Let me see if I can decipher that :P
3/(3x)+1/x+4=10/(7x) first we need to make all terms have a common denominator of 21x...
(21+21+84x)/(21x)=30/(21x) multiplying both sides by 21x leaves you with
21+21+84x=30 combine like terms on left side
42+84x=30 subtract 42 from both sides
84x=-12 divide both sides by 84
x=-1/7
Answer:
The first graph.
Step-by-step explanation:
I can see 3 graphs. The first one is a cubic equation.
No, it's not written in scientific form because it has to be like this :
#1-10•10^#
So for 1, A is correct.
2. 1.22•10^8
3. 2.87•10^-2
Answer:
angle ABC is 160°.........
30°
Here's why:
Using the well-known Pythagorian theorem we can reckon how long the hypotenuse is:
c^2=6^2+36*3 -> c=12
Knowing that sin(a)=a/c=6/12=0.5 the measure of the angle in degrees is 30°
Hope could help :)
