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2 years ago

Pls help will give brainliest

Mathematics

1 answer:

weeeeeb [17]2 years ago

6 0

Answer:

<h2>Both classes will have the same value for the third quartile </h2>

Step-by-step explanation:

This is it because the 3rd quartile is where the maximum or whisker is. Hope this helps!

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The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min

Maslowich

Answer:

67.3°C

Step-by-step explanation:

A = 25, T(0) = 100, T(1) = 90, find T(4)

dT/dt = -k(T - A)

d(T - A)/dt = -k(T - A)

d(T - A)/(T - A) = -k dt

ln(T - A) = lnC - kt

$T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75$

$T(t) = 25 + 75e^{-kt}\\T(1) = 25 + 75e^{-k} = 90\\75e^{-k} = 65\\e^{-k} = \frac{65}{75}, k = ln\frac{75}{65} = 0.1431\\T(t) = 25+75e^{-0.1431t}\\T(4) = 25+75e^{-0.1431\times4} = 67.3$

4 0

2 years ago

A toy store orders jigsaw puzzles for $3.05 and sells them for $4.95. What is the percent of markup? Round your answer to the ne

Novay_Z [31]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

the percent of markup 62.3%

$3.05 -> $4.95

Difference = $1.90 
Percentage of increase = 1.90/3.05 = Approximately 0.6229 = 62.3% = D

5 0

3 years ago

Given f(x) = -2x and g(x) = 4x - 8, find h(x) = f(x) +g(x)

Hitman42 [59]

What you need to do is add the two equations and combine like terms to get h(x). Refer to the photo for a better explanation.

5 0

3 years ago

Triangle abc is located on a coordinate plane angle c is at (1,2) the triangle is rotated counter clockwise 90° about the origin

sertanlavr [38]

After rotating a point C 90° counterclockwise about the origin the coordinates of C' would be (-2, 1)

In this question, we have been given a triangle ABC.

A point C is at (1, 2)

The triangle is rotated counter clockwise 90° about the origin.

We need to find the coordinates of C' which is image of vertex C after rotation.

We know that, if we rotate a point 90° counterclockwise about the origin a point (x, y) becomes (-y, x).

Here C(1, 2) is rotated 90 degrees counterclockwise about the origin.

So, the coordinates of C' would be,

C' = (-2, 1)

Therefore, after rotating a point C 90° counterclockwise about the origin the coordinates of C' are (-2, 1)

Learn more about the rotation here:

brainly.com/question/2763408

#SPJ1

6 0

1 year ago

THIS IS MULTIPLE CHOICE!

Troyanec [42]

Answer:

there is a cluster from 1-4

there is a gap from 5-7

The spread is from 1-8

Step-by-step explanation:

These are all true if you look... there is a bunch from 1-4, there is none from 5-7, and all of them are within 1-8, but the highest amount isn't at 3.

7 0

3 years ago