4x + 2y = 6
2) 5x + 2y = 12
-6x - 2y = -14
3) 5x + 4y = 12
7x - 6y = 40
4) 5m + 2n = -8
4m + 3n = 2
Angle ABC=___ degrees
Answer:
60°
Step-by-step explanation:
measure of angle ACB = 180-135= 45
then the required angle = 180-(45+75) = 60°
I hope that was helpful
The length of line AB is 17 units which is one side of a triangle.
A triangle is a closed 2D figure formed by joining three non-co-linear points. By the property of sides, triangles are of three types they are:- Equilateral triangle, Isosceles triangle, and scalene triangle.
We know the length of two given pairs of points can be determined by the distance formula which is .
Given are the points of the vertices of a ΔABC are A(-8, -10), B(9, -10), and
C(9,-3).
∴ The length of line AB is,
= units.
= units.
= 17 units.
learn more about triangles here :
#SPJ5
Answer:
17
Step-by-step explanation:
Step-by-step explanation:
Let average velocity of outgoing trip = x mph
The average velocity on the return trip is 15 miles per hour slower than the average velocity on the outgoing trip.
Average velocity of return trip = (x-15) mph
Distance to vacation place = 420 miles
Distance to vacation place = Time for outgoing trip x average velocity of outgoing trip
Distance to vacation place = Time for return trip x average velocity of return trip
We have total time T = t₁ + t₂
That is
Time required to complete the round trip where x is average velocity on the outgoing trip.