But where is the graph and the question?
A.
let the number be n.
2n+5=45
2n=40
n=20
Slope is rise over run or vertical change over horizontal change or change in y over change in x. (All 3 mean the same)
Since the vertical change from one point to another is 14/4 or 7/2, that is the slope ... ps that’s not a line, it’s a line segment.
Answer:
30%
Step-by-step explanation:
II started by multiplying 19*15% and then kept going from 15 to 20 to 25 then to 30 and it was right
Answer:
m<ABC = 71°
Step-by-step explanation:
Given:
m<BCA = 71°
x = 31 cm
y = 50 cm
Required:
m<ABC
Solution:
First, find AB, using Cosine Rule:
AB² = x² + y² - 2xy*Cos m<ABC
Plug in the values
AB² = 31² + 50² - 2(31)(50)*cos 71
AB² = 3,461 - 1,009.26128
AB² = 2,451.73872
AB = √2,451.73872
AB = 49.5150353 ≈ 50 cm
✔️Since AB ≈ 50 cm, and AC is also 50 cm, it means the triangle is an isosceles triangle.
Therefore, the base angles of ∆ABC, <ABC and <BCA, would be congruent.
Therefore,
m<BCA = m<ABC = 71°
m<ABC = 71°
