All categories

3 years ago

Expand. Your answer should be a polynomial in standard form. (6x+1)(1-3x)

Mathematics

2 answers:

Elza [17]3 years ago

6 0

Answer:

$-18x^2+3x+1$

Step-by-step explanation:

$6x *1=6x\\6x*-3x=-18x^2\\1*1=1\\1*-3x=-3x\\$

Add all the like terms

$-9x^2+3x+1$

Ludmilka [50]3 years ago

3 0

Answer:

3x-18x^2+1

Step-by-step explanation:

(6x+1)(1-3x)

6x-18x^2+1-3x

6x-3x-18x^2+1

3x-18x^2+1

Hope this helps :)

You might be interested in

Write the following inequality in slope-intercept form for -4 x + 2y > -8

Aleksandr-060686 [28]

Answer:

The answer is "y < 2x - 4".

Step-by-step explanation:

Write in <u>slope-intercept</u> form, the formula is "y = mx + b"

6 0

2 years ago

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the en

GuDViN [60]

Answer:

$P = 0.1447$

Step-by-step explanation:

Given

$n = 7000$ -- total

$d = 180$ --- defective

$r = 6$ --- selected

Required

The probability of rejecting the batch

This means that at least one of the selected piece is defected.

So, we first calculate the probability that all the selected piece are accepted.

So, we have:

$Pr = \frac{7000 - 180}{7000} * \frac{6999 - 180}{6999}* \frac{6998 - 180}{6998}* \frac{6997 - 180}{6997}* \frac{6996 - 180}{6996}* \frac{6995 - 180}{6995}$

The denominator decreases by 1 because it is a probability without replacement; 180 is subtracted from the numerator to represent the number of non-defective CDs

So, we have:

$Pr = \frac{6820}{7000} * \frac{6819}{6999}* \frac{6818}{6998}* \frac{6817}{6997}* \frac{6816}{6996}* \frac{6815}{6995}$