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3 years ago

What is the result of adding -3x2 - 5x + 1 and 8x2 - 2x - 9

Mathematics

1 answer:

Fudgin [204]3 years ago

6 0

(-3x^2 - 5x + 1) + (8x^2 - 2x - 9)

1st remove the parenthesis

-3x^2 - 5x + 1 + 8x^2 - 2x - 9

then combine like terms

5x^2 - 7x - 8 is the final answer

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Graph the feasibility region represented by the given inequalities and find the maximum profit if P = 4x + 5y. x ≥ 5 y ≤ 10 2x -

Brilliant_brown [7]

First, graph the three inequalities: x ≥ 5 , y ≤ 10 , 2x - y ≤ 8

Next, look for the 3 intersections (vertices) of the lines: (5, 2) , (5, 10) , (9, 10)

Finally, input the vertex coordinates into P = 4x + 5y and look for the biggest #.

(5, 2): 4(5) + 5(2) = 20 + 10 = 30

(5, 10): 4(5) + 5(10) = 20 + 50 = 70

(9, 10): 4(9) + 5(10) = 36 + 50 = 86

Answer: maximum profit = 86

8 0

3 years ago

How much would $300 invested at 7% interest compounded continuously be

Paha777 [63]

The correct awnser would be B because it is the only one rounded to the nearest cent

4 0

3 years ago

Read 2 more answers

Bob needs to tile his

malfutka [58]

Answer:

143ft

Step-by-step explanation:

12in is 1 foot and 13x11 (11x13) is 143

4 0

3 years ago

6/24 divided by 12/16

garri49 [273]

The answer is would be 1/3

7 0

3 years ago

????????????????????

Snowcat [4.5K]

Greetings!

Substitute:
$x+y=1000 \\ x=1000-y$
Now we can input this into the other equation so, we only have one variable.

Solve for y.
$0.05(1000-y)+0.06y=57$
Distribute the parenthesis.
$50-0.05y+0.06y=57$
Combine Like Terms.
$50-0.01y=57$
Add -50 to both sides.
$(50-0.01y)+(-50)=(57)+(-50)$
Simplify.
$0.01y=7$
Divide both sides by 0.01.
$(0.01y)/0.01=(7)/0.01$
Simplify.
$y=700$

Input this value into the other equation.
$x+700=1000$
Add -700 to both sides.
$(x+700)+(-700)=(1000)+(-700)$
Simplify.
$x=300$

The answer would be 300,700

Hope this helps.
-Benjamin

8 0

3 years ago