How do I use an area model to explain the product of 4.6 times 1.6
20 points
Answers
Answer:
All you have to do is break apart the decimals and divide them to find your answer.
Step-by-step explanation:
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Answers
Answer:
The constant is 40
Step-by-step explanation:
According to the question we are given an equation that represents the given situation as d = 40t where;
d is the distance in km
t is the time in seconds.
The given function is a direct proportionality. For example if p is directly proportional to q, this is expressed as p ∝ q where ∝ is the proportionality sign. In order to remove the sign we will introduce a constant say "k". The equation will become;
p = kq (p and q are the variables)
A direct proportionality means that as a variable is increasing, the other is increasing and vice versa. Comparing p = kq with d = 40t, we can see that k is equal to 40 and d is directly proportional to t
Hence the constants of proportionality for the relationship between distance in kilometers and number of hours is 40 on comparing.
A.)3(t + 19) = t – 7
B.)3(t + 7) = t – 19
C.)t + 19 = 3(t – 7)
D.)t + 7 = 3(t – 19)
Answers
hope it helped
Answers
Answer:
n = -4/9
Step-by-step explanation:
8n + 9 = -n +5
Add n to each side
8n+n + 9 = -n+n +5
9n +9 = 5
Subtract 9 from each side
9n+9 - 9 = 5-9
9n /9 = -4/9
Divide each side by 9
n = -4/9
Answers
Using trigonometry property, the best option is B.
What is trigonometry?
Trigonometry deals with "the relationship between the sides and the angles of triangles".
According to the question,
[tan x + cot x] (sin x + cos x) = 1
[tan x =
and cot x =
]
[By cancellation law]
By the Pythagoras theorem, .
Hence, using trigonometry property, the best option is B.
Learn more about trigonometry here
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(tanx + cotx)(sinxcosx) = 1
[(sinx/cosx) + (cosx/sinx)](sinxcosx) = 1
[(sinxcosx)(sinx/cosx) + (sinxcosx)(cosx/sinx)] = 1
[(sinx)^2 + (cosx)^2] = 1
*Pythagorean Identity*
1 = 1
Answers
Draw 4 cards from a deck of cards, without replacement, and record each time the card is an ace.
Roll one die 10 times and record each time you roll and prime number.
Roll 2 number cubes until rolling a sum of 8 and record how many trials you completed.
Answers
A binomial experiment is an experiment with only two possible outcomes.
In the first option, there is three possible outcomes (i.e. A, B, C)
In the second option, there is four poissible outcomes (i.e. ace, king, queen, jack)
The third option has six possible outcomes (i.e. six faces of a die)
In the last option, there are two possible outcomes (i.e. '2 number cubes')