Please help me with my math!!!

A retailer sold a fan for ra 1800 at 10% loss what is its cost price?<br> How to do

Rus_ich [418]

Answer:

18

thả 5 sao nha.....

Step-by-step explanation:

..................

7 0

3 years ago

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How many times larger is .7 than .700

prohojiy [21]

.7 & .700 are the same number

3 0

3 years ago

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For each table, calculate the mean weight for each group, XA and Xb, and find the difference of the mean

anyanavicka [17]

Answer:

First Randomization

Xa = 12.5, Xb = 11.26, Xa-Xb = 1.24

Second Randomization

Xa = 11.36, Xb = 12.6, Xa-Xb = -1.24

Third Randomization

Xa = 11.98 Xb = 11.98, Xa-Xb = 0

Step-by-step explanation:

Mean is the average weight of the numbers. The formula for calculating mean is as shown:

Mean xbar = sum of numbers/Total number present.

For first randomization:

Mean of A Xa = 13.6+12.1+15.9+11.2+9.7/5

Xa = 62.5/5

Xa = 12.5

Xb = 8.2+8.2+11.5+13.8+14.6/5

Xb = 56.3/5

Xb = 11.26

Mean difference Xa - Xb = 12.5-11.26

Xa-Xb = 1.24

For second Randomization:

Xa = 8.2+13.8+15.9+9.2+9.7/5

Xa = 56.8/5

Xa = 11.36

Xb = 12.1+14.6+13.6+11.2+11.5/5

Xb = 63.0/5

Xb = 12.6

Mean Difference Xa-Xb = 11.36-12.6

Xa-Xb = -1.24

For third randomization:

Xa = 8.2+9.7+11.5+14.6+15.9/5

Xa = 59.9/5

Xa = 11.98

Xb = 12.1+13.8+13.6+11.2+9.2/5

Xb = 59.9/5

Xb = 11.98

Mean Difference Xa-Xb = 11.98-11.98

Xa-Xb = 0

6 0

3 years ago

(9^3)^3 = ____<br><br> A) 9^0<br> B) 9^6<br> C) 9^9<br> D) 81

stepan [7]

<h2>Hello!</h2>

The answer is:

The correct option is:

C) $(9^{3})^{3}=9^{9}$

To solve the problem, we need to remember the power of a power property, it's defined by the following way:

$(a^{m})^{n}=a^{m*n}$

When we have a power of a power, we need to keep the base and then, the new exponent will be the product between the two original exponents.

So, we are given the expression:

$(9^{3})^{3}$

Then, calculating we have:

$(9^{3})^{3}=9^{3*3}=9^{9}$

Hence, we have that the correct option is:

C) $(9^{3})^{3}=9^{9}$

Have a nice day!

8 0

3 years ago

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Use long division to determine the decimal equivalent of 5 over 9. 0 point 3 bar 0 point 4 bar 0 point 5 bar 0 point 6 bar

LenaWriter [7]

Answer:

Option 3 - 0 point 5.

Step-by-step explanation:

Given : Decimal equivalent of 5 over 9.

To find : Use long division to determine the decimal?

Solution :

We have to divide 5 by 9,

Step 1 - Divide 5 by 9 as it is not divisible put a decimal and 0 after 5,

Step 2 - Now, divide 50 by 9 the quotient is 5 and remainder is 5.

Step 3 - Again put 0 and divide the number repeat the process until the remainder is not zero.

We have done the calculation up to 3-decimal place.

So, $\frac{5}{9}=0.555$

Approximately, $\frac{5}{9}=0.5$

So, Option 3 is correct.

Refer the attached figure for calculation.

5 0

4 years ago