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hichkok12 [17]
3 years ago
13

How many Solutions are there for -6(3x+2)=2x-5-20x-7

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

First of all, expand the left hand side:

-18x-12 = 2x-5-20x-7

Sum like terms on the right hand side:

-18x-12 = -18x-12

As you can see, the equation turned to be an identity: it doesn't matter which value for x you are choosing: you're evaluating the same expression in both sides, so they will always be the same.

In other words, you're asking: which value for x should I choose so that -18x-12 and -18x-12 evaluate to the same number? Well, obvisouly any value for x will do.

So, there are infinitely many solutions to this equation, namely ever real number is a solution of this equation.

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Negative seven plus four
gulaghasi [49]

Answer:

-3

Step-by-step explanation:

it like 7-4 but then you change the sign to negative since you chance it earlier.

8 0
3 years ago
this value of y is a of​ t(y). because is for all values of​ y, it follows that the value of y found in the previous step corres
Radda [10]

For f(t) = 3 sin(t), the minimum is -3, the maximum is 3.

For additional information:

The  period T of the function y=3sin(4t) is;

The period of y = 3 sin (4t) is (2pi) / 4 = pi / 2

The sine function with amplitude A = 0.75 and period T = 10, is

y = 0.75 sin( (2pi / 10) x )

= 0.75 sin( (pi/5) t)

y(4) = 0.75 sin( (pi/5) (4) )

= 0.75 sin ( (4/5) pi ) = .4408

Drawing the sine and cosine function on the same plot shows

that they are identical except for a horizontal shift.

The cosine

function leads the sine function by a shift of (2pi/4) = pi/2.

For the last part, y(4) = 0.75 cos( (2pi/10) (4) ) = - 0.6067

To learn more

visit : brainly.com/question/4842623

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5 0
2 years ago
How do you solve this with distributive property 5(2x + 10)
DaniilM [7]
5 times 2x + 5 times 10
10x+50
8 0
2 years ago
Read 2 more answers
Given a line with equation 3x +7y = 21. write an equation in point-slope form of the line parallel to the given line through the
guapka [62]

Answer:

The equation of the line is y = -3/7x - 23/7

Step-by-step explanation:

To start we need to find the slope of the original line. We can do this by solving the equation for y.

3x + 7y = 21

7y = -3x + 21

y = -3/7x + 3

Now we know the slope to be -3/7. Since parallel lines have same slopes, we know the new line also will have a -3/7 slope. We can now use that along with the given point in point-slope form to find the equation.

y - y1 = m(x - x1)

y + 5 = -3/7(x - 4)

y + 5 = -3/7x + 12/7

y = -3/7x - 23/7

8 0
2 years ago
The experimental probability of spinning a number less than 3 is...?
PSYCHO15rus [73]

Answer:

28%

Step-by-step explanation:

8 + 6 = 14

the total of the numbers spun is 50

so as a percentage it would be 28%

7 0
2 years ago
Read 2 more answers
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