Answer:
0.1
Step-by-step explanation:
total number of marbles= 2+4+8=14 marbles
probability of getting 2blue
= 4/14×3/13= 4×3/14×13=12/182= 0.06593
to the nearest tenth= 0.1
Answer:
m∠C = 26°
m∠D = 108°
m∠E = 46°
Step-by-step explanation:
Set up the equation adding the expressions together to equal 180 (sum of all angles in a triangle)
(2x) + (x+3) + (5x-7) = 180
Remove the parentheses
2x + x+ 3 + 5x - 7 = 180
Add like terms
8x - 3 -7 = 8x -4 = 180
8x - 4 = 180
Add 4 on each side to cancel it out on the right
8x - 4 = 180
+4 = +4
8x = 184
Divide each side by 8 to get the variable by itself
8/8 =1 184/8 = 23
x = 23
Substitute x in eac expression
2x = 2(23) = 46°
x + 3 = 23 + 3 = 26°
5x - 7 = 5(23) - 7 = 115 -7 = 108
Chek it by adding all the degrees to make sure it equals 180
46 + 26 + 108 = 72 + 108 = 180
Answer:
12
Step-by-step explanation:
2*6=12
What triangle? Is there one on here?
Answer:
7, x, 5, and x
Step-by-step explanation:
factors are numbers or variables being multiplied by something else. 12 and 23 arent being multiplied by anything
