3 years ago

20 points* any help would be appreciated

Mathematics

1 answer:

drek231 [11]3 years ago

4 0

Answer:

well I need a sec to remember what that is but be right back

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After how many seconds is the height 68 feet? When the equation is h=-16t2+64t+8

Rudiy27

68=-16t2+64t+8
16t2-64t+60=0

4t2-16t+15=0
(2t-5)(2t-3)=0
t=5/2 or 3/2
The object is at 68 feet after 3/2 secs, and returns to 68 feet after another second..

5 0

3 years ago

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. If the lion’s moat is 4 m de

ZanzabumX [31]

Answer:

The elephants' moat should be 3.2 meters deep.

Step-by-step explanation:

Suppose, the depth of the elephants' moat is $x$ meter.

Width of the lions' moat is 5 meter and width of the elephants' moat is 4 meter.

Given that, the lion’s moat is 4 meter deep.

So, according to the ratio of width and depth, the equation will be.......

$\frac{5}{4}=\frac{4}{x}\\ \\ 5x=4*4\\ \\ 5x=16\\ \\ x=\frac{16}{5}=3.2$

Thus, the elephants' moat should be 3.2 meters deep.

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3 years ago

57.63 is the Regular price. The discount is 10%. What;s the sales price.

Kipish [7]

57.63×0.9=51.867($51.87)

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3 years ago

Which expression is represented by this model?

Sav [38]

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the correct answer is A

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2 years ago

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Give the proportion a/b = c/d Solve for c

dybincka [34]

Answer:

the answer is c = (ad)/b

Step-by-step explanation:

See the picture

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3 years ago

*20* points* any help would be appreciated

20 points* any help would be appreciated