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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%)

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Answer:

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Step-by-step explanation:

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5 0
3 years ago
Are the following ratios equivalent? Why or why not? 4:5 and 16:20
MrRissso [65]

Answer:

Equivalent

Step-by-step explanation:

4:5      multiply both sides by 4  to get    16:20    

4 0
2 years ago
A car has a mass of 1 500 kg and acceleration of 2.0 m/s2 what is the nat force acting on the car
Dennis_Churaev [7]

Answer:

The net force acting on the car is  3× 10^3  Newtons.

Step-by-step explanation:

Force is defined as the product of the mass of the body and its acceleration,⇒ F = m a

Substituting the above given values we get,  F = ( 1500 k g ) ( 2.0 m / s 2 ) = 3000 N = 3 × 10^ 3 N .

4 0
3 years ago
Prove the identity <br> 1. cot²x= csc²x-1<br><br> 2. sin x tan x= sec x - cos x
yulyashka [42]

Answer:

Step-by-step explanation:

Hope this helps u!!

4 0
3 years ago
In the figure is a right triangle ABC with AC=10cm and BC=6cm. Determine: 1.5.1 The height AB (hint: Theorem of Pythagoras)
Alexxandr [17]

Answer:

height AB is 8 cm

Step-by-step explanation:

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= √(10)^2- (6)^2

= √100-36

= √64

= 8

3 0
3 years ago
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