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Afina-wow [57]
3 years ago
15

0.2 ✕ -0.5 ✕ ( -0.9- -0.7)

Mathematics
2 answers:
boyakko [2]3 years ago
7 0
<h2><em>Answer:</em></h2>

<em>0</em><em>.</em><em>0</em><em>2</em>

<em>solution \\ 0.2 \times \:  - 0.5 \times ( - 0.9 - ( - 0.7)) \\  = 0.2 \times ( - 0.5) \times ( - 0.9 + 0.7) \\  = 0.2 \times( - 0.5) \times ( - 0.2) \\  =  - 0.1 \times ( - 0.2) \\  = 0.02</em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

Luba_88 [7]3 years ago
4 0

Answer:

0.02

Step-by-step explanation:

0.2\times -0.5\times (-0.9 - -0.7)= \\\\0.2\times -0.5 \times (-0.2)= \\\\0.02

Hope this helps!

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Step-by-step explanation:

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Lia must work at least 5 hours per week in her family’s restaurant for $8 per hour. She also does yard work for $12 per hour. Li
Fittoniya [83]

Answer:

(a)

r\geq  5

r+y\leq 15

8r+12y\geq 120

y\geq 0

(c)Maximum number of hours Lia can work at the restaurant and still meet her earnings goal = 15 hours

(d)Maximum Earning = $160

Step-by-step explanation:

Let r be the number of hours worked at the restaurant.

Let y be the number of hours of yard work,

Lia must work at least 5 hours per week in her family’s restaurant for $8 per hour.

r\geq  5

Since she does yard work, y\geq 0

Lia’s parents allow her to work a maximum of 15 hours per week overall.

r+y\leq 15

Lia’s goal is to earn at least $120 per week.

The restaurant, r pays $8 per hour

Yard work, y pays $12 per hour.

Therefore:

8r+12y\geq 120

The system of inequalities that represent this problem is therefore:

r\geq  5

r+y\leq 15

8r+12y\geq 120

y\geq 0

(b)The graph of the inequality is attached below

(c)When the graph is plotted, the vertices of the feasible region are:

  • (5,10)
  • (5, 6.7)
  • (15,0)

Where the first term is for the number of hours worked in the restaurant.

The maximum value of r possible is 15 from the three points.

Therefore, she can work at the restaurant for 15 hours and still meet her earning goal.

(d)Maximum Amount Lia can earn in 1 Week

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  • At (5, 6.7), Earning=(5X8)+(6.7X12)=40+80.4=$120.4
  • At (15,0) Earning=(15X8)+(0X12)=$120

Since she has to work at least 5 hours at the restaurant, the maximum amount possible is $160.

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jeka57 [31]
The correct answer to this question is  C. equation, –3

The equation is 
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x = -1 ; y = 0
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x = 2 ; y = 0
x  =3 ; y = -4

So, based from the table show, the steepest rate of change is <span>C. equation, –3</span>
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Alex

Answer:

B

Step-by-step explanation:

idk I think its correct

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