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Semmy [17]
3 years ago
5

Consider the function f(x)=10x^2+20x-11

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer: Vertex = (-1, -21) y-intercept = (0,-11)

Step-by-step explanation:

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At a gas station, it takes 14 seconds to pump 2 gallons of gas. if the amount of gasoline pumped varies directly with time, how
EleoNora [17]

Answer:

See below:

Step-by-step explanation:

If we do this, we know that 2 gallons takes 14 seconds. (2:14)

Based on that data, we can know that 1 gallon takes 7 seconds. (1:7)

-> 2/14 = 1/7

Now we can multiply by 12 to get 12 gallons on one side.

What we do on one side has to happen to the other side.

So, 12 gallons * 1 gallons = 12 gallons and 12 gallons * 7 gallons = 84 gallons.

So the final answer is 85 gallons,

7 0
3 years ago
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Need help with this Question
vazorg [7]

Answer:

Step-by-step explanation:

W∩ X is asking for the intersection of sets W and X, or simply, which numbers can be found in both sets.

The numbers shared between the two sets are 3, 4, 5.

Next, we need to union this result with the set Y, or simply, combine the numbers in both sets together.

This would result in 2, 3, 4, 5

5 0
3 years ago
Joey sells cars at Orange City Ford. He earns $350 a week plus $200 per car he sells. If he earned $1550 last week, how many car
Vladimir [108]

Answer:

Joey sold 6 cars

Step-by-step explanation:

Joey earns $350 per week + $200 per car he sells

The number of cars that he sold last week is unknown, so represent it with a variable, x.

Write an equation

$350 + $200x = $1,550

Subtract $350 from both sides of this equation

$200x = $1200

Divide both sides of the equation by 200

x = 6

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Hope this helps :)

7 0
3 years ago
A bus travels through the city and stops every mile. The first stop on the route is the 8th Avenue Coffee Shop, which is located
ycow [4]
<span>The student apparently added numbers without taking into account direction. They seem to have added 15 and 25 and divided by 2 to get the horizontal component of the middle stop when they should have added 15 and -25 and divided by 2. A similar mistake was made on determining the vertical component. The middle stop should have been calculated as 5 blocks west and 7 blocks south of the central station. So your answer is C.</span>
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3 years ago
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I need help, please!!! I got the answer but I need to show work and that I got that answer.
Rainbow [258]

Step-by-step explanation:

Area of each paralellogram = b * h = 12 * 20 = 240 square inches

Area of 9 paralellograms = 9 * 240 = 2160 square inches

5 0
3 years ago
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