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alex41 [277]
3 years ago
13

Images attached have the questions.

Mathematics
1 answer:
Otrada [13]3 years ago
8 0
1) is: (4,-1)

I: x>3
II: y<=2*x-5

a: (5,6):
I: 5>3 ?yes
II: 6<=2*5-5
6<=5 ?no
This is not a solution

b: (4,-1):
I: 4>3 ?yes
II: -1<=2*4-5
-1<=3 ?yes
This is a solution

c: (-3,-1):
I: -3>3 ?no
This is not a solution

d: (1,11):
I: 1>3 ?no
This is not a solution

2) is (8,-1):

I: x+y>=5
II: x-2*y>8

a: (6,1):
I: 6+1>=5
7>=5 ?yes
II: 6-2*1>8
4>8 ?no
This is not a solution

b: (8,-1):
I: 8+-1>=5
7>=5 ?yes
II: 8-2*-1>8
10>8 ?yes
This is a solution

c: (6,2):
I: 6+2>=5
8>=5 ?yes
II: 6-2*2>8
2>8 ?no
This is not a solution

d: (6,-2):
I: 6+-2>=5
4>=5 ?no
This is not a solution

3) is (6,2):

I: 2*x+4*y>0
II: -x+5*y>0

a: (0,0):
I: 2*0+4*0>0
0>0 ?no
This is not a solution

b: (-4,-2):
I: 2*-4+4*-2>0
-16>0 ?no
This is not a solution

c: (6,2):
I: 2*6+4*2>0
20>0 ?yes
II: -6+5*2>0
4>0 ?yes
This is a solution

d: (6,0):
I: 2*6+4*0>0
12>0 ?yes
II: -6+5*0>0
-6>0 ?no
This is not a solution
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A specialty store sells items that are priced at exactly $3, $5, or $10. The store manager figures that 16% of inventory is pric
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Answer:

$7.28

Step-by-step explanation:

The average price, or the expected price, of any item in this specialty store is given by the weighted average of each item's price. That is, the sum of the products of each individual price by its corresponding sales mix:

AP =(0.16*\$3)+(0.32*\$5)+(0.52*\$10)\\AP=\$7.28

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3 years ago
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Simplify fully square root of 8 x square root of 18
Sati [7]

Answer:

12

Step-by-step explanation:

square root of 8 = 2.82842712475

square root of 18 = 4.24264068712

4.24264068712 × 2.82842712475 = 12

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3 years ago
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Which term does not describe a square?
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Answer: a

Step-by-step explanation:

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Since 1995 the cost of a bag of groceries has increased about 2.5% each year. The equation C = 25(1.025)x will give the value of
Marianna [84]

Answer: 28 years

Step-by-step explanation:

Given

The equation showing the value of the bag after x years is C=25(1.025)^x

If the price of the bag increased by 2.5%, from the equation, we can deduce that

Initial cost of the bag is 25

Double of the initial value is 50

Insert it in the equation

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It will take 28 years

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