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2 years ago

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erica [24]2 years ago

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Evaluate 7(-4) - |-6| + |4|

Zanzabum

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$= 7( - 4) - | - 6| + |4|$

$= - 28 - | - 6 | + |4|$

$= - 28 - 6 + |4|$

$= - 34 + |4|$

$= - 34 + 4$

$= - 30$

The absolute value of a real number a is a when a≥0, or -a when a<0. The absolute value of -6 is 6. The absolute value of 4 is 4.

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7 0

3 years ago

40 points and brainliest get it before it gets claimed.

denis23 [38]

Answer:

yuh

Step-by-step explanation:

4 0

3 years ago

Find the sine of ZI. J 21 D I Write your answer in simplified, rationalized form. Do not round.

Kitty [74]

What is ZI? Can you specify? thanks

7 0

3 years ago

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

Write 2.71 repeating as a simplified fraction.<br><br> 271/100 is wrong

Oksana_A [137]

Answer:

269/99

Step-by-step explanation:

4 0

3 years ago