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yarga [219]
3 years ago
14

Use elimination method to solve 3x+y=-14 and -2x-y=9

Mathematics
1 answer:
TiliK225 [7]3 years ago
7 0
I hope this helps you



3x+y-2x-y= -14+9


x= -5


-2. (-5) -y=9


10-y=9

y=1
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Find the value of f(3) given f(x) = − 5x + 2​
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Step-by-step explanation:

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-5(3)+2

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Mark dropped an object from a bridge 400 feet above the ground level with an initial velocity of 0. He knows that the gravitatio
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Answer:

The first listed equation is the correct equation to solve

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Step-by-step explanation:

Let me mention first that there is an error in the statement that the gravitational pull of the Earth is 16 ft/s^2. It is in fact 32 ft/s^2, and the actual equation uses half of the acceleration multiplied by the square of the variable time, so it gives as final expression :

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0=-16\,t^2+ 0 \,t +400\\16\,t^2+0\,t -400=0

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So we adopt the positive answer (positive time) since the negative value has no physical meaning for this problem.

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6 0
3 years ago
Jackson is playing a game of chance where he must randomly draw a marble out of a jar. He calculates the probability of drawing
Sindrei [870]

Using complementary events, considering a \frac{1}{4} probability of drawing a red marble, the probability of not drawing a red marble is of \frac{3}{4}.

<h3>What are complementary events?</h3>

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More can be learned about complementary events at brainly.com/question/9752956

8 0
2 years ago
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melamori03 [73]
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$18.14 is your answer
5 0
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Answer:

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