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VashaNatasha [74]
2 years ago
15

Evaluate the determinant

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0
D. negative 67 because laplace’s expansion
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Please help I don’t understand
KIM [24]

Answer:

The equivalent ratios are:

16:10

8:5

48:30

Step-by-step explanation:

It is given that the ratios are equivalent ratios. So all the ratios will simplify to the same ratio. We can use this to find the ratios.

given ratio is:

16:10

which simplifies to

8:5

We can observe that the second ratio will be same 8:5

Now,

\frac{8}{5} = \frac{x}{30}\\x = \frac{8}{5} * 30\\x = 48

Hence,

The equivalent ratios are:

16:10

8:5

48:30

8 0
2 years ago
What is the following product
Sloan [31]

Answer:

option D

60√3 - 21√6

...........

4 0
3 years ago
Henry bought a laptop for 4500 the cost of the laptop deprecate by 6% every year.If he decided to sell the laptop after 4 years
damaskus [11]

Answer:

give fufcy UC fugu stuff c

Step-by-step explanation:

zp staff book

5 0
3 years ago
In the isosceles △ABC m∠ACB=120° and AD is an altitude to leg BC . What is the distance from D to base AB , if CD=4cm?
7nadin3 [17]

Correct answer is: distance from D to AB is 6cm

Solution:-

Let us assume E is the altitude drawn from D to AB.

Given that m∠ACB=120° and ABC is isosceles which means

m∠ABC=m∠BAC = \frac{180-120}{2}=30

And AC= BC

Let AC=BC=x

Then from ΔACD , cos(∠ACD) = \frac{DC}{AC} =\frac{4}{x}

Since DCB is a straight line m∠ACD+m∠ACB =180

                                              m∠ACD = 180-m∠ACB = 60

Hence cos(60)=\frac{4}{x}

          x=\frac{4}{cos60}= 8

Now let us consider ΔBDE, sin(∠DBE) = \frac{DE}{DB} =\frac{DE}{DA+AB} = \frac{DE}{4+8}

DE = 12sin(30) = 6cm

7 0
3 years ago
The slope of the line below is 5. which of the following is the point-slope form of the lne?
irga5000 [103]
Point-slope form of a line is

y=mx+b

where m is the slope and b is your y intercept

So, if the slope is 5, then that is your m value

y=5x+b

To find the value of b, that is just the value of where the line passes the y axis
3 0
3 years ago
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