Answer:
The area of the triangle is 30 sqaure inches.
Answer:
A is correct.
Explanation:
Given: (7,5) where (x, y)
Identify:
x = 7
y = 5
<u>Go 7 units through x-axis, then move up 5 units along the y-axis.</u>
1.72 because rocks 1 and 2 add up to 44.58 46.3-44.58=1.72
Answer:
5 7/20
Step-by-step explanation:
-3 4/5+9 7/10-11/20
=-19/5+9 7/10- 11/20
=-19/5+97/10-11/20
=59/-11/20
=107/20
=5 7/20
Answer:
52 cards:
26 red and 26 black
P(R) = probability of picking a red card
P(B) = probability of picking a black card
P(R) = P(B) = ¹/₂
If with replacement:
P(R∩B) = (¹/₂)(¹/₂) = ¹/₄
If without replacement:
P(R∩B) = (¹/₂)(²⁶/₅₁) = ¹³/₅₁
8 Balls:
3 red and 5 white
P(R) = probability of picking a red ball
P(W) = probability of picking a white ball
P(R) = ³/₈
P(W) = ⁵/₈
If with replacement:
P(R∩W) ∪ P(W∩R) = (³/₈)(⁵/₈) + (⁵/₈)(³/₈)
= ¹⁵/₆₄ + ¹⁵/₆₄
= ³⁰/₆₄
= ¹⁵/₃₂
If without replacement:
P(R∩W) ∪ P(W∩R) = (³/₈)(⁵/₇) + (⁵/₈)(³/₇)
= ¹⁵/₄₂ + ¹⁵/₄₂
= ³⁰/₄₂
= ⁵/₇
