Negative 3x over the power by four
Answer:
Step-by-step explanation:
Hi there!
Move 6x^2 to the other side of the equation:
Divide both sides by -2:
Factor by grouping:
Apply the zero product property:
Therefore, x = -1, 5/3.
I hope this helps!
Answer:
(i) 28. (ii) 34. (iii) 42.5
Step-by-step explanation:
<span>When exercising, especially long-term over a familiar course, you may notice your heart rate not going up as you'd expect. This is because your body has adapted to the workout that you're doing. Molly can increase her heart rate in a few ways: put the treadmill on an incline, run faster, or vary the speeds she is running, so they are always changing.</span>
Answer:
15 ft
Step-by-step explanation:
Hi, the illustration for the problem is a right triangle with:
hypotenuse (C)= the length of the ladder = L
horizontal side(A) = distance from bottom of the ladder to the building = L - 6
vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3
So, we can use Pythagoras formula:
A2 +B2= C2
(L – 6 )² + (L-3)² = L²
L²-12L+36+L²-6L+9 =L²
L2 -18L+45 =0
APPLYING QUADRATIC FORMULA WE OBTAIN:
L =15 OR L=3
If L=3
Vertical side = L-3 = 0 (Length can´t be 0)
So L=15