Which of the following are geometric sequences check all that apply

Mathematics

2 answers:

IRINA_888 [86]2 years ago

6 0

Answer:

I think it i a and c

Step-by-step explanation:

because the numbers make the most sense

Kaylis [27]2 years ago

4 0

Answer:

ddddddddddddddddddddddddddddddd

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In a city school, 60% of students have blue eyes, 55% have dark hair, and 35% have blue eyes and dark hair. What is the probabil

gulaghasi [49]

Answer:

58%

Step-by-step explanation:

This is a problem of conditional probability.

Let A represent the event that student has dark hair.

So P(A) = 55% = 0.55

Let B represents the event that student has blue eyes.

So, P(B) = 60% = 0.60

Probability that student has blue eyes and dark hairs = P(A and B) = 35% = 0.35

We are to find the probability that a randomly selected student will have dark hair, given that the student has blue eyes. Using the given formula and values, we get:

$P(A|B)=\frac{P(A \cap B)}{P(B)}\\\\ P(A|B)=\frac{0.35}{0.60}\\\\ P(A|B)=0.58$

Therefore, there is 0.58 or 58% probability that the student will have dark hairs, given that the student has blue eyes.

5 0

3 years ago

If x = –3, then x2 – 2x + 1 = ?

alukav5142 [94]

Since I just realized that you meant x^2-2x+1, let me evaluate this step by step:

x^2-2x+1
((-3)^2)-(2(-3))+1
9-(-6)+1
9+6+1
16

Therefore, that would equal 16.

5 0

3 years ago

Read 2 more answers

A train traveling at a constant speed covers 320 miles in 4 hours. What equation can be used to model the distance, d miles, the

vivado [14]

Answer:

80d:1t

Step-by-step explanation:

320mi:4h

80mi:1h

80d:1t

Every hour the train travels 80 miles