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adell [148]
3 years ago
14

29) PLEASE HELP WITH QUESTION. MARKING BRAINLIEST + POINTS GIVEN.

Mathematics
1 answer:
Reika [66]3 years ago
3 0
 x^{4} -32 x^{2} -144 will factor into the following
( x^{2} +4)( x^{2} -36)
Set each factor equal to 0:
x^{2} +4=0 or x^{2} -36=0
x^{2} =-4         x^{2} =36
x = +/- 2i                         x = +/- 6

Answer: 2i, 6, -6
You might be interested in
Given f(x)=4/5x + 13, find the inverse f-¹(x)<br>Given f(x)= 3/x+10 + 4 find the inverse f-¹(x)​
Elodia [21]
  • f-¹(x) = 69/5y
  • f-¹(x) = 13 + 4y/(y + 10)

<h3>How to determine the inverse </h3>

The steps involved in determining the inverse of a function are;

  • Replace f(x) with y in the equation describing the function
  • Interchange x and y
  • Solve for y
  • Replace y by f-1(x)

If f(x) = 4/5x + 13

y = 4/5y + 13

y = 4 + 65 /5y

f^-1 = 4 + 65 /5y

f^-1(x)= 69/5y

If f(x)= 3/x+10 + 4

y = 3/y + 10 + 4

y = 3 + 4y + 10/(y + 10)

y = 13 + 4y/(y + 10)

f^-1(x) = 13 + 4y/(y + 10)

Thus, the inverse of the functions is 69/5y and 13 + 4y/(y + 10)

Learn more about functions here:

brainly.com/question/6561461

#SPJ1

5 0
2 years ago
PLEASE HELP! Find the missing length. The triangles are similar.
jeka57 [31]

Answer:

The missing length would be 24.

First, you find the ratio of 55 to 33.

This gets you approximately 1.66666667

Multiply 36 by 1.66666667. This will get you 60.

60 - 36 = 24

The unknown value is 24.

6 0
3 years ago
Read 2 more answers
40 is 50% of what number?<br> A. 20<br> B. 40<br> C. 60<br> D. 80
Alex787 [66]

Answer:

D. 80

Step-by-step explanation:

multiply 40 by 2 cause its 50 percent

5 0
3 years ago
Read 2 more answers
A large mixing tank initially contains 1000 gallons of water in which 40 pounds of salt have been dissolved. Another brine solut
sergey [27]

Answer:

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

Step-by-step explanation:

Given the data in the question;

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is?

dA/dt = rate in - rate out

first we determine the rate in and rate out;

rate in = 3pound/gallon × 5gallons/min = 15 pound/min

rate out = A pounds/1000gallons × 5gallons/min  = 5Ag/1000pounds/min

= 0.005A pounds/min

so we substitute

dA/dt = rate in - rate out

dA/dt =  15 - 0.005A

Therefore, If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

8 0
3 years ago
Solve for x<br><br>4x+6-7+9=18​
Alla [95]

here is your ans have a nice day

6 0
3 years ago
Read 2 more answers
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