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3 years ago

Ke=(1)/(2)mv^(2) solve for m

Mathematics

2 answers:

slava [35]3 years ago

8 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

$m=\frac{2Ke}{v\\^{2} }$

n200080 [17]3 years ago

3 0

Step-by-step explanation:

$\frac{ke}{ {v}^{2} } = \frac{1}{2} m$

$\frac{2ke}{ {v}^{2} } = m$

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Precal : Note: Triangle may not be drawn to scale. Suppose a = 3 and A = 15 degrees

drek231 [11]

Given:

In a right triangle at B,

$\begin{gathered} a=3 \\ A=15^{\circ} \end{gathered}$

To find:

The length of the sides b and c and angle B.

Explanation:

Using the trigonometric ratio,

$\begin{gathered} sinA=\frac{a}{c} \\ \sin15^{\circ}=\frac{3}{c} \\ c=\frac{3}{\sin15^{\circ}} \\ c=11.59 \\ c\approx11.6 \end{gathered}$

Using the trigonometric ratio,

$\begin{gathered} \tan A=\frac{a}{b} \\ \tan15^{\circ}=\frac{3}{b} \\ b=\frac{3}{\tan15^{\circ}} \\ b=11.19 \\ b\approx11.2 \end{gathered}$

Using the angle sum property,

The angle B becomes,

$\begin{gathered} 90+15+B=180 \\ B=180-90-15 \\ B=75^{\circ} \end{gathered}$

Final answer:

The values are,

$\begin{gathered} b=11.2 \\ c=11.6 \\ B=75^{\circ} \end{gathered}$

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1 year ago

Determine if the matrix is symmetric.

Amanda [17]

Answer:

because this is equal to the given matrix, the given matrix is symmetric.

Step-by-step explanation:

A symmetric matrix is a square matrix which has same number of rows and columns. Square matrix is equal to transpose. Equal matrices have equal dimensions. The given matrix is symmetric because the rows and columns are equally distributed.

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3 years ago

The slope of a linear function is 1/5. For every rise of 5 units, what is the run?

Jlenok [28]

Answer:

for every rise of 1 the run would be 25

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2 years ago

Which graph represents the function<br> f(x) = (x + 4)(x + 1)(x - 3)<br> ?

attashe74 [19]

Answer:

Step-by-step explanation:

The graph that represents the function

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crosses the x-axis three times: at x = -4, x = -1, and x = 3

because we apply the zero product rule and found the roots -4, -1, and 3

x+ 4= 0 → x = -4

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2 years ago

Without using a calculator, order the following numbers from least to greatest . 5 sqrt(14) 4

Flura [38]

Answer:

.5, sqrt 14, 4

Step-by-step explanation:

.5, 3.7416, 4

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2 years ago