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Veronika [31]
3 years ago
13

My social is christianmunoz_cuhh < snap chrism8448

Mathematics
2 answers:
sesenic [268]3 years ago
8 0

Answer:

ok cool thanks

Step-by-step explanation:

Lilit [14]3 years ago
5 0

Answer:

mhk. Ty

Step-by-step explanation:

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X+20≥-7 i need help pls lollllllllllllllllllllllllll
Zina [86]

Answer:

Step-by-step explanation:

x is greater or equal to 13

7 0
2 years ago
Investments historically have doubled every 9 years. If you start with a $2000 investment how much money would you have after 54
aleksandrvk [35]
You would end up having $12,000 at that rate since 54 divided by 9 is 6
6 0
3 years ago
Read 2 more answers
Trucks in a delivery fleet travel a mean of 120 miles per day with a standard deviation of 18 miles per day. The mileage per day
kvv77 [185]

The probability that a truck drives between 150 and 156 miles in a day is 0.0247. Using the standard normal distribution table, the required probability is calculated.

<h3>How to calculate the probability distribution?</h3>

The formula for calculating the probability distribution for a random variable X, Z-score is calculated. I.e.,

Z = (X - μ)/σ

Where X - random variable; μ - mean; σ - standard deviation;

Then the probability is calculated by P(Z < x), using the values from the distribution table.

<h3>Calculation:</h3>

The given data has the mean μ = 120 and the standard deviation σ = 18

Z- score for X =150:

Z = (150 - 120)/18

   = 1.67

Z - score for X = 156:

Z = (156 - 120)/18

  = 2

So, the probability distribution over these scores is

P(150 < X < 156) = P(1.67 < Z < 2)

⇒ P(Z < 2) - P(Z < 1.67)

From the standard distribution table,

P(Z < 2) = 0.97725 and P(Z < 1.67) = 0.95254

On substituting,

P(150 < X < 156) = 0.97725 - 0.95254 = 0.02471

Rounding off to four decimal places,

P(150 < X < 156) = 0.0247

Thus, the required probability is 0.0247.

Learn more about standard normal distribution here:

brainly.com/question/26822684

#SPJ1

5 0
1 year ago
PLZ HELP ME HAS SOON HAS POSSIBLE?????
olganol [36]

Answer:

- 7/2

Step-by-step explanation:

- sqrt(49/4)

We know that sqrt(a/b) = sqrt(a)/ sqrt(b)

- sqrt(49)/sqrt(4)

- 7/2

6 0
2 years ago
Read 2 more answers
Can i get some help​
Step2247 [10]

Answer:

for #11 the answer is 13

Step-by-step explanation:

8 0
3 years ago
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