Answer:
its D x
−
3
Step-by-step explanation:
x
2
−
5
x
+
6x
−
2
Factor x
2
−
5
x
+
6
using the AC method.
(
x
−
3
)
(
x
−
2
)
x
−
2
Cancel the common factor of x
−
2
. x
−
3
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Answer:
Step-by-step explanation:
1) 5 + 12 + 2 + 15 + 9 /5
= 43/5
= 8.6 years
2) 8 + 12 + 7 + 10 + 15 / 5
= 52/5
= 10.4 points
3) 144 + 270 + 204 / 3
= 348 + 270 / 3
= 618 / 3
= 206 books
Answer:
10 weeks
Step-by-step explanation:
she already has 14
so 5 x 10 = 50
14+50=64
Answer:
4.979044478499338 × 10²⁶
Step-by-step explanation:
Combination can be used to determine the number of ways the mice can be selected for the drugs (A, B) and the control group.
Combination factorial is define by ⁿCr =
21 group of mice receiving Drug A can be selected in ⁶⁰C₂₁ =
(60 - 21 = 39 ) mice remained for selection of 21 mice for the second drug
Drug B 21 mice can be chosen with ³⁹C₂₁ =
( 39 - 21 = 18) remained for control with ¹⁸C₁₈ =
The number of ways the mice can be chosen for drug A, drug B and the control = ⁶⁰C₂₁ × ³⁹C₂₁ × ¹⁸C₁₈ = × × = 4.979044478499338 × 10²⁶