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3 years ago

6

Jody, a statistics major, grows tomatoes in her spare time. She measures the diameters of each tomato. Assume the Normal model

is appropriate. One tomato was in the 50th percentile. What was its z-score?

1 answer:

d1i1m1o1n [39]3 years ago

3 0

The 50th percentile is the median so the z score will be 0

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The quotient of 15 and n is 5

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My English is not that great but if I got it right the answer is 3

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2 years ago

A $525 speaker now sells for 393.75 find the percent of change

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Step-by-step explanation:

$525 - $393.75 = $131.25

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2 years ago

Two linear equations are shown. A coordinate grid with 2 lines. The first line is labeled y equals StartFraction one-third EndFr

Lorico [155]

Answer:

$(7,\frac{13}{3})$

Step-by-step explanation:

we have

<em>The equation of the first line</em>

$y=\frac{1}{3}x+2$ ------> equation A

<em>The equation of the second line</em>

$y=\frac{4}{3}x-5$ ------> equation B

Solve the system of equations by elimination

Multiply equation A by -4 both sides

$(-4)y=(-4)(\frac{1}{3}x+2)$

$-4y=-\frac{4}{3}x-8$ --------> equation C

Adds equation B and equation C

$y=\frac{4}{3}x-5\\-4y=-\frac{4}{3}x-8\\--------\\y-4y=-5-8\\-3y=-13\\y=\frac{13}{3}$

<em>Find the value of x</em>

substitute the value of y

$\frac{13}{3}=\frac{1}{3}x+2$

$\frac{1}{3}x=\frac{13}{3}-2$

Multiply by 3 both sides

$x=13-6$

$x=7$

therefore

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2 years ago

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just olya [345]

Answer:

All of the options when substituted for b will make the root of b irrational

Step-by-step explanation:

Mathematically, surds are roots of non-perfect squares and they are tagged as irrational numbers

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So what this mean is that these numbers when put under the root umbrella are irrational numbers as they are not perfect squares

8 0

2 years ago