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2 years ago

13

Lin runs 4 laps around a track in 6 minutes.

1 answer:

STALIN [3.7K]2 years ago

3 0

Answer:

B

Step-by-step explanation:

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I need help with this

Maksim231197 [3]

Answer: 4.75

Step-by-step explanation:

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2 years ago

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A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for

slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 % = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

$x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})$

$x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})$

$x = 19 \pm 2.692 \times 0.5963$

$x = 19 \pm 1.6052$

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0

2 years ago

The point P(5, −1) is rotated 90 degrees clockwise around the origin.

azamat

Answer:

C

Step-by-step explanation:

:)

3 0

2 years ago

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Explain how opposites are applied when solving one-step equations. How do you know what to use to solve a one-step equation? Be

weeeeeb [17]

Input: 4y-16+8y=-4 answer: 12y-16=-4 HERE IS YOUR ANSWER

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2 years ago

Josiah and his children went into a grocery store and he bought $15 worth of peaches and mangos. Each peach costs $0.50 and each

Westkost [7]

<em><u>Step</u></em><em><u>•</u></em><em><u>BY</u></em><em><u>•</u></em><em><u>Step</u></em><em><u> </u></em><em><u>Explanation</u></em><em><u>~</u></em><em><u>|</u></em>

<em><u> </u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u>♡</u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em>

y=1.50

x=0.50

¹

1.50

1.59

______+

3.00

0.50

_____+

<em>3.50</em>

<h2><em><u>Answer</u></em><em><u>:</u></em><em><u>♡</u></em><em><u>~</u></em></h2>

<em><u>3.50</u></em>

<em><u>HOPE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>HELPSS</u></em>

8 0

2 years ago