25 because 4(8)-7 = 32-7 = 25
Step-by-step explanation:
Since, x=8 and x=-5 are the roots.
Therefore, (x - 8) & (x - 5) will be factors.
Hence, required quadratic equation can be given as:
Answer:
cos M = 38 / 63
Step-by-step explanation:
SOH - CAH - TOA
is how I remember the calculations,
S - sin
C - cos
T - tan
(o = opposite side ; a = adjacent side ; h = hypotenuse)
SOH would be sin = opposite/hypotenuse
CAH means cos = adjacent / hypotenuse
Okay, so looking at the angle M, we know the hypotenuse [63] and the adjacent value [38]
From this, (only having H and A), we can only find the cos of M
(without finding additional numbers, which we could do with the Pythagorean theorem)
So, the cos of M is adjacent/hypotenuse
cos M = 38 / 63
(I didn't try to find other measurements of the triangle here because the most simple measurements [that were already there] worked/was an option)
Allen spends 40 mins per day
40 times 3 is 120 mins
Allen spends 120 mins on math homework per week
Allen spends 45 mins per day on science homework
45 times 2 is 90 mins
Allen spends 90 mins on science homework per week
By completing the square. Using the formula (b/2)^2. The answer is 2(x+3)^2-21
