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Dimas [21]
3 years ago
5

Helpppppppppppppppppppppp

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0
A) false
3(5)-5
15-5
10

b)True
3(6)-5
18-5
13

c) false
3(7)-5
27-5
22
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If Carbon Monoxide had a concentration in the air of 0.000518% how many particles out of 331,002,651 would be Carbon Monoxide?
Alex17521 [72]

Answer:

171,459 particles of CO

Step-by-step explanation:

331,002,651×0.000518 = 171459

5 0
3 years ago
Select the correct answer.
stira [4]
B, because the lines connect at (1,-4) and (4,-1)
3 0
2 years ago
Find the value of A E B C and D please
Nikolay [14]
Looks like you've got 3 lines that are all parallel with one transversal diagonally running down the middle. 
Since all of the other lines are parallel to one another, there are only two different angle combinations to be made by the transversal and one of the other lines, one of which being the given 60º angle. 
The other one is found by subtracting that from 180 since a straight angle measures 180º. 
180 - 60 = 120 
The smaller ones are always 60º, and the larger ones are always 120º. 
That means that a = 60, b = 60, and d = 60 
It also means that c = 120 and e = 120. 
Hope this helps!
5 0
3 years ago
Suppose that 19 inches of wire costs 76 cents. At the same rate, how many inches of wire can be bought for 48 cents?
Andreyy89

Answer: 12 inches

Step-by-step explanation:

Because 19 inches costs 76 cents. If you divide 19/19 you get 1 inch. Also divide 76/19 and you get 4 cents. Now it’s asking how many inches could be bought for 48 cents. So 48/4 equals to 12 and that’s your answer. You see 19x4=76. And 12x4= 48. I hope that helped you.

5 0
3 years ago
What is the minimum value for z = -x + 3y over the feasibility region defined by the constraints shown above?
natima [27]

Answer:

The minimum value for  z=-x+3y  over the feasibility region is -1.

Step-by-step explanation:

Given conditions:

The function  z=-x+3y

Subject to the following constraint

x\geq 1

x\leq 7

y\geq 2

y\leq \frac{-1}{3}x+6

Graph the region correspond to the solution of the system of constraints as given below.

Now, from the graph we have the coordinates of the vertices of the region formed.

The vertices are (1,2) , (7,2), (1,5.667) and  (7,3.667).

now, evaluate the function  z=-x+3y  at each  vertex.

At (1,2),

z=-1+3\cdot 2=-1+6=5

At (7,2),

z=-7+3\cdot 2=-7+6=-1

At  (1,5.667)

z=-1+3\cdot 5.667=-1+17.001=16.001

At  (7,3.667)

z=-7+3\cdot 3.667=-7+11.001=4.001

So. the minimum value of function z=-x+3y over the feasible region is -1.








5 0
3 years ago
Read 2 more answers
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