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Svetlanka [38]
3 years ago
5

5a + 5b + 5c = −20 4a + 3b + 3c = −6 −4a + 3b + 3c = 9

Mathematics
1 answer:
PolarNik [594]3 years ago
7 0

Answer:

Step-by-step explanation:

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Multiply. Write the result in scientific notation.1.4 • 10^1)(8 • 10^4)
notsponge [240]

Answer:

1,12×10^6

Step-by-step explanation:

7 0
3 years ago
The perimeter of a playing field for a certain sport is 334ft. The field is a rectangle, and the length is 47 ft longer than the
babunello [35]

Answer:

The dimensions of the rectangle = 60ft by 107ft

Where 60 ft = Width of the playing field

107ft = Length of the playing field

Step-by-step explanation:

A playing field is Rectangular is shape, hence,

The formula for Perimeter of a rectangle = 2(L + W)

P = 334 ft

L = 47 + W

W = W

Hence we input these values in the formula and we have:

334 = 2(47 + W + W)

334 = 2(47 + 2W)

334 = 94 + 4W

334 - 94 = 4W

240 = 4W

W = 240/4

W = 60

There fore, the width of this playing field = 60 ft

The length of this rectangle is calculated as:

47 + W

47 + 60

= 107 ft

The length of this playing field = 107ft

Therefore the dimensions of the rectangle = 60ft by 107ft

6 0
3 years ago
(x2y-3y2+5xy2)-(-x2y+3xy2-3y2)
Reil [10]
2x2y+8xy2-6y2 .........
8 0
3 years ago
The sum of five consecutive multiples of 4 is 20.Find the smallest integer.
Aloiza [94]

Answer:

The smallest integer is -4.

Step-by-step explanation:

Let the smallest integer be x.

Since the integers are all multiples of 4, they are

=> x, x+4, x+8, x+12 and x+16

=> x + x+4 + x+8 + x+12 + x+16 = 20

=> 5x + 40 = 20

Subtract 40 from both sides of the equation

5x +40 - 40 = 20 - 40

5x = -20

Divide both sides by the coefficient of x(which is 5)

\frac{5x}{5} = \frac{-20}{5}

x = -4

∴ the smallest integer is -4.

Hope this helps!!!

6 0
3 years ago
Im going to give 20 points for this question please answer.
bearhunter [10]
The answer is 204 square units
3 0
3 years ago
Read 2 more answers
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