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2 years ago

9

Danny had 20 minutes to do a three-problem quiz. He spent 9 1/4 minutes on question A and 5 4/5 minutes on question B. How much

time did he have left for question C?

1 answer:

Travka [436]2 years ago

6 0

Answer:

4 19/20

Step-by-step explanation:

9 1/4 + 5 4/5 = 15 1/20

20- 15 1/20 = 4 19/20

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Look at the picture.

alexira [117]

A is the correct answer

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2 years ago

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What is the equation between the points (2,3) and (-2,6)

zlopas [31]

The equation between the points (2, 3) and (-2, 6) is “y = -3/4x + 9/2.

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2 years ago

Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.

marta [7]

I think you mean,

$\sum_{i=1}^{\infty}(7i+22)$

You can use the usual formula,

$S_{k}=\frac{k}{2}(a_1+a_k)$

That in this case is,

$S_{11}=\frac{11}{2}(29+99)=704$

Where I have used,

$a_k=7\cdot k +22$

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2 years ago

A line is parallel to the line y = -x + 5 and passes through the point (4. - 1). Which of the following is an equation of the

MariettaO [177]

Answer:

y = -x + 3; could also be y + 1 = -(x - 4) or y = -(x - 4) - 1 or x + y = 3

Step-by-step explanation:

No options given, so I hope this helps.

1. Identify any of the equations that have the same slope as your given equation (-1). If there's only one, stop here.

2. Find the y-intercept by replacing (x,y)=(4,-1) in the equation y = -x + b and solve for b: -1 = -(4) + b ==> 3 = b

3. Replace b in the equation y = -x + b with 3.

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5 months ago

If A:(1,4,7,8) and b:(4,6,8,9)and c:

Usimov [2.4K]

Incomplete question please add a image

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2 years ago