Help plzzz! I need help with this question. Thx!

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

4 0

Well to find the Mean you Add all of the numbers up and Divide by How many numbers there are

krek1111 [17]3 years ago

3 0

Answer:

Well to find the Mean you Add all of the numbers up and Divide by How many numbers there are

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6. If you can run 1 mile in 8 minutes, how long will it take to run 4 miles (assuming you can maintain

Flauer [41]

Answer:

32 minutes

Step-by-step explanation:

all you have to do is know that the unit rate is 4 so multiply 8 and 4 to get 32

8 0

2 years ago

Read 2 more answers

I need help ASAP please

natta225 [31]

The line thru (-3,0) and (-6,5) has this slope:

5-0 5
m = ----------- = ------- = - 5/3
-6-(-3) -3

The y-intercept of the desired line is simply (0,0), and so b = 0 and the equation of this line is

y = (-5/3)x

8 0

3 years ago

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

Water boils at 100LaTeX: ^\circ∘ Celsius or 212LaTeX: ^\circ∘ Fahrenheit. Water freezes at 0LaTeX: ^\circ∘ Celsius or 32LaTeX: ^

Lubov Fominskaja [6]

Answer:

$F = 1.8C +32$