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Crazy boy [7]
3 years ago
11

If Y=X2 -2x - 3 , what is y when x =3

Mathematics
1 answer:
allochka39001 [22]3 years ago
3 0

Answer:

-3 ?

Step-by-step explanation:

idk if thats right but i just plugged in 3 to x and solved from there

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How would you write .54545454... (Repeating) as a fraction? Please explain the process!
Pani-rosa [81]
You would write .54 with a line across the 54 because that's the number repeating
5 0
4 years ago
Rewrite the expression by factoring :<br> 12x + 18
kifflom [539]

Answer:

Answer is below

Step-by-step explanation:

Factor 12x+18

12x+18\\=6(2x+3)

7 0
3 years ago
A building manager installs sensors to see how often people turn of the lights when they leave a room. After a month the manager
RideAnS [48]

Answer:

The confidence level for a confidence interval of 46.4% to  47.6% is 99.7%.

Explanation:

First of all, the choices for this question are missing so I will include the ones I found for this exact question. The missing options are as follows:

A. 85% B. 95% C. 68% D. 99.7%

When it comes to statistics, a confidence interval (CI) is  a type of interval estimate  of a population parameter. Statistics is all about drawing conclusions in the face of uncertainty. Whenever you take a sample, you can’t be completely certain that your sample truly reflects the population it’s drawn from.

In conclusion, from the choices presented, the best option is the last one. Option D.


5 0
4 years ago
Read 2 more answers
8^1/6 x2^x=32^1/2 work out the exact value of x
solniwko [45]

Answer:

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7 0
3 years ago
Determine the maximum number of zeros and the x-intercepts of the function: (x^2-x-2)(3x-2)
schepotkina [342]

Answer:

3

Step-by-step explanation:

note that zeros and x-intercepts are the same with different names

There are 2 zeros from the quadratic factor and 1 from the linear factor.

To find them equate the function to zero, that is

(x² - x - 2)(3x - 2) = 0

(x - 2)(x + 1)(3x-2) = 0 ← factoring the quadratic

equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x + 1 = 0 ⇒ x = - 1

3x - 2 = 0 ⇒ x = \frac{2}{3}


4 0
3 years ago
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