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guapka [62]
2 years ago
10

Which quadratic function shows a y-intercept of 4 and a maximum value of 5

Mathematics
1 answer:
Elena L [17]2 years ago
8 0

Answer:

The 4th graph

Step-by-step explanation:

To have a maximum value, your parabola would have to open downwards. So the first 2 are wrong. Since your y-intercept is positive 4, your graph would have to touch the y axis at 4. The 3rd graph is wrong since it touches the y-axis at a negative point. The correct answer would be the 4th answer choice.

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A train leaves at 12.13 and arrives at its destination at 13.03. If the train travelled 83 km, what was it's average speed in km
Mama L [17]

Answer:

1.7km/h

Step-by-step explanation:

speed is distance over time,the time difference is 50 min and the distance is 83,you divide 83 by 50 to give you the answer

3 0
3 years ago
Line EF has an equation of a line y = −2x + 7. Which of the following could be an equation for a line that is perpendicular to l
Ksju [112]

Answer:

  y = 1/2x -3

Step-by-step explanation:

The slope of the given line is the x-coefficient: -2. The slope of the perpendicular line is the negative reciprocal of this:

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The only answer choice with a slope of 1/2 is ...

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3 0
3 years ago
Solve for s: 1/4r+4s=5
Serga [27]

Answer:

the answer is s=5/4 minus 1/16

hope this helps :D

8 0
3 years ago
Factor out the greatest common factor. <br>2f^3-8f^2​
ella [17]

Answer:

Step-by-step explanation:

8f² = 2³f²

GCF of 2f³ and 8f² = 2f²

2f³ - 8f² = 2f²(f - 4f)

8 0
3 years ago
Anthony resells shoes that he purchases. He bought a pair for $210, and then applied a 43% markup. How much will the shoes be so
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To find how much 43% of 210 is, we do a part/whole=percent/100, so a/210=57/100, 210•57=11970/100=119.70, so that means that 210-119.70=90.30, so 210+90.30=300.30 as the final cost
4 0
2 years ago
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