SOMEONE HELP ME WITH MY RECENT 3 QUESTIONS PLZ :)

Mathematics

1 answer:

earnstyle [38]2 years ago

7 0

Answer:

Hello! if you have any more questions that I know I will answer!

You might be interested in

What is the product of 2x + y and 5x - y +3?

lianna [129]

Answer:

7x+3

Step-by-step explanation:

2x+y

5x-y+3

Then you solve it by crossing out the y and adding the x’s.

7x+3

4 0

3 years ago

Solve and express the solution set in simplest form. 6x-1/5=3/1

ruslelena [56]

Follow the steps below:

5 0

3 years ago

For all integers n, if n2 is odd, then n is odd. Use a proof by contraposition, as in Lemma 1.1. Let n be an integer. Suppose th

Reil [10]

Let's assume that the statement "if n^2 is odd, then is odd" is false. That would mean "n^2 is odd" leads to "n is even"

Suppose n is even. That means n = 2k where k is any integer.

Square both sides

n = 2k
n^2 = (2k)^2
n^2 = 4k^2
n^2 = 2*(2k^2)

The expression 2(2k^2) is in the form 2m where m is an integer (m = 2k^2) which shows us that n^2 is also even.

So this contradicts the initial statement which forces n to be odd.

8 0

3 years ago

Chocolate chip cookies have a distribution that is approximately normal with a mean of 23.6 chocolate chips per cookie and a sta

nikklg [1K]

Answer:

Those values can be helpul to find an ideal range for the number of chocolate chips per cookie.

P(5) = 19.82 chips per cookie.

P(95) = 27.38 chips per cookie.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 23.6, \sigma = 2.3$