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3 years ago

Help please ...................

Mathematics

2 answers:

ElenaW [278]3 years ago

7 0

94m squared . I just worked out the problem for you instead of doing my own homework lol

GarryVolchara [31]3 years ago

6 0

Answer:

$2( \frac{1}{2}5 \times 6.4) + 2( \frac{1}{2} 5 \times 12.4) \\ = 2(16) + 2(31) \\ = 32 + 62 \\ = 94m ^{2}$

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What is the equation in slope intercept form of the perpendicular bisector of the given line segment?

andreev551 [17]

Answer:

y = -4x - 6

Step-by-step explanation:

The equation of a line in point-slope form.

$y - y_1 = m(x - x_1)$

is the equation of the line containing point (x1, y1) and having slope, m.

The given point of the perpendicular bisector is (-1, -2), so in this case, x1 = -1, and y1 = -2.

We need the slope of the perpendicular bisector. First we find the slope of the segment. We start at point (-5, -3). We go up 1 unit and 4 units to the right, and we are at another point on the segment. Since slope = rise/run, the slope of the segment is 1/4. The slopes of perpendicular lines are negative reciprocals, so the slope of the perpendicular bisector is the negative reciprocal of 1/4, so for the perpendicular bisector, m = -4.

Now we use the equation above and our values.

$y - y_1 = m(x - x_1)$

$y - (-2) = -4(x - (-1))$

$y + 2 = -4(x + 1)$

$y + 2 = -4x - 4$

$y = -4x - 6$

6 0

3 years ago

What is the domain of the given function?

kari74 [83]

B would be the correct answer

5 0

3 years ago

A line passes through the point (6, -2) and has a slope of 4/3 Write an equation in point-slope form for this line.

kumpel [21]

Answer:

y = 4/3x - 10

Step-by-step explanation:

Slope: 4/3

y-intercept: -2 - (4/3)(6) = -2 - 8 = -10

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3 years ago

The total distance a ball rolls varies directly with the time in seconds. The ball rolls a total distance of 112 centimeters in

Komok [63]

Answer:

25 s

Step-by-step explanation:

25 times 28 is 700

8 0

3 years ago

I do not understand this! please help!

Bad White [126]

Answer:

So this is an algebra question, yes?

So an equation of a line follows this format: y=mx+b.

(m is your slope. b is the y-int)

In order to get to that equation, you use the formula: y-y¹=m(x-x¹).

(this is your point-slope formula)

If you are given two points, they want you to use this formula to find the slope:

y²-y¹ all divided by x²-x¹. (Fraction form).

so, label the points.

(0,6) 0 will be x¹. 6 will be y¹.

(3,0) 3 will be x².. 0 will be y².

(0-6) all over (3-0).

you get -6 over 3. You can simplify that to -2.

-2 is your slope.

so plug that into the second formula along with either one of the points given to you. I am going to choose (0,6) randomly.

y-6=-2(x-0)

Then you solve like a regular equation.

y-6=-2x. [-2×0 is 0 so dont include it]

y=-2x+6 [bring the -6 over by adding it]

There is your equation of the line that passes through both of those points.

Slope intercept form is the equation that has both the slope (-2) and the y intercept (6).

Point-slope form is the long formula we used to get the slope intercept form. It is called that because it shows a point on the graph (0,6) and the slope (-2).

Normally, they will ask you for the slope-intercept form.

Hope this helps.

7 0

3 years ago