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3 years ago

How do you substitute the equation x=y-1

1 answer:

7 0

If you need to substitute the equation x = y - 1.
If you have another equation, then you would plug in y - 1 into the x value of the equation you would need to substitute into.

Hope this helps

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When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of

makkiz [27]

Answer:

$A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6$

Step-by-step explanation:

Let the function of quantity in the lung of air be A(t)

So $A(t) \alpha \sin (\frac{t - \alpha }{k} )$

so, A(t) = Amax sin t + b

A(t) = 2.8t⇒ max

A(t) = 0.6t ⇒ min

max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

$A(t) = 2.2\sin \frac{(t)}{k} + 0.6$

at t = 2 sec volume of a is 0.6

So function reduce to

$A(t) = 2.2\sin \frac{(t - 2)}{k} + 0.6$

and t = 5 max value of volume is represent

so,

$\sin \frac{t - \alpha }{k} = 1$

$\frac{t - 2}{k} = \frac{\pi }{2}$ when t = 5

$\frac{6}{\pi } = k$

so the equation becomes

$A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6$

7 0

3 years ago

You buy 6 pounds of apples for $33. what is the cost of 10 pounds of apples?

n200080 [17]

10 lbs of apples will cost $55

This is simple. First, you would need to find the unit rate, which is 5.5
You find the unit rate by simply dividing 33 by 6. Next, after you found your unit rate, you're going to multiply that by 10. We now know that 10 x 5.5= 55. Therefore, you will need $55 for 10 lbs of apples.

I hope I helped :)

7 0

3 years ago

A radio disc jockey has

Ierofanga [76]

4 rock, 2 reggae, 2 country...total of 8

P(1st song is reggae) = 2/8 which reduces to 1/4
P(2nd song is reggae) = 1/7

P(both events happening) : 1/4 * 1/7 = 1/28

3 0

2 years ago

Read 2 more answers

Solve the inequality using the properties of inequality ad graph the final solution set on a number line that you draw by hand?

Vikki [24]

I can't help really, in terms of showing steps because I haven't been taught this yet..

but using an online calculator... I found that x ≤ 20.

Graph:

|-----------------|-----------------|
-20 0 20

8 0

3 years ago

Using the divisibility test solve the following question:

Sauron [17]

Answer:

yes

Step-by-step explanation:

1512/6=252

3 0

3 years ago