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labwork [276]
3 years ago
8

Given that f(x) = 5x2 − 100, find x.

Mathematics
2 answers:
DaniilM [7]3 years ago
5 0
5^2-100=X
(5*5)
 25-100=X
       -75=X

hope this helps
julia-pushkina [17]3 years ago
5 0

Answer:

Here we have that f(x) = 5x^2 - 100 and we want to find x, this would mean, isolate the value of x.

First, we add 100 in both sides of the equation to remove the leftmost therm:

f(x) + 100 = 5x^2 - 100 + 100 = 5x^2

Now, we divide by 5 in both sides.

(f(x) + 100)/5 = (5x^2)/5 = x^2

Now, we apply the square root in both sides:

(+/-)√((f(x) + 100)/5) = √x^2 = x

Now you have the value of x, when someone gives you the value of f(x), you can find the two values of x asociated with it (there are two values of x asociated because f(x) is a quadratic function

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Answer:

Just be yourself.

Step-by-step explanation:

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Hope this helped...have a great day <3

4 0
3 years ago
Katie creates a game in which 3 dimes are flipped at the same time.
Vikentia [17]

<em>*100% Correct answers</em>

Question 1

A surgical technique is performed on 10 patients. You are told there is an 80% chance of success. Find the probability that the surgery is successful for exactly 6 patients.  

0.088

Question 2

Sam creates a game in which the player rolls 4 dice. What is the probability in this game of having at least 2 of the dice land on 5.  

0.13101963141  

Question 3

Katie creates a game in which 3 dimes are flipped at the same time.  

5 points are awarded if all 3 dimes land on tails, but no points are awarded for anything else. What is the probability of not getting any points? (Hint: Find the complement).  

0.875

5 0
3 years ago
If two sides are 36 feet what length is the long side and what type of triangle is it?
Aleks04 [339]

Answer: maybe 50.9

Step-by-step explanation: we can use the pythagorean theorem A^+B^=C^

36 x36 = 1,296

1,296 + 1,296 = 2,592

square root of 2,592 = 50.911688245431421756860794071549 rounded to 50.9

so your answer maybe 50.9

5 0
3 years ago
What's 5*(-2/3+3x) ?
sdas [7]
<span>5*(-2/3+3x)
= 15x - 10/3

hope it helps</span>
7 0
3 years ago
The length of the tunnel is 460 miles. If 1 inch represents 60 miles, what is the length of the scale drawing of the tunnel? Rou
Natasha_Volkova [10]

Answer:

7.66 inches

Step-by-step explanation:

In order to find the answer, you need to first find the ratio of miles to inches. You would do this by doing 460/60. In result you would have 7.66.

4 0
2 years ago
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