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Tanzania [10]
3 years ago
12

Help please!!!!!!????!!!!

Mathematics
1 answer:
zavuch27 [327]3 years ago
4 0

Answer:

28 yd²

Step-by-step explanation:

find the two biggest sides

2x4

8 but there are two sides...

8*2= 16

*16*

now side panels

1x4

4 but there are two

4*2= 8

*8*

top and bottom panels

2x1

2 but there are two

2*2= 4

*4*

add them up

16 + 8 + 4= 28  

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What is the length of each side ?
Vikentia [17]

Answer:

36.3

Step-by-step explanation:

145.2/4 = length of each side

145.2/4 = 36.3

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3 years ago
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A rope is cut into equal pieces, and 8 of the pieces are used to tie up
slava [35]

Answer:A

Step-by-step explanation:

8 is the only equal number

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4 years ago
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A contaminant is leaking into a lake at a rate of R(t) = 1700e^0.06t gal/h. Enzymes that neutralize the contaminant have been ad
olasank [31]

Answer:

16,460 gallons

Step-by-step explanation:

This is a differential equation problem, we have a constant flow of contaminant into the lake, but also we know that only a fraction of that quantity of contaminant remains because of the enzymes. For that reason, the differential equation of contaminant's flow into the lake would be:

\frac{dQ}{dt} =1700exp(0.06t)*exp(-0.32t)\\\frac{dQ}{dt} =1700exp(-0.26t)\\

Then, we have to integrate in order to find the equation for Q(t), as the quantity of contaminant in the lake, in function of time.

\int\limits^0_t {dQ}=\int\limits^0_t {1700exp(-0.26t)dt}\\Q(t)=\frac{1700}{-0.26} exp(-0.26t)+C \\

Now, we use the given conditions to replace them in the equation, in order to solve for C

t_{0} =0\\Q_{0}=10,000\\Q_{0}=-6538exp(-0.26*0)+C\\C=10,000+6538=16538

Then, we reorganize the equation and we replace t for 17 hours, in order to determine the quantity of contaminant at that time:

Q_{t} =-6538exp(-0.26t)+16538\\Q_{17} =-6538exp(-0.26*17)+16538\\Q_{17} =16460 gallons

3 0
3 years ago
4.00x 0.75=<br><br><br>can you do it in area model ​
Elenna [48]

Answer:

the answer is 3

Step-by-step explanation:

4.00×0.75=3

4 0
3 years ago
I need some help with this question don't get it help please.
dedylja [7]

Answer:

Scale factor is 3.

Step-by-step explanation:

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3 years ago
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