[30 POINTS] An automobile steering wheel is shown. The ideal mechanical advantage of this wheel and axle = ____

Find a closed-form formula that reproduces the sequence 1,-1, 1, -1, 1, -1, 1, ... (zero-based indexing). Check all that are cor

Svetlanka [38]

Recall that

$\cos(0) = \cos(2\pi) = \cos(4\pi) = \cos(2n\pi) = 1$

and

$\cos(\pi) = \cos(3\pi) = \cos(5\pi) = \cos((2n+1)\pi) = -1$

Then the given sequence could be written as

$a_n = \cos(n\pi) = (-1)^n$

7 0

2 years ago

-10=-4+2x how do we solve this?

Dafna1 [17]

$-10=-4+2x\\
2x=-6\\
x=-3$

4 0

4 years ago

Read 2 more answers

What is the equation of a line that is perpendicular to y = 3 x − 2 and passes through the point ( 6 , 8 ) Was

Flauer [41]

Hello!

To find the line that is perpendicular to y = 3x - 2 and passes through the ordered pair (6, 8), we will:

Find the negative reciprocal using the slope of the given function
Substitute the given ordered pair into the new equation with the slope found in step 1

Let's remind ourselves of slope-intercept formula. Slope-intercept formula is y = mx + b, where m is the slope, and b is the y-intercept.

In the given equation, we know that 3 is slope. With that, we can find the negative reciprocal of that slope, and continue to step #2.

To find the reciprocal, we will need to flip our fraction. In this case, 3/1 = 3, so once we flip it, it is 1/3. Since it is the negative reciprocal, the fraction is a negative, so the negative reciprocal is -1/3.

Now, we will substitute the ordered pair into the slope-intercept formula with our new slope.

y = -1/3x + b (6, 8)

8 = -1/3(6) + b

8 = -2 + b (add 2 to both sides)

10 = b

Therefore, the equation of the line is y = -1/3x + 10.

8 0

3 years ago

=(x + 6) = 11<br> copied for free from openupresources.org

soldi70 [24.7K]

Answer:

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4 years ago

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lesya692 [45]

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3 years ago

[30 POINTS] An automobile steering wheel is shown. The ideal mechanical advantage of this wheel and axle = _____ .