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3 years ago

A rectangular prism and its dimensions are shown in the diagram.

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

148.2

Step-by-step explanation:

LA= PH

P= 8.2+8.2+3.2+3.2=22.8 in

H= 6.5 in

PH= 22.8(6.5)= 148.2 in

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Can anyone check this after me ? did i do it right

____ [38]

Answer:

Yes, it is right. 

Using pythagoras theorum, we found the side to be 10. 

So, the perimeter is 4 times 10, i.e., 40

8 0

4 years ago

Tyrone leaves city A on a moped traveling toward city B at 19 miles per hour. At the same time, Tina leaves city B on a bicycle

RoseWind [281]

Answer:

3.5 hours

Step-by-step explanation:

Lets establish two equations, one for Tyrone's and other for Tina's position on the route, which is 119 miles long. Lets take city A as the mile 0 and city B as mile 119.

So, when Tyrone stars he is in mile 0, and each hour that passes he moves 19 miles. If x is the number of hours since he left, we can say his position in terms of x is:

f(x)=19x

Tina starts in mile 119, each hour that passes she moves 15 miles. For example, after 1 hour she will be at mile 119-15=104, in the next hour in mile 89 and so on, subtracting 15 miles each hour. So, here position can be:

g(x) = 119 - 15x

As we want them to meet, it means their position is the same, being both functions equal for some x:

f(x) = g(x)

19x = 119 - 15x

Summing 15x in both sides:

19x + 15x = 119

34x = 119

Dividing both sides by 34:

x = 119/34 = 3.5

So, they meet after 3.5 hours.

3 0

3 years ago

A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of wat

Phoenix [80]

Answer:

20%

Step-by-step explanation:

8 0

3 years ago

Please help 33-40, thanks!

kogti [31]

33. -8 belongs to:

Set of real numbers; all rational and irrational numbers
Set of integers; positive and negative whole numbers

34. 14 belongs to:

Set of natural numbers; all positive whole numbers
Set of real numbers; all rational and irrational numbers

35. 9.23 belongs to:

Set of real numbers; all rational and irrational numbers

36. $1\frac{5}{9}$ belongs to:

Set of real numbers; all rational and irrational numbers

37. Zero (0) belongs to:

Set of Integers; all positive and negative whole numbers
Set of real numbers; all rational and irrational numbers

38. -1 belongs to:

Set of integers; all positive and negative whole numbers
Set of real numbers; all rational and irrational numbers

39. 1/2 belongs to:

Set of real numbers; all rational and irrational numbers

40. 0.3 where 3 is recurring belongs to:

Set of real numbers; all rational and irrational numbers

6 0

3 years ago

If 3x + 7 = 14, then x =

Jlenok [28]

Answer:

x = 7/3

Step-by-step explanation:

3x + 7 = 14

Subtract 7 from both sides.

3x = 7

Divide both sides by 3.

x = 7/3

4 0

4 years ago

Read 2 more answers