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grigory [225]
3 years ago
12

H=45t-4.9t^2 what's the max height?

Mathematics
1 answer:
const2013 [10]3 years ago
7 0
Differentiate to find time that gradient=0 45-9.8t=0 45=9.8t t =4.59 secs put this value into original equation to get 103.31
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A tree initially measured 38 1/2 feet tall. Over the next 5 1/2 years, it grew to a final height of 49 1/2 feet. During those 5
polet [3.4K]

Answer:

2feets per year

Step-by-step explanation:

49,5-38,5=11feets --->this is how much it grew in 5,5years

11/5,5=2feets/year --->this is the yearly rate

4 0
2 years ago
Read 2 more answers
What is the height of a solid with a volume of 120m and base area of 30m
igor_vitrenko [27]

Answer:

4m.

Step-by-step explanation:

Divide the total volume by the base area to find the height. This is because the volume of a solid is equal to the base area multiplied by the height.

120/30=4

4 0
3 years ago
(who are you riddle) I'm smaller than 24. I am a common multiple of 7 and 3
sergiy2304 [10]
I think the answer is 21.
6 0
3 years ago
Read 2 more answers
Can someone help me with number 3 please??!!
ipn [44]
There are 2 way to solve this.

one using Pythagoras theorem and 2nd using trigonometry

so lets solve it by both

using Pythagoras theorem we know

base^2 + perpendicular^2 = hypotanes^2

6^2 + x^2 = 12^2

36 + x^2 = 144

x^2 = 144- 36 = 108

x = √(108) = √( 2×2×3×3×3)

= (2×3) √ (3) = 6 √3

so answer is option 2

bow lets use trigonometry

we know
sin theta = perpendicular / hypotanes
sin 60 = x /12
x = 12 × sin 60
we kNow sin 60 = √3/ 2
so
x = 12×√3 /2 = 6√3
7 0
3 years ago
2,000<br> 10,000<br> milligrams<br> grams<br> 6<br> 7<br> HELPPPPPPPPP
denpristay [2]

Answer:

2000 milligrams —> 2 grams

6000 milligrams —> 6 grams

7000 milligrams —> 7 grams

10000 milligrams —> 10 grams

I hope I helped you^_^

5 0
3 years ago
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