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Vikentia [17]
3 years ago
5

I have a question , My grandfather asked me a very old question . This question is of his time probably.

Mathematics
1 answer:
s2008m [1.1K]3 years ago
5 0
Found this, maybe it helps
कोड़ी
स्त्रीलिंग
बीस का समूह।
विशेषण
बीस।
You might be interested in
The Diagram shows the net of a square pyramid and its dimensions ​
Serjik [45]

<u>Answer:</u>

<h2>SA = 84 ft²</h2>

<u>Explanation:</u>

SA = the area of one side of the pyramid times 4 + the area of the base of the pyramid

Area of a triangle = (height × base)/2

Area of a sqaure = lenght²

given:

h = 4 ft | b = 6 ft | l = 6 ft

SA = 4(h×b×1/2) + l²

SA = 4(4×6×1/2) + 6²

SA = 4×12 + 36

SA = 48 + 36

SA = 84 ft²

3 0
3 years ago
A population has a mean of 300 and a standard deviation of 40. Suppose a sample of size 100 is selected and is used to estimate
bazaltina [42]

Answer:

a: 0.9544 9 within 8 units)

b: 0.9940

Step-by-step explanation:

We have µ = 300 and σ = 40.  The sample size, n = 100.  

For the sample to be within 8 units of the population mean, we would have sample values of 292 and 308, so we want to find:

P(292 < x < 308).

We need to find the z-scores that correspond to these values using the given data.  See attached photo 1 for the calculation of these scores.

We have P(292 < x < 308) = 0.9544

Next we want the probability of the sample mean to be within 11 units of the population mean, so we want the values from 289 to 311.  We want to find

P(289 < x < 311)

We need to find the z-scores that correspond to these values.  See photo 2 for the calculation of these scores.

We have P(289 < x < 311) = 0.9940

5 0
3 years ago
Determine the slop of the line passing through (-3,7) and (9,-2)
enot [183]
The slope is 3/4. you need to find the change of y over the change of x.

5 0
3 years ago
The First Chicago Bank is reviewing its service charges and interest-paying policies on checking accounts. The daily balance of
mrs_skeptik [129]

Answer:

The percentage of the bank's customers carry daily balances between $700 and $1,000 is 65.7%.

The minimum daily balance on which it should be willing to pay interest is $1,198.

Step-by-step explanation:

We have a normal distribution with mean = $800 and standard deviation = $150.

a) We can calculate this value with the standard normal distribution, calculating the z-value for $700 and $1,000.

z_1=\frac{x-\mu}{\sigma} =\frac{700-800}{150}= \frac{-100}{150} =-0.67\\\\\\z_2=\frac{1,000-800}{150}=\frac{200}{150}=1.33\\\\\\P(700

The percentage of the bank's customers carry daily balances between $700 and $1,000 is 65.7%.

b) We must calculate from what amount only 6% of the accounts remain.

This is done by solving:

P(z>x)=0.06

This happens for a z-value of z=2.652.

This corresponds to a amount of $1,198.

x=\mu+z*\sigma=800+2.652*150=800+398=1,198

The minimum daily balance on which it should be willing to pay interest is $1,198.

8 0
3 years ago
Use number sense to solve the equation. 3x + 14 = 23 A. 3 B. 6 C. 9 D. 4
Artist 52 [7]

Answer:

x=3

Step-by-step explanation:

3x + 14 = 23

3x=23-14

3x=9

x=9/3

x=3

option A is the correct answer

5 0
3 years ago
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