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xxTIMURxx [149]
2 years ago
15

Given that f(x) = x^2-3/2

Mathematics
1 answer:
AfilCa [17]2 years ago
6 0

Answer:

368<939`01^9292^91 ibtimes

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The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of
valina [46]

Answer:

(221.39, 300.61) and (255.2223, 266.7777)

Step-by-step explanation:

Given that X, the  lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days

Middle 98% would lie on either side of the mean with probability ±2.33 in the std normal distribution on either side of 0

Corresponding we have x scores as

Between 261-2.33*17 and 261+2.33*17

i.e. in the interval = (221.39, 300.61)

If sample size = 47, then std error of sample would be

\frac{17}{\sqrt{47} }

So 98% of pregnancies would lie between

261-2.33*\frac{17}{\sqrt{47} } and 262+2.33*\frac{17}{\sqrt{47} }

= (255.2223, 266.7777)

8 0
3 years ago
The sizes of four cell phone displays are 5.6 inches, 53
swat32

Answer: The longest display is 47.75 inches longer than the shortest display.

Step-by-step explanation:

3 0
2 years ago
Saylor Henshaw earned $120 in simple interest in 9 months at an annual interest rate of 5%. How much money did he invest?
Ksju [112]
Annual interest is P*r^t, r is 0.05 here, t is 9/12=3/4=0.75
P*0.05^0.75=120
use your calculaor: P= 120÷ (0.05)^0.75=1135
so he invested about 1135 dollars
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</span> </span> </span></span>
3 0
3 years ago
Mentally estimate the total cost of items that have the following prices $1.85 $.98 $3.94 $9.78 and $6.18 round off the answer t
velikii [3]

the first 4 would be rounded up tot he nearest dollar and the last one rounded down to the nearest dollar

 doing that I estimate $23.00

Answer is C


7 0
3 years ago
Solve for P in the equation - 15 = p + 2
GarryVolchara [31]

Answer:

p+2=-15    step1:-2 on both sides

p=-17

p=-17

4 0
2 years ago
Read 2 more answers
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