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ExtremeBDS [4]
3 years ago
8

Solve the following system of equations using the elimination method. 8x – 5y = 5 –8x – 6y = 6

Mathematics
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

x = 0, y = -1

Step-by-step explanation:

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You are skiing down a mountain with a vertical height of 800 feet. The distance from the top of the mountain to the base is 1600
adoni [48]

Answer:

θ  = 30^{0}

Step-by-step explanation:

Since the vertical height of the mountain is 800 feet, and the distance from the top to its base is 1600 feet. Let the angle of elevation be represented by θ, applying the required trigonometric function;

Sin θ = \frac{opposite}{hypotenuse}

Sin θ = \frac{800}{1600}

        = 0.5

θ = Sin^{-1} 0.5

θ  = 30^{0}

Thus, the angle of elevation from the base to the top of the mountain is 30^{0}.

7 0
3 years ago
Espano
nikitadnepr [17]

Answer:

The time at which the two trains will meet is 1 hour and 24 minutes

Step-by-step explanation:

The distances between the two trains = 196 miles

The direction of the two trains = Towards each other

The speed of one of the trains = 80 miles per hour

The speed of the other train = 60 miles per hour

Let 't' represent the time at which the two trains meet, we have;

80·t + 60·t = 196

∴ 140·t = 196

t = 196/140 = 7/5

The time at which the two trains will meet, t = 7/5 hours = 1.4 hours = 1 hour, 24 minutes.

3 0
3 years ago
Four students wrote sequences during math class.
N76 [4]
Doug because his sequence follows a rule of multiplying by -1/2 Hope I got it right for your sake.
6 0
3 years ago
Read 2 more answers
Which of the following Functions is NOT Linear? A:f(x)=x+0.5 B:F(x)=-x+0.5 C: F(x)=x^2-0.5 D: f(x)=0.5x
Citrus2011 [14]

Answer:

C: F(x)=x^2-0.5

Step-by-step explanation:

When the x is squared it's a parabola. A linear graph is shaped like a straight line, while a parabola is curved inward. I have included a graph of what that function would look like (tap/click on it to see the full graph.)

6 0
3 years ago
Read 2 more answers
A wall in Marcus's bedroom is 825825 feet high and 18131813 feet long. If he paints 1212 of the wall blue, how many square feet
Alchen [17]
If you would like to know how many square feet of the wall will be blue, you can calculate this using the following steps:

8 2/5 feet high * 16 2/3 feet long = 8 2/5 * 16 2/3 = 42/5 * 50/3 = 140 square feet

1/2 * 140 = 140/2 = 70 square feet

<span>The correct result would be 70 square feet.</span>
5 0
3 years ago
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