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icang [17]
3 years ago
6

What are the solutions to the equation 3(X -4)(X +5) =0

Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0
Answer should be: X = 4, -5
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I have no idea what im doing
omeli [17]

Answer:

  • x = - 6

Step-by-step explanation:

A hole is an input value that makes both numerator and denominator equal to zero.

<u>Let's factorize the numerator and denominator:</u>

  • 3x² - 108 = 3(x² - 36) = 3(x + 6)(x - 6)
  • x² + 2x - 24 = x² + 6x - 4x - 24 = x(x + 6) - 4(x + 6) = (x - 4)(x + 6)

<u>We have same factor of x + 6:</u>

  • x + 6 = 0
  • x = - 6 is a hole
8 0
2 years ago
1. What is the distance between the points (-3,0) and (3, 8) in the xy-plane?
olga_2 [115]
The answer is c
Ok please thanks me if I’m correct
If is not correct comment
8 0
3 years ago
Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains 200 L of a dyesolution with a c
nordsb [41]

Answer:

Time,t that it will elapse before the concerntration of the dye in the tank reaches1% of its original value is 460.52 seconds

Step-by-step explanation:

Let Q(t) = amount of dye for all time,t.

Let Q'= rate in - rate out.

But Q/200 = concerntration of dye

Therefore rate out= Q/200 ×2.

Q'/Q = - 1/100

Dividing by Q gives

Ln/Q/ + c = -1/100t + c1

Integrating both sides with respect to t

Ln/Q/ = -1/100t + c2.

c1 and c1 are just another constants

Q= c3e^-t/100

Exponentiating both sides will cause the absolute values to get absorbed into the constants giving rise to a new constant c3

200= c3-0/100

c3= 200

2= 200e^-t/100

Ln1/100= - t/100

Ln0.01 = - t/ 100

Cross multiply

t= Ln0.01 × 100

t = 4.6052 ×100

t = 460.52seconds

7 0
3 years ago
6x + 12 + 2x - 4 <br> Can u help me pls
Ray Of Light [21]

Answer:

8x+8

Step-by-step explanation:

6x+2x=8x      12-4=8

3 0
2 years ago
Linda scored 35, 47, and 42 points on three tests. How many points should she get on the fourth test to get an average score of
Taya2010 [7]
(35+47+42+x)/4 = 50
(35+47+42+x)=4*50
124 +x  = 200
x=200 - 124
x= 76

Answer B. 76 points.
6 0
3 years ago
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