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victus00 [196]
3 years ago
10

Multiply (−4) × (−2) × (−5).

Mathematics
2 answers:
babunello [35]3 years ago
6 0

Answer: -40 or negative forty

Step-by-step explanation:

adoni [48]3 years ago
5 0
Answer: (-4) * (-2)= 8
(-5) * 8= -40

-40

Hope this helps :))
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If c(x) = 4x - 2 and d(x) = x + 5x what is (c×d)(x)?​
g100num [7]

Answer:

24x^2 - 12x

Step-by-step explanation:

C=4x -2

D=x + 5x

(4x - 2) * (x +5x)

4x^2 + 20x^2 - 2x - 10x

=24x^2 - 12x

5 0
2 years ago
Solve the LP problem. If no optimal solution exists, indicate whether the feasible region is empty or the objective function is
Volgvan

Answer:

(x,y)=(0,7.333)

Step-by-step explanation:

We are required to:

Maximize p = x + 2y subject to

  • x + 3y ≤ 22
  • 2x + y ≤ 14
  • x ≥ 0, y ≥ 0.

The graph of the lines are plotted and attached below.

From the graph, the vertices of the feasible region are:

  • (0,7.333)
  • (4,6)
  • (0,0)
  • (7,0)

At (0,7.333), p=0+2(7.333)=14.666

At (4,6), p=4+2(6)=4+12=16

At (0,0), p=0

At (7,0), p=7+2(0)=7

Since 14.666 is the highest, the maximum point of the feasible region is (0,7.333).

At x=0 and y=7.333, the function p is maximized.

7 0
3 years ago
A simple random sample of 13 four-cylinder cars is obtained, and the braking distances are measured. The mean braking distance i
Tanya [424]
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PLEASE HELP!?!?!
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3 years ago
X and y is the variable <br> 4x-7y=3<br> x-7y=-15<br><br> what is the answer please
andrezito [222]
Use linear combination to solve this. It is much faster than substitution. I would start by multiplying the bottom equation by -1.
<span>4x-7y=3
-x+7y=15</span>
Then, add the two equations together. The result is:
3x=18.
You've eliminated one variable. Now you can solve for the other one.
Divide both sides by 3 to get
x=6
Plug this into one of the original equations, then solve for y
-(6)+7y=15
7y=21
y=3

Check your work by plugging these values into both equations to see if they remain true

6 0
3 years ago
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