3 years ago

Simplify 27^n+3 -6×3^3n+3/3^n×9^n+2

Mathematics

1 answer:

MrMuchimi3 years ago

3 0

Answer:27^n+3–6*3^3n+3–n*9^n+2

Step-by-step explanation:

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5x + 7y = 17 x + 4y = 19

REY [17]

<h2>Answer:</h2>

5x + 7y = 17 ....(1)

x + 4y = 19 .....(2)

From equation 2

x + 4y = 19

x = 19 - 4y

Putting the value of x in Equation (1)

5(19 - 4y) + 7y = 17

95 - 20y + 7y = 17

- 20y + 7y = 17 - 95

-13y = -78

y = $\frac{78}{13}$

y = 6

Now, putting the value of y in equation (2)

x + 4y = 19

x + 4(6) = 19

x + 24 = 19

x = 19 - 24

x = -5

Therefore, the value of y is 6 and value of x is -5

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3 years ago

A coral reef grew 3000 millimeters taller. How much did it grow in meters?

ANTONII [103]

3 meters equals 3000 mm

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3 years ago

A ball rolls over the edge of a platform with only a horizontal velocity. The height of the platform is 1.6 m and the horizontal

Sever21 [200]

Answer:

35 m/s

Step-by-step explanation:

Let gravitational acceleration g = 9.8m/s2. We can calculate the amount of time for the ball to fall vertically a distance of 1.6 m

$1.6 = 9.8t^2/2$

$t^2 = 2*1.6/9.8 = 0.327$

$t = \sqrt{0.327} = 0.571s$

This is also the time it takes for the ball to fly horizontally, assume constant horizontal speed, we can calculate the speed it takes to travel across 20m in 0.571s

v = 20 / 0.571 = 35 m/s

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3 years ago

What is 17.043956 in decimal form

Novay_Z [31]

Answer:

17.043956

Step-by-step explanation:

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3 years ago

Read 2 more answers

2x-5y=17 ..solve for y

AlladinOne [14]

$2x-5y=17\ \ \ \ | subtract\ 2x\\\\
-5y=17-2x\ \ \ | divide\ by\ -5\\\\
y=\frac{-17+2x}{5}\\\\Solution\ is\ y=\frac{-17+2x}{5}.$

7 0

3 years ago