For this you'll have to use the sine ratio.
sin 27 = 34 / x
x = 34 / sin 27
x = 74.89
The answer is 74.89
Answer:
Height after 5 seconds is <em>215 ft</em>
Step-by-step explanation:
Given that:
The initial velocity of object which is projected upwards is 123 ft/sec.
Height of the object, <em>h</em> after time <em>t </em> in seconds, is given as:
Here, <em>t </em>will always be positive, so and will also be positive.
But coefficient of is negative, that means something is subtracted from the positive term .
To find:
Height of object after 5 seconds.
Solution:
Given that seconds.
Let us put the value in the given relation of and :
So, height after 5 seconds is <em>215 ft</em>.
20x = 21x-3
-x= -3
x= 3
20(3)= 60°
21(3)-3= 63-3= 60°
the answer to the question is b
Answer:
21
Step-by-step explanation:
because
I=10^(1-0.13x)
When I=4.2, then:
4.2=10^(1-0.13x)
ln 4.2=ln(10^(1-0.13x))
ln 4.2=(1-0.13x)ln (10)
1-0.13x=ln 4.2 / ln 10
-0.13 x=(ln 4.2 /ln 10)-1
x=[(ln 4.2/ ln 10)-1] /(-0.13)
x=-0.37675/(-0.13)
x=2.898...≈2.9
Answer: The depth of water at which most aquatic plansts recieve the requred light would be 2.9 m