Answer:
the value of a is 4 ÷ 7
Step-by-step explanation:
The computation of the value of a is shown below:
Given that the following equation
|7|x| - 4 = a
Based on the above equation
As we can see that the modulus is applied
So after removing the modulus, it would be
7x - 4 = a
7x = 4
x = 4 ÷ 7
Hence, the value of a is 4 ÷ 7
The same would be relevant
Answer:
7.5 min/ mile
Step-by-step explanation:
Divide the time taken in minutes by the distance in miles
3 hours = 3 × 60 = 180 mins
3 hours 15 min = 180 + 15 = 195 mins
Average time = 
= 7.5 min/ mile
It is 42 because 63 x 2/3 is 42.
Answer:
Y= 3/4x - 4
Step-by-step explanation:
Answer:
Option D is correct.
The equation with roots 3 plus or minus square root 2 is x² - 6x + 7
Step-by-step explanation:
The roots of the unknown equation are
3 ± √2, that is, (3 + √2) and (3 - √2)
The equation can then be reconstructed by writing these roots as the solutions of the quadratic equation
x = (3 + √2) or x = (3 - √2)
The equation is this
[x - (3 + √2)] × [x - (3 - √2)]
(x - 3 - √2) × (x - 3 + √2)
x(x - 3 + √2) - 3(x - 3 + √2) - √2(x - 3 + √2)
= x² - 3x + x√2 - 3x + 9 - 3√2 - x√2 + 3√2 - 2
Collecting like terms
= x² - 3x - 3x + x√2 - x√2 - 3√2 + 3√2 + 9 - 2
= x² - 6x + 7
Hope this Helps!!!
