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3 years ago

The question is in the image

Mathematics

2 answers:

MrRissso [65]3 years ago

7 0

Well your not trying to calculate for the all angles so you won’t add them. The correct answer would be 37. Not 31.

Alik [6]3 years ago

4 0

Answer is 37, my friend.

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3) There are 60 total students in two of Mr. Weber's classes. 80% of them say he is

m_a_m_a [10]

Answer:

48 will be the answer.

Step-by-step explanation:

we can simply find the 80 percent of 60.

80 * 60 / 100 = 4800/100 = 48.

so 48 students think he is their favorite teacher.

7 0

3 years ago

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Subtracing 3x2+4x-5 from 7x2-3x from this polynomial the difference is

kolezko [41]

7x^2-3x - (3x^2 +4x -5) multiply negative one across the entire second term

7x^2 - 3x -3x^2 -4x +5

4x^2 -7x +5

4 0

3 years ago

PLEASEEEEEEEEEEEEEE HELPPPPPPPPPP MEEEEEEE D: PLEASEEEEEEEEEEEEEEEE

gizmo_the_mogwai [7]

Answer:

what is it

Step-by-step explanation:

3 0

3 years ago

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Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.

natka813 [3]

Suppose that the height (in centimeters) of a candle is a linear function of

the amount of time (in hours) it has been burning.

Let x be the amount of time in hours

Let y be the heoght of a candle in centimeters

The two points are then as (9,24.5) and (23,17.5).

$\mathrm{Find\:the\:line\:}\mathbf{y=mx+b}\mathrm{\:passing\:through\:}\left(9,\:24.5\right)\mathrm{,\:}\left(23,\:17.5\right)$

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(9,\:24.5\right),\:\left(x_2,\:y_2\right)=\left(23,\:17.5\right)$

$m=\frac{17.5-24.5}{23-9}$

$m=-0.5$

$\mathrm{Plug\:the\:slope\:}-0.5\mathrm{\:into\:}y=mx+b$

$y=\left(-0.5\right)x+b$

$\mathrm{Plug\:in\:}\left(9,\:24.5\right)\mathrm{:\:}\quad \:x=9,\:y=24.5$

$24.5=\left(-0.5\right)\cdot \:9+b$

$-4.5+b=24.5$

$b=29$

$\mathrm{Construct\:the\:line\:equation\:}\mathbf{y=mx+b}\mathrm{\:where\:}\mathbf{m}=-0.5\mathrm{\:and\:}\mathbf{b}=29$

$y=-0.5x+29$

Now plug in x=21, we get

$y=-0.5*21+29=18.5$

Thus the height of the candle after 21 hours is 18.5 centimeters.

7 0

3 years ago

Can someone help please ?

forsale [732]

Answer:

5 is the hight

Step-by-step explanation:

3 0

3 years ago

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