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3 years ago

Write the equation x^2 - 4x = -12 in standard form

Mathematics

2 answers:

Eduardwww [97]3 years ago

6 0

Standard from is ax² + bx + c = 0

Just do the opposite of -12 on both sides
ANSWER: x² - 4x + 12 = 0

wlad13 [49]3 years ago

4 0

Heya user☺☺

The standard form will be

x^2 - 4x + 12 =0

Hope this will help☺

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Describe how to write 3x+2y=12 in function notation. Assume that y represents the dependant variable.

kotegsom [21]

Im not so sure but, 3x2=6; 2x3=6; 6+6=12

5 0

3 years ago

Helpppp please any answers

hoa [83]

Step-by-step explanation:

2 + 3 × 6 + 4 × 3

Here, Parantheses should be put,

<u>(2 + 3) </u>× 6 + 4 × 3. (P.E.D.M.A.S) ( First Parantheses)

= 5 × 6 + 4 × 3 (Then multiplication)

= 30 + 12. (At last addition)

= 42

7 0

2 years ago

A package contains 12 resistors, 3 of which are defective. If 4 are selected, find the probability of getting

s344n2d4d5 [400]

Answer:

Incomplete question, but I gave a primer on the hypergeometric distribution, which is used to solve this question, so just the formula has to be applied to find the desired probabilities.

Step-by-step explanation:

The resistors are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

12 resistors, which means that $N = 12$

3 defective, which means that $k = 3$

4 are selected, which means that $n = 4$

To find an specific probability, that is, of x defectives:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = x) = h(x,12,4,3) = \frac{C_{3,x}*C_{9,4-x}}{C_{12,4}}$

7 0

3 years ago

Hi, please help me :)

bearhunter [10]

Answer:

D. Linear

The answer is negative linear, because when it incresing from 0 to 1 to 2 to 3 (year) it always deacreasing in the value($).

4 0

3 years ago

Someone please help this is due tomorrow;(

nevsk [136]

Sorry if my handwriting sloppy.

I showed all of it step by step.

7 0

3 years ago