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3 years ago

What does square mile mean

2 answers:

6 0

The square mile (abbreviated as sq mi and sometimes as mi2) is an imperial and US unit of measure for an area equal to the area of a squareof one statute mile. It should not be confused with miles square, which refers to the number of miles on each side squared.

klasskru [66]3 years ago

6 0

A square mile is a mile side to side and a mile up and down

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Evgesh-ka [11]

Answer:

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3 years ago

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83. 6 in a complex number

grin007 [14]

Answer:

83.6 is a real number

Step-by-step explanation:

Since 83.6 83.6 is a real number, it is the real part (a) of the complex number a+bi a + b i . A real number does not contain any imaginary parts, so the value of b b is 0 0 . The answer is 83.6+0i 83.6 + 0 i

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4 years ago

Phil is riding his bike. He rides 46 miles in 4 hours, 57.5 miles in 5 hours, and 69 miles in 6 hours. Find the constant of prop

FromTheMoon [43]

Answer:

The constant of proportionality k = 11.5.

The equation will be: $\mathbf{y=11.5(x)}$

Step-by-step explanation:

If x represents number of hours than y represents miles

We are given:

x y

4 46

5 57.5

6 69

The constant of proportionality can be found using formula: $k=\frac{y}{x}$

Putting values and finding k

x y k ( $k=\frac{y}{x}$ )

4 46 11.5

5 57.5 11.5

6 69 11.5

So, the constant of proportionality k = 11.5

Now, The equation will be:

$k=\frac{y}{x}\\or \\y=kx\\Put \ k=11.5\\y=11.5(x)$

So, the equation will be: $\mathbf{y=11.5(x)}$

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3 years ago

What is the derivative of f(x)= 3cos^2 (x)

Igoryamba

$\large\begin{array}{l} \textsf{Finding the derivative of}\\\\ \mathsf{f(x)=3\,cos^2\,x} \end{array}$

$\large\begin{array}{l} \textsf{You can differentiate it using the chain rule}\\\\ \mathsf{f'(x)=(3\,cos^2\,x)'}\\\\ \mathsf{f'(x)=3\,(cos^2\,x)'}\\\\ \mathsf{f'(x)=3\cdot 2\,(cos\,x)^{2-1}\cdot (cos\,x)'}\\\\ \mathsf{f'(x)=6\,(cos\,x)^1\cdot (-sin\,x)}\\\\ \boxed{\begin{array}{c}\mathsf{f'(x)=-6\,cos\,x\,sin\,x} \end{array}}\qquad\checkmark \end{array}$

If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2141400

$\large\textsf{I hope it helps.}$

Tags: derivative trig function cosine cos power chain rule differential calculus

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3 years ago

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kakasveta [241]

D is the correct answer

v = y

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3 years ago

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