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3 years ago

Solve for y: y -6 =1/2( x +6)

Mathematics

2 answers:

mrs_skeptik [129]3 years ago

5 0

Answer:

y=1/2x+9

Step-by-step explanation:

y-6=1/2(x+6)

y-6 = 1/2x+3

y=1/2+3+6

y=1/2x+9

liraira [26]3 years ago

4 0

Answer:

socratic is a good app for math answers

Step-by-step explanation:

or faster help then this

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How many numbers from 300 to 899 contain atleast one four

svetlana [45]

The awnser is about 50

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3 years ago

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The edges of a cube are 5 centimeters each and the diagonal of a face is approximately 7 centimeters. What is the approximate ar

34kurt

Answer:

C. 35sqcm

Step-by-step explanation:

area of rectangle = length × breadth

5×7=35

5 0

2 years ago

PLEASE HELP ASAP

ladessa [460]

1)An equation in the slope-intercept form is written as

y=mx+by=mx+b

Where m is the slope of the line and b is the y-intercept. You can use this equation to write an equation if you know the slope and the y-intercept.

Example

Find the equation of the line

Choose two points that are on the line

Calculate the slope between the two points

m=y2−y1x2−x1=(−1)−33−(−3)=−46=−23m=y2−y1x2−x1=(−1)−33−(−3)=−46=−23

We can find the b-value, the y-intercept, by looking at the graph

b = 1

We've got a value for m and a value for b. This gives us the linear function

y=−23x+1y=−23x+1

In many cases the value of b is not as easily read. In those cases, or if you're uncertain whether the line actually crosses the y-axis in this particular point you can calculate b by solving the equation for b and then substituting x and y with one of your two points.

We can use the example above to illustrate this. We've got the two points (-3, 3) and (3, -1). From these two points we calculated the slope

m=−23m=−23

This gives us the equation

y=−23x+by=−23x+b

From this we can solve the equation for b

b=y+23xb=y+23x

And if we put in the values from our first point (-3, 3) we get

b=3+23⋅(−3)=3+(−2)=1b=3+23⋅(−3)=3+(−2)=1

If we put in this value for b in the equation we get

y=−23x+1y=−23x+1

which is the same equation as we got when we read the y-intercept from the graph.

To summarize how to write a linear equation using the slope-interception form you

Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

Once you've got both m and b you can just put them in the equation at their respective position.

https://www.mathplanet.com/education/algebra-1/formulating-linear-equations/writing-linear-equations.....

2)https://www.cymath.com/answer?q=6x%20%2B%202y%20%3E%204

3)https://www.cymath.com/answer?q=9x%20%E2%80%93%203y%20%3D%2012

4 0

3 years ago

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How do you do inequalities

sineoko [7]

Answer:

See description below.

Step-by-step explanation:

An inequality is an equation with more than one solution and they use <, >, $\leq$ or $\geq$ . There are a number of ways to work with inequalities.

Solving: To solve inequalities in one variable, treat it just like an equation. Solve using inverse operations. If you divide or multiply by a -1 then be sure to flip the sign. For example, if you have > then it becomes <.

Graphing on a number line: To graph inequalities in one variable, use a number line. Plot a point on the number line with an open circle then an arrow pointing toward the solution set. If you have an equal to, you would shade in the open circle.

Solving: To solve inequalities in two variables, you need a system meaning more than one. You solve it like a system of equations by graphing.

Graphing: To graph inequalities with two variables, graph each in y=mx+b form using the y-intercept and slope. Connect the points with a dashed line unless equal to. Equal to inequalities have a solid line. To show the solution set, shade the side of the inequality which (x,y) points make it true. To find this, test a point by substituting into the inequalities.

5 0

3 years ago

Round off to the nearest 1000 544 4321 10675

blsea [12.9K]

544 = 1000

4321 = 4000

10675 = 11000

I hope I helped! :)

7 0

3 years ago

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