3 years ago

Find the angle θ between the vectors. u = cos π 4 i + sin π 4 j v = cos π 2 i + sin π 2 j

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

5 0

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A rancher has a roll of fencing to enclose a rectangular area. The table shows how the area that the rancher can enclose with th

Free_Kalibri [48]

Checking for each option

Option A: $A(w) = -w^2+200w$

Substitute w = 10 and check if we'd get 900 as the answer
$A(10) = -(10)^2+200(10) = -100+2000 = 1900$

Option B: $A(w) = -w^2+100w$
Substitute w = 10 and check if we'd get 900 as the answer
$A(10)=-(10)^2+100(10)=-100+1000=900$

Option C: $A(w)=w^2+40w$
Substitute w = 10 and check if we'd get 900 as the answer
$A(10) = 10^2+40(10)=100+400=500$

Option D: $A(w) = w^2+90w$
Substitue w = 10 and check if we'd get 900 as the answer
$A(10)=10^2+90(10) = 100+900=1000$

Answer: Option B

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3 years ago

Read 2 more answers

Please help due soon please and thank you

Sunny_sXe [5.5K]

The answer is A, 75 degrees
add all like terms
2x+196
all triangles equal 180 degrees
2x+196=180
subtract the 196 from 180
2x= -16
divide
x= -8
plug into angle A
-8+83
A=75

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2 years ago

Can someone help me please and thank you very much

GaryK [48]

Answer:

7-(-3)= 10

7-3=4

59-(-1)= 60

-17-(6)= -11

Step-by-step explanation:

Hope this helps! :3

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3 years ago

Using the pattern in the table, what is the elevation of the submarine after 3 hours? After 45 minutes? After 0 minutes

Morgarella [4.7K]

Negative 2700, 315, and 0

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3 years ago

Factor the expression using the GCF.<br> 22 + 11 =

Maurinko [17]

Answer should be 22= 11x2 11= 11x1, something like that :)

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3 years ago