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2 years ago

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If you are rally good at math ( transformations of functions ) can you comment on this so I know if someone will help in a timel

y manner
when I post the paper I will set it for around 200 points if it lets me

1 answer:

FromTheMoon [43]2 years ago

8 0

Just post the math paper or question we'll help you

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Solve |2x - 5| = 4.

vladimir1956 [14]

Decimal form: 4.05, 0.5
Exact form: 9/2, 1/2

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2 years ago

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Yutaka enjoys running. For every kilometer he runs, he burns 65 calories. He wrote this equation to find how many calories he bu

koban [17]

Answer:

(k): 65k=c is true per kilometer he runs,

Step-by-step explanation:

(k): 65k=c is true if Yutaka was to walk and burn only 48 calories then k then is x= walk and y = run 8x+7y>= c 8x+7y>= 8(48) + 7(65) >= 839

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1 year ago

Identify each value for x that makes the inequality true.

yulyashka [42]

Answer:

if it is multiple choice:

x=2

x=3

Step-by-step explanation:

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2 years ago

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Look at the image. (calculus)

mash [69]

<h3>Answer: Choice H) 2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is $\sin^2 x + \cos^2x = 1$

If we were to isolate sine, then,

$\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\$

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, $\cos x = \sqrt{1-\sin^2x}\\\\$

Cosine is also positive in this quadrant.

-------------

So,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2$

Therefore,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2$

is an identity as long as 0 < x < pi/2

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1 year ago

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Ben has 3 times as many guppies as goldfish if he has a total of 20 fish how many guppies does have?

kondor19780726 [428]

Guppies: u
Goldfish: o

3 times as many guppies as goldfish
3*o = u (there are more guppies than goldfish)

o + u = 20
o = 20 - u

Substitute in (20 - u) for o in the first equation and solve:
3* (20 - u) = u
60 - 3u = u
60 = 4u
u = 15

He has 15 guppies. Then substitute in the number of guppies into either equation to find the number of goldfish:
o + u = 20
o + (15) = 20
o = 5

Hope this helps! :)

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2 years ago