Answer:

Step-by-step explanation:
We have a certain expression and are asked to find its equivalent with the answers provided :

Remove the parenthesis around 3m^5 :

Do the exponent rule for outside and inside exponent parenthesis :


Apply addition exponent rule :

Add :

Apply the addition rule for -12 + 5 :

Apply negative exponent rule for m^-7 :

Multiply the fractions :


Answer:
the answer is B
Step-by-step explanation:
^^
17 Answer: 205
<u>Step-by-step explanation:</u>


18 Answer: 1968
<u>Step-by-step explanation:</u>


19 Answer: -116
<u>Step-by-step explanation:</u>

Answer:
c = -6
Step-by-step explanation:
Let us solve your equation step-by-step, which is this: c
/−3 + 5 = 7
The first step is to simplify both sides of the equation: −1
/3
c + 5 = 7
Then, subtract 5 from both sides: -1/3c + 5 - 5 = 7 - 5 ---> -1/3c = 2
Multiply both sides by -3/1 making it equal to: c = -6.
Answer:
23 chalkboards
Step-by-step explanation:
Given:
Mean length = 5 m
Standard deviation = 0.01
Number of units ordered = 1000
Now,
The z factor =
or
The z factor =
or
Z = - 2
Now, the Probability P( length < 4.98 )
Also, From z table the p-value = 0.0228
therefore,
P( length < 4.98 ) = 0.0228
Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.