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Maslowich
2 years ago
14

The length of a rectangular piece of

Mathematics
2 answers:
masha68 [24]2 years ago
8 0

Answer:

B 18.79

Step-by-step explanation:

saul85 [17]2 years ago
6 0

Answer:

B

Step-by-step explanation:

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Which expression is equivalent to the following complex fraction?
tatyana61 [14]
\dfrac{\frac{x}{x-3}}{\frac{x^2}{x^2-9}}=\dfrac{x(x^2-9)}{(x-3)x^2}=\dfrac{x(x+3)(x-3)}{(x-3)x\cdot x}=\dfrac{x+3}{x}

Answer C.

3 0
3 years ago
in 2 h, kelly laid new floor tile over 1/5 of the room. when she was joined by annette, the rest of the work was completed in 3h
jeyben [28]

Answer: Annette will take 6 hours to do the entire job alone.

Step-by-step explanation:

Given: Time taken by Kelly to do \dfrac{1}{5} of job = 2 hours

i.e. Time for complete job done alone by Kelly =5\times2=10\ hours

Rest of work = 1-\dfrac{1}{5}=\dfrac{4}{5} of the job

\dfrac{4}{5}  of the complete job done by both Kelly and Annette in 3 hours

Time would be taken by then to do entire job together = 3\times\dfrac{5}{4}=3.75\ hours

Let t be the time taken by Annette to do job alone.

Then, as per situation

\dfrac{1}{3.75}=\dfrac{1}{10}+\dfrac{1}{t}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{3.75}-\dfrac{1}{10}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{4}{15}-\dfrac{1}{10}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{6}\\\\\Rightarrow\ t=6

hence, Annette will take 6 hours to do the entire job alone.

7 0
3 years ago
My question is attached below.
Stells [14]

Answer:

click the 2nd 1

Step-by-step explanation:

5 0
2 years ago
Daisha is sitting on the bus on the way home from school and is thinking
Zina [86]

Answer:

Step-by-step explanation:

P(of an event)=No. of possibilities of the event/total no. of events

a)P(completes exactly one assignment)=1/3

b) P(completes more than one assignment)=2/3

c)P(at least one assignment)=3/3=1

5 0
2 years ago
Find the area of a circle with the diameter of 3 centimeters. Use 3.14 for pi ().
wlad13 [49]

Answer:

7.065 sq. cm

Step-by-step explanation:

Diameter= 3 cm

Since 2r=d, the radius is 1.5 cm

Circle area formula:

πr^2 --> 3.14(r^2)

Plug in r:

A=3.14(1.5^2)

A=3.14(2.25)

A=7.065

3 0
2 years ago
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