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Cerrena [4.2K]
2 years ago
7

Cho ma trận 4 1 21 0 13 2 1A= −−−−Tính 25AI−Câu 2(3điểm)Tìm ma trận nghịch đảo của ma trận sau−=123020112ACâ

u 3(3điểm)Giải hệ phương trình=+−−=+−=−+02347213321321321xxxxxxxxxCâu 4(1điểm)Giải và biện luận hệ phương trìnhsau theo m1 2 31 2 31 2 3222 2 6 62 3 4 5xx xxxxxxxm− + =− + − = −− + = +HẾT.
Mathematics
1 answer:
andriy [413]2 years ago
4 0

Hi can you translate into English then I would be happy to help

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Which function represents exponential decay?
horrorfan [7]

the answer to your question would be D

7 0
3 years ago
Without graphing, determine the range of the function f(x) = 4|x+6|-5 over<br> the interval [-10,5].
spin [16.1K]

Answer:

[-5,39]

Step-by-step explanation:

The vertex is at (-6,-5)

The interval is from -10 to 5 (inclusive of both endpoints...

Absolute function is open up because 4 is positive

I will plug in both endpoints now:

f(-10)=4|-10+6|-5                               f(5)=4|5+6|-5

f(-10)=4(4)-5                                      f(5)=4(11)-5

f(-10)=11                                             f(5)=39

So the highest reached by f(5) which is 39 so our range will go up to 39 (inclusive)

11 is not the lowest reached, -5 is because our vertex was included within the domain

So the range is [-5,39]

3 0
3 years ago
Find the difference. 8x-(12x^2+5x)=
valentinak56 [21]

Answer:

− 24 x − 12 h +3

Step-by-step explanation:

8x-(12x^2+5x)

<em>difference</em>

<u>f ( x + h )   and   f ( x ) , and plug these values into the difference quotient formula</u>

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4 0
3 years ago
Help please math ..??
astraxan [27]

Answer:

(3, - 1)

Step-by-step explanation:

5x - 4y = -11

2x + 3y = -9

Multiply the top equation by 2 and the bottom equation by - 5 to cancel out the x's.

10x - 8y = - 22

- 10x - 15y = 45

Cancel out x's.

-8y = - 22

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Add like terms.

- 23y = 23

Can't have a negative variable to flip them.

-23 = 23y

Divide.

y = - 1

Input y into one of the equations and solve for x.

2x + 3(-1) = -9

Simplify.

2x -3 = -9

Cancel out -3 by adding 3.

2x = -6

Divide.

x - -3

8 0
3 years ago
Giving brainly answer quick noob
olga2289 [7]

Answer:

Ok

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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