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iogann1982 [59]
4 years ago
12

The construction cost for this road ha been estimated at $135 per linear foot. (1 mile = 5280 ft).

Mathematics
1 answer:
Mamont248 [21]4 years ago
8 0
T. Pitagora twice => new street = 2\sqrt{20} = 8.94 miles;
135*8.94 = 1206.9$;
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How many fifths are the in 60/100
tankabanditka [31]
In order to calculate that, we need to divide it by 1/5 as follows:
60/100 / 1/5

We can re-write it as: 60/100 * 5 = 6/10 * 5 = 30/10 = 3

So, there are "3" 1/5ths in 60/100

Hope this helps!
8 0
3 years ago
Find the slope of the given points (2,5) and (8,-3) and write the equation​
max2010maxim [7]

Answer:

Slope = \frac{-4}{3}

4x + 3y = 23

Step-by-step explanation:

slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{-3-5}{8-2} =\frac{-8}{6} =\frac{-4}{3}

The equation:

\frac{y-y_{1} }{x-x_{1} }=m   m is the slope

y-y_{1}=m(x-x_{1} )

y - 5 = -4/3 (x - 2) Multiply both sides by 3

3y -15 = -4 (x - 2)  

3y - 15 = -4x + 8

3y + 4x = 8 + 15

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7 0
4 years ago
Determine the amplitude or period as requested. Period of y = - 1/3 * sin 2x
Sedbober [7]

Answer:

Period = \pi

Step-by-step explanation:

Given

y = -\frac{1}{3} * \sin(2x)

Required

The period

A sine function is represented as:

y =A \sin(Bx + C) + D

Where

Period = \frac{2\pi}{B}

By comparing:

y =A \sin(Bx + C) + D and y = -\frac{1}{3} * \sin(2x)

B = 2

So, we have:

Period = \frac{2\pi}{2}

Period = \pi

Hence, the period of the function is \pi

3 0
3 years ago
Sylvia invested 500 in an account compounded annually with an interest rate of 8%. Manuel invested 600 in an account with a comp
il63 [147K]

Answer:

Sylvia's investment would double first

Step-by-step explanation:

The number of years it takes for amount invested to double itself using the 72 rule is 72 divided by rate of interest as computed below:

Sylvia investment:

Sylvia's investment would double in 9 years' time  (72/8)

Manuel's investment"

Manuel investment of $600 would double itself in 9.9 years' time (72/7.25)

From the above analysis,Sylvia's investment of $500 at the 8% rate of interest would double first

8 0
3 years ago
Square root of 164,025
Darina [25.2K]

Answer:

405

Step-by-step explanation:

7 0
3 years ago
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