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3 years ago

Francisca and Elizabeth are participating in a walk-a-thon fundraiser.

Mathematics

1 answer:

Ghella [55]3 years ago

8 0

Francisca raises 76.50 and Elizabeth makes 43.50 together they makes 120

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The set of ordered pairs represented by the graph below can be described as which of the following

Aneli [31]

ANSWER

a relation only

EXPLANATION

The given graph shown in the attachment represents only a relation and not a function.

The reason is that, a vertical line drawn across this graph will intersect this graph at more than one point.

Since the graph fails to pass the vertical line test, the ordered pair represented by this graph represents a relation only.

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3 years ago

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FREEEEEEEEEEEEEEEEE POINTS

Mashcka [7]

Answer: tysm

Step-by-step explanation:

I needed points to get an answer but didactic have enough

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3 years ago

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There are six multiple-choice questions on an exam, each with four possible answers. (a) Determine the number of possible answer

Lubov Fominskaja [6]

Answer:

$Possible\ Answers = 4096$

Step-by-step explanation:

Given

$Questions = 6$

$Options = 4$ each

Required

Determine the number of possible answers

The first question has 4 possible answers

The second has 4 possible answers

The third has 4 possible answers

The fourth question has 4 possible answers

The fifth has 4 possible answers

The sixth question has 4 possible answers

$Possible\ Answers = 4 * 4 * 4 * 4 * 4 * 4$

$Possible\ Answers = 4^6$

$Possible\ Answers = 4096$

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3 years ago

What is the scale factor of 24 and 18 1/6 2/3 1/4 3/4

Soloha48 [4]

Answer:

The answer is 3/4

Step-by-step explanation:

look up scale factor calculator

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2 years ago

A bucket that weighs 6 lb and a rope of negligible weight are used to draw water from a well that is 80 ft deep. The bucket is f

zaharov [31]

Answer:

3200 ft-lb

Step-by-step explanation:

To answer this question, we need to find the force applied by the rope on the bucket at time $t$

At $t=0, the weight of the bucket is 6+36=42 \mathrm{lb}$

After $t$ seconds, the weight of the bucket is $42-0.15 t \mathrm{lb}$

Since the acceleration of the bucket is the force on the bucket by the rope is equal to the weight of the bucket.

If the upward direction is positive, the displacement after $t$ seconds is $x=1.5 t$

Since the well is 80 ft deep, the time to pull out the bucket is $\frac{80}{2}=40 \mathrm{~s}$

We are now ready to calculate the work done by the rope on the bucket.

Since the displacement and the force are in the same direction, we can write

$W=\int_{t=0}^{t=36} F d x$

Use $x=1.5 t$ and $F=42-0.15 t$

$W=\int_{0}^{36}(42-0.15 t)(1.5 d t)$

$=\int_{0}^{36} 63-0.225 t d t$

$=63 \cdot 36-0.2 \cdot 36^{2}-0=3200 \mathrm{ft} \cdot \mathrm{lb}$

$=\left[63 t-0.2 t^{2}\right]_{0}^{36}$

$W=3200 \mathrm{ft} \cdot \mathrm{lb}$

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3 years ago