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JulsSmile [24]
2 years ago
8

1. Calculate the variance of the set of data to two decimal places.

Mathematics
1 answer:
kkurt [141]2 years ago
7 0
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Can anyone help me with this please
tigry1 [53]
It’s b here is proof of what i got
4 0
2 years ago
Is it possible to find another line that’s parallel to 3x+9y=1 and passes through (0, 1/9)
LuckyWell [14K]

Answer:

no it is not

Step-by-step explanation:

3x+9y=1 simplified is

9y=-3x+1

y=-1/3x+1/9

this is the exact same equation as 3x+9y=1, so you cannot find another line thats parallel to it and passes through that same point (it'll always be that point)

6 0
2 years ago
Does anyone know the answer to this? Algebra 2
natulia [17]

Answer:

Step-by-step explanation:

Sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

If, sinθ = -\frac{1}{2} and π < θ < \frac{3\pi }{2}

Since, sinθ is negative, angle θ will be in IIIrd quadrant.

And the measure of angle θ will be (180° + 30°)

θ = 210°

It's necessary to remember that tangent and cotangent of angle θ in quadrant III are positive.

Therefore, cos(210°) = -\frac{\sqrt{3} }{2}

tan(210°) = \frac{1}{\sqrt{3} }

csc(210°) = -\frac{1}{2}

sec(210°) = -\frac{2}{\sqrt{3} }

cot(210°) = √3

3 0
3 years ago
On a joint school visit, lan travels on his motor bike at an average speed of 24 km per
juin [17]

Answer:

A) Ian will arrive first.

B) 6 Kilometers

C) 15 Minutes

Step-by-step explanation:

6 0
2 years ago
The product of three and a squared number is twice the sum of the number and four
Mamont248 [21]
From the text of the task we can write the equation:


3 x^{2} =2(x+4)\\&#10;\\&#10;3x^2=2x+8\\&#10;\\&#10;3x^2-2x-8=0\\&#10;\\&#10;\Delta=(-2)^2-4.3.(-8)=4+96=100\\&#10;\\&#10;x=\frac{2 \pm\sqrt{100}}{2.3}=\frac{2 \pm10}{6}\\&#10;\\&#10;x_1=\frac{2-10}{6}=-\frac{8}{6}=-\frac{4}{3}\\&#10;\\&#10;x_2=\frac{2+10}{2.3}=\frac{12}{6}=2
7 0
3 years ago
Read 2 more answers
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