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4 years ago

How many hours are in 1/4+3/5

1 answer:

7 0

1/4 an hour is 60 divided by 4 times 1 which is 15 minutes.
3/5 an hour is 60 divided by 5 times 3 which is 36 minutes.
15 plus 36 equals 51 minutes which is less than 1 hour.

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If ax2 + bx + c = 0, then x= ? (Hint: Quadratic Formula)

Finger [1]

Answer:

x = ± $\sqrt{\frac{b^{2} -4ac}{2a}$

It didn't insert but just look up the quadratic formula.

x = ± root [(b²-4ac]/2a]

3 0

3 years ago

Which set of ordered pairs could be generated by an exponential function ?

lawyer [7]

Answer:

The third choice is the correct answer

Step-by-step explanation:

The set of ordered pairs which could be generated by an exponential function is

$(1,\frac{1}{2}),(2,\frac{1}{4}),(3,\frac{1}{8}),(4,\frac{1}{16})$

If we examine the y-values of this set of ordered pairs, we can see that they have a common ratio of

$r=\frac{1}{4}\div \frac{1}{2}$

$r=\frac{1}{4}\times 2$

$r=\frac{1}{2}$

This makes it exponential.

6 0

3 years ago

Read 2 more answers

PLEASE ANSWER - BRAINLIEST IF 2 ANSWERS - 5 STAR RATING - THANKS (PROFILE TOO)

STALIN [3.7K]

Answer:

395.64 m³

Step-by-step explanation:

Volume (figure)

Volume (hemisphere) + Volume (cylinder)
2/3πr³ + πr²h
πr² (2/3r + h)
3.14 x 9 (2 + 12)
3.14 x 9 x 14
3.14 x 126
395.64 m³

5 0

2 years ago

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masya89 [10]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

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Is y= x + 2 and y= -x + 3 perpendicular lines?

Vlad [161]

I believe y=x+2 and y=-x+3 are perpendicular lines.

8 0

4 years ago

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