3 years ago

What is 7*7-1??????????

Mathematics

1 answer:

Margarita [4]3 years ago

8 0

Answer:

Step-by-step explanation:

7*7= 49-1=48

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If you want to convert yards to feet what operation would you use

lyudmila [28]

Just multiply the value of Yards by 3, you'll get the answer in feet
As 1 yard = 3 foot

Hope this helps!

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3 years ago

The circumference of a circle is<br> 9m<br> What is the area of the circle?

vazorg [7]

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2 years ago

Colossus Added to six flags st. Louis in 1986, the Colossus is a giant Ferris wheel. Its diameter is 165 feet, it rotates at a r

NemiM [27]

Given:

D=165 feet and the frequency of the motion is 1.6 revolutions per minute.

Solution:

The radius is half of the diameter.

The radius of the wheel is 82.5 feet.

$T=\frac{1}{1.6} \text{ minutes}$

As we know: $\omega=\frac{2\pi}{T}$

Substitute the value of T in the above formula.

$\omega=\frac{2\pi}{\frac{1}{1.6}}\\\omega=3.2\pi$

If the center of the wheel is at the origin then for $t=0$ the rest position is $-a$ .

This can be written as:

$h(t)=-a\cos(\omega t)\\h(t)=-82.5cos(32.\pi t)$

The actual height of the rider from the ground is:

$h(t)=\text{ Initial height from bottom}+\text{ radius}-82.5\cos(3.2\pi t)\\h(t)=15+82.5-82.5\cos(3.2\pi t)\\h(t)=97.5-82.5\cos(3.2\pi t)$

The required equation is $h(t)=97.5-82.5\cos(3.2\pi t)$ .

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3 years ago

Which answer correctly estimates the quotient of 8.39 ÷ 1.22??

Flauer [41]

The answer is 6.87704918
6.9 rounding to the tenth
6.88rounding to the hundredth
6.877rounding to the thousandth <span />

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3 years ago

Write a equation in slope intersect form for points (0,8) and (9,5)

lyudmila [28]

y = mx+b

(5-8)/(9-0) = -1/3 which is m

solve point slope to find slope intercept by using one of the points (0,8)

y-y1=m(x-x1)

y-8 = -1/3(x-0)

y-8 = -1/3x

Answer: y = -1/3x + 8

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3 years ago