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3 years ago

I will give Brainliest to whoever can get here first!

Mathematics

1 answer:

USPshnik [31]3 years ago

5 0

Answer:

The answers would be as follows:

Step-by-step explanation:

We can tell that the first two have an infinite number of solutions because when we try to solve, we get a true statement. The first one is done for you below.

-6x + 7 = -6x + 7 ------> Add 6x to both sides

7 = 7 (TRUE STATEMENT)

We can tell the next two have no solution due to the fact that they develop a false statement when trying to solve.

-3x + 7 = 3x + 7 ----> Subtract 7 from both sides

-3x = 3x ---> Divide by 3

-x = x (UNTRUE STATEMENT)

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Help me with this question im not good at math

vitfil [10]

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3 years ago

Is (x-7) a factor of 23 - 322 – 48x + 140?

asambeis [7]

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2 years ago

Write 6x-2y=-12 in slope intercept form

FinnZ [79.3K]

Answer:

y = 3x +6

Step-by-step explanation:

6x-2y=-12

Slope intercept form is y = mx+b where m is the slope and b is the y intercept

Subtract 6x from each side

6x-6x-2y=-6x-12

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2 years ago

"Your teacher brings two bags of colored goldfish crackers to class. Bag I has 25% red crackers and Bag II has 35% red crackers.

emmasim [6.3K]

Using the Central Limit Theorem, it is found that the standard deviation is of 0.0971.

<h3>What does the Central Limit Theorem states?</h3>

It states that for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1 - p)}{n}}$ , as long as $np \geq 10$ and $n(1 - p) \geq 10$ .

It also states that when two variables are subtracted, the standard deviation is the square root of the sum of the variances.

In this problem, for each sample, the standard error is given by:

$s_I = \sqrt{\frac{0.25(0.75)}{50}} = 0.0612$

$s_{II} = \sqrt{\frac{0.35(0.65)}{40}} = 0.0754$

Hence, for the distribution of differences, it is given by:

$s = \sqrt{s_I^2 + s_{II}^2} = \sqrt{0.0612^2 + 0.0754^2} = 0.0971$

More can be learned about the Central Limit Theorem at brainly.com/question/24663213

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2 years ago

A homemade dvd of a television series contains 20 episodes. the episodes are 55 minutes each, but contain commercials. if commer

prohojiy [21]

1/5 of 55 is 11, you multiply 11 by 20 and you get 220. Total there is 1100 minutes of tv so then you subtract 220 from 1100 and there is 880 minutes of tv without commercials then you divide that by 60 and you get 14 hours and 20 minutes.

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3 years ago