A could be 2 while B could be 3, so -2a+3b turns into -4+9, which equals 5.
From what I know you can't really solve a a single equation with two-variables so it's just a matter of trial and error.
Just try plugging in a small number like 2 for a just to try it and you get 8b^2=72.
Divide everything by 8 to isolate b and you get that b^2=9.
Square root everything and you'll find that b=3. This is just one possible combination, I'm sure there are many more but this is obviously the one that was intended to be found.
Now that we know that a=2 and b=3 just plug them into the equation.
-2(2)+3(3)=?
-4+9=?
5
Sorry about having to use this ^ symbol, the equation maker is not working.
Answer:
D. a complex sentence
Step-by-step explanation:
A. is incorrect because it does not include a conjunction to connect the two sentences.
B. is incorrect because the sentence is not asking a question.
C. is incorrect because the sentence includes two sentences.
D. is correct because a complex sentence includes and independent clause(elizabeth likes to trek with her friends during the weekend) and a dependent clause( which is also a great way to socialize and stay fit)
<span>Since on the Earth, mass = weight, you can use a scale.
hope that helped</span>
Answer: 10.7x + 5
Step-by-step explanation:
(3.5 + 7.2)x + (-5 + 10) = 10.7x + 5
Answer:
The fraction.
Step-by-step explanation:
3 
is a mixed number, so the 1 over 2 is the fraction of the whole number.
