Answer:
a and b.
Step-by-step explanation:
I’ll explain by giving an example.
Let’s say that: a=3;b=4;c=5; => they all are consecutive -> their sum is 12.
=> if we use a) n=3 => 3*n+3=3*3+3=12 => correct.
b) n+(n+1)+(n+2)= 3+4+5=12=> correct.
c)n+2n+3n=3+6+9=18=>incorrect.
d)3n=3*3=9=>incorrect.
Answer: 140
Step-by-step explanation: 25x20=500
32x20=640
640-500= 140!!
Answer:
f(7) = 158
Step-by-step explanation:
To evaluate f(7) substitute t = 7 into f(t)
f(7) = 3(7)² + 11 = (3 × 49) + 11 = 147 + 11 = 158
B
isos triangle means 2 sides are =
Ignore the image most images are not to scale
one angle is 75 so another is 75. 75*2 =150
180-150 =30
Answer:
28 guests with 2 guests remaining
Step-by-step explanation:
254/9 = 28.2222222
so 28 remainder 2
hope this helps :) mark brainliest?
