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Naddika [18.5K]
3 years ago
8

1.Find the dot product of the two given vectors, u=(1,6) and v=(-5,-2) 2. Find the dot product of v=-7i+4j and w=-6i+5j

Mathematics
2 answers:
Svet_ta [14]3 years ago
8 0
The dot product of the two vectors will be given as follows:
v*w=(-7i+4j)*(-6i+5j)
=(-7*(-6))i+(4*5)j
=-42i+20j

Hence the answer is:
v*w=(-42i+20j)
Lerok [7]3 years ago
8 0

Answer:

Step-by-step explanation:

The answers to the Quick Check are:

1. A) -17

2. D) 62

3. D) sqrt 29

4. D) 150

Just finished the quick check the final score is 4/4 (100%)

You might be interested in
1.2 if a = -6, b = +4, c = -3 and d = -2 Calculate the value of :-
aalyn [17]

Answer:

a)ab=-6×+4=-24

b)a÷d=-6÷-2=3

c)2bd=2×+4×-2=-16

Step-by-step explanation:

Put the values according to the question

Hope it help you

7 0
3 years ago
How much is it but don’t stop it fast cash x
Crazy boy [7]

Answer:

yes

Step-by-step explanation:

4 0
2 years ago
Which property is demonstrated by the equation (5 + a) + 3 = (a + 5) + 3?
sineoko [7]

Answer:

Communitive Property

Step-by-step explanation:

Commutative property = 2 + 3 = 3 + 2 or 2(3) = 3(2)

Associative Property = (2 x 3) 5 = 2 (3 x 5) or (2 + 3) + 5 = 2 + (3 + 5)

Inverse Property = 2 + (-2) = 0 or (2/1)(½) = 1

Basic Definitions:

<u><em>Commutative Property</em></u> - Gives you the ability to switch the order of the numbers in an expression.

<u><em>Associative Property</em></u> - Let's you move the parenthesis in an expression but not the numbers.

<u><em>Inverse</em></u> - Uses numbers like 0 and 1.

Using these basic definitions and examples, we can summarize that the best answer would be <u>Communitive Property</u>

<u></u>

4 0
3 years ago
2d+4=10+2.5d<br><br> Help Me
sergiy2304 [10]
Subtract 2d from both sides

simplify 10 + 2.5d - 2d to 10 + 0.5d

subtract 10 from both sides

simplify 4 - 10 to -6

divide both sides by 0.5

simplify 6/0.5 to 12

switch the sides

Answer: d = -12.
6 0
3 years ago
What is 3 to the -2
melomori [17]

Answer:

1/9

Step-by-step explanation:

Anything to the negative power will be under 1

So take the square and then reciprocate it.

3 0
3 years ago
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