3 years ago

Which symbol replaces the box to make the statement true?

1 answer:

8 0

Answer:

0. toab1. The right answer for K12 is ( > ) I Took the test and is correct. 4×16-16 > 4× [24-2× (4+8)] heart outlined. Thanks 0. star outlined. star outlined. star outlined.

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kiruha [24]

Answer:

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3 years ago

What is the value of the expression 4x−y/2y x when x = 3 and y = 3? −3 1 9 18

ziro4ka [17]

(4x - y)/(2y + x) when x = 3 and y = 3 is
(4(3) - 3)/(2(3) + 3) = (12 - 3)/(6 + 3) = 9/9 = 1

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4 years ago

A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and the standard

ser-zykov [4K]

Answer:

Option a) A 95% confidence interval for the mean diameter of the 120 bearings in the sample is $10 \pm 1.96\displaystyle\frac{0.24}{\sqrt{120}}$ .

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 120

Sample mean = 10 mm

Standard Deviation = 0.24 mm

Formula:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$10 \pm 1.96\displaystyle\frac{0.24}{\sqrt{120}}$

Hence, the correct interpretation for the confidence interval is given by option a).

A 95% confidence interval for the mean diameter of the 120 bearings in the sample is $10 \pm 1.96\displaystyle\frac{0.24}{\sqrt{120}}$ .

We have to consider the factor of sampling of 120 ball bearings from a population of 10,000 ball bearings.

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3 years ago

P varies directly with Q and inversely with R, and P=10 when Q=5 and R=6. Find P when Q=6 and R=4.

Firdavs [7]

So P = Q/R (thats what the statement gave)

The P = 6/4 = 3/2

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3 years ago

Expand the following: (2 − 9b)7.<br><br> Anyone know this?

natta225 [31]

14- 63b is the answer :))))))))

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3 years ago

Read 2 more answers