3 years ago

Multiply and combine like terms to determine the product of these polynomials. (3x−6)(4x+1)

Mathematics

2 answers:

vova2212 [387]3 years ago

7 0

Answer using box method

= 12x^2 - 21x -6

icang [17]3 years ago

5 0

0.12 I think I’m not sure how to do this I ji at have an idea maybe I’m super wrong

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If you wanted to make the graph of y = 6x +7 less steep which equation could you use

algol [13]

Y=x+7 would make the slope less steep because the rate is not as big as 6.

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4 years ago

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If the bowl contains 5 red marbles 7 blue marbles and 8 white marbles what is the probability you will draw a blue and red marbl

topjm [15]

Answer:

none of those are correct.

Step-by-step explanation:

5 red

7 blue

8 white

5 red + 7 blue= 12

5 red + 7 blue + 8 white= 20

=12/20

=6/10

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2 years ago

What is the radius of a circumference 56.5

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3 years ago

the line I is a tangent to the circle x^2+y^2=50 at the point A. A is the point (1,7). the line crosses the x axis at the point

Sonja [21]

Answer:

what do you need help with

Step-by-step explanation:

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3 years ago

a study of nickels showed that the standard deviation of the weight of nickels is 300 milligrams. A coin counter manufacture wis

cupoosta [38]

Using the z-distribution, a sample of 609 nickels has to be weighed.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The margin of error is:

$M = z\frac{\sigma}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

z is the critical value.

n is the sample size.

$\sigma$ is the standard deviation for the population.

For this problem, the parameters are:

$M = 20, \sigma = 300, z = 1.645$

We solve for n to find the sample size, then:

$M = z\frac{\sigma}{\sqrt{n}}$

$20 = 1.645\frac{300}{\sqrt{n}}$

$20\sqrt{n} = 1.645 \times 300$

$\sqrt{n} = 1.645 \times 15$

$(\sqrt{n})^2 = (1.645 \times 15)^2$

n = 608.9

Rounding up, a sample of 609 nickels has to be weighed.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

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2 years ago