Answer:
A) False - not a right angle
B) True - it is a right angle
C) True - it is a right angle
D) False-not a right angle
Step-by-step explanation:
A) a*a+b*b=c*c (Asquared+Bsquared=C squared)
2*2+ 3*3 = 4*4
4+9=16
13 does not equal 16
B) 5*5+12*12=13+13
25+144=169
169=169 - True
C) 3*3+4*4=5*5
9+16=25
25=25 (True)
D) 4+ Root of 3 = Root of 19
False - square root of a prime number is irrational
Answer:
x = 72.5°
Step-by-step explanation:
x = 1/2(80 + 65)
x = 145/2
x = 72.5
Answer:
The ratio 450 : 200 can be reduced to lowest terms by dividing both terms by the GCF = 50 :
450 : 200 = 9 : 4
Therefore:
450 : 200 = 9 : 4
basically 9/4
Step-by-step explanation:
Answer:
83 1/3 words per minute
or approximately 83 words per minute
Step-by-step explanation:
4 pages * 250 words/ page = 1000 words
1/5 hour * 60 minutes/ 1 hour = 12 minutes
1000 words / 12 minutes = 83.333333333.... words per minute
83 1/3 words per minute
