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3 years ago

8

The number of students in the period 7 study hall at Jens school is 4 times the number of students in Jen's homeroom. How many s

tudents are in the study hall if there are 16 students Jena home room?

2 answers:

SOVA2 [1]3 years ago

7 0

64 students in the study hall

dsp733 years ago

5 0

2 divided by 16 is 8

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STANDARD DEVIATION

givi [52]

Answer:

0.1527

Step-by-step explanation:

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Bachmann: 37%

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Standard Deviation = √0.63 × 0.37/100

= √(0.02331)

= 0.1526761278

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Answer:

$Volume = 12\sqrt{7}$ cubic units

Step-by-step explanation:

Volume of the square pyramid is given as ⅓*area of base*height of pyramid.

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Height of pyramid = altitude = $\sqrt{7}$ units

Plug the values into the formula to find volume.

$Volume = \frac{1}{3}*36*\sqrt{7}$

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$Volume = 12\sqrt{7}$ cubic units

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3 years ago

Molly can drive her car 112 miles on 4 gallons of gas and 182 miles on 6.5 gallons write an equation to show the relationship be

Rashid [163]

Answer:

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3 years ago

A 1414-ft ladder leans against a wall at a point 55 feet above the ground. how far is the bottom of the ladder from the wall?

viva [34]

Assume ladder length is 14 ft and that the top end of the ladder is 5 feet above the ground.

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3 years ago

The Scottsdale fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distr

IgorC [24]

<h2><u>Answer with explanation</u>:</h2>

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$H_0:\mu \leq4\\\\ H_a: \mu >4$

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Also, population standard deviation is given $\sigma=1$ , so we perform one-tailed z-test.

Test statistic : $z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

, where $\mu$ = Population mean

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$\overline{x}$ = Sample mean

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[We reject null hypothesis if p-value is larger than the significance level . ]

Conclusion : We do not have sufficient evidence to show that the goal is not being met at α = .01 .

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