change into improper fraction then do the problem then turn back into mixed number
Answer:138
Step-by-step explanation:
First plug in the c and d values into the expression:
6(5)^2-5(4)+8
Remember PEMDAS, so you do 5^2 first getting you 25.
6(25)-5(4)+8
Continue with PEMDAS and multiply -5 and 4, and that gets you -20.
150-20+8
Now you simplify the expression to get: 138.
Solution :
Given data :
The mean length of the steel rod = 29 centimeter (cm)
The standard deviation of a normally distributed lengths of rods = 0.07 centimeter (cm)
a). We are required to find the proportion of rod that have a length of less than 28.9 centimeter (cm).
Therefore, P(x < 28.9) = P(z < (28.9-29) / 0.07)
= P(z < -1.42)
= 0.0778
b). Any rods which is shorter than 
cm or longer than 
cm that re discarded.
Therefore,
P (x < 24.84 or 25.16 < x) = P( -59.42 < z or -54.85)
= 1.052
Answer:
Geometric
Ratio = 5:1
Step-by-step explanation:
Geometric sequence is when the relation between the numbers in the sequence is multiplication or division.
For an arithmetic sequence, it is difference as it includes addition or subtraction, but since this sequence is division, we have to use ratios.
The ratio is 5:1 because the previous number is 5 times larger than the following one.
Hope this helps
-ab-a=-(-4)(-5)-(-4)=-20+4=-16
so the answer is b
