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zzz [600]
3 years ago
6

PLEASE HELP. algebra homework question 3.

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
8 0

Answer:

(x^2-10x+25)/4

Step-by-step explanation:

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Hey all! This is the another one, pls show the working......
zhannawk [14.2K]

Answer:

Hi again, I'm here to answer!

The correct answers:

10. x = -7 2/3

11. x = 2

12. x = 3

Step-by-step explanation:

(x + 3)/2 = (x - 4)/5

(5x + 15)/10 = (2x - 8)/10

3x/10 = -23/10

x = -23/3

x = -7 2/3

(2x - 1)/3 = x/2

(4x - 2)/6 = 3x/6

x/6 = 2/6

x = 2

(3x + 1)/5 = 2x/3

(9x + 3)/15 = 10x/15

-x/15 = -3/15

x = 3

Hope this helped!

8 0
3 years ago
61°<br> 115<br> 5<br> 2<br> 4<br> 80°<br> 3<br> 7<br> 6
ser-zykov [4K]

Answer:

Step-by-step explanation:

Isusuah

3 0
4 years ago
A local agricultural cooperative claims that 55% of about 60,000 adults in a country believe that gardening should be part of th
insens350 [35]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.0409 = 4.09% probability that, from a simple random sample of 300 adults in the county, less than 50% would say they believe that gardening should be part of the school curriculum.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

  • It 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, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sample proportions for a proportion p in a sample of size n has \mu = p, s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • The proportion is of 55%, hence p = 0.55
  • The sample has 300 adults, hence n = 300

Then, the <u>mean and the standard error</u> are given by:

\mu = p = 0.55

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.55(0.45)}{300}} = 0.0287

The probability is the <u>p-value of Z when X = 0.5,</u> hence:

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

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.5 - 0.55}{0.0287}

Z = -1.74

Z = -1.74 has a p-value of 0.0409.

0.0409 = 4.09% probability that, from a simple random sample of 300 adults in the county, less than 50% would say they believe that gardening should be part of the school curriculum.

A similar problem is given at brainly.com/question/25800303

8 0
3 years ago
What is the value of x?
maw [93]
X+(4x-20)=180
=>5x-20=180
=>5x=200
=>x=40
8 0
3 years ago
Help me. Please due today
Schach [20]

Answer:

2). As x-> -∞, f(x)->∞

    As x-> ∞, f(x)-> -∞

5). As x-> -∞, f(x)-> -∞

    As x-> ∞, f(x)-> ∞

3). As x-> -∞, f(x)-> -∞

    As x-> ∞, f(x)-> ∞

6). As x-> -∞, f(x)-> ∞

    As x-> ∞, f(x)-> ∞

Step-by-step explanation:

I just watched a quick video so you can't completely trust me, but i tried my best. Hopefully someone more trustworthy for this comes in.

6 0
3 years ago
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