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3 years ago

Please help me find the area of this triangle.

Mathematics

2 answers:

WARRIOR [948]3 years ago

5 0

I think it is 12 yds^2. Area of a triangle is base*height / 2, which would be (8 * 3) / 2.

ollegr [7]3 years ago

5 0

You could just search up the equation and plug the number in specific areas in.

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R + 8 > 21 what is the answer

topjm [15]

Answer:

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6 0

3 years ago

Please help explanation if possible

stira [4]

Answer:

$y = 2x + 7$

Step-by-step explanation:

Use Point Slope Form since we are given the slope and coordinates. Why is the slope 2x?

 In Depth: Parallel lines never touch so they are Lines that have same slope but different y intercept. An example is a square. A square has four parallel sides. The upper and lower sides will never touch because they are the same slope and they both have a finite distance vertically between them.

Back to the question, let use the Point Slope Form,

$y - y_{1} = m(x - x_{1})$

Where y1 is the y coordinate of the given point, m is the slope and x is the x coordinates of the given points.

Substitute

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

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

Simplify

$y + 1 = 2x + 8$

$y = 2x + 7$

4 0

3 years ago

A line passes through the points (6,-6) and (9,-5). What is it’s equation in point slope form?

BARSIC [14]

Answer:

$y=\frac{1}{3}x-8$

Step-by-step explanation:

Slope-intercept form of an equation is written as $y=mx+b$ , where $m$ is the slope and $b$ is the y-intercept.

The slope of a line that passes through the points $(x_1,\: y_1)$ and $(x_2, \: y_2)$ is $m=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1}$ . Using the coordinates $(6,-6)$ and $(9,-5)$ as given in the problem, we have slope of this line to be:

$m=\frac{-5-(-6)}{9-6}=\frac{1}{3}$ .

Now using this slope we've found and any point the line passes through, we can find the y-intercept of this equation:

$-6=\frac{1}{3}(6)+b, \\ b=-8$

Therefore, the equation of this line in slope-intercept form is $\fbox{$y=\frac{1}{3}x-8$}$ .

3 0

3 years ago

How many fourths are in 5 1/2?

Inessa05 [86]

There are 22 fourths in 5 1/2

5 0

4 years ago

A rectangular painting has a diagonal measure of 25 inches and an area of 168 square inches. Use the formula for the area of a r

Sphinxa [80]

H^2=x^2+y^2 and xy=168 so y=168/x

625=x^2+28224/x^2

625=(x^4+28224)/x^2

x^4-625x^2+28224=0

I'll use the quadratic because this is a big number :P

x^2=(625±√(277729))/2

x^2=(625±527)/2

x^2=49

x=7

168/7=24

So the dimensions of the painting is 7 inches by 24 inches.

8 0

3 years ago