9514 1404 393
Answer:
D. x = 5
Step-by-step explanation:
Add x+3 to both sides and simplify.
9x -3 -8x +(x +3) = 7 -x +(x +3)
2x = 10 . . . . . simplify
x = 5 . . . . . . . divide by 2
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As you can see, the expression we chose to add (x+3) is the one that results in variable terms being separated from constant terms after simplification.
Answer:
B 2 2/3
Step-by-step explanation:
Triangles ADB and CDB are similar. Therefore similar parts can form a proportion.
AD/DB = DB/DC
AD = ?
DB = 4
DC = 6
x/4 = 4/6 Cross multiply
6x = 16
6x/6 = 16/6
x = 2 4/6 or x = 2 2/3
It's B
Answer: 143.75 yd
Step-by-step explanation:
Answer:
The Prime Factorization is:
2 x 7
In Exponential Form:
21 x 71
CSV Format:
2, 7
Prime Factors Tree
14
/ \
2 7
Prime[1] = 2, Prime[4] = 7
Step-by-step explanation:
BD is a angle bisector and Angle bisector theorem says
ratio of other sides of the triangle formed by bisector is equal
BA/AD=BC/CD
lets say AD is x so DC will be 4-x
3/x=4.5/4-x
x=1.6
AD=1.6units
so DC=4-x=4-1.6= 2.4 units