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Delvig [45]
2 years ago
10

Can someone please help me​

Mathematics
2 answers:
kifflom [539]2 years ago
8 0

Answer:

91

Step-by-step explanation:

When you divide the denominator by the coefficient than muiltpy Toby the radius and circurfumence you can get your answer to y =Mx+b form or you can get it into standard form which could be easier.

amm18122 years ago
6 0

Answer:

the last one ----> -h+10 < -9.5

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Kate build a garden box with four sides if two sets of parallel sides. Which of the following shape could her garden not be
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Answer:

A Trapezoid

Step-by-step explanation:

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Help with what there is nothing there
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3 years ago
The amount of time t it takes for a group of volunteers to clean up a park varies inversely with the number of volunteers v. If
sweet-ann [11.9K]
T ∝ 1/v 

<span>so, t = k/v or tv = k </span>

<span>Then, with t = 2.5 and v = 5 we have: </span>

<span>2.5 = k/5 </span>

<span>so, k = 12.5 </span>

<span>Therefore, t = 12.5/v or vt = 12.5  HOPE IT HELPED</span>
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3 years ago
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(Will give Brainliest/5 Stars if correct answer)
tensa zangetsu [6.8K]
Answer: Choice D) 
The angle between the two vectors is approximately 71.6 degrees

----------------------------------------------
----------------------------------------------

Work Shown: 

Each time I write the word "dot" I mean "dot product". 

|u| = length of vector u
|u| = sqrt(u dot u)
|u| = sqrt(<8,4> dot <8,4>)
|u| = sqrt(8*8 + 4*4)
|u| = sqrt(64 + 16)
|u| = sqrt(80)
|u| = sqrt(16*5)
|u| = sqrt(16)*sqrt(5)
|u| = 4*sqrt(5)

-----------------------

|v| = length of vector v
|v| = sqrt(v dot v)
|v| = sqrt(<9,-9> dot <9,-9>)
|v| = sqrt(9*9 + (-9)*(-9))
|v| = sqrt(81+81)
|v| = sqrt(2*81)
|v| = sqrt(2)*sqrt(81)
|v| = sqrt(2)*9
|v| = 9*sqrt(2)

-----------------------

u dot v = <8,4> dot <9,-9>
u dot v = 8*9 + 4*(-9)
u dot v = 72-36
u dot v = 36

-----------------------

cos(theta) = (u dot v)/(|u|*|v|)
cos(theta) = (36)/(4*sqrt(5)*9*sqrt(2))
cos(theta) = (36)/(36*sqrt(10))
cos(theta) = 1/(sqrt(10))
cos(theta) = sqrt(10)/10
theta = arccos(sqrt(10)/10)
theta = 71.56505
which rounds to 71.6 when rounding to one decimal place (nearest tenth)

That's why the approximate answer is roughly 71.6 degrees

7 0
3 years ago
You toss a coin three times. What is the probability of getting three heads?
RSB [31]

Answer:1/6

Step-by-step explanation: So you toss it 3 times(1/3) and you have 50% chance(1/2) of choosing heads or tails... so,

1/3 x 1/2 = 1/6

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2 years ago
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