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3 years ago

The equation of the line that has a slope of -1 and goes through (-3,0) is:

Mathematics

1 answer:

gayaneshka [121]3 years ago

8 0

I believe the answer is A, following y=mx+b

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If the scale factor for the dilation shown is 3, which is the length of B'C'?

Arturiano [62]

Answer:

Step-by-step explanation:

Scale Factor = 3

Using Formula:

Scale Factor = LengthOfDilatedTraingle/LengthOfActualTriangle

Scale Factor = B'C'/B'C'

B'C' = 3 * 5

B'C' = 15

5 0

2 years ago

Your friend Jamie rolled a number cube and got the number 5. in his next turn he says he won’t be able to roll another 5 because

konstantin123 [22]

No, the probability of getting a 5 is 1/6, but you could roll any number of fives in a row. It is just as likely to get rolled the second time as it was the first.

8 0

3 years ago

Read 2 more answers

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago

v A square garden has an area of 110 square feet. a. What is the approximate length of one side of the garden? Round to the near

tankabanditka [31]

Idkdkdndmnebebebwbwwjwo

8 0

3 years ago

Factorise fully the following:<br>a) x² + 2x<br>b) 2x² - 6x<br>c) 15x - 10x³<br>d) 9x² + 3x³

Lostsunrise [7]

Answer:

a) $x(x+2)$

b) $2x(x-3)$

c) $5x(3-2x^2)$

d) $3x^2(3+x)$

Step-by-step explanation:

a) $x^2+2x$

When factoring a binomial (a polynomial with two terms), what we will be looking for are the terms that are shared between them.

In this problem, it can be seen that both of these terms have and x. This means that we can factor it out to get

$x(x+2)$

b) $2x^2-6x$

What are the common terms here?

It can be seen that each of these share a 2x, so our factored form would be

$2x(x-3)$

c) $15x-10x^3$

What about this one?

The common factor of this one is 5x, so our factored form would be

$5x(3-2x^2)$

d) $9x^2+3x^3$

The common factor of this one is $3x^2$ , so our factored form would be

$3x^2(3+x)$

6 0

3 years ago