Answer:
300,000,000 + 9,000,000 + 90,000 + 9,000 + 900 + 90.
Step-by-step explanation:
Answer:
third graph
Step-by-step explanation:
We represent the above information in a two way frequency table.
Have Snowboarded Never Snawboarded Total
Skateboard 35 64 99
No Skateboard 13 147 160
Total 48 211 259
Therefore, the third graph is the correct answer.
Answer:
The missing vertex is (6, -3).
Step-by-step explanation:
Notice that if you graph the points, the first two points (6, 1) and (-4, 1), the y-coordinates are the same, and in the points (-4, 1) and (-4, -3) the x-coordinates are the same.
To make a rectangle, the fourth point need to have matching y-coordinates with the point (-4, -3) and matching x-coordinates with the point (6, 1). Therefore, the missing vertex is (6, -3).
Answer:
17.32m ; 110°
Step-by-step explanation:
Distance between X and Z
To calculate the distance between X and Z
y^2 = x^2 + z^2 - (2xz)*cosY
x = 20, Z = 10
y^2 = 20^2 + 10^2 - (2*20*10)* cos60°
y^2 = 400 + 100 - (400)* 0.5
y^2 = 500 - 200
y^2 = 300
y = sqrt(300)
y = 17.32m
Bearing of Z from X:
Using cosine rule :
Cos X = (y^2 + z^2 - x^2) / 2yz
Cos X = (300 + 100 - 400) / (2 * 20 '*10)
Cos X = 0 / 400
Cos X = 0
X = cos^-1 (0)
X = 90°
Bearing of Z from X
= 20° + X
= 20° + 90°
= 110°