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atroni [7]
3 years ago
11

Brian borrowed a 20 foot extension ladder to use when he paints hes house. If he sets the base of the ladder 6 feet from the hou

se, as shown below, how far up will the top of the ladder reach?round to one decimal place.

Mathematics
2 answers:
iren [92.7K]3 years ago
7 0

Answer:

It is 20.9feet

Step-by-step explanation:

Harlamova29_29 [7]3 years ago
3 0

Answer:19.1

Step-by-step explanation:

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What is the equation of the line that passes through (0, 3) and (7, 0)?
r-ruslan [8.4K]
The answer should be (C):y=(-3/7)x+3 because:

 if you use the slope formula: (Y2-Y1)/(X2-X1) it would look like this:

(0-3)/(7-0) and the slope of the line would be -3/7

then using the slope you just found, plug it into the y=mx+b equation along with one set of coordinates to find b (the y-intercept):

y=mx+b
0=(-3/7)(7)+b
b=3

SO, overall if you put the slope (m) and the y-intercept (b) that you found together, you get the line formula of y=(-3/7)+3 

5 0
3 years ago
Would you solve the equation 0.25x + 7 = 1/3x – 8 <br> using fractions or decimals? Explain please.
mamaluj [8]

Answer:

x = 180

Step-by-step explanation:

Solve the value of x :

0.25x + 7 = \frac{1}{3}x - 8

-Combine \frac{1}{3}x and 0.25x by subtracting 0.25x by \frac{1}{3}x :

0.25x - \frac{1}{3}x  + 7 = \frac{1}{3}x - \frac{1}{3}x  - 8

-\frac{1}{12}x + 7 = -8

-Subtract 7 on both sides:

-\frac{1}{12}x + 7 - 7 = -8 - 7

-\frac{1}{12}x = -15

-Multiply both sides by -12, the reciprocal of -\frac{1}{12} :

\frac{-\frac{1}{12}x}{-\frac{1}{12}} = \frac{-15}{-\frac{1}{12}}

x = -15 (-12)

x = 180

Therefore, the value of x is 180.

7 0
3 years ago
A new car is sold with or without antilock brakes, with or without a CD player, with or without electric seats, and with or with
True [87]

Answer:

8 different choices

Step-by-step explanation:

With or without antibrake=2 ways

With or without player=2ways

With or without sunroof=2 ways

Total number of ways=2×2×2=8 ways

3 0
3 years ago
Which of the following tables represents a function? (PLEASE HELP!)
frez [133]
Last one is your answer.
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2 years ago
Multiply q by r, subtract p from the result, then triple what you have
Annette [7]
3((q*r)-p)

..................
6 0
3 years ago
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