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2 years ago

Charlize wants to measure the depth of an empty well. She drops a ball from a height of 3 feet into the well

Mathematics

1 answer:

pentagon [3]2 years ago

5 0

Answer:

about 151 feet

Step-by-step explanation:

The height of the ball at a time of 3.1 seconds is given by Charlize's equation as ...

h(3.1) = -16(3.1)^2 +3 = -150.76 . . . feet

The well is about 151 feet deep.

_____

<em>Comment on this measurement</em>

The speed of sound is sufficiently slow that it will make a difference in the time Charlize records. She would get a more accurate measurement if she were able to <em>see</em> the ball hit bottom.

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Which is closest to the quotient 2,967 ÷ 0.003?

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Answer:

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Divide 2,967 ÷ 0.003

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Which of the following is equivalent to the expression (3ab)(-5ab)?

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$-15a^{2}b^{2}$

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Kayson mixes 300300300 milliliters (\text{mL})(mL)left parenthesis, start text, m, L, end text, right parenthesis of spinach, 20

Georgia [21]

Answer:

Total, T = (300s+200b+42d) mg

Step-by-step explanation:

Given that,

Kayson mixes 300 mL spinach, 200 mL of berries, and 42 mL of dressing to make a salad.

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It means that, total mg of vitamin C is :

Total, T = (300s+200b+42d) mg

Hence, this is the required solution.

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2 years ago

A researcher is using a repeated-measures design to test for mean differences among four treatment conditions. If the data for t

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Answer:

Step-by-step explanation:

Given that a researcher is using a repeated-measures design to test for mean differences among four treatment conditions.

The data for this study consist of 10 scores in each treatment.

We have to find the total subjects who participated in the study.

Each treatment has 10 scores

No of treatments = 4

Hence subjects participated in the study

= no of treatment x no of subjects

= $10*4=40$

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2 years ago

How is the graph of the parent function of y = 3√x transformed to produce the graph y = 3√1/2x? It is horizontally stretched by

inna [77]

The graph of the parent function is horizontally stretched by a factor of $\frac{1}{2}$ ⇒ 1st answer

Step-by-step explanation:

Let us revise some transformation

A horizontal compression (or shrinking) is the squeezing of the graph toward the y-axis.

A horizontal stretching is the stretching of the graph away from the y-axis

If k > 1, the graph of y = f(k•x) is the graph of f(x) horizontally shrunk (or compressed) by dividing each of its x-coordinates by k.
If 0 < k < 1 (a fraction), the graph of y = f(k•x) is the graph of f(x) horizontally stretched by dividing each of its x-coordinates by k
If k should be negative, the horizontal stretch or shrink is followed by a reflection across the y-axis

A vertical stretching is the stretching of the graph away from the

x-axis

A vertical compression (or shrinking) is the squeezing of the graph toward the x-axis.

If k > 1, the graph of y = k•f(x) is the graph of f(x) vertically stretched by multiplying each of its y-coordinates by k.
If 0 < k < 1 (a fraction), the graph of y = k•f(x) is the graph of f(x) vertically shrunk (or compressed) by multiplying each of its y-coordinates by k
If k should be negative, the vertical stretch or shrink is followed by a reflection across the x-axis.

∵ $y=3\sqrt{x}$ is a parent function

∵ Its graph transformed to produce the graph of $y=3\sqrt{\frac{1}{2} x}$

- That means x is multiplied by a factor k, then it is compressed

or stretched horizontally

∵ k = $\frac{1}{2}$

- The factor $\frac{1}{2}$ is between 0 and 1, then it is

stretched horizontally as the second rule above

∴ The graph of the parent function is stretched horizontally by a

factor of $\frac{1}{2}$

The graph of the parent function is horizontally stretched by a factor of $\frac{1}{2}$

Look to the attached figure for more understand

Learn more:

You can learn more about transformation in brainly.com/question/9381523

#LearnwithBrainly

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2 years ago