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bulgar [2K]
3 years ago
5

5. Write the Equation (4.-1) and (2,3)

Mathematics
1 answer:
romanna [79]3 years ago
4 0
Use the equation m=y2-y1/x2-x1 to find the slope
m=3-(-1)/2-4
m=4/-2
m=-2
Plug in the coordinates of one of the ordered pairs into y=mx+b. I’ll use (2,3)
3=-2(2)+b
3=-4+b
1=b
Equation: y=-2x+1
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Anna is serving chocolate dipped strawberries at her party. She buys 3 ounces of chocolate. If
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Answer:

D. 24 strawberries

Step-by-step explanation:


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3 years ago
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A garbage truck and a dump truck each drive along a straight road between two points. Using the points on a map that the city cr
Dmitriy789 [7]
We first find the lines of the motion of each truck, then calculate its intercept.
Garbage truck:
m = (12 - 4) / (5 - 3)
m = 4
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Dump truck:
m = (33 + 3) / (-4 - 5)
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Adding the two equations to solve them, we get:
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7 0
3 years ago
Please help me please
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Step-by-step explanation:

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A plane has an airspeed of 134 km divided by h. It is flying on a bearing of 78 degrees while there is a 21 km divided by h wind
ANEK [815]

Answer:

Ground speed = 131.25 km/h

Bearing = 92.68º

Step-by-step explanation:

If we imagine a triangle to depict the question with one side 134 km/h at an angle of 78º to the right of vertical (the plane's speed vector).

At the end, we have a line 21 km/h at an angle of 180 (from north), a vertical down from the end of the plane's vector. This vertex is angle B

This makes a triangle with the interior angle B of 78º.

The 3rd side is the ground speed which we can find using the Cosine rule:

b² = a² + c² - 2•a•c•cos(78)

b² = 134² + 21² - 2•134•21•cos(78)

b² = 17226.873

b = 131.25 km/h

The true course bearing" is the ground track. Thus;

Using the Sine rule to find angle A, we have;

(sin(A))/34= sin(78)/b

Thus,

sin(A) = (34 x sin(78))/131.25

sin(A) = 0.2534

A = sin^(-1)0.2534

A = 14.68º

Ground track = A + 78 = 14.68 + 78 = 92.68º

8 0
4 years ago
Are these triangles similar
Archy [21]
These trianges are similar because they are both right triangles.
8 0
3 years ago
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