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sattari [20]
3 years ago
15

Which expression represents the determinant of A=[-6 -7 -4 -2 ]

Mathematics
2 answers:
Alona [7]3 years ago
7 0

Answer:

<u>C) det(A) = (–6)(–2) – (–4)(–7)</u>

Step-by-step explanation:

The determinant is ad-bc so when you plug in the numbers you get this answer. Also I got it right on Edge 2021 :)

hram777 [196]3 years ago
6 0
Is that the whole problem?
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What is the minimum value of F(x)= 10x^{2} -6x-3<br> 3/10 or -39/10
kolezko [41]

Answer: 3/10

Step-by-step explanation:

Take the derivative of 10x^2-6x-3 to get 20x-6. Set that equal to 0 to find the critical points of the function. The critical points is when the slope is either 0 or undefined.

Now do:

20x-6=0\\20x=6\\x=\frac{6}{20} = \frac{3}{10}

There are quite a few more steps to actually find the minimum, but for this example you can automatically assume its a minimum because it is the only critical point of the function. Ill show you these extra steps tho.

Plug in two numbers into the derivative. One that is less than 3/10 and one that is greater than 3/10. The numbers 0 and 1 are fine. When x = 0, the function is -6. When x = 1, the function is +14. A switch from negative to positive indicates a minimum value

6 0
3 years ago
ASAP<br> please help me with this
Stolb23 [73]
17.) (-2,0) & (5,0)
19.)(-8,0) & (-7,0)
20.)(-5,0) &(1.5,0)
21.)(-2,0) &(8,0)
I put all of them into Desmos the x’s or solutions are when the u shaped graphs pass through the x-axis
Please mark me the Brainiest
6 0
3 years ago
HELP PYTHAGORAS THEOREM
finlep [7]
So the hypotenuse is the ladder's length, which is 6m, and the base of the 'triangle' is 1.5m. Therefore, you do 6^2 - 1.5^2 = 36 - 2.25 = 33.75. Then, you just square root it to get 5.80948m. Hope this helps!
4 0
4 years ago
Read 2 more answers
Triangle ABC has a perimiter of 22cm AB=8cm BC=5cm by calculation deduce whether triangle ABC is a right-angled triangle
Svetllana [295]

Answer:

ABC is not a right triangle  

Step-by-step explanation:

The computation is shown below:

AC is

= Perimeter - (AB + BC)

= 22 - (8+5)

= 22 - 13

= 9

Now  

= 9^2 + 13^2

= 81 +169

= 250

And, the perimeter is  

= 22^2

= 484

Since the amount are not equivalent therefore ABC is not a right triangle  

6 0
3 years ago
Slope intercept form -2x+y=1
serious [3.7K]

Answer:

y = 2x + 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

- 2x + y = 1 ( add 2x to both sides )

y = 2x + 1 ← in slope- intercept form

4 0
3 years ago
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