Answer:
obtuse
Step-by-step explanation:
12^2+18^2=26^2
144+324=676
468=676
if it was over 676 it would be acute if it equaled 676 it would be a right triangle
His error is in step 3. The variable x is being multiplied by -7 and therefore he should have divided both sides by -7, not 7 as he did.
Answer=53,040
Explanation: $52,000*0.02=1,040
52,000+1,040=53,040
Answer is x² + 2x + 5
<u>Step-by-step explanation:</u>
Step 1:
Add the two polynomials
⇒ (2x + 7) + (x² - 2) = 2x + 7 + x² - 2 = x² + 2x + 5
These words are point, line and plane, and are referred to as the "three undefined terms of geometry.
They are undefined because they cannot be defined by using other figures.
