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3 years ago

Ay bro anyone wanna help, thanks

Mathematics

1 answer:

chubhunter [2.5K]3 years ago

8 0

We use the pythagorean theorem and information about the rectangular prism to find the length of the hypotenuses that the spider walks along. Adding them together (5.39+5+5.83+3.91) gives us 20.13cm, the answer.

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Clock #2: A clock has a radius of 6 inches. The center is 14.5 inches below the ceiling. Record the distance as you did for Cloc

Whitepunk [10]

Answer:

The question is incomplete, I assume that we want to write an equation that defines the position (or distance) between the tip of the second hand of the clock and the ceiling.

We know that:

The center of the clock is 14.5 in below the ceiling.

The radius of the clock is 6 inches.

So, a general cosine equation is written as:

f(x) = A*sin(w*t) + M

where:

A = amplitude, in this case, is equal to the radius of the clock

w = angular frequency

t = time in seconds

M = midline (the oscillation is around this point), in this case, would be the distance between the center of the clock and the ceiling, because the clock is 14.5 inches below the ceiling, we can write this as M = -14.5 in

Replacing these two in the equation we have:

f(t) = 6in*cos(w*t) - 14,5in

Now, we know that at t = 0s the tip of the second hand of the clock is in its most high point, so at t = 0 we have the maximum, this is why we used a cosine function, because the maximum of the cosine function is at:

cos(0) = 1

We also know that the minimum will be at t = 30 seconds (when the tip of the second hand is in the bottom part of the clock)

then we need to have:

cos(w*30s) = -1

Remember that:

cos(pi) = -1

then:

w*30s = pi

solving for w, we get:

w = pi/30s

Then the equation for the distance between the tip of the second hand of the clock and the ceiling is:

f(t) = 6in*cos(t*pi/30s) - 14.5 in

4 0

3 years ago

I will make someone the BRAINLLYEST what is this and i will

diamong [38]

Answer:

42 (d)
105 (i)

4 0

3 years ago

Abby Kratz, a market specialist at the market research firm of Saez, Sikes, and Spitz, is analyzing household budget data collec

FrozenT [24]

Answer:

d) $128.65

Step-by-step explanation:

The table format from the question can be properly expressed as :

Coefficients Standard Error t Statistic p value

Intercept 39.14942 22.30182 1.755436 0.109712

x 1.792312 0.407507 4.398234 0.001339

Source df SS MS F $S_e$ = 29.51443

Regression 1 16850.99 16850.99 19.34446 $r^2$ = 0.682478

Residual 9 7839.915 871.1017

Total 10 24690.91

For a rural household with $90,000 annual income, Abby's model predicts weekly grocery expenditure of:_________.

The estimated regression equation is as follows:

Expenditure (y) = 39.15 + 1.79 x

For a rural household with $90,000 annual income; the independent variables will assume the following values

x = 50

Thus; the estimated groceries expenditure is computed from the above regression equation by replacing the values of the independent variables;

This can be expressed as:

y = 39.15 + 1.79 (50)

y = 39.15 + 89.5

y = $128.65

7 0

3 years ago

Consider in the figure below.

ELEN [110]

⚘ Refer to the attachments!!~

6 0

2 years ago

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What is the answer to number 3

Elis [28]

3x-2x-7

=x(plus symbol)7

6 0

3 years ago

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