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3 years ago

Evaluate the numerical expression 9-(3×2)+8

2 answers:

8 0

9-(3x2)+8
9-(6)+8
3+8
=11
Use the order of operations. Always do the parenthesis first. Then the multiplication and division left to right. finally do the addition and subtraction left to right.

weeeeeb [17]3 years ago

6 0

9-(3×2)+8
9-6+8
3+8
11
hope that helped)

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Use the box method to distribute and simplify (-5x-2)(-2x^2+6x).

Mkey [24]

Answer:

$10x^{3} - 26x^{2} - 12x$

Step-by-step explanation:

1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.

$10x^{3} - 30x^{2} + 4x^{2} -12x$

2) Collect like terms.

$10x^{3} + (-30x^{2} +4x^{2} )-12x$

3) Simplify.

$10x^{3} - 26x^{2} -12x$

Therefor, the answer is, 10x^3 - 26x^2 - 12x.

3 0

2 years ago

Please help show work too please thank you

Black_prince [1.1K]

(3x-9) +(x+19)+x=180
5x+10=180
-10=-10
5x=170
5 = 5
x=34

2x+(2x+10)+x=180
5x+10=180
-10=-10
5x=170
5 = 5
x=34

yes they are similar

6 0

3 years ago

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius inc

larisa86 [58]

Answer:

In order to increase humidity by 49.17 grams per kilogram, the increase in temperature will be 18 degree Celsius approx.

Step-by-step explanation:

Initial humidity = 5.75 g/kg

Final humidity= 49.17 g/kg

Percentage increase in humidity= (49.17-5.75)/5.75 *100= 755.13

Increase in temperature= 755.13/43 = 17.56

Increase in temperature = 18 degree Celsius approx.

4 0

3 years ago

Read 2 more answers

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nexus9112 [7]

Answer:

1. Exponent

2. Multiplication

3. Subtraction

4. Square root

5. Addition

6. Division?

<em>Note: I am not very sure about my answer because of two things. 1. The proper order for operating is PEDMAS (Parentheses, Exponent, Multiplication, division, addition, and subtraction). There is no Square root in that operation so I will consider it in the middle. 2. There is no division operation in this problem.</em>

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3 years ago

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Name the property 3. 7/9* 1= 7/9

Nutka1998 [239]

Answer:

identify-multiplication

Step-by-step explanation:

anything you multiply by 1 is most likely going to be in the identify property

6 0

3 years ago