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Nataliya [291]
3 years ago
9

Help please, if you get it right then you get extra points.

Mathematics
1 answer:
stich3 [128]3 years ago
5 0
I know i have terrible handwriting so... let me know if you need me yo explain

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Algebra Question ( Matrices and Determinants ) 20 point
grandymaker [24]
To get the determinant of a 2*2 matrix, you subtract the product of the leading diagonal from the secondary diagonal.


In the matrix above, the product of the secondary diagonal is (4×5) = 20.
The product of the leading diagonal is (-2×3) = -6.

∴ determinant(Δ) = (-6) - 20 = -26
7 0
4 years ago
A consignment of steel weighing 5 tonnes
Yuri [45]

Answer:

This is when solid particles stick to one another, and while this is an undesirable feature in many powder and particle processing operations, it is essential for the successful sintering of iron ore fines, coke and fluxes into a suitable blast furnace feed.

Step-by-step explanation:

3 0
3 years ago
A new car is purchased for 20000 dollars. The value of the car depreciates at 12. 5% per year. What will the value of the car be
Georgia [21]

To solve the problem we need to know about depreciation.

<h2>Formula of Depreciation</h2>

The formula of depreciation is given as,

A = P(1-r)^t

where,

A is the value of an object after t years of time,

P is the value of the object at the beginning, and

r is the rate of depreciation.

The value of the car after 11 years is $4,603.81.

<h2>Explanation</h2>

Given to us

  • Cost of Car at the beginning, p = $20,000
  • Rate of depreciation, r = 12.5%
  • Time, t = 11 years

<h3>Value of the car after 11 years</h3>

Substituting the values in the formula of depreciation,

A = P(1-r)^t

Value of the car after 11 years = P(1-r)^n

                                                 = \$20,000(1-0.125)^{11}\\\\&#10;= \$20,000\times 0.23\\\\&#10;= \$4,603.822 \approx \$4,603.81

Hence, the value of the car after 11 years is $4,603.81.

Learn more about Depreciation:

brainly.com/question/3023490

8 0
3 years ago
Evaluate 7^2 + (4x5) - 2^3
Phoenix [80]

So it would be 49+(20)+8

= 77

7 0
4 years ago
Michael purchased 25 audio files in January. in February he purchased 40 audio files. find the percentage increase.
Andrews [41]
The percent that is increased is 80 percent.
7 0
3 years ago
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