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Digiron [165]
3 years ago
7

If f(x) = 2x2 + 2, find f(5).

Mathematics
1 answer:
nalin [4]3 years ago
6 0

answer for this question 22 if f(5)

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The measured weights of 1,000 men in a certain village follow a normal distribution with a mean of 150 pounds and a standard dev
Hitman42 [59]
Z = (X-Mean)/SD 
<span>z1 = (165 - 150)/15 = +1 </span>
<span>z2 = (135 - 150)/15 = - 1 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean +/- 1SD covers 68% of the values </span>
<span>100% - 68% = 32% </span>
<span>The remaining 32% is equally distributed below z = - 1 and z = +1 </span>
<span>32%/2 = 16% 
</span>
<span>Therefore, 
</span>
<span>a) Number of men weighing more than 165 pounds = 16% of 1000 = 160 </span>
<span>b) Number of men weighing less than 135 pounds = 16% of 1000 = 160</span>
3 0
3 years ago
Read 2 more answers
What is the answer to Envelopes are sold in packages of 5o There are 4 large envelopes in each package. How many large envelopes
trasher [3.6K]

Answer:

16

Step-by-step explanation:

there are 4 in a pack of 50.

200/50=4.

4x4=16.

8 0
2 years ago
By what percentage will an amount gro in 10yeare if it is invested at 5% p.a. compounded monthly​
lora16 [44]

Answer:

64.7%

Step-by-step explanation:

To solve this problem we use compounded interest formula.

a = p(1 + (r \div n))^{nt}

a = amount

p = principle

r = interest rate

n = number of times compounded in a period

t = time period

a = 1000(1 + (.05 \div 12)^{12 \times 10}

a = 1647.01

1647.01-1000 = 647.01

647.01/1000 = 0.64701

0.64701*100% = 64.7%

4 0
2 years ago
Eighty minus forty five plus five plus two
kvv77 [185]
80-45+5+2=42

Your answer is 42
8 0
2 years ago
5x-5 <br>------- =0. what does the x equal?<br> 10<br><br>​
Arada [10]

Answer:

i think the answer is x=1

8 0
3 years ago
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