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4 years ago

What equation has the numbers 7, 5, 6, and 3 and equals 75

Mathematics

1 answer:

MrRa [10]4 years ago

4 0

Answer:

7 + 5 = 12 * 6 = 72 + 3 = 75

Step-by-step explanation:

Guess and check basically

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You are scheduled to receive $15,000 in two years. When you receive it, you will invest it for six more years at 7.1 percent per

olga_2 [115]

Answer:

$22,637

Step-by-step explanation:

When u recive $15,000 you invest it at 7.1 percent per year.

To solve this we have to do a sume of all dollars that we have at the first year with the intrest, and that wil be the total for the second years. And repeat for the follows years.

1º year= 15,000*1.071 (7.1%)=$16,065

2º year= 16,065*1.071 (7.1%)=$17,206

3º year= 17,206*1.071 (7.1%)=$18,427

4º year= 18,427*1.071 (7.1%)=$19,735

5º year= 19,735*1.071 (7.1%)=$21,137

6º year= 21,137 *1.071 (7.1%)=$22,637

The total is the money at the end of the years= $22,637

7 0

3 years ago

What’s the correct answer for this?

Tems11 [23]

Answer:

Step-by-step explanation:

Cosine X= adjacent /hypotenuse

where adjacent=5 and hyp=13

Cos X=5/13

4 0

3 years ago

In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for

Setler [38]

Answer:

7) d)

standard error of the mean of one sample of 'n' observation = 0.20

8) a)

The margin of Error = 0.392

9) d

The 95% of confidence intervals are (8.61 , 9.39)

Step-by-step explanation:

solution:-

The Given data sample size 'n' = 81

Given Population standard deviation 'σ' = 1.8 hours

The standard error of the mean of one sample of 'n' observation is

Standard error (SE)

= $\frac{S.D}{\sqrt{n} }$

= σ / √n

= $\frac{1.8}{\sqrt{81} } =0.2$

standard error of the mean of one sample of 'n' observation = 0.20

Solution:-

The Given data sample size 'n' = 81

Given Population standard deviation 'σ' = 1.8 hours

Given the probability is 0.95

The z- score = 1.96 at 0.05 level of significance.

The margin of Error = $\frac{z_{0.95} S.D}{\sqrt{n} }$

= $\frac{1.96 (S.D)}{\sqrt{n} }$

= $\frac{1.96 (1.8)}{\sqrt{81} }$

= 0.392

The margin of Error = 0.392

Solution:-

The 95% of confidence intervals are

$(x^{-} - 1.96\frac{S.D}{\sqrt{n} } , x^{-} + 1.96\frac{S.D}{\sqrt{n} } )$

$(9 - 1.96\frac{1.8}{\sqrt{81} } , 9+ 1.96\frac{1.8}{\sqrt{81} } )$

(9 - 0.392 , (9 + 0.392)

(8.609 , 9.392)

The 95% of confidence intervals are (8.61 , 9.39)

4 0

3 years ago

A student skipped a step when she tried to convert 15 hours to seconds,and she got the following incorrect result ?

Gelneren [198K]

She did not convert 1 minute into 60 seconds. and 15 hours in seconds.
she did it like this:
15min ×60 seconds/1 min
900 seconds.
The SI unit of time is second so she should have converted the hours and minutes into seconds first and then start the calculation.

3 0

4 years ago

Read 2 more answers

A store manager is looking at past jewelry sales to determine what sizes of rings to keep in stock. The list shows the ring size

Rom4ik [11]

Mean: ( 9 + 7 + 6.5 + 7.5 + 7 + 8 + 5 + 6 + 7.5 + 8 ) : 10 = 7.15
Variance:
(Sigma)² = ( 1.85² + 0.15² + 0.65² + 0.35² + 0.15² + 0.85² + 2.15² + 1.15² + 0.35² + 0.85² ) : 10 ≈ 1.15
Answer: C ) 1.15

4 0

4 years ago

Read 2 more answers