3 years ago

WILL GIVE BRAINLIST AS SOON AS I CAN I've also never seen this question before either?? Very confused.

Mathematics

1 answer:

shepuryov [24]3 years ago

6 0

Answer:

0.360 % or 40%

Step-by-step explanation:

Area circle = 50.27 (50)

Area square = 32.3 (32)

Area circle minus area square = 50.27-32.3= 17.97 (18)

18/50 = 9/25 = 0.36

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g A test was conducted to determine if there is a difference between Canadian and American average heart rates. A group of 36 Ca

melisa1 [442]

Answer:

The test statistic | t | =4.45

Step-by-step explanation:

Step(i):-

Given that the first sample size n₁ = 36

Given that the second sample size n₂ = 34

Mean of the first sample x₁⁻ = 68.5

Mean of the second sample x₂⁻ = 70

Step(ii):-

Test statistic

$t = \frac{x^{-} _{1}-x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } } )}$

$t = \frac{68.5-70}{\sqrt{2(\frac{1}{36}+\frac{1}{34} ) } }$

$t = \frac{-1.5}{0.337} = -4.45$

The test statistic | t | = |-4.45| =4.45

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2 years ago

Polynomial Simplify The expression to a in standard form (x+3) (2x²+9 x-2)

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Answer:

2x3+15x2+25x−6

Step-by-step explanation:

Multiply each term in the first expression by each term in the second expression and combine like terms.

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3 years ago

Given P(8,-12) and T(x-5,y+3), state P" after a reflection over the line y=x of the PointT(P)? PLSSS HELP!

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2 years ago

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RUDIKE [14]

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Step-by-step explanation:

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2 years ago

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5-(x/3)when x=12 What’s the answer

notka56 [123]

Answer:

When x is 12, $5-(\frac{x}{3})=1$

Step-by-step explanation:

$5-(\frac{x}{3} )$

Insert the given value of x:

$5-(\frac{12}{3} )$

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$5-4$

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$1$

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3 years ago

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