<em>p</em> ² + 6 is even if <em>p</em> ² is even (the sum of two even numbers is even), and this happens only if <em>p</em> itself is even, i.e. if <em>p</em> = 2 since 2 is the only even prime.
All other primes <em>p</em> are odd, so <em>p</em> ² would be odd, and adding 6 would not change that (odd + even = odd).
It'll be an acute angle, because a right angle would've been 90° but it's 89°. An obtuse angle would've been over 90°.
Answer:
t=−3 or t=−12
Step-by-step explanation:
Step 1: Subtract -36 from both sides.
t2+15t−(−36)=−36−(−36)
t2+15t+36=0
Step 2: Factor left side of equation.
(t+3)(t+12)=0
Step 3: Set factors equal to 0.
t+3=0 or t+12=0
t=−3 or t=−12
Answer:
27.5
Step-by-step explanation:
tens ones . tenths hundredths thousandths
2 7 . 5 3 9
Rounding to the nearest tenth means we look at the hundredth
3 <5 so we leave it alone
27.539 rounds to 27.5
Answer:
84
Step-by-step explanation:
7×[17-5]
7×12
84
hope it will help
