Answer:
0.76 to 2 dec. places.
Step-by-step explanation:
There are a total of 21 marbles.
Probability of drawing a blue or a red = (8 + 8) / 21
= 16/21
= 0.76.
Step-by-step explanation:
AB=OB-OA
AB=[4,-2]-[-4,6]
AB=[8,-8],|AB|=8units
BC=OC-OB
BC=[-6,-4]-[4,-2]
BC=[-10,-2],|BC|=√104
AC=OC-OA
AC=[-6,-4]-[-4,6]
AC=[-2,-10],|AC|=√104
d. Based on the lengths of the sides,the triangle is isosceles
Answer: She has to score a minimum of 92 marks to take her average to 80
Step-by-step explanation:
Let the equation be
Three months total = 76 x 3 = 228
(x + 228) / 4 = 80
x + 228 = 80 x 4
x = 320 - 228
x = 92
X^2+3x-5
x=(-3±√(9+20))/2
x=(-3±√29)/2
D is the closest thing to the right answer, it just doesn't have any of the mathematical symbols in it
