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Blizzard [7]
3 years ago
7

(2x-20) + 86 what is the the value of x

Mathematics
1 answer:
julsineya [31]3 years ago
6 0
When (2x-20)+86=0
2x-20=-86
2x=-46
x=-23
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HELP ME PLEASE I SUCK AT MATH I need work shown on this and I only need 3of Them Done Or Two So I Can Do the last one or soo I T
sineoko [7]
Simple 200 is the answer
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3 years ago
3x+4y+z=-2<br> 2y+3z=-8<br> z=-3
masya89 [10]

Answer:

z=-3 so 2y+3(-3)=-8, 2y-9=-8, add 9 to both sides 2y=1 divide both sides by 2, y=1/2, so 3x+4(1/2)+-3=-2, 3x+2-3=-2, 3x-1=-2, add 1 to both sides, 3x=-1, divide both sides by 3, x=-1/3

3 0
2 years ago
Read 2 more answers
How do you do the last two questions?
Mashutka [201]

Answer:

P = 6200 / (1 + 5.2e^(0.0013t))

increases the fastest

Step-by-step explanation:

dP/dt = 0.0013 P (1 − P/6200)

Separate the variables.

dP / [P (1 − P/6200)] = 0.0013 dt

Multiply the left side by 6200 / 6200.

6200 dP / [P (6200 − P)] = 0.0013 dt

Factor P from the denominator.

6200 dP / [P² (6200/P − 1)] = 0.0013 dt

(6200/P²) dP / (6200/P − 1) = 0.0013 dt

Integrate.

ln│6200/P − 1│= 0.0013t + C

Solve for P.

6200/P − 1 = Ce^(0.0013t)

6200/P = 1 + Ce^(0.0013t)

P = 6200 / (1 + Ce^(0.0013t))

At t = 0, P = 1000.

1000 = 6200 / (1 + C)

1 + C = 6.2

C = 5.2

P = 6200 / (1 + 5.2e^(0.0013t))

You need to change the exponent from negative to positive.

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3 years ago
Find the derivative of the function f(x)2x^4+x^3-x^2+4
eduard

Answer:

Step-by-step explanation:

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Which number line represents the solution set for the inequality 3(8-4x) &lt; 6(x - 5)?
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3(8 - 4x) < 6(x - 5) \\ 24 - 12x < 6x - 30 \\ 24 + 30 < 6x + 12x \\ 54 < 18x \\  \frac{54}{18}  <  \frac{18x}{18}  \\ x > 3

Solution : ] 3 , + ♾️ [

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