Algebra question ( Matrices and Determinants ) 20 pints

Answers

Answer 1

Answer: The correct answer is option D
D. 597
The solution is as following
Determinant of K = 14 *(8*5+ --1*-2) - (-13)*(3*5- (-1)*(-10)) + 0 *( 3*-2 - 8*-10)
            = 14 * 38 + 13 * 5 + 0 * 74
            = 532 + 65
           = 597

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Line segment CD has a length of 3 units. It is translated 2 units to the right on a coordinate plane to obtain line segment C'D'. What is the length of C'D'?

Answers

It's still 3 units long. Being translated changes only the location, not the size

A new online music service has a collection of 1,500 songs. It expects to triple the number of songs each year for the next few years. Write an equation representing the relationship, where x is time in years, and y is the number of songs available. a) y = 1500 * 3^x b) y = 1500 + 3x c) y = 1500 * x³ d) y = 1500 / (3^x)

Answers

Answer:

a) y = 1500 * 3^x

Step-by-step explanation:

This equation indicates that the number of songs available, y, is equal to the initial number of songs (1500) multiplied by 3 raised to the power of the number of years, x. This reflects the expectation that the collection of songs will triple each year.

a company manufactures and sells novelty Mugs. the manufacturing cost consist of a fixed cost of R8000 and a variable cost of R15 rand per mug. the mugs are sold at R35 each. assume a linear profit function. determine the profit function

Answers

ok so

8000=cost
profit-8000
then
another cost is 15rand per mug
but profit of 35 rand
35-15=20
profit of 20rand per mug

profit=R20m-8000
where m=number of mugs sold
(R20 means 20 rand)

f(m)=R20m-8000

Need help with problem can you help 5x+3y=22 y=2x

Answers

if y = 2x, let's replace it on $5x+3y=22$

$5x+3*(2x)=22$

$5x+6x=22$

$11x=22$

$\boxed{\boxed{x=2}}$

Therefore

$y=2x$

$y=2*2$

$\boxed{\boxed{y=4}}$

5x+3y=22 y=2x
5x+3(2x)=22
5x+6x=22
11x=22
x=2

y=2(2)
y=4
x=2 y=4

Estimate:
482 is about what percent of 796?

Answers

Answer:60.55 percentage

Step-by-step explanation:

Is a square a cross section of a rectangular and triangular prism?

Answers

Answer:

No, a square is NOT the cross section of a rectangular and triangular prism.

Step-by-step explanation:

Prisms have a uniform cross-section and are named after their cross-section. Hence, the cross-section of a rectangular prism is a rectangle and the cross-section of a triangular prism is a triangle. The only prism with a square cross-section is a cube.

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