You start with $15 and save $8 each week. what algebraic expression models the total amount you have?

No links, No Wrong Answers, No Jokes, No Long Explanations.....

Harrizon [31]

Answer:

B (there is a negative correlation)

Step-by-step explanation:

the data set if you were put on a linear set, you be a negative and most of the points would fit through or around the slope. so it is a neagtive correlation

5 0

2 years ago

Read 2 more answers

Does anyone know this?

Natalija [7]

it is 24 vjsnvfvfjobbjgbnjg ngnbb

7 0

2 years ago

Sample Work Suppose you are constructing a LEGO Technic Land Rover Defender with a total of 2573 pieces. You have already put to

ahrayia [7]

Answer:

The relationship is linear.

Step-by-step explanation:

A linear relationship is a trend in the data that can be modeled using a straight line, such that a relationship between two variables x and y is linear if the rate of change is constant. That is, whenever x increases by 1, and it always increases by the same constant.

The constant by which y increases as x increases by 1 is called the slope and is denoted by the letter m. Being b the y-intercept, the linear relationship is modeled by the expression:

y=m*x + b

In this case x represents the minutes and y is the total number of pieces put together, so that each time x (minutes) increases by 1, "y" increases by 5 pieces. So knowing that you have already collected 253 pieces, the expression of the linear relationship is:

y=5*x + 253

The relationship is linear.

6 0

2 years ago

If 2^n + 1 is an odd prime for some integer n, prove that n is a power of 2. (H

vovikov84 [41]

Step-by-step explanation:

We will prove by contradiction. Assume that $2^n + 1$ is an odd prime but n is not a power of 2. Then, there exists an odd prime number p such that $p\mid n$ . Then, for some integer $k\geq 1$ ,

$n=p\times k.$

Therefore

$2^n + 1=2^{p\times k} + 1=(2^{k})^p + 1^p.$

Here we will use the formula for the sum of odd powers, which states that, for $a,b\in \mathbb{R}$ and an odd positive number $n$ ,

$a^n+b^n=(a+b)(a^{n-1}-a^{n-2}b+a^{n-3}b^2-...+b^{n-1})$

Applying this formula in 1) we obtain that

$2^n + 1=2^{p\times k} + 1=(2^{k})^p + 1^p=(2^k+1)(2^{k(p-1)}-2^{k(p-2)}+...-2^{k}+1)$ .

Then, as $2^k+1>1$ we have that $2^n+1$ is not a prime number, which is a contradiction.

In conclusion, if $2^n+1$ is an odd prime, then n must be a power of 2.

4 0

2 years ago

A cookie recipe that yields 48 cookies calls for 2 cups of flour. a different cookie recipe that yields sixty cookies calls for

Serhud [2]

48 cookies from 2 cups of flour, rate = 48 cookies / 2 cups = 24 cookies / cup

60 cookies from 3 cups of flour, rate = 60 cookies / 3 cups = 20 cookies / cup

If the rates were proportional, the rates would have the same answers.

Therefore the rates are not proportional.

6 0

2 years ago