3 years ago

What is the assoicative property of 10+(a+b)

1 answer:

4 0

Associative property means to change the grouping so you would have to change the parenthesis.
(10+a)+b
The order has to stay the same!

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Joey works 20 hours a week. If he works for 10 months continually, how many hours will he have worked? (1 month = 4 weeks)

Tcecarenko [31]

800 because 20*4*10=800 which means he works 80 weeks a month for 10 months

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4 years ago

What is the value of x in the equation 1.8 minus 3.7 x = negative 4.2 x + 0.3?

aniked [119]

Answer:

-3

Step-by-step explanation:

1. subtract 0.3 from both sides

2. add 3.7x to both sides

3. Divide both sides by -0.5

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3 years ago

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NEED HELP PLEASE!

USPshnik [31]

Answer:

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

$i^2 = -1$

Square of the sum:

$(x + y)^2 = x^2 + 2xy + y^2$

In this question:

$(x + (3+5i))^2$

$x^2 + 2x(3+5i) + (3+5i)^2$

$x^2 + 6x + 10xi + 9 + 30i + 25i^2$

$x^2 + 6x + 9 + (10x+30)i - 25$

$x^2 + 6x + (10x+30)i - 16$

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

5 0

3 years ago

What is the value of the expression below when y 8 and z = 8? 9y + 3z

aleksley [76]

Answer:

Step-by-step explanation:

8y+3z

9(8)+3(8)

72+24

6 0

3 years ago

NOT GRADED. <br>FIND THE MEASURE OF THE INDICATED ANGLE IN EACH TRIANGLE.

Setler [38]

Answer:

The angle in the box is always 50 and that other acute angle is 46

Hope this helps

Step-by-step explanation:

4 0

3 years ago

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