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3 years ago

Whats the slope of (-1, 8) and (-1, -4)

Mathematics

2 answers:

Gnesinka [82]3 years ago

5 0

The slope is undefined

Vesnalui [34]3 years ago

4 0

Answer:

-12/0

Step-by-step explanation:

(-1, 8)= (x1, y1)

(-1, -4)= (x2, y2)

Now,

Slope(m) = y2- y1 / x2- x1

= -4- 8 / -1 - (-1)

= -12 / 0 [Answer]

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Tomika uses 619 inches of wire to make a necklace and 313 inches of wire to make a bracelet.

Lisa [10]

Answer:

2,796.

Step-by-step explanation:

First, I added 619 + 313, which is 932. Since she is able to use more, I multiplied it by two to get me 1,864. If I tried multiplying it by three, I would get 2,796, which is a perfect amount.

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3 years ago

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Citrus2011 [14]

Answer:

170 km/h

Step-by-step explanation:

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3 years ago

A ramp is used to load a snowmobile onto the back of a pickup truck. The truck bed is 1.3m above the ground. For safety, the ang

kiruha [24]

Answer:

2.02 m

or 2 m 2 cm

Step-by-step explanation:

Imagine a triangle containing the 40° angle and that this angle is at the left. Then the height of the truck bed is 1.3 m and the "shortest possible length of the ramp" is the hypotenuse of this triangle. We need to find the length of this ramp, that is, the length of the hypotenuse.

The sine function relates this 40° angle and the 1.3 m height of the truck bed:

sin 40° = opp / hyp = 1.3 m / hyp

which can be solved for 'hyp' as follows:

1.3 m

hyp = ----------------- = (1.3 m) / 0.6428)

sin 40°

1.3 m

Thus, the length of the ramp must be less than -------------- or 2.02 m

0.6428

where this last result is to the nearest cm.

If the ramp is shorter the angle of the ramp will be smaller and the ramp angle considered safer.

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3 years ago

Sylvie finds the solution to the system of equations by graphing.

nikdorinn [45]

Answer:

Step-by-step explanation:

From the graph, it is clear that both lines intersect

at x=0 and y=2/3 or (0.667)

Therefore, the solution is: (x, y) = (0, 2/3) or (0, 0.667)

Step-by-step explanation:

Given the system of equations

y=2/3x+1 and y = -2/3 x-1

GRAH AND POINT OF INTERSECTION (SOLUTION)

The solution graph is attached below.

From the attached solution graph,

The red line is representing the equation y=2/3x+1

The blue line is representing the equation y = -2/3 x-1

From the graph, it is clear that both lines intersect

at x=0 and y=2/3 or (0.667)

Thus, the point of intersection is (x, y) = (0, 2/3) or (0, 0.667)

Therefore, the solution is: (x, y) = (0, 2/3) or (0, 0.667)

8 0

2 years ago

Answer in a logical, well-written paragraph

Bas_tet [7]

I really don't understand what you are asking your words are not making sense

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3 years ago