Answer:
(-7,-5)
Step-by-step explanation:
Hope it helps.
Answer:
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.
2ab (8a²b-8a¹b² +6a³)
4a³65 (4a²b³-2+3ab¹)
2a²b (8ab-4a³b4 + 6a²)
4b (4a³b-2a564 +3aª)
2a (8a³b²-4a¹b5 +6a¹b)
The expressions that are equivalent to 16a³b²-8a⁵b +12a⁴b are:
4a³b (4b-2a²b⁴ +3a) ,2a²b (8ab-4a³b⁴ + 6a²) ,4b (4a³b-2a⁵b⁴ +3aª) , 2a (8a³b²-4a¹b⁵ +6a¹b)
What is Algebraic expression ?
Algebraic expression can be defined as combination of variables and constants.
We can use the distributive property of multiplication to check if the expressions are equivalent to 16a³b²-8a⁵b +12a⁴b.
Let's simplify each expression and see if we can rewrite it in the form of the given expression:
4a³b (4b-2a²b⁴ +3a)
4a³b (4b-2a²b⁴ +3a)
= 16a³b² - 8a⁵b + 12a⁴b
This expression is equivalent to the given expression.
2ab (8a²b-8a¹b² +6a³)
2ab (8a²b-8a¹b² +6a³)
= 16a³b² - 16a³b + 12a⁴b
This expression is not equivalent to the given expression.
4a³65 (4a²b³-2+3ab¹)
4a³65 (4a²b³-2+3ab¹)
= 16a³b² - 8a⁵b + 12a⁴b - 8a³
This expression is not equivalent to the given expression.
2a²b (8ab-4a³b4 + 6a²)
2a²b (8ab-4a³b4 + 6a²)
= 16a³b² - 8a⁵b + 12a⁴b
This expression is equivalent to the given expression.
4b (4a³b-2a⁵b⁴ +3aª)
4b (4a³b-2a⁵b⁴ +3aª)
= 16a³b² - 8a⁵b + 12a⁴b
This expression is equivalent to the given expression.
2a (8a³b²-4a¹b5 +6a¹b)
2a (8a³b²-4a¹b5 +6a¹b)
= 16a³b² - 8a⁵b + 12a⁴b
This expression is equivalent to the given expression.
Therefore, the expressions that are equivalent to 16a³b²-8a⁵b +12a⁴b are:
4a³b (4b-2a²b⁴ +3a)
2a²b (8ab-4a³b⁴ + 6a²)
4b (4a³b-2a⁵b⁴ +3aª)
2a (8a³b²-4a¹b⁵ +6a¹b)
So, we select options 1, 4, 5 and 6.
Therefore, the expressions that are equivalent to 16a³b²-8a⁵b +12a⁴b are: 4a³b (4b-2a²b⁴ +3a) ,2a²b (8ab-4a³b⁴ + 6a²) ,4b (4a³b-2a⁵b⁴ +3aª) , 2a (8a³b²-4a¹b⁵ +6a¹b)
To learn more about Algebraic expression from given link.
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