Answer:
The original triangle has sides of 18 cm, 18 cm and 10 cm
Step-by-step explanation:
Let x cm be the length of the leg of the original triangle and y cm be the length of the base of the original triangle.
1. Since the perimeter of the original triangle is 46 cm, then
x+x+y=46.
2. If it's base were lengthened by 3 cm, then it becomes y+3 cm. If each leg were shortened by 5 cm, then each leg becomes x-5 cm. All three sides became equal, then
y+3=x-5.
3. Solve the system of two equations:
Then 
Let U be the universal set, where U=(1,2,3,4,5,6,7,8,9)let sets A and B. be subsets of U, whereA=(2,3,8,9) and B=(1,2,3,5)
Black_prince [1.1K]
(A U B) = {1, 2, 3, 5, 8, 9}
(A U B)^c = {4, 6, 7}
A^c = {1, 4, 5, 6, 7 }
B^c = {4, 6, 7, 8, 9}
A^c ∩ B^c = {4, 6, 7}
8 + 3(4 + 5)
8 + 3(9)
8 + 27 = 35
Answer:One plane can be drawn so it contains all three points.
Step-by-step explanation:
Points R,S,T are given .
If the three points are co-linear, there are infinitely many planes through the line that contains the three points.
If we have three distinct points in 3-space then there is a plane that contains these three points.
The third statement holds true for three points R,S and T.
<h2>LOL.</h2>
2(3a + 5) + 8(a - 1)
= 6a + 10 + 8a - 8
= 6a + 8a + 10 - 8
= 14a + 2
<h3>Answer: Choice C. [ 14a + 2 ]</h3>
That’s not enough information to say how long he could do it. He could go slower or faster than her but by how much if so. So it’s not enough info.
