arline1
arline1
07-06-2016
Physics
contestada
what is the dot product of a= -2i - 5j and b=i -4j
Respuesta :
padawan
padawan
07-06-2016
i.i = j.j = 1
i.j = j.i = 0
(-2i - 5j)(i -4j)
= (-2i).i + (-2i).(-4j) + (-5j).i + (-5j).(-4j)
= -2 + 0 + 0 + 20 = 18
Answer Link
Nabillassm
Nabillassm
20-10-2021
Answer:
18
Explanation:
Answer Link
VER TODAS LAS RESPUESTAS ( 13+ )
Otras preguntas
We always see the same side of the Moon because Choose one:A. the Moon does not rotate on its axis.B. the Moon rotates once each revolution.C. when the other si
A honeybee can carry 40 mg of nectar. How many grams can a honeybee carry? Help!
Nazis who forced Jews to live in ghettos also forced them to
Which expression has a value that is equivalent to 5n + 13 when n=−5 ? 1.2n + 2 2. 4n + 8 3. n² + 13 4.n + 8
Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = 2 sin θ + 4 cos θ. The circle is graphed in the acco
The circumference (C) C of a swimming pool is 56 56 feet. Which formula can you use to find the diameter (d) d if you know that C=πd C = π d ?
What is the volume of the pyramid 8ft 4ft 6ft 20 POINTS
Factor for the following expression. 49y6-42y3+9
Is the smoot-hawley plan better or worse than " buy american? buy spanish or british jobs for british workers?
Can someone please help me with question 4
