Answer:
68°
Step-by-step explanation:
As BA⊥BD, so ∠ABD = 90°
also, ∠ABD = ∠CBD + ∠ABC
⇒ 90° = 4x + 52° + 8x - 10°
⇒ 12x = 48°
⇒ x = 4°
now,
∠CBD = 4x + 52°
= 4(4°) + 52°
= 68°
If the common difference is 3 all you need to do is:
an=a1 - d(n-1)
2 - 3d + 3
Explicit rule = -3n + 5
Answer:
0.43x250,000 = 107,500 teenagers.
Step-by-step explanation:
43% of students spend 1 hr on HW< and there are 25,000 students.
43% is basically just 43/100, so 0.43x250,000 is 107,500 students.
Answer:
X=-1.1 repeated
Step-by-step explanation:
9x - 1= -11
+1= +1
9x = -10
Divide by 9 on both sides
X = -1.1 repeating
2^4 = 16
3^5 = 243
16 - 243 = -227
