So to find the answer you need to use SOHCAHTOA
Sine= Opposite/ Adjacent
Cosine= Adjacent/Hypotenuse
Tan = opposite/adjacent
angle ADC is 60 so to find the length of line ABC we would use the angle and the line DC.
We would use Tan with opposite over adjacent
Tan 60 = opp. / 5 root 3
opp. = 15
so that is the length of the entire thing, all you need to do now is find the length of the single line of BC which we can use the same equation with just Tan 30 now.
Tan 30 = opp. / 5 root 3
opp. = 5
next you need to take the entire ABC length and subtract the length of BC to get AB
15-5 = 10
so the answer would be C
The most suitable sentence correction for the underlined part would be:
<h3>What is sentence correction?</h3>
Sentence correction is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.
Now,
- In the given sentence, "It has long been known that the sea otters <u>living along the West Coast of North America help</u> keep kelp forests in their habitat healthy and vital",
- The most suitable sentence correction for the underlined part would be: NO CHANGE (option A).
To learn more about sentence correction, refer to the link: brainly.com/question/14632568
#SPJ4
No 4/9 is greater than 3/8
hope this helps
Answer:
d=10
Step-by-step explanation: step 1: 2/5d-1 = 3/5d-3 add 3 to both sides
+3 +3
step 2: 2/5d+2 = 3/5d subtract 2/5d to both sides
-2/5d -2/5d
step 3: 2 = 1/5d multiply 5/1 to both sides
* 5/1 = *5/1
10 = d
The operation would be: 1-1/12-1/6=1-3/12=9/12=3/4
Good luck!
