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2 years ago

The question in the image! Please hurry :D

Mathematics

2 answers:

sergey [27]2 years ago

6 0

Answer:

While slavery was the major issue separating the North and South, it was not slavery itself that sparked the conflict. The South wanted to secede from the Union, and the North refused. While President Abraham Lincoln personally opposed slavery, he recognized that it was legal under the U.S. Constitution at the time. He also recognized that few in the North were ready to go to war to free the slaves. For Lincoln and the northern majority, preservation of the Union was the foremost goal.

wolverine [178]2 years ago

3 0

Answer:

8.85 * 10 ^17

Step-by-step explanation:

8.2 * 10 ^17 + 6.5 * 10 ^16

They must be to the same power to add

8.2 * 10 ^17 + .65 * 10 ^17

Add

8.85 * 10 ^17

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X+3/3=y+2/2,then x/3=

Nina [5.8K]

It would equal 3
i hope this helps

4 0

3 years ago

The average daily volume of a computer stock in 2011 was ų=35.1 million shares, according to a reliable source. A stock analyst

Shtirlitz [24]

Answer:

The null hypothesis is $H_o : \mu = 35 .1 \ million \ shares$

The alternative hypothesis $H_a : \mu \ne 35.1\ million \ shares$

The 95% confidence interval is $27.475 < \mu < 37.925$

Step-by-step explanation:

From the question the we are told that

The population mean is $\mu = 35.1 \ million \ shares$

The sample size is n = 30

The sample mean is $\= x = 32.7 \ million\ shares$

The standard deviation is $\sigma = 14.6 \ million\ shares$

Given that the confidence level is $95\%$ then the level of significance is mathematically represented as

$\alpha = 100-95$

$\alpha = 5\%$

=> $\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is $Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{ \sigma }{\sqrt{n} }$

substituting values

$E = 1.96 * \frac{ 14.6 }{\sqrt{30} }$

$E = 5.225$

The 95% confidence interval confidence interval is mathematically represented as

$\= x -E < \mu < \= x +E$

substituting values

$32.7 - 5.225 < \mu < 32.7 + 5.225$

$27.475 < \mu < 37.925$

6 0

2 years ago

Which function does not have an asymptote ?

kozerog [31]

Answer:

$y=\cos(x)$

Step-by-step explanation:

The function $y=secx=\frac{1}{cosx}$ .

There is a vertical asymptote at $cosx=0$

The function $y=cotx=\frac{cosx}{sinx}$ .

There is a vertical asymptote at $sinx=0$

The function $y=cscx=\frac{1}{sinx}$ .

There is a vertical asymptote at $sinx=0$

The function $y=cosx$ .

has no asymptote

3 0

3 years ago

you are doing chores to earn money, and you earn $3 for each chore you do. name the dependent variable d=$3c

dexar [7]

Answer:

The amount of money

Step-by-step explanation:

The amount of money depends on how many chores you do. The dependent variable is the money, and the independent variable is the amount of chores.

7 0

2 years ago

PLZZZ HELP Find the inverse of a 2x2 matrix Plz give answer .

liraira [26]

Answer:

$\left[\begin{array}{cc}-\frac{1}{2}&\frac{1}{6}\\-\frac{1}{2}&\frac{1}{3}\\\end{array}\right]$

Step-by-step explanation:

If a 2x2 matrix is given as:

$\left[\begin{array}{cc}a&b\\c&d\\\end{array}\right]$

The inverse is:

$\frac{1}{ad-bc}\left[\begin{array}{cc}d&-b\\-c&a\\\end{array}\right]$

Our matrix given is:

$\left[\begin{array}{cc}-4&2\\-6&6\\\end{array}\right]$

Using the formula, let's find the inverse:

$\frac{1}{ad-bc}\left[\begin{array}{cc}d&-b\\-c&a\\\end{array}\right]\\=\frac{1}{(-4)(6)-(-6)(2)}\left[\begin{array}{cc}6&-2\\6&-4\\\end{array}\right]\\=\frac{1}{-12}\left[\begin{array}{cc}6&-2\\6&-4\\\end{array}\right]\\=\left[\begin{array}{cc}-\frac{1}{2}&\frac{1}{6}\\-\frac{1}{2}&\frac{1}{3}\\\end{array}\right]$

4 0

3 years ago