Answer:
x = 38, y = 4
Step-by-step explanation:
Since AB = BC then the triangle is isosceles and the base angles are congruent, that is
∠ DAB = ∠ DCB = 52°
Subtract the sum of the base angle from 180° for ∠ ABC
∠ ABC = 180° - (52 + 52)° = 180° - 104° = 76°
Note that ∠ ABD = ∠ CBD, thus
x = 76 ÷ 2 = 38
BD bisects the side AC, thus DC = AD = 4
Thus y = 4
#3.) 48 pieces of ribbon
#3.) this week they cost $112
Answer:
61
Step-by-step explanation:
Use PEMDAS (Parenthesis first, Exponents second, Division/Multiplication third, Addition/Subtraction last)
(9+2) x 6 - 5
11 x 6 - 5
66 - 5
61
Answer:
see below
Step-by-step explanation:
7 x 13 (split 13 into 10 + 3)
= 7 x ( 10 + 3) (expand parentheses by distributive property)
= (7 x 10) + (7 x 3)
= 70 + 21
= 91
Answer:
c= 1/5 =0.200
c=5
Step-by-step explanation:
