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2 years ago

What is the definition of the determinant

Mathematics

2 answers:

almond37 [142]2 years ago

8 0

Quantity obtained by the addition of products of the elements of a square matric

weeeeeb [17]2 years ago

4 0

a quantity obtained by the addition of products of the elements of a square matrix according to a given rule.

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- 5x + 2y = 9<br> y = 7x

Lorico [155]

Answer:

Explanation:

- 5x + 2y = 9

y = 7x

<u>Insert 7x For 'y'</u>

- 5x + 2(7x) = 9

<u>Remove Parenthesis</u>

-5x + 2 · 7x = 9

<u>Multiply: 2 · 7 = 14</u>

-5x + 14x = 9

<u>Add: -5x + 14x = 9x</u>

9x = 9

<u>Divide Both Sides By 9</u>

9x ÷ 9 = 9 ÷ 9

8 0

3 years ago

Write 2.3181818... as a mixed number

JulsSmile [24]

Let x= 2.3181818...

then

10x=23.181818... and

1,000x=2,318.1818...

1,000x-10x=2,318.1818...-23.181818...

990x = 2,318 - 23
990x = 2295

x=2295/990

dividing by 5 both numerator and denominator:

x= 459/198

now, x= 198 + 198+ 63

so $x= 2\frac{63}{198}$

Answer: $x= 2\frac{63}{198}$

7 0

2 years ago

762-332 using rounding or compatible numbers to estimate

Nina [5.8K]

Maybe 430 or 400 could be the answer to that problem

8 0

2 years ago

A Ferris wheel rotates 9π/8 radians prior to making a stop. The total height of the Ferris wheel is 246 ft. How far around did t

WARRIOR [948]

Answer:

The ferris wheel travelled 434.717 ft.

Step-by-step explanation:

Assuming that the ferris wheel is a perfect circle, then it's height is the same as the diameter of the circle, therefore it's radius is:

radius = height/2 = 246/2 = 123 ft

The distance travelled by the ferris wheel is the same as the length of the arc created by a angle of (9pi/8). The length of an arc is given by:

length = r*(angle in radians)

length = 123*(9pi/8)

length = 434.717 ft

The ferris wheel travelled 434.717 ft.

5 0

2 years ago

WILL GIVE BRAINLIEST

Trava [24]

Answer:

1.5sin4x

Step-by-step explanation:

I just answered this question and got it right.

5 0

2 years ago