Answer:
The value of 4 in 400 is 10 times the value of 4 in 40.
Step-by-step explanation:
Given : 40 and 400.
To find : compare the values of the underlined digits .
Solution : We have given 40 and 400.
In 400
4 is place at hundred place
The value of 4 in 400 is 4 hundred.
In 40
4 is place at tens place
The value of 4 in 40 is 4 tens.
ON comparing
The value of 4 in 400 is 10 times the value of 4 in 40.
Therefore, The value of 4 in 400 is 10 times the value of 4 in 40.
*copied from Brainly User PiaDeveau*
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Answer:
w = 15 (4^t)
Step-by-step explanation:
Let w be what the function is equal to
Let t be the input variable
equation :
w = k a^t
Plug in any two of the points to solve for k and a
for example, let's take (1, 60) and (2, 240):
60 = k * a^1
k = 60 / a
240 = k a^2
Substituting:
240 = 60/a (a^2)
a = 4
k = 15
The function is
w = 15 (4^t)
<span>x^2 - 6x = 7
(x - 7)(x + 1)= 0
x = 7, - 1
The answer is: x = 7, -1.</span>