4*2/5 = 22/5
16*1/2 = 33/2
22/5 ............. 1 min
33/2 ..............x min
x = 33/2 : 22/5 = 33/2 x 5/22 = 165/44 = 3,75 min
Answer:
Step-by-step explanation:
Basically when a variable with a negative exponent, such as 
, you just take the reciprocal of it and then change the exponent sign, or in simple terms flip it. The reciprocal of a^{-2} and changing the exponent sign is is 
.
To demonstrate let’s solve the first problem:
Using what we just learned, we take the reciprocal and flip the sign of 
and 
, which are 
and 
respectively.
Therefore the equation is now:
To simplify we add the exponents (only if they have the same base, or the same variable, in this case)
Therefore our answer is:
Nothing.
Factors of 16: 1, 2, 4, 8, 16
none of these numbers together can get -13.
[ ex. 2 and 8 won't give you 16]
Answer:
Basically asking you which two numbers multiplied together is 20. Keep in mind this is a triangle so you'll need to divide the product by 2. In this case, it would be C.4 and 10
4 time 10 is 40
40/2 = 20
Step-by-step explanation:
The mean absolute deviation of a set of data is the average distance between each data value and the mean.
The mean is (20+25+30+30+45)÷5=30
( |20-30|+|25-30|+|30-30|+|30-30|+|45-30| )÷5=6
The mean absolute deviation is 6.
