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3 years ago

What is a dot plot and how do you read it? Check all that apply.

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

6 0

Answer:

I need help on the same exact question.I'll figure it out for you though

Step-by-step explanation:

So I think it's the first one, the fourth one, and the last one, and the second one.

I hope it helps you!

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?? Help with this question plz ‼️

baherus [9]

Answer:

The fastest runner is Katie

Step-by-step explanation:

In order to determine this, we must first put them all in the same terms. For the purpose of this, we will put them all in feet per second.

Katie

14 feet/1 second = 14 ft per second

Zach

576 feet/46 seconds = 12.52 ft per second

Tony

1 mile/533 seconds = 5280 feet/533 seconds = 9.91 ft per second

Will

827 feet/1 minute = 827 feet/60 seconds = 13.78 ft per second.

So we know that the fastest is Katie.

3 0

3 years ago

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

step(i)

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

Step(ii):-

we know that

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

Final answer:-

$\frac{dy}{dt} = 34( 3 ) = 102$

8 0

3 years ago

The perimeter of a rectangular playground is 86 feet, the width of the playground is 15 feet, what is the length

Gennadij [26K]

The length is 28ft. W=15 so you’d subtract 30 from 86 and get 56. Then divide 56 by 2 and get 28 which is the length. You can check this by adding 15+15+28+27 together and see if it equals 86 which it does.

6 0

3 years ago

The median is often a better representative of the central value of a data set when the data set: source is bimodal. has a high

Lorico [155]

The median is a better representative of the central value of a data set when
the data set is highly skewed.

Note that
The median and average value only coincide when the distribution is perfectly normal.
Many outliers will also skew the distribution, and the median becomes a better representative.

8 0

4 years ago

HELP ASAP Store A sells 5 bagels for $2.05. Store B sells 3 bagels for $1.35. How do the unit rates compare?

Crank

Step-by-step explanation:

Store A:

5 bagels for $2.05, 1 bagel for $2.05/5 = $0.41.

Store B:

3 bagels for $1.35, 1 bagel for $1.35/3 = $0.45.

Hence the bagels at Store B are $0.04 more expansive than the bagels at Store A. (C)

8 0

3 years ago

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