You use the tan/cos/sin rules
So we know that the hypotenuse=46.8, opposite=44
We can use sin (negative) to find it
sin^-1=opp/hyp
sin^-1=44/66.8
=70 degrees
Hope this helps!! :)
The pattern is you multiply by 3, and add 2, so the missing number would be 53
The miles previously covered by algae is 6 miles
let m represent the miles of the coastline covered by algae before the clean-up
fraction of miles covered after the clean-up = x m =
miles covered after the clean-up = 2 miles
= 2 miles
to determine the value of m, make m the subject of the formula.
To do this, take the following step :
multiply both sides of the equation by 2
m = 2 miles x 3
m = 6 miles
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t is equal to -18.7.
You can find this by getting all the t values to the left side and all the number values to the right. The work is done below for you.
-4.48 - 17.8t + 10.29 = -12.89 - 18.8t -----> Add 18.8t to both sides
-4.48 + t + 10.29 = -12.89 ----> Subtract 10.29 from both sides
-4.48 + t = -23.18 -----> Add 4.48 to both sides
t = -18.7