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3 years ago

Which property is represented below? (7 * 3) * 8 = 8 * (7 * 3)

Mathematics

1 answer:

Marina86 [1]3 years ago

6 0

9514 1404 393

Answer:

commutative property

Step-by-step explanation:

The <em>commutative property of multiplication</em> lets you swap the order of the operands (7*3) and 8 to make them have the order 8 and (7*3).

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How many solutions does the equation have? 6x+4x-6=24+9x

babunello [35]

Combine like terms.
10x+6=24+9x

Put variables to one side and the constants to another.
x=-18

There is only one solution.

Hope this helps!

5 0

3 years ago

Which ratio is not equivalent to 15 : 18?

Effectus [21]

The ratio 90: 105 is not equivalent to 15: 18

8 0

3 years ago

Question 1

Vitek1552 [10]

Answer:

$M.A.D= 4.9$

Step-by-step explanation:

Given

12.7, 22, 23.5, 24, 11, 22

Required

Determine the M.A.D

Start by calculating the Mean

$Mean = \frac{\sum x}{n}$

In this case, n = 6

So:

$Mean = \frac{12.7 + 22 + 23.5 + 24 + 11 + 22}{6}$

$Mean = \frac{115.2}{6}$

$Mean = 19.2$

Subtract the mean from each element

$12.7 - 19.2 = -6.5$

$22 - 19.2 = 2.8$

$23.5 - 19.2 = 4.3$

$24 - 19.2 = 4.8$

$11 - 19.2 = -8.2$

$22 - 19.2 = 2.8$

Take absolute value of the results above

$|-6.5| = 6.5$

$|2.8| = 2.8$

$|4.3| = 4.3$

$|4.8| = 4.8$

$|-8.2| = 8.2$

$|2.8| = 2.8$

The mean of the above gives the MAD

$M.A.D= \frac{\sum |x - u|}{n}$

$M.A.D= \frac{6.5 + 2.8 + 4.3 + 4.8 + 8.2 + 2.8}{6}$

$M.A.D= \frac{29.4}{6}$

$M.A.D= 4.9$

7 0

4 years ago

Choose Positive or Negative for each expression.

Anton [14]

Answer:

A. negative

B. positive

C. positive

D. negative

hope this helps!

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In a circle with a radius of 36 3/5 cm, an arc is intercepted by a central angle of 2π/7 radians. What is the arc length? Use

dezoksy [38]

Just took the quiz.

The answer is 32.84

8 0

3 years ago