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2 years ago

Pls help extra points

Mathematics

1 answer:

Step2247 [10]2 years ago

3 0

Answer:

the middle one

Step-by-step explanation:

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If you have seven classes take 3 test a week what’s the probability of you passing all of your test

nikklg [1K]

have a plan and using some good tools like anki ,or xmind to make your study more effective.

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2 years ago

What is the LCM of 16a 3 b and 24ab 2?

vitfil [10]

Do the operation:

3, 16, 24 | 2

3, 8, 12 | 2

3, 4, 6 | 2

3, 2, 3 | 2

3, 1, 3 | 3

1, 1

Answer:

$\boxed{\bf~The~answer~is~2^{4}~*~3~or~48.}$

Hope it helped,

Happy homework/ study/ exam!

6 0

3 years ago

Can someone help me please

Dafna1 [17]

Answer:

none

Explanation:

Fill in each option for x individually.

I) 9 $\leq$ -10 - 4(-1)

II) 9 $\leq$ -10 - 4(-3)

III) 9 $\leq$ -10 - 4(-2)

Then, simplify the right side of each inequality.

I) 9 $\leq$ -6

II) 9 $\leq$ 2

III) 9 $\leq$ -2

Each of these inequalities are flase. 9 is not less than or equal to any of these values, so the answer is none.

3 0

3 years ago

The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a n

xz_007 [3.2K]

Answer:

(15,595, 16,805)

Step-by-step explanation:

We have to:

m = 16.2, sd = 3.75, n = 150

m is the mean, sd is the standard deviation and n is the sample size.

the degree of freedom would be:

n - 1 = 150 - 1 = 149

df = 149

at 95% confidence level the t is:

alpha = 1 - 95% = 1 - 0.95 = 0.05

alpha / 2 = 0.05 / 2 = 0.025

now well for t alpha / 2 (0.025) and df (149) = t = 1,976

the margin of error = E = t * sd / (n ^ (1/2))

replacing:

E = 1,976 * 3.75 / (150 ^ (1/2))

E = 0.605

The 95% confidence interval estimate of the popilation mean is:

m - E <u <m + E

16.2 - 0.605 <u <16.2 + 0.605

15,595 <u <16,805

(15,595, 16,805)

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3 years ago

in order to prepare for building a brick patio, a rectangle measuring 8 feet by 10 feet must be marked off, then the dirt dug ou

Gala2k [10]

The sand makes up a rectangular prism of dimensions 8' by 10' by 0.5'.

The volume of sand is then V = L*W*H, or V = (10')(8')(0.5') = 40 cubic ft.

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2 years ago