D... flip 1/5 into 5 is the correct way
It will be a parabola withe line of symmetry = y axis and will open downwards. The coefficient of x^2 will be -1.
As it will have a maximum and y intercept of y = 4 the function will be
f(x) = -x^2 + 4
Answer:
32p
Step-by-step explanation:
the times between 8pm and 11.30pm are:
8pm,9pm,10pm,11pm,11.30pm.
so, find the cost associated with each of them:
8pm: 12p
9pm: 12p
10pm: 12p
11pm:8p
11.30pm: 4p
sum:12+12+12+8+4 = 12 x 4 = 32p
---------------------
<span>2+2(2+2*0)2+0
</span><span><span>2+2×(2+0)×2+0
</span><span><span>2+2×2×2+0
</span><span><span>2+8+0</span><span>
10
</span></span></span></span><span>---------------------
</span>
6 divided by 812 is very difficult to do without using a calculator - I would suggest the bus shelter method, as I've shown in the photo attached, but it is still quite difficult to use that method without a calculator.
<em>If</em>, however, you mean 812 divided by 6, that is a lot easier to calculate using the bus shelter method - so, just in case, I've attached the method for that too.
6 divided by 812 = 0.007389...