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4 years ago

Find the specified vector or scalar. u = -4i + 1j and v = 4i + 1j; Find u + V

Mathematics

1 answer:

Anna [14]4 years ago

4 0

Hello,

$\vec{u}+\vec{v}=0\vec{i}+2\vec{v}$
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How are the mean and median affected when the value 5 is included in the data set belo

Kobotan [32]

Answer:

The mean increases and the median changes to 4.

Step-by-step explanation:

To find the mean. You need to add all of the numbers together then divide by how many numbers there are. The median is found by the middle number.

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2 years ago

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3 years ago

Find the common ratio of the geometric sequence 11, -55, 275,...11,−55,275,...

Kaylis [27]

Answer:

r = -5

Step-by-step explanation:

common ratio (r) is found be dividing one term by its preceding term:

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Therefore, r = -5

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3 years ago

A conical tent has a radius of 10.4 ft and a height of 8.4 ft. Doubling which dimensions will quadruple the volume of the tent?

avanturin [10]

Answer: Doubling the radius.

Step-by-step explanation:

The volume of a cone can be found with the following formula:

$V=\frac{1}{3}\pi r^2h$

Where "r" is the radius and "h" is the height of the cone.

Let's find the volume of the conical tent with a radius of 10.4 feet and a height of 8.4 feet.

Identifiying that:

$r=10.4\ ft\\\\h=8.4\ ft$

You get this volume:

$V_1=\frac{1}{3}\pi (10.4\ ft)^2(8.4\ ft)\\\\V_1=951.43\ ft^3$

If you double the radius, the volume of the conical tent will be:

$V_2=\frac{1}{3}\pi (2*10.4\ ft)^2(8.4\ ft)\\\\V_2=3,805.70\ ft^3$

When you divide both volumes, you get:

$\frac{3,805.70\ ft^3}{951.43\ ft^3}=4$

Therefore, doubling the radius will quadruple the volume of the tent.

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3 years ago

Which of the following is true about the measure of segment EF?

m_a_m_a [10]

There is no following

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3 years ago