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zubka84 [21]
3 years ago
10

5x+4y=-14 3x+6y=6 solve the system below by the elimation​

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

y = 4

x = -6

Step-by-step explanation:

multiply first equation by 3

3×(5x+4y)= -14 ➡ 15x + 12y = -42

multiply second equation by -5

-5×(3x+6y)= 6➡ -15x -30y = -30

now add both equations up

15x +12y -15x -30y = -42 -30 (15x will eliminate -15x)

-18y = -72

y = 4 use this to find value of x

3x + 6×4 = 6 ➡ ex = -18 ➡ x = -6

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olga2289 [7]

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Step-by-step explanation:

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2 years ago
In what direction and by how many units is the graph of f(x) = −7 sin(3x + π) − 2 vertically and horizontally shifted?
aev [14]

Answer:

Option 1. Down 2, right pi over 3.

Step-by-step explanation:

In a given function f(x) = -7 sin(3x+π)-2 we have to find the shift horizontally and vertically.

As we know  in a sine equation represented as y = a sin(bx+c) +d

Amplitude of the wave = a

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Vertical shift = -2 down with 2 ( since it's with negative sign)

Therefore Option 1 is the correct one.

8 0
3 years ago
Wilson bought fruit that weighs pounds. How many ounces does the fruit weigh? Show your work
mrs_skeptik [129]
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3 years ago
Evaluate the function f (x)= x squared -4x+1 at the given values of the independent variable and simplify.
Ivan
<h3>Given</h3>

... f(x) = x² -4x +1

<h3>Find</h3>

... a) f(-8)

... b) f(x+9)

... c) f(-x)

<h3>Solution</h3>

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b) f(x+9) = (x+9)² -4(x+9) +1

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c) f(-x) = (-x)² -4(-x) +1

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Marta_Voda [28]
Let the integers be x-2, x, x+2.

Given,

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Hence, the integers are 21, 23 and 25.
6 0
2 years ago
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