Answer:
I got the third one DC=56
Step-by-step explanation:
<span>log_9 x + log_9 (x + 12) = log_9 64?
answer is x=4</span>
2/1 ÷ 3/9
Whenever dividing fractions , the second fraction flips
2/1* 9/3
Multiply the numerators together
Then Multiply the denominators together
18/3 then divide by 3 for 18/3
18/3÷ 3/3
= 6
Answer is 6
I am assuming that you will need to do Pythagorus Theorem to find the 3rd side length. If thats the case then you will need to do the following formula : a^2 + b^2 = <span>√(c)
So 15^2 + 30^2 = </span>√(c)
= 33.5 inches
The third angle would be 115 because 180 - 45 - 20 = 115
I hope this helped.
The vector i=<1,0> and j=<0,1> so the i+j=<1+0,0+1>=<1,1>. The length of this vector is easy: |i+j|=<span>2–√</span>
to make the vector i+j=<1,1> a unit vector we rescale it by it's
length (i.e. divide i+j by its length) , v=(i+j)/(|i+j|)
thus we have v=<span>1/<span>2–√</span><1,1></span> or <span><1/<span>2–√</span>,1/<span>2–√</span>></span>
If you check the length of this vector v, you see it indeed does have
length =1. It is parallel to the vector i+j because it's components are
proportional to the components of i+j=<1,1>.
