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3 years ago

Pls help!!!!! i will give brainliest!!!!!

Mathematics

1 answer:

Sergio039 [100]3 years ago

3 0

Answer:

I believe it to be the first answer. Since, similar triangles always have the same slope.

Step-by-step explanation:

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what two tools and or resources will be helpful to you in your professional or academic experiences?

notsponge [240]

Answer:

SOWT analysis and career testing I think

3 0

3 years ago

The US Agency for Healthcare Research and Quality (www.ahrq.gov) reported that in 2010 the mean cost of a stay in a hospital for

zysi [14]

Answer:

We conclude that the population mean cost for a hospital stay for American women aged 18-44 has increased since 2010.

Step-by-step explanation:

We are given that the US Agency for Healthcare Research and Quality reported that in 2010 the mean cost of a stay in a hospital for American women aged 18-44 was $15,200.

A random sample of 400 hospital stays for American women aged 18-44 showed a mean cost of $16,000, with a standard deviation of $5000.

Let $\mu$ = population mean cost for a hospital stay for American women aged 18-44.

SO, Null Hypothesis, $H_0$ : $\mu$ $\leq$ $15,200 {means that the population mean cost for a hospital stay for American women aged 18-44 has reduced or remains same since 2010}

Alternate Hypothesis, $H_A$ : $\mu$ > $15,200 {means that the population mean cost for a hospital stay for American women aged 18-44 has increased since 2010}

The test statistics that will be used here is One-sample t test statistics as we don't know about the population standard deviation;

T.S. = $\frac{\bar X -\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean cost of a stay in a hospital for American women aged 18-44 = $16,000

s = sample standard deviation = $5,000

n = sample of hospital stays = 400

So, test statistics = $\frac{16,000-15,200}{\frac{5,000}{\sqrt{400} } }$ ~ $t_3_9_9$

= 3.20

Now at 5% significance level, the t table gives critical value of 1.645 at 399 degree of freedom for right-tailed test. Since our test statistics is more than the critical value of t as 1.645 < 3.20, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region.

Therefore, we conclude that the population mean cost for a hospital stay for American women aged 18-44 has increased since 2010.

8 0

3 years ago

given 65,72 and 96 as the three sides of a triangle, classify it as one of the following in the picture. please help!!!!

Valentin [98]

Answer: A) Acute

Step-by-step explanation:

Compare the sum of the squares of the two smaller numbers (a² + b²) to the square of the largest number (c²).

If a² + b² > c², then the triangle is Acute

If a² + b² = c², then the triangle is Right

If a² + b² < c², then the triangle is Obtuse

65² + 72² ____ 96²

4225 + 5184 ____ 9216

9409 > 9216 So, the triangle is Acute.

7 0

3 years ago

Solve −x−6≥−5 or −2x−5>4 and write the solution in interval notation. Note: Use improper fractions, if necessary.

marusya05 [52]

Answer:

(-∞, -1]

Step-by-step explanation:

−x−6≥−5

-x≥1

x≤-1

−2x−5>4

-2x>9

x<-9/2

So x < -9/2 V x ≤ -1

7 0

2 years ago

Tamara owns 595 shares of stock in a home appliance company. The value of the stocks is $12.75 per share. The company offers a 5

emmainna [20.7K]

Answer:

she would get 12.75 per eache 63.75 that the company gets hope this helps

Step-by-step explanation:

7 0

4 years ago