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4 years ago

What is "the square root of a number "

Mathematics

2 answers:

tiny-mole [99]4 years ago

8 0

Something times itself equals the square root
ex. 3x3=9 9x9=81

Reika [66]4 years ago

3 0

The square root of a number is the reversing of a squared number.
For example, 4 x 4 (or 4 squared) = 16.
The square root of 16 is 4.
I hope this helps!

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A Ferris wheel 50ft in diameter makes one revolution every 40sec. If the center of the wheel is 30ft above the ground, how long

aleksklad [387]

Answer:

The rider is 15.91 seconds 50 ft above the ground after reaching the low point

Step-by-step explanation:

We can evaluate the angle α

using trigonometry applied to the orange small triangle with height 50-30 = 20 ft and hypotenuse equal to the radius r = 25ft

Now

$20 = \frac{25}{sin(\alpha)}$

$\alpha = arcsin{\frac{20}{25}$

$\alpha = 53.13^{\circ}$

So 50 ft of height corresponds to the total angle:

$90^{\circ} =53.13^{\circ} = 143.13 6^{\circ}$ = 2.498 radians

Now the angular velocity

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

$\omega = \frac{2 \pi}{40}$

$\omega =0.157rad/s$

To describe 2.498 rad it will take:

$t = \frac{2.498}{0.157}$

t = 15.91 s

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4 years ago

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Some plzzzzz help i'm struggling 20 points for desent answer plzzzzz ty!

Sergeu [11.5K]

Answer: the tax is $2.16 so total would be $74.16 if the original ticket price was $72.00

Step-by-step explanation:

T + 0.03

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72 + 2.16 = 74.16

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3 years ago

A test contains two multiple-choice questions. If a student makes a random guess to answer each question. (Hint: Consider two ou

Maslowich

Answer: 2

Step-by-step explanation: he could ethier get t right or get it wrong

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3 years ago

Darcy wants to buy a new skirt. The price of the skirt is $35.00 and 7% sales tax will be added to the price. Darcy has $40.00 t

Novay_Z [31]

The value of the skirt with a tax is
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3 years ago