The correct answer is A. Grade 7
In the table, it shows that for both grades 7 and 8 there are 10 students in band so it’s equal
Answer:
(6C1)(5C1)/20C2
Step-by-step explanation:
Was right on egde
Answer: 2sqrt(10)
Step-by-step explanation:
I'll do the top left one as an example, you can do the rest.
From the geometric mean theorem, we get that 5/x = x/8.
This rearranges to x^2 = 40
x = 40 = 2sqrt(10)
Answer:
C
Step-by-step explanation:
The equation of a line passing through the origin is
y = mx ( m is the slope )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 3, 1) ← 2 points on the line
m =
= - 
y = -
x ← equation of line