3 years ago

TICKETS:

Mathematics

1 answer:

blsea [12.9K]3 years ago

7 0

You would need too do 5*5=25 if you did 5*7=35 that would be wrong

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The sum of three consecutive numbers is 90. What is the largest integer?

saveliy_v [14]

The answer would be B

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3 years ago

A man fell asleep studying for his math exam. He woke up at 9:30 p.m. If he slept for 3 hours and 50 minutes, what time did he f

Lady bird [3.3K]

Answer:

C. 5:40 p.m.

Step-by-step explanation:

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2 years ago

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Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors

goblinko [34]

Answer:

1.66

Step-by-step explanation:

We need to conduct a chi square test

The statistic used to check this is given by the below

∑(n, 1) = [(O(i) - E(i)] / E(i)

From the question, we're told the observed value is

Freshmen

Sophomore

Junior

Senior.

After that, we then calculate the expected value.

Freshman

0.3 * 300 = $90

Sophomore

0.24 * 300 = $72

Statistics then finally gives us this

X² = (93 - 90²)/90 + (68 - 72)²/72 + (85 - 78)/78 + (64 -60)²/60

X² = 3² / 90 + 4² / 73 + 13² / 78 + 4² / 60

X² = 0.1 + 0.212 + 2.167 + 0.266 x+

X² = 2.745

X = √2.745

X = 1.66

8 0

3 years ago

While working for Life magazine, Archie is assigned to the Galapagos Islands to photograph a rare, giant white turtle. The turtl

Sveta_85 [38]

Answer:

0.24

Step-by-step explanation:

From the information given:

Let's have a schematic view of a tree diagram

P(Santa Cruz) P(Isabella)

= 13/15 = 2/15

P(Success | Santa Cruz) = 0.09 P(Success | Isabella) = x

We are told that many have tried to locate the giant turtle, but 89% of them have failed.

This means the probability of success is:

P(success) = 1 - 0.89 = 0.11

We need to find P(Success | Isabella),

Suppose P(Success | Isabella) be x as shown above,

Then:

P (Success) = P(Santa) P((Success | Santa Cruz) + P(Isabella) P(Success | Isabella)

$0.11 = \dfrac{13}{15}(0.09)+ \dfrac{2}{15}(x)$

$0.11 - \dfrac{13}{15}(0.09)= \dfrac{2}{15}(x)$

$0.032= 0.133(x)$

make x the subject of the formula:

x = 0.032/0.133

x = 0.24

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3 years ago

4 boys are running a race Pete is ahead of nick by 11 meters Oliver is ahead of Manny by 10 meters Oliver is ahead of Pete by 5

zlopas [31]

Oliver is the runner in 1st place 16 meters ahead of Nick, who is the runner in the last place.

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3 years ago

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