Can someone actually answer this question pls its my 3rd time posting it and ill ive gotten was wrong or answers that make no se
nce. Pls explain your work!!!!! THANKS
2 answers:
You might be interested in
Answer:
(b) -4.5
Step-by-step explanation:
Choosing the correct answer here is not the same as knowing what the correct value is.
<h3>Estimate</h3>You know that √30 < √100 = 10, so the sum must be negative. That is, 10 subtracted from a positive number less than 10 will give a negative result.
You know that 25 < 30 < 36, so √25 < √30 <√36. That is, √30 will be between 5 and 6. If we say √30 ≈ 5.5, then the sum is ...
-10 +√30 ≈ -10 +5.5 = -4.5
__
<em>Additional comment</em>
Of course, a calculator can tell you the value to the desired precision.
