Answer:
Refer to explanation^
Step-by-step explanation:
As stated in the solution, 3/7 is a negative fraction.
To make it less confusing,
2/7 x (-3/7)
Multiply the numerator with the other numerator and the denominator multiply with the other. Like...
2 multiply 3 = 6 (numerator)
7 multiply 7 = 49 (denominator)
Since the 2nd fraction is a negative, the answer is negative too.
If you convert the fraction to a decimal, it gives -0.1224489796
Answer:
b^5
Exponent rule when dividing = subtract exponents
b^12 - b^7 = b^5
Step-by-step explanation:
Answer:
i would say
y = ( 77 - x ) / 2
Step-by-step explanation:
2x + 4y = 123 + 31
2x +4y = 154
4y = 154 -2x
y = ( 154 - 2x ) / 4
y = ( 77 - x ) / 2
Answer:
The answer is x= 2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hoped this helped!
Brainly, Please?
Answer:
Null hypothesis: 
Alternative hypothesis:
And for this case we assume that we have equal variances so that means:
For this case the degrees of freedom are given by:
And replacing we got:
And the best answer would be:
a. 38
Step-by-step explanation:
For this problem we want to test the following:
Null hypothesis:
Alternative hypothesis:
And for this case we assume that we have equal variances so that means:
For this case the degrees of freedom are given by:
And replacing we got:
And the best answer would be:
a. 38
