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iren2701 [21]
3 years ago
7

What do 2psi mean in a math class

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
5 0
Psi stands for pounds per square-inch.
It is a measure of pressure, and is the equivalent pressure of putting one pound on a square-inch of area.
For example, someone weighing 180 pounds standing on his feet, with a footprint area of 72 square-inches would exert a pressure of 180 pounds/72 square inches = 2.5 pounds per square-inch, or 2.5 psi.

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Sarah is 13 years older than Mike. The sum of their ages is 37. How old is Sarah and how old is Mike? Enter your answer as on or
Blizzard [7]

Answer:

(24,13)

Step-by-step explanation:

24 is Sarah's age.

13 is Mike's age.

System:

\left \{24+13=37

I hope this helped!

3 0
3 years ago
Help please!!!<br> Can someone explain how to solve this please?
Greeley [361]

Answer:

12 the answer

Step-by-step explanation:

3 0
3 years ago
What is 15ft by 18ft times 2in depth converted into yards
NeTakaya

Answer:

5 yd³

Step-by-step explanation:

2 in = 1/6 ft

15 ft  ×  18 ft  ×  1/6 ft = 45 ft³

1 ft³ = 9 yd³

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4 0
3 years ago
In a​ study, 36​% of adults questioned reported that their health was excellent. A researcher wishes to study the health of peop
steposvetlana [31]

Answer:

0.3907

Step-by-step explanation:

We are given that 36​% of adults questioned reported that their health was excellent.

Probability of good health = 0.36

Among 11 adults randomly selected from this​ area, only 3 reported that their health was excellent.

Now we are supposed to find the probability that when 11 adults are randomly​ selected, 3 or fewer are in excellent health.

i.e. P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)

Formula :P(x=r)=^nC_r p^r q ^ {n-r}

p is the probability of success i.e. p = 0.36

q = probability of failure = 1- 0.36 = 0.64

n = 11

So, P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)

P(x\leq 3)=^{11}C_1 (0.36)^1 (0.64)^{11-1}+^{11}C_2 (0.36)^2 (0.64)^{11-2}+^{11}C_3 (0.36)^3 (0.64)^{11-3}

P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!}  (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}

P(x\leq 3)=0.390748

Hence  the probability that when 11 adults are randomly​ selected, 3 or fewer are in excellent health is 0.3907

5 0
3 years ago
A fair owner made 18 dollars when a group of 3 people entered which is a rate of dollar per person
Rus_ich [418]

Answer:

$6

Step-by-step explanation:

If a fair owner makes $18 for a group of 3 people, then the amount per person is 18 ÷ 3 = 6. The rate is $6.

7 0
3 years ago
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