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3 years ago

How does multiplying a vector by a scalar value of -pi change the vector?

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

6 0

I believe the answer to your question is A

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Which equations are true?

saveliy_v [14]

B is true because 0-(-x) = 0 + x = x

5 0

3 years ago

Find the equation of the line that is perpendicular to y = – 1 4 x – 8 and passes though the point (2, –4).

vivado [14]

The equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

Explanation:

The equation of the line is perpendicular to $y=-14 x-8$

The equation is of the form $y=mx+b$ where m=-14

<u>Slope:</u>

The slope of the perpendicular line can be determined using the formula,

$m_1 \cdot m_2=-1$

$-14 \cdot m_2=-1$

$m_2=\frac{1}{14}$

Thus, the slope of the line is $m=\frac{1}{14}$

<u>Equation of the line:</u>

The equation of the line can be determined using the formula,

$y-y_1=m(x-x_1)$

Substituting the slope $m=\frac{1}{14}$ and the point (2,-4), we get,

$y+4=\frac{1}{14}(x-2)$

Simplifying, we get,

$y+4=\frac{1}{14}x-\frac{1}{7}$

$y=\frac{1}{14}x-\frac{1}{7}-4$

$y=\frac{1}{4}x-\frac{29}{7}$

Thus, the equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

3 0

3 years ago

A basketball is shaped like a sphere as shown in the diagram. The basketball has a radius of 4.7 inches.

netineya [11]

Answer:

V≈434.89

Step-by-step explanation:

V=4/3πr^3

plug the numbers in and you get 434.89

8 0

2 years ago

Find the rate of change

Schach [20]

Answer:

The rate of change represented in the table is 14

Step-by-step explanation:

rise over run or y2-y1/x2-x1 to find the rate of change

pick two points

lets use (0,-11) and (2, 17)

17 - (-11) / 2 - 0

= 28 / 2

= 14

5 0

3 years ago

If a number has nine in the ones place it is always even. Is that reasonable or not?

Nady [450]

No it is not reasonable, since 9 isn't an even number, and what determines if it is an even number, is the value in the ones place.

4 0

3 years ago

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