Number of Notepads that Mrs Payne needs to buy=35
She can buy them in a pack of 10 or in Single Pads.
Number of Different Ways by which Mrs.Wayne can buy 35 Notepads
A =10 × 3 +1 × 5
B =10 × 2 +1 × 15
C =10×1 +1×25
D =1×35
=4 Ways
A. 16m wide
B. 17m wide
C. 14m wide
D. 15m wide
D)
15x17=255
15=12+3 17=14+3
what is the answer
Answer:
A=180 should be the answer
What is 9b-10=2(3b+4) solve
Please help me 20 points
Answer:
3c+2(2c+5)=3 c= -1
d-15.6=2d-556.3 d=540.7
9b-10=2(3b+4) b=6
Step-by-step explanation:
final exam is an example of which experimental design principle?
A. Randomization
B. Blocking
C. Direct control
D. Replication
Answer:replication
Step-by-step explanation:
In the experiment, giving every student the same final exam is an example of direct control. This experimental design principle ensures that all other variables are kept constant so that any differences in the outcome can be attributed only to the variable being tested.
In this experiment studying the effect of the time of day a science class is taught on test scores, giving every student in the experiment the same final exam is an example of the experimental design principle known as direct control. The direct control principle ensures that all other variables except the one being tested (in this case, the time of day) are kept constant. This is done to make sure that any differences observed in the outcome (the test scores in this case) can be attributed only to the variable being tested. Therefore, all students taking the same exam ensures that the difficulty of the test doesn't affect the results.
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