3 years ago

Which function is increasing?

Mathematics

1 answer:

Ivahew [28]3 years ago

8 0

I think your answer should be 6

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In a fireplace, about 3/4 of an 18 inch log will burn in 1/3 of an hour. How many hours will it take to burn 2 1/2 logs

Karo-lina-s [1.5K]

$\bf \begin{array}{ccll}
\stackrel{burned}{log}&\stackrel{time}{hr}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{3}{4}&\frac{1}{3}\\\\
2\frac{1}{2}&h
\end{array}\implies \cfrac{\frac{3}{4}}{2\frac{1}{2}}=\cfrac{\frac{1}{3}}{h}\implies \cfrac{\frac{3}{4}}{\frac{2\cdot 2+1}{2}}=\cfrac{\frac{1}{3}}{\frac{h}{1}}$

$\bf \cfrac{\frac{3}{4}}{\frac{5}{2}}=\cfrac{1}{3}\cdot \cfrac{1}{h}\implies \cfrac{3}{4}\cdot \cfrac{2}{5}=\cfrac{1}{3h}\implies \cfrac{6}{20}=\cfrac{1}{3h}\implies 6\cdot 3h=20\cdot 1
\\\\\\
18h=20\implies h=\cfrac{20}{18}\implies h=\cfrac{10}{9}\implies h=1\frac{1}{9}$

about 1 hour and 6 minutes with 36 seconds.

4 0

3 years ago

PLEASE HELP ME!! GEOMETRY!<br> All I need is the value of x, and how you found it. Thanks :))

Novosadov [1.4K]

Answer:

-15

Step-by-step explanation:

3x+5=BD

4x+20=AE

3x+5 = 4x+20

subtract 3x from 4x = 1x = x

subtract 20 from 5 = -15

-15=x

6 0

3 years ago

In trapezoid PQRS, identify PQ.

larisa86 [58]

The answer will be 35 because it is a proportional side length

3 0

2 years ago

Read 2 more answers

What's 2|-9| - |-2|?

UNO [17]

Answer:

Step-by-step explanation:

First, simplify by finding the absolute values:

2|-9| - |-2|

2(9) - (2)

Then, simplify this by multiplying 2 and 9:

18 - 2

= 16

So, the answer is 16

3 0

2 years ago

Points Possible: 1, Points Correct: 0 Given the equation y = x + 9, what is the y -intercept?

-Dominant- [34]

Answer:

Step-by-step explanation:

The equation says y = x + 9

Therefore, y = 9 since x = 0 on the y axis.

Picture of graph also attached :)

8 0

3 years ago