3 years ago

El gokú mui esta op loleso que ni lo tengo rainbow ni nada

Mathematics

1 answer:

Tomtit [17]3 years ago

3 0

Answer:

um ok

Step-by-step explanation:

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The curves r1(t) = 4t, t2, t3 and r2(t) = sin(t), sin(5t), 2t intersect at the origin. find their angle of intersection, θ, corr

san4es73 [151]

First get the tangent vectors by differentiating r1 and r2
$r_1 '(t) = (4,2t,3t^2) \\ \\ r_2'(t) = (cos (t), 5 cos(5t), 2)$
Evaluate at t=0
$r_1' = (4,0,0) \\ \\ r_2' = (1,5,2)$

Use identity for angle between 2 vectors:
$u*v = |u| |v| cos \theta$

Evaluate dot product and unit vectors:
$u*v = (4,0,0)*(1,5,2) = 4 \\ \\ |u| = \sqrt{4^2 +0^2+0^2} = 4 \\ \\ |v| = \sqrt{1^2 + 5^2+2^2} = \sqrt{30}$

Sub into identity and solve for theta:
$4 = 4 \sqrt{30} cos \theta \\ \\ cos\theta = \frac{1}{\sqrt{30}} \\ \\ \theta = 79.48$

Answer:
Angle of intersection is about 79 degrees.

5 0

4 years ago

I need help and how you got that answer

anastassius [24]

1. Calculate the rectangular prism

4*7 = 28

2. Calculate the triangle

(10-4)*7*0.5

42*0.5 = 21

3. Add them up

21 + 28 = 49

Answer: 49

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2 years ago

A man is cleaning the roof of his house. He figures that his 15ft ladder will be stable if it leans on the house at a 55 angle h

Romashka-Z-Leto [24]

Answer:

the answer i think is 3.6

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3 years ago

A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 11 inches, a width of 3 inches, and a

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Area = 1/2((11+3)×4.5) = 31.5 inch squared

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3 years ago

32 + 4 (2 + 4) X 6 = 8 + 4 =

Svetradugi [14.3K]

Answer:

176=12

Step-by-step explanation:

8 0

3 years ago

El gokú mui esta op loleso que ni lo tengo rainbow ni nada​

El gokú mui esta op loleso que ni lo tengo rainbow ni nada