the answer is -12x-20
6 0
3 years ago
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What is the surface area of a cylinder with base radius 4 and height 5?
seropon [69]

Answer:

Solution given:

radius [r]=4

height [h]=5

we have

Surface area of cylinder=2πr(r+h)

=2π×4(4+5)

=<u>72πunits³ is a required volume.</u>

7 0
2 years ago
What is 25% of 200?<br> I need help pleaseeeeeeeeeeeeeee!
victus00 [196]
25/100*200 gives the answer which is 50
8 0
3 years ago
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The product of a number, x, and 18 is 113.4. Which equation and value of x represent this relationship?
KIM [24]

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42

Step-by-step explanation:

5 0
3 years ago
If zeina has seven times as many books as ali if zeina gave ali 15 books they would eash have the same number of books how many
kramer

Answer:

<em>Zeina had 35 books and Ali had 5 books</em>

Step-by-step explanation:

<u>Equations</u>

We know Zeina has seven times as many books as Ali. If we call

x = Number of books Ali has

Then Zeina has

7x = Number of books Zeina has

We also know if Zeina gave Ali 15 books, they would have the same number of books, thus:

x + 15 = 7x - 15

Adding 15:

x + 15 +15 = 7x

Subtracting x:

15 +15 = 7x - x

Operating:

30 = 6x

Dividing by 6:

x = 30 / 6

x =5

7x = 35

Thus Zeina had 35 books and Ali had 5 books

8 0
2 years ago
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