Answer:
Perimeter is 17.07
Step-by-step explanation:
We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.
We need to use the Pythagorean theorem to get the length of DE.
So the perimeter of DEF is 5 + 5 + 7.07 = 17.07
Answer:
-17/10 is 1.7 is a rational number
Step-by-step explanation:
In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number. ... Moreover, any repeating or terminating decimal represents a rational number.
Answer:
24
P: parentheses (12 - 8) = 4
E: exponents (3^2) = 9
M: multiplication (12-8)/2 * 4 = 8
D: division (12-8)/2 = 2
A: addition (7 + 9 + 8) = 24
S: subtraction (blank)
Following the order of operations, our final answer is: 24
