Answer:
x/2 inches
Step-by-step explanation:
Answer:
Step-by-step explanation:
AL is congruent to EK, and angle K is congruent to angle L. The only other congruency not marked but you know to be true is that, by the reflexive property, side AE is congruent to side AE. But that would give us a congruency statement SSA which is not actually a way to prove triangle congruency (you'll learn why if you take pre-calculus). So none of the choices work for what you're given.
Answer:
Step-by-step explanation:

The angle between the vectors t and u is 45°. And the vector t and vector w are orthogonal to each other.
<h3>What is a vector?</h3>
The quantity which has magnitude, direction and follows the law of vector addition is called a vector.
The vectors are given below.
t = −5i + 2j, u = −3i + 7j, and v = 8i + 20j
Part A: Then the angle between vectors t and u will be

Then we have
cos θ = [(−5i + 2j)(−3i + 7j)] / [√{(-5²) + 2²} + √{(-3)² + 7²}]
cos θ = 1 / √2
θ = 45°
Part B: c is a scalar
If
, then 
Let c = 2, then we have

Part C: Use the dot product to determine if t and w are parallel or orthogonal.

More about the vector link is given below.
brainly.com/question/13188123
#SPJ1
A) Linear velocity, v = ωr ω = Angular velocity, r = radius.
ω = 40 revolutions per minute. 1 minute = (1/60) hour.
= 40*2π radians / (1/60) hour = 4800π radians per hour π = 3.14
= 4800*3.14 = 15072 radians / hour
but radius, r = 30 inches, 63360 inches = 1 mile, 30 inches = (30/63360) mile
Linear velocity, v = ωr
v = 15072 radians / hour * (30/63360) mile
v ≈ 7.136 miles / hour
b) Linear velocity, v = ωr
v = 8.9 radians/second * 20 cm
v = 178 cm/s