(1/2(AC) * DC) / (1/2(BC) * DC) = 3/4
AC / BC = 3/4
The coordinate of C be (x, y), then
((4(1) + 3(8))/7, (4(-9) + 3(-2))/7) = ((4 + 24)/7, (-36 - 6)/7) = (28/7, -42/7) = (4, -6)
Answer:
5
Step-by-step explanation:
plug in the values for r and s and solve.
(6)(1/4)+14(1/4)
(3/2)+(7/2)
(10/2)
5
Answer:
Step-by-step explanation:
From the information given:
The type 1 error is rejecting 
when
The meaning of Type 1 error is rejecting the claim that the mean running time is 9.7 hours when actually the mean running time is greater than 9. 7 hour.
X-0.075x=7400
Solve for x
0.925x=7400
x=7,400÷0.925
X=8,000
1)
8² + 15² = 17²
64 + 225 = 289
This is true, so the triangle is a right triangle.
2)
4² + 12² = 13²
16 + 144 = 169
This is false, so the triangle is not a right triangle.
3)
20² + 21² = 27²
400 + 441 = 729
This is false, so the triangle is not a right triangle.
4)
28² + 45² = 53²
784 + 2,025 = 2,809
This is true, so the triangle is a right triangle.
