All categories

3 years ago

Find the mean of the set of data. round to the nearest 10th if necessary.

Mathematics

1 answer:

dezoksy [38]3 years ago

3 0

Answer:

The mean of the data set is 9.3 rounded to the nearest tenth

Step-by-step explanation:

First you add them all together: 9.9 + 10.8 + 10.8 + 6.2 + 10.8 + 7.2 = 55.7

Then you divide it by how many numbers there are which is 6 in this situation:

55.7 ÷ 6 = 9.28333333333. but if we round it to the nearest tenth we get 9.3

So the answer is 9.3

You might be interested in

Plzzz helppp!! 9-4x=17????

AnnyKZ [126]

Answer:

<h3> $\boxed{ \bold{ \boxed{ \sf{x = - 2}}}}$ </h3>

Step-by-step explanation:

$\sf{9 - 4x = 17}$

Move 9 to right hand side and change it's sign

⇒ $\sf{ - 4x = 17 - 9}$

Subtract 9 from 17

⇒ $\sf{ - 4x = 8}$

Divide both sides of the equation by -4

⇒ $\sf{ \frac{ - 4x}{ - 4} = \frac{8}{ - 4}}$

Calculate

⇒ $\sf{x = - 2}$

Hope I helped!

Best regards!!

6 0

3 years ago

A customer borrowed 2000 and then further 1000 both repayable in 12 months .What would he have saved if he had taken out one loa

creativ13 [48]

Answer:

No savings

Step-by-step explanation:

Let the interest rate be same for all the loans and consider it to be R.

First case

Principal 1 = 2000

Time = 12 moths = $\frac{12}{12}$ = 1 year

Rate = R %

So, interest 1 = Principal * Time * Rate

= 2000 * 1 * R

= 2000R

Now,

Principal 2 = 1000

Time = 12 moths = $\frac{12}{12}$ = 1 year

Rate = R %

So, interest 2 = Principal * Time * Rate

= 1000 * 1 * R

= 1000R

Total interest to be paid = 2000R + 1000R

= 3000R

Second case

Principal = 3000

Time = 12 moths = $\frac{12}{12}$ = 1 year

Rate = R %

Interest = Principal * Time * Rate

= 3000 * 1 * R

= 3000R

We conclude that there would be no savings because the interest to be paid in both the cases are same.

5 0

4 years ago

Read 2 more answers

Write these in standard form :

kotegsom [21]

$8.23\cdot10^6=8.23\cdot1,000,000=8,230,000\\\\2.4\cdot10^5=2.4\cdot100,000=240,000$

$\text{The scientific notation:}\ a\cdot10^n\ (1\leq a < 10,\ n\in\mathbb{Z})\\\\4\underbrace{50000}_{\leftarrow5}=4.5\cdot10^5\\\\320=3.2\cdot100=3.2\cdot10^2\\\\0.\underbrace{0000006}_{7\rightarrow}73=6.73\cdot10^{-7}\\\\3\underbrace{2100000}_{\leftarrow7}=3.12\cdot10^7$

7 0

4 years ago

Use a special-product rule to factor the perfect-square trinomial. 81y^2+ 126y + 49

Ivahew [28]

Answer:

The perfect -square trinomial

(9y+7)²

Step-by-step explanation:

Explanation:-

Given polynomial equation

81 y² + 126 y +49

⇒ 9² y² + 2(9)(7)y + 7²

⇒ (9y)² + 2(9)(7)y +7²

we will use formula

(a+b)² = a² + 2ab +b²

⇒ (9y+7)²

Final answer:-

The perfect -square trinomial

(9y+7)²

7 0

3 years ago

What is the sign of − x y

serious [3.7K]

Answer:

it's negative!!!!!!!

3 0

3 years ago