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2 years ago

Find the determinant of the following matrix. [1 -2] [3 4]

Mathematics

1 answer:

Andrew [12]2 years ago

8 0

Answer:

Step-by-step explanation:

[1 -2]

[3 4]

We can obtain the determinant of the above matrix by doing the following:

Determinant =(1 × 4) – (3 × –2)

Determinant = 4 – – 6

Determinant = 4 + 6

Determinant = 10

Thus, the determinant of the above matrix is 10

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Solve the following exponential equations. 2(4^x )+ 4^(x+1 )= 342

Cloud [144]

Answer:

x ≈ 2.91644500708

Step-by-step explanation:

The equation can be simplified to ...

2(4^x) +4(4^x) = 342

6(4^x) = 342

4^x = 57

Taking logarithms, we get ...

x = log₄(57) = log(57)/log(4)

x ≈ 2.91644500708

5 0

2 years ago

Write the equation of the line that passes through the points (-7,-9) and (-3,-1)

zysi [14]

Answer:

2x + 5

Step-by-step explanation:

I am assuming you are talking about a linear function. If it is, then the equation would be:

2x + 5.

Hope this helps!

3 0

3 years ago

Read 2 more answers

What is the height of the building? 33.9 m 37.1 m 36.8 m 34.5 m

madreJ [45]

37.1
Hope this helps a lot!!

5 0

2 years ago

Write the explicit rule for the nth term. Then find a71. {O, -8, -16, -24 ...}

yulyashka [42]

Answer:

Step-by-step explanation:

{0, -8, -16, -24,...} here you add -8 each time so the rule is

$a_{1} = 0, a_{n} = a_{n-1} -8$

the 71 term is

$a_{71} = 0 + (71 - 1) * (-8) = 70 * (-8) = -560$

3 0

3 years ago

Solve for the value of n.

frosja888 [35]

Answer:

n= 27

Step-by-step explanation:

To solve first subtract the 90-degree angle:

180-90= 90

Then, convert into an equation:

3n+9= 90

Subtract 9 from both sides:

3n=81

Then divide by 3:

n= 27

Hope this helps!

6 0

2 years ago

Find the determinant of the following matrix. [1 -2] [3 4]​

Find the determinant of the following matrix. [1 -2] [3 4]