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3 years ago

Z/oom meeting now here is the stuff ID: 593 447 7104 PW: isEnb5

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

4 0

Answer:

okay

Step-by-step explanation:

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Mr.johnson can travel for 6 hours while taking 3 breaks of 12 minutes each Once,he had to travel for 36 hours. How many minutes

dlinn [17]

He took 4 minutes in breaks

3 0

4 years ago

If a globe rotates through 150 degrees in 5 seconds, how many rotations does it make in 30

Nady [450]

Answer:

4,500

Step-by-step explanation:

150 x 30

15 x 3 = 45, add 2 0's at end, 4,500

6 0

3 years ago

How many terms are in the following sequence? 131072, ..., 8, 4, 2

Klio2033 [76]

Answer:

17 terms

Step-by-step explanation:

131072 = 2^17

8 = 2^3

4 = 2^2

2 = 2^1

Apparently, the sequence is powers of 2 from 17 down to 1, so there are 17 terms in the sequence.

8 0

3 years ago

Find the sum of -3x square- 4x +3 and 2x square -x +3

Lady_Fox [76]

Answer:

−x²−4x+3−x+3

Subtract x from −4x.

−x²−5x+6

Step-by-step explanation:

4 0

3 years ago

Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif

dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

Step:-1

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals $t_{0.01} =2.82$ (from tabulated value).

$The mean value = 0.0365$

$x±t_{0.01} \frac{S}{\sqrt{n-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{22} }$

$0.0365±2.82 \frac{0.0046}{4.690 }$

using calculator

$0.0365±0.00276$

Confidence interval is

$(0.0365-0.00276,0.0365+0.00276)$

$(0.0338,0.0392)$

the mean value is lies between in this confidence interval

(0.0338,0.0392).

Answer:-

using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.

4 0

3 years ago