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3 years ago

10

Two vectors of lengths 4 and 6 have a dot product equal to 24. Which is true about the vectors?

2 answers:

GarryVolchara [31]3 years ago

7 0

Answer:

1

Step-by-step explanation:

the dot product or scalar product is an algebraic operation that takes two equal-length sequences of numbers (usually coordinate vectors), and returns a single number. In Euclidean geometry , the dot product of the Cartesian coordinates of two vectors is widely used.

Ipatiy [6.2K]3 years ago

3 0

Answer:

C

Step-by-step explanation:

Edge 2021

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The formula for the size of a file that was downloaded over time t and at an average rate r is r.t.

lakkis [162]

Answer:

The size of file downloaded is <em>88 megabytes.</em>

Step-by-step explanation:

Given that:

Average rate of downloading the file = $r$

Time taken to download = $t$

Formula for the size of file downloaded = $r.t$

Rate of downloading, $r = 800\ kilobytes/sec$

Time taken, $t$ = 110 seconds

To find:

Size of file downloaded in megabytes = ?

Solution:

First of all, let us apply the given formula to find the size of file downloaded:

Size of file downloaded = $r.t$

Size of file downloaded = 800 kilobytes seconds $\times$ 110 seconds =

<em>88000 kilobytes</em>.

Now, let us convert the unit kilobytes to megabytes to find the answer.

<em>Conversion formula:</em>

1000 kilobytes = 1 megabyte

Let us use unitary method to find the number of megabytes in 88000 kilobytes.

1 kilobytes = $\frac{1}{1000}$ megabytes

88000 kilobytes = $\frac{1}{1000} \times$ 88000 megabytes

$\Rightarrow$ <em>88 megabytes.</em>

Therefore, the size of file downloaded is <em>88 megabytes.</em>

5 0

3 years ago

How many meters is 1/2 decameter

trapecia [35]

Answer: 5 meters

Step-by-step explanation: 1/2 = .5, if you move the decimal in front of the 5, you would go from .5 to 5

3 0

3 years ago

Simplify 5x(3x^2+2x-3)

Tcecarenko [31]

Answer:

$15x^3 +10x^2 - 15x$

Step-by-step explanation:

Hello!

Use the distributive property and multiply like terms.

<h3>Simplify</h3>

$5x(3x^2 + 3x - 3)$
$5x(3x^2) + 5x(2x) + 5x(-3)$
$15x^3 +10x^2 - 15x$

The simplified form is $15x^3 +10x^2 - 15x$ .

4 0

2 years ago

Read 2 more answers

jack wants to paint his walls. two walls are 12 ft by 8 ft and two walls are 10 ft by 8 ft. what is the area to be painted? if o

Ksivusya [100]

Answer:

352 ft (squared) , he will need 12 paint cans

Step-by-step explanation:

Two 12 by 8ft walls = 192 ft in area, Two 10 by 8ft walls = 160 ft in Area, that equals 352 ft total, 352/30=11.73 repeated, round up to 12

4 0

3 years ago

ANSWER ASAP<br> THANKS<br> ...............

mylen [45]

Answer:

250

Step-by-step explanation:

5*5=25

25*10=250

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6 0

3 years ago