The measurement of fourth angle is: 130°
Further explanation:
Let A, B, C and D be the four angles.
m∠A=105°
m∠B=80°
m∠C=45°
We know that the sum of interior angles of a quadrilateral is 360°
So,
m∠A+m∠B+m∠C+m∠D=360°
105°+80°+45°+m∠D=360°
230°+m∠D=360°
m∠D=360°-230°
m∠D=130°
Keywords: Quadrilateral, Interior angles
Learn more about quadrilateral at:
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Answer:0.5(x+1.6)+1.4(3x+2.4)=9.8
Step-by-step explanation:
Answer:
-2.5 degrees
The temperature decreased 18.5 degrees F in 7.4 hours.
-
-18.5/7.4 = -2.5 degrees F
The average change in temperature over the course of 7.4 hours is -2.5 degrees F.
Your welcome!
Kayden Kohl
8th Grade
Answer: $32,625
40,000-10,000 = 35,000 ---> how much is taxed
35,000 x .25 = 8,750 = income tax
45,000 - 8,750 = 36,250
36,250 x .1 = 3,625 ---> social security
45,000 (gross pay) - 8,750 (income tax) - 3,625 = 32, 625
