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aniked [119]
3 years ago
13

\cos (x-10\deg )=(\sqrt(3))/(2)

Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0

Answer:

40°

Step-by-step explanation:

\cos (x-10\degree )= \frac{ \sqrt{3} }{2}  \\  \\ \cos (x-10\degree )=\cos 30\degree  \\  \\ x-10\degree  = 30\degree \\  \\ x = 30\degree + 10\degree \\  \\ x = 40\degree

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What is 153 sixteenths as a mixed number
AURORKA [14]
To reduce a fraction divide the numerator and the denominator by their greatest common factor, GCF. ... The numerator and the denominator of the fraction are coprime numbers (no common prime factors, GCF = 1), the fraction cannot be reduced (simplified): irreducible fraction.
4 0
3 years ago
1+4=5<br> 2+5=12<br> 3+6=21<br> 8+11=?
MariettaO [177]
Oh, I SEE what da pattern is! =D
You see, like in this problem:
2 + 5 = 12
They did 5 times 2 = 10, plus da 2 in da problem = 12.
Same with 3 + 6 = 21, 6 times 3 = 18, 18 plus da 3 given in da problem = 21.
Just like 1 + 4 = 5, 4 times 1 = 4, plus da 1 in da problem = 5.
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I hope I helped! =D
6 0
3 years ago
What precent is 12 outta 40
Lubov Fominskaja [6]

Answer: 30%

Step-by-step explanation:

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= 30%

5 0
3 years ago
Read 2 more answers
Match the phenomenal expression on the left with the simplified version on the right
nalin [4]

Given the polynomial expression:

(y + 5)²

(y - 5)(y + 5)

Let's simplify each of the given expression:

a.) (y + 5)²

The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

\text{ (a+b)}^2\text{ = }a^2\text{ + 2ab + }b^2

We get,

\mleft(y+5\mright)^2=(y)^2+2(y)(5)+(5)^2(y+5)^2=y^2+10y+25

b.) (y - 5)(y + 5)

To be able to simplify the following expression. We will be using the formula for the difference of two squares.

(a+b)(a-b)=a^2-b^2

We get,

\mleft(y-5\mright)\mleft(y+5\mright)=(y)^2-(5)^2(y-5)(y+5)=y^2-25^{}

8 0
1 year ago
Dr. Smith's office is open 8 hours a day. The doctor allows 25 minutes for office
Viefleur [7K]

Answer:

Step-by-step explanation:

6 0
3 years ago
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