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Mekhanik [1.2K]
3 years ago
11

Determine whether the statement is true or false. If it is true, explain why. If it is false, explain why or give an example tha

t disaproves the statement.
The dot product of parallel vectors is zero,
Mathematics
1 answer:
frosja888 [35]3 years ago
5 0

Answer:

False

Step-by-step explanation:

the <u>dot product</u> between two vectors A and B is:

A·B=ABcos\theta

where \theta is the angle between the vectors, if they are parallel, this angle is zero. so  \theta=0

and so the dot product is:

A·B =ABcos(0)

and since  cos (0)=1

the dot product is equal to

A·B=AB

The dot product of parallel vectors is NOT zero

You might be interested in
What is the solution(s) to the equation 5a2 - 44 = 81?
taurus [48]

Answer:

B

Step-by-step explanation:

5a^2 - 44 = 81                     Add 44 to both sides

5a^2 = 81 + 44                    Collect like terms

5a^2 = 125                          Divide both sides by 5

a^2 = 125/5                  

a^2 = 25                              Take the square root of both sides

√a^2 = √25

a = +5

a = -5

The answer is B

7 0
3 years ago
What is 10*10? Please help! :) ​
Zigmanuir [339]

Answer:

100

Step-by-step explanation:

It will help in the future to memorize your time tables

10*10 is basically 10 plus 10, 10 times but in a easier form

10+10+10+10+10+10+10+10+10+10=100

10+10=20

20+10=30

30+10=40

40+10=50

50+10=60

60+10=70

70+10=80

80+10=90

90+10=100

5 0
3 years ago
what power can you write to represent the volume of the cube shown? write the power as an expression with a base and an exponent
sergiy2304 [10]

Answer:

The power for the volume of the cube is '3'.

Exponent form of the volume is (\frac{1}{3})^3

Volume of the cube is \frac{1}{27} inch³.

Step-by-step explanation:

We are given,

A cube with side equal to \frac{1}{3} inches.

As we know,

Volume of a cube = side^{3}

Thus, we get,

Volume of the given cube is,

Volume = (\frac{1}{3})^3

i.e. Volume = \frac{1}{27} inch³

Thus, we have,

The power for the volume of the cube is '3'.

Exponent form of the volume is (\frac{1}{3})^3

Volume of the cube is \frac{1}{27} inch³.

4 0
3 years ago
Read 2 more answers
I am confused on this is it 1/8
Oxana [17]
Yes it is 1/8.You don’t multiply the top part of the fraction,just the bottom.
6 0
3 years ago
Instructions: Find the missing side. Round your answer to the nearest
ch4aika [34]

Answer:

Step-by-step explanation:

Tan(51) = opposite / adjacent

The adjacent side makes up the reference angle (51o)

The opposite side is not part of the reference angle

adjacent side = x

opposite side = 16

Tan(51) = 16 / x              Multiply both sides by x

x * Tan(51) = 16            Divide by tan 51

x = 16 / tan(51)

tan(51) = 1.2349

x = 16 / 1.2349

x = 12.96

7 0
2 years ago
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