To solve this, you have to know the formula for the area of a trapezoid:

In this question:
base 1 = 25
base 2 = 35
height = 12

The area is
360
Use the cosine rule.
c=AB=7
b=AC=8
a=BC=3
a^2=b^2+c^2-2bc(cos(A))
=>
cos(A)=(b^2+c^2-a^2)/(2bc)
=(7^2+8^2-3^2)/(2*7*8)
=13/14
=0.9286
Answer: v= 4.34
Step-by-step explanation:
5.4*4.9= 6.1v
26.46/6.1 = v
4.34= v
Answer:
45
Step-by-step explanation:
Y+4=2/3(x+3)
(-3,-4)(3,0)
1.find the slope
m=y2-y1/x2-x1
m=0-(-4)/3-(-3)
m=4/6
m=2/3
y-(-4)=2/3(x-(-3))
y+4=2/3(x+3) point-slope form