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3 years ago

Can someone help I think I know the answer but I have one more time to get it wrong

Mathematics

2 answers:

zvonat [6]3 years ago

8 0

Answer:

23+(6x+1)=90 is the equation

Step-by-step explanation:

dimulka [17.4K]3 years ago

3 0

Answer:

6x+24 = 90

x=11

Step-by-step explanation:

6x+1+23 = 90

=> 6x+24 = 90

6x = 66

x= 11

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A video game is on sale for 25% off the original price is 42 what is the discount what is the sale price

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$31.5, because that's the answer.

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The attendance at a seminar in year 1 was 500. In year 2, the attendance changed by 100. What was the percent change in attendan

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20%

Step-by-step explanation:

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3 years ago

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4 years ago

I have this calculus problem that I’m having trouble with. I’m not allowed to use the power rule. I need to use the formula s’(t

qaws [65]

Step-by-step explanation:

Know that

The derivative of position with respect of t is velocity.

Or if you want to say

$\frac{d}{dt} (s(t) = v$

Or in the form of the definition of the derivative

$s'(t) = \frac{6 (t + h) {}^{3} + 2(t + h) + 9 - (6 {t}^{3} + 2t + 9) }{h}$

$s'(t) = \frac{6 {t}^{3} + 18t {}^{2}h + 18h {}^{2} t + 6 {h}^{3} + 2t + 2h + 9 - (6 {t}^{3} + 2t + 9)}{h}$

$s'(t) = \frac{18 {t}^{2}h + 18h {}^{2}t + 6h {}^{3} + 2h }{h}$

$s'(t) = 18 {t}^{2} + 18th + 6h {}^{2} + 2$

Let h be a small number, so we can cancel out small things.

$s'(t) = 18 {t}^{2} + 2$

We know the derivative of position is velocity

$v = 18 {t}^{2} + 2$

So the velocity at time t is

$v = 18 {t}^{2} + 2$

Plug in 3 for t to find the velocity

$v(3) =18(3) {}^{2} + 2$

$v(3) = 164$

So the velocity at t=3, is 164.

Next, the derivative of velocity is acceleration so

$v'(t) = \frac{18(t + h) {}^{2} + 2 - (18 {t}^{2} + 2)}{h}$

$v'(t) = \frac{18 {t}^{2} + 36ht + 18 {h}^{2} + 2(- 18 {t}^{2} + 2 ) }{h}$

$v'(t) = \frac{36ht + 18 {h}^{2} }{h}$

Divide by h.

$v'(t) = 36t + 18h$

$v'(t) = 36t$

The derivative of velocity is acceleration so

$a = 36t$

The acceleration in time t is

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To find acceleration, plug in 3 for t.

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3 years ago

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Sedbober [7]

Answer:

13:21

Step-by-step explanation:

Change it into an improper fraction

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