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77julia77 [94]
3 years ago
6

PLZ HELP 20 PTSMatch each value to the correct entry in matrix AB.

Mathematics
1 answer:
matrenka [14]3 years ago
7 0

Answer:

Step-by-step explanation:

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Pls solve I need this today
frez [133]

Answer:

25

Step-by-step explanation:

8 0
2 years ago
How do you do these questions?
Lady bird [3.3K]

Answer:

(e) csc x − cot x − ln(1 + cos x) + C

(c) 0

Step-by-step explanation:

(e) ∫ (1 + sin x) / (1 + cos x) dx

Split the integral.

∫ 1 / (1 + cos x) dx + ∫ sin x / (1 + cos x) dx

Multiply top and bottom of first integral by the conjugate, 1 − cos x.

∫ (1 − cos x) / (1 − cos²x) dx + ∫ sin x / (1 + cos x) dx

Pythagorean identity.

∫ (1 − cos x) / (sin²x) dx + ∫ sin x / (1 + cos x) dx

Divide.

∫ (csc²x − cot x csc x) dx + ∫ sin x / (1 + cos x) dx

Integrate.

csc x − cot x − ln(1 + cos x) + C

(c) ∫₋₇⁷ erf(x) dx

= ∫₋₇⁰ erf(x) dx + ∫₀⁷ erf(x) dx

The error function is odd (erf(-x) = -erf(x)), so:

= -∫₀⁷ erf(x) dx + ∫₀⁷ erf(x) dx

= 0

7 0
3 years ago
Solve <br> X^2+5x+6=0<br><br> Please help
gogolik [260]

Answer: x= 3,2

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

5 0
3 years ago
A man walks 10 miles an ex hours how far does he walk in one hour which expression represents
kenny6666 [7]

Answer:

1 hour = 10/x

Step-by-step explanation:

Example: the man walks 10 miles in 5 hours. How many in 1 hour: 10/5= 2 miles

7 0
3 years ago
Read 2 more answers
(20 x 40) x 14 = ?
fredd [130]

To solve this problem, we must use the order of operations outlined by PEMDAS, which tells us that we should simplify or compute parentheses first, then exponents, multiplication, division, addition, and finally subtraction.

Using this method, we have to perform the multiplication inside the parentheses first.

(20 * 40) * 14

800 * 14

Finally, we must perform the final operation to simplify this expression, which is multiplication.

800 * 14 = 11200

Therefore, your final answer is 11200.

Hope this helps!

3 0
3 years ago
Read 2 more answers
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