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2 years ago

What is 0.4(5+2x)-0.5=3(0.3x+0.7) I've solved this but I'm not sure I got the right answer

Mathematics

2 answers:

iragen [17]2 years ago

8 0

0.4(5+2x)-0.5=3(0.3x+0.7)
2+0.8x-0.5=0.9x+2.1
0.8x-0.9x=2.1-2+0.5
-0.1x=2.5
x=-25

BlackZzzverrR [31]2 years ago

5 0

If you have a graphing calculator one way to know you are right is put the left side in Y1 and the right side in Y2 then hit 2nd trace and intersection then find the intersection and the X value is your answer. If you don't have a graphing calculator then I'm sorry

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2 years ago

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3 years ago

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andrezito [222]

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3 years ago

According to a recent article the average number of babies born with significant hearing loss (deafness) is approximately two pe

Leviafan [203]

Answer:

0.27

Step-by-step explanation:

The probability P that exactly two babies were born deaf can be gotten by the binomial distribution as

$P = {n\choose k} \, p^k \,(1-p)^{n-k}
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where n is the sample size (the number of babies randomly surveyed), k is the number of success, i. e., the baby is deaf; and p is the probability of selecting a deaf baby = 2/1000 = 0.002. Therefore

$P = {1000\choose 2}\, 0.002^2\, (1-0.002)^{1000-2}
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3 years ago

I’m confused can someone get me the answer

siniylev [52]

Angle OPM and Angle LMK

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Let me know if you don't understand my explanation.
-T.B.

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3 years ago