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mariarad [96]
3 years ago
13

Last 2 problems that were too difficult for me, please don't get mad at me for sending a lot.

Mathematics
1 answer:
Citrus2011 [14]3 years ago
6 0

Answer:

Question 1:  Slope = \frac{1}{3}  feet

Question 2:  Slope = 4

Step-by-step explanation:

Question 1:

The pitch of a roof is the inclination of that roof. The "slopiness" of the roof. Whether it is steep or not.

To know the pitch, we need to find the "RISE" over "RUN". That means the "height" from ground and the "length" from initial position.

The height is shown in the figure as 4 ft

The length is shown in the figure as 12 ft

The slope is the quotient of it.

Hence,

Slope = 4/12 = 1/3 feet

Question 2:

To find slope from table of points, we need 2 coordinate pairs in the form (x,y). Lets take the first two points.

(1,2)

and

(3,10)

The slope would be the change in y coordinates of both (2nd point y coordinate - 1st point y coordinate) DIVIDED by the change in x coordinates of both (2nd point x coordinate - 1st point x coordinate). So:

Change in y coordinates = 10 - 2 = 8

Change in x coordinates = 3 - 1 = 2

Thus,

Slope = change in y/change in x = 8/2 = 4

Slope = 4

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Answer:

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F(x) = 3x-6
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so f/g = 3(x-2)/(x-2) = 3

hope this will help you 
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SOVA2 [1]

Answer:

18

Step-by-step explanation:

Keep in mind that anything with a subscript of 0 always comes out as a 1

16(1)+2(2)²(4⁻¹)

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7 0
2 years ago
A. 5°<br>B. 35°<br>C. 31°<br>D. 7°​
MrRissso [65]

Answer:

(2x +30) and (3x -5)  (they're opposite to eachother, so they're equal)

2x + 30 = 3x - 5 (set them equal to eachother, then subtract 3x from both side)

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x = 35 or B (this is your answer)

Step-by-step explanation:

I hope this helps :))

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3 years ago
I really need help! This is last minute and its 1 am. I'm tired so I'm going to leave it to you guys to solve my problems and pr
Illusion [34]

Answer:

<h2><u>question 1</u></h2>

n^{2} - 20n -96 = 0

use product and sum method

product = -96

sum = -20

numbers needed = ( -24 , 4)

n - 24 = 0

n + 4 = 0

hence <u>n = 24 and n = -4 </u>

<u></u>

<h2><u>Question 2 </u></h2>

<u />x^{2} + 12 x = 48<u />

in the form ax^{2}  +bx +c = 0

= x^{2} +12x - 48

make use of the formula :

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}

replace values to make 2 equations :

1.\frac{-12+\sqrt{12^{2} -4*1*-48} }{2*1} = 3.17

2.\frac{-12-\sqrt{12^{2} -4*1*-48} }{2*1} = -15.2

hence <u>x = 3.17 and x = -15.2</u>

<u />

<h2><u>Question 3 </u></h2>

<u />x^{2} -14x+40=0<u />

use product and sum method

product = 40

sum = -14

numbers needed = (-10 , -4)

x - 10 = 0

x - 4 = 0

hence<u> x = 10 and x = 4</u>

<u />

<h2><u>Question 4 </u></h2>

<u />5b^{2} -20b-18 = 7<u />

in the form ax^{2}  +bx +c = 0

this becomes 5b^{2} -20b-18-7

= 5b^{2} -20b-25

can simplify by 5

= b^{2} -4b-5 =0\\

use product and sum method

product = -5

sum = -4

numbers needed (-5 , 1)

b-5 = 0

b + 1 = 0

hence <u>b = 5 and b = -1</u>

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3 years ago
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