What the person above me said ⬆️
Average of 5 games is no more than 74
So total 5 games with average 74 is:
74 x 5 = 370
First 4 games:
77+ 71 + 77 + 67 = 292
Find highest score on the last game
370 - 292 = 78
So highest score on the game 5 you can shoot is 78
Answer is B. 78
Answer:
Step-by-step explanation:
In a triangle ABC, given A= (-2,6),
B = (1,0) and C = (5,2)
If u = AB, v = BC, w = AC
To show that the triangle is a right angled triangle, we must show that the dot product of one of the pairs is zero.
Since u = AB
u = AB = B-A
u = AB = (1,0) - (-2,6)
u = [(1-(-2), 0-6]
u = (3, -6)
Similarly, v = BC = C-B
v = BC = (5,2) - (1,0)
v = [(5-1), (2-0)]
v = (4, 2)
Also for w:
w = AC = C - A
w = (5, 2) - (2, -6)
w = [(5-2), (2-(-6)]
w = (3, 8)
To show that the triangle is a right angled triangle, the dot product of one of any of the pairs must be zero as shown:
u.v = (3, -6) • (4, 2)
u.v = (3)(4) + (-6)(2)
u.v = 12-12
u.v = 0
i.e AB.BC = 0
This shows that length AB and BC are perpendicular to each other i.e the angle between them is 90° and since a right angled triangle has one of its angle to be 90°, it shows that the ∆ABC is a right angled triangle.
Answer:
no solution
Step-by-step explanation:
Given
(21 - 3a) = 6 - a ( multiply through by 3 to clear the fraction )
21 - 3a = 18 - 3a ( subtract 21 from both sides )
- 3a = - 3 - 3a ( add 3a to both sides )
0 = - 3 ← not possible
This indicates the equation has no solution
Is c
3n-8 = 22
3n=30
n=30/3
n=10
