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mariarad [96]
2 years ago
8

PLEASE HELP: if √3 cos x - sin x = B cos(x+θ), show that b cosθ = √3 and b sin θ = 1

Mathematics
1 answer:
Lesechka [4]2 years ago
7 0

Step-by-step explanation:

See attached image for proof

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Jessica and Josh are selling Entertainment Books to raise money for the art room at their school. One book sells for $15. Jessic
melisa1 [442]
<h2><u>Answer</u><u>:</u><u>-</u></h2>

Jessica sells = 240 books,

Josh sells = 16 books.

<h3>Given:-</h3>

The price of one book is = $15

Jessica sold 15 times more books than Josh.

In total, they have sold 256 books.

<h3>Solution:-</h3>

We can easily find the answer using variables.

Let,

Josh sold a total of x books whereas Jessica sold a total number of 15x books.

together they sold 16x books.

So we can form the equation

16x= 256

by solving this equation we will get x=16

So, Josh sold 16 books and Jessica sold 16×15=240 books in total.

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2 years ago
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Which fraction is equivalent to 5(z+3)-4(1+p)?<br><br> A. 15z-4p<br> B. 5z+19+4p<br> C. 5z+11-4p
Mila [183]
C 5z+11-4p.

5(z+3)-4(1+p)
5z+15-4-4p
5z+11-4p
8 0
3 years ago
What is the value of the expression <br><br> 3.2(2.3)-4.8
Artist 52 [7]
The value of the equation is 2.56
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3 years ago
Find the domain of the rational function 9x/(x+5)(x+3)
xenn [34]

Answer:

the domain is : D = ]-∞ , -5[ U ]-5 , -3[ U ]-3 , +∞[

Step-by-step explanation:

hello :

f(x) = 9x/(x+5)(x+3)

f exist for : (x+5)(x+3) ≠ 0

(x+5)(x+3)=0

x+5=0 or x+3=0  means : x= - 5 or x= -3

the domain is : D = ]-∞ , -5[ U ]-5 , -3[ U ]-3 , +∞[

7 0
3 years ago
F(x) = 4x + 3 for f(-8).
yarga [219]

Answer:

-29

Step-by-step explanation:

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3 years ago
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