Answer:
(-4 ,3)
Step-by-step explanation:
Point a lies on -4
Point B lies in between 2 and 4 so lets call it 3
Area for circle is πr² so πr² =28.26 and we can sub 3.14 as pi
3.14*r²=28.26 we can divide by 3.14 to get r² on it's own
r²=28.26/3.14
then we root both sides to get r on it's own
28.26/3.14=9 √9=3
and the diameter is double the radius 3*2=6 so the diameter is 6
Answer: x² - x - 12
Step-by-step explanation: When multiplying two binomials together, we can use the F.O.I.L. method.
<em>First, Outer, Inner, Last</em>.
We take the product of the first terms which is x² plus the product of the outer terms which is -4x plus the product of the inner terms which is 3x plus the product of the last terms which is -12.
So we have x² - 4x + 3x - 12.
Simplifying from here by combing the middle terms, we have x² - x - 12.
Pay very close attention to your positives and negatives as you F.O.I.L. because this is the area where most mistakes occur.
Answer:
Step-by-step explanation:
1500 - 850 litres = 650 litres
Cost = 650litres * 67.2p/litre *0.95 = 41496p = £41.50 to the nearest p (assuming the p represents pence Sterling)
The 0.95 is because he pays 95% of the basic price (i.e. 5% off)
Step-by-step explanation:
y-y₁=m(x-x₁)
1-(-4)=m(4-3)
5=m
