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kow [346]
3 years ago
9

Rewrite with only sin x and cos x. (6 points) cos 2x - sin x

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

The answer is a. cos2x - sin2x - sin x. Use the rule: cos2x = (cos^2)x - (sin^2)x. So, substitute cos2x in the expression: cos2x - sinx = ((cos^2)x - (sin^2)x) - sinx = (cos^2)x - (sin^2)x - sinx. Therefore, choice a. is correct choice.

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What is the graph of g(x)=(0.5)^x+3-4
Vedmedyk [2.9K]
That's a line:

g(x)=0.5*x-1, pick up some x, and get the y.

For instace: x=0, g(0)=y=-1, x=2, g(2)=y=0.

Two pints are enough for a line.
6 0
3 years ago
~Help me with this please! I will mark as BRANLIEST and if you answer correctly there would be a 55 point question for you!!!
4vir4ik [10]

Answer:

Simply here we use system of 2 equations.

Step-by-step explanation:

Let x be the cost of one small shirt and let y be that of one large shirt.

(4x +14y =210) (-3)

12x +11y =110

-12x - 42y= -630 note:cross 12x and - 12x

12x +11y =110

__________

-42y +11y = - 630 +110

-31y = -520

Y=520/31

Replace y in second equation:

12x +11y =110

12x +11(520/31) =110

12x +5720 =110

12x =110 - 5720/31

X= - 385/62

So one small shirt costs - 385/62 $

And a large one costs 520/31 $

Though I think there's something wrong in this problem since i verified my answer using calculator the same prices are obtained and as u see the cost of a small shirt is negative which is unbelievable.. So plz make sure from anyone else. I tried my best to help.

5 0
3 years ago
Bob's password consists of a non-negative single-digit number followed by a letter and another non-negative single-digit number
maw [93]

9/20 is the probability that Bob's password consists of an odd single-digit number followed by a letter and a positive single-digit number

It is given that bob's password consists of a non-negative single-digit number followed by a letter and another non-negative single-digit number (which could be the same as the first one).

P (odd single digit number )  =  ( 5 odd single digits / 10 non-negative single digits)  = (5/10)  = 1/2

P (positive single digit number ) =  (9 positive single digits / 10 non-negative single digits)  = 9/10

The total probability is   (1/2) (9/10)  =  9/20

Learn more about word problems here: brainly.com/question/21405634

#SPJ4

5 0
2 years ago
Can someone please help me with this???​
8_murik_8 [283]

there would be 38 woman

8 0
4 years ago
I need help with these questions
Gnesinka [82]
6. n=14
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4 years ago
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