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3 years ago

Find the value of the determinant.

Mathematics

1 answer:

anastassius [24]3 years ago

4 0

Answer:33

Step-by-step explanation: i just did the problem

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An article in IEEE International Symposium on Electromagnetic Compatibility (Vol. 2, 2002, pp. 667-670) describes the quantifica

Alenkinab [10]

Answer:

The answer is " $(-33.9218,-16.0782)\\\\$ ".

Step-by-step explanation:

Calculating the critical value:

Freedom Degree= 7.

The significance level, $\alpha= 0.05$

Using excel function the critical value:

$\to t_{\frac{\alpha}{2} (df)}=t_{\frac{0.05}{2},7}\\\\=T.INV.2T(0.05,7)\\\\=\pm 2.3646\\\\$

When $95\%$ of the confidence intervals for the difference of means:

$\to (\bar{x_1}-\bar{x_2}) \pm t_{\frac{\alpha}{2}}\sqrt{\frac{S_1^2}{n_1}+\frac{S_2^2}{n_2}}\\\\=(90-115) \pm 2.3646 \sqrt{\frac{5^2}{8}+\frac{102^2}{9}}\\\\=-25 \pm 2.3646 (3.773077)\\\\=(-33.9218,-16.0782)\\\\$

6 0

3 years ago

Two-variable linear equations 2x – 5y = 20

Lynna [10]

Y= (2x-20)/ 5 then you replace y so with a simple calculation u get x than u replace x with it value to get y as simple as that

7 0

3 years ago

Which of the following shows that polynomials are closed under subtraction when polynomial x + 5 is subtracted from 3x2 + 2x − 6

Art [367]

For this case we have the following polynomials:
$P = 3x ^ 2 + 2x - 6

Q = x + 5$
By subtracting both polynomials we have:
$P - Q = (3x ^ 2 + 2x - 6) - (x + 5)
$
What we must do is subtract terms of the same degree.
We have then:
$P - Q = 3x ^ 2 + (2x - x) + (-6 - 5)

P - Q = 3x ^ 2 + x - 11$
Answer:
$3x ^ 2 + x - 11$ will be a polynomial

3 0

3 years ago

List the sides from shortest to longest

LUCKY_DIMON [66]

Answer:

L to K

K to J

Step-by-step explanation:

the length between L and K is shorter when compared the side K to J

hope it helps :)

5 0

3 years ago

Read 2 more answers

A triangle has two sides of length 19 and 15. What is the largest possible whole-number length for the third side?

tensa zangetsu [6.8K]

Answer: 33

To maximize the length of the third side, which I'll call x, it needs to be the longest side.

So by the triangle inequality theorem, 19+15>x, meaning the maximum whole number value of x is 33.

8 0

1 year ago