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3 years ago

PLEASE HELP!!!

Mathematics

1 answer:

Lelu [443]3 years ago

4 0

y = 3x - 2 is the answer!

y = mx + b

m = slope

b = y-intercept

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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Simplify 8x - 3 (4x -2)

mash [69]

Answer:

-4x+5

Step-by-step explanation:

use FOIL

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3 years ago

The orgin of the coordinate plane is the point at (0,0). Why is the orgin an important point?

stiks02 [169]

Importance of origin:

The point at which the two axes intersect is called the origin. The intersecting x- and y-axes divide the coordinate plane into four sections.

The origin is at 0 on the x-axis and 0 on the y-axis. Since the origin has an x-coordinate of 0 and a y-coordinate of 0, its ordered pair is written (0, 0).

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3 years ago

HELP PLEASE!!!! I need the answer ASAP!!!!

astraxan [27]

9514 1404 393

Answer:

c. y = (x +2)² -5

Step-by-step explanation:

If you replace the squared term with zero, you are choosing the minimum of the remaining values. (A squared term cannot have a negative value.)

a) 3

b) 4

c) -5 . . . . the graph with the least possible y-value

d) 0

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3 years ago

3. Which is equivalent to the expression below?

alexgriva [62]

Answer:

D. 2.2m + 4.5

Step-by-step explanation:

8 0

3 years ago

The amount of time that a 4th grader reads comic books in a week is normally distributed with a mean of 6 hours and a standard d

Reika [66]

Answer:

The probability that at least one of the 20 4th graders is addicted to comic books is 0.12.

Step-by-step explanation:

Let X = number of hours a 4th grader reads comics and Y = number of 4th grader addicted to reading comics.

The random variable X is continuous and follows a normal distribution with mean, μ = 6 hours and standard deviation, σ = 2 hours.

And the random variable Y is discrete and follows a binomial distribution with success defined as a 4th grader is addicted to reading comics.

Compute the probability that a 4th grader is addicted to reading comics as follows, i.e. determine the value of P (X > 11) .

$P(X>11) = P(\frac{X-\mu}{\sigma} >\frac{11-6}{2})\\=P(Z >2.5)\\=1-P(Z$

Use the Z-table for the probability value.

Now compute the probability that out of 20 fourth graders at least 1 is addicted to comics as follows:

The Binomial probability function is:

$P(Y)=^{n}C_{y} p^{y} (1-p)^{n-y}$

Compute the value of $P(Y\geq 1)$ as follows:

$P(Y\geq 1)=1-P(Y$

Thus, the probability that at least one of the 20 4th graders is addicted to comic books is 0.12.

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3 years ago