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3 years ago

Can someone help me out?

Mathematics

1 answer:

Galina-37 [17]3 years ago

6 0

Answer is 7pi (you had my explanation earlier)

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8x + 4 - 3 - x<br> PLEASE solve it!!!!

leva [86]

8x - x + 4 - 3
= 7x + 1

6 0

2 years ago

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A Ferris wheel has a radius of 10 m, and the bottom of the wheel passes 1 m above the ground. If the Ferris wheel makes one comp

Volgvan

Answer: $1+10(1-\cos (\frac{\pi t}{9}))$

Step-by-step explanation:

Given

radius of wheel $r=10 m$

Time period of Wheel $T=18 s$

and $T\cdot \omega =2\pi$ , where $\omega =angular velocity of wheel$

$\omega =\frac{2\pi }{18}$

Let at any angle $\theta$ with vertical position of a point is given by

$x=r\sin \theta$

$y=y_0+r(1-\cos \theta )$

and $\theta =\omega \times t$

for velocity differentiate x and y to get

$v_x=r\cos \theta =r\cos (\omega t)$

$v_y=0+r(\sin \theta )=r\sin (\omeag t)$

Height at any time t is given by

$h=1+10(1-\cos \theta )=1+10(1-\cos (\frac{\pi t}{9}))$

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20-%206%20%2B%2012" id="TexFormula1" title=" - 6 + 12" alt=" - 6 + 12" align="absmiddle" clas

Nady [450]

6 is the answer

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

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3 years ago

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Solve algebraically: <br> Y = x^2 + 5x - 17 <br> Y = x - 5

Ksenya-84 [330]

Answer:

Step-by-step explanation:

What you could do is fill in 2 for the equation and y would equal -3 so for the first one it's like

y= 2^2 + 5(2) -17

y= 4 + 10 - 17 which turns into y= -3

In the second y it would be something like

y= 2 - 5 which would equal y= -3

so x=2

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3 years ago

Verify the identity. <br> tan (x + pi/2) = -cot x

Leno4ka [110]

$\tan\left(x+\dfrac\pi2\right)=\dfrac{\sin\left(x+\frac\pi2\right)}{\cos\left(x+\frac\pi2\right)}=\dfrac{\sin x\cos\frac\pi2+\cos x\sin\frac\pi2}{\cos x\cos\frac\pi2-\sin x\sin\frac\pi2}=\dfrac{\cos x}{-\sin x}=-\cot x$

5 0

2 years ago