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Leokris [45]
3 years ago
14

How do I suppose to solve this question?

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0
Replace ∆ with a variable and solve.

Also it's no solution
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HOW MANY TRIANGLES ARE THERE? INCLDNG OVERLAPPING TRIANGLES. I NEED ANSWERS. PLEASE HELP. TYIA​
miss Akunina [59]

Answer:

The answer is 48.

Step-by-step explanation:

There are 4 triangles in each square. So multiply 4 by 12 because thats how many squares there are.

5 0
4 years ago
What is the equation of the line that passes through (-9,12) and is perpendicular to the line whose equation is y=1/3x 6?
tigry1 [53]
Y = 1/3x ? 6....slope here is 1/3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So our perpendicular line will have a slope of -3 (see how I flipped 1/3 and changed the sign)

y = mx + b
slope(m) = -3
(-9,12)...x = -9 and y = 12
now we sub and find b, the y int
12 = -3(-9) + b
12 = 27 + b
12 - 27 = b
-15 = b

so ur perpendicular equation is : y = -3x - 15
6 0
3 years ago
Consider the equation: -2x+5y=20
raketka [301]

Answer:

- 2x + 5y = 20 \\ 5y = 2x + 20 \\ y =  \frac{2}{5} x + 4 \\ slope =  \frac{2}{5}  \\ y - intercept = 4

8 0
3 years ago
Brass is an alloy of zinc and copper. if 30%of the content is zinc, find the weight of zinc and copper in 300 grams of brass​ if
Marina86 [1]

Answer:

Socratic app

Step-by-step explanation:

it will help you

8 0
3 years ago
What is the equation of the line in the graph
iren [92.7K]

Always, ALWAYS remeber this format: y = mx + b

In this equation, 'm' is the slope, and 'b' is the y-intercept

When you're trying to find a slope, remember that the equation is \frac{rise}{run}

When finding the rise and run, look at two points that are on the graph AND on the line as well. Essentially, make sure the points you're using are integers.

In this, case, the rise is -3, and the run is 2. This means that the slope is  \frac{-3}{2}

Now we have the first part of our equation:

y = - \frac{3}{2} + b

But wait! How do we find b?

Sometimes you have to input x in order to find it, but only when you're not supplied with a graph. In this case, all you have to do is look!

The point of the line that is on the y-axis is called the y-intercept.

In this graph, the y-intercept is -1

Now we have our complete equation!

y = - \frac{3}{2} - 1

Good luck!

3 0
3 years ago
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