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Alex
3 years ago
7

A submarine dives 300ft every 2 min. And 6,750ft every 45min. Find the constant rate at which the submarine dives. Give your ans

wer in feet per minute and in feet per hour?
Mathematics
1 answer:
padilas [110]3 years ago
7 0
150 ft per minute and 9,000 feet per hour
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In 1992, there were 120 students in the freshmen class. in 2005, there were 224. find the rate of change from 1992 to 2005.
kolezko [41]

b) 8

they were asking you about the rate of increase in students per year

so you take increase in students/years= (224-120)/(2005-1992)=104/13=8

7 0
3 years ago
Calculate the length of AB if A is the point (2,3) and B is the point (-2,0)
d1i1m1o1n [39]

Answer:

Formular for coordinate length:

length =  \sqrt{ {(x_{1}  - x _{2} )}^{2}  +  {(y_{1}  - y_{2})}^{2} }

In considerance of coordinates given of A and B

x _{1} \: \:  is \:  \: 2 \\ x_{2} \:  \: is \:  \:  - 2 \\ y_{1}  \: \: is \:  \: 3 \\ y_{2} \:  \: is \: \:  0

therefore substitute:

length =  \sqrt{ { \{2 - ( - 2) \}}^{2}  +  {(3 - 0)}^{2} }  \\  \\  =  \sqrt{ {(2 + 2)}^{2} +  {3}^{2}  }  \\  =  \sqrt{ {4}^{2} +  {3}^{2}  }  \\  =  \sqrt{16 + 9}  \\  =  \sqrt{25}  \\  \\ { \boxed{ \boxed{length  \:  \: is \:  \: 5 \: units}}}

5 0
3 years ago
Read 2 more answers
Please help i’m confused
Sonja [21]

Answer:

This is the graph of a <u>parabolic</u> function.

  • Without seeing the dropdown menu, I assume that is what the question is asking. It's parabolic: the shape is like an upside-down u or an upside-down v.

Michael Jordan's hang time is <u>.9</u> seconds.

  • The parabola starts at 0 seconds, and ends at t = .9 seconds.

The maximum height is about <u>1</u> meter.

  • The vertex or very top of the parabola is at h = 1.

For t between t = .5 and t = 1, the height is <u>decreasing/falling/going down.</u>

  • I can't tell this one for sure unless I can see the dropdowns. But I can say that from .5 to 1, whatever it is, it's dropping or falling, because the height is getting less and less.
6 0
3 years ago
740% as a mixed number
alex41 [277]
740% as a fraction is 37/5.
37/5 as a mixed number is 7 2/5.

Hope this helps! Good luck.
5 0
3 years ago
50 people purchase item 5(the item 5 cost $18.94) seven of these customers use a coupon for 15% off. how much money do you make
andrezito [222]

Answer:

$927.113

Step-by-step explanation:

50-7=43

43×18.94=814.42

100-15=85

100%=18.94

what about 85%

85×18.94=1609.9÷100=16.099

16.099×7=112.693

814.42+112.693= 927.113

5 0
2 years ago
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