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Elina [12.6K]
3 years ago
15

What is three-eighths plus one-half?

Mathematics
2 answers:
tankabanditka [31]3 years ago
5 0

7/8, One should first make all the fractions have the same denominator so 3/8 and 1/2=4/8 so then add 3/8+4/8=7/8
WARRIOR [948]3 years ago
4 0
It would be 1/2 because 8 is the common denominator and 3+1=4 and 4/8 could be simplified to 1/2
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Sinx(cscx-sinx)=cos^2x
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3 0
2 years ago
684303 rounded to nearest thousand
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3 0
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Step-by-step explanation:

7 0
2 years ago
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sampl
pickupchik [31]

Answer: Sample size would be 296.

Step-by-step explanation:

Since we have given that

Standard deviation = 4.8 hours

Margin of error = 0.65 hours

At 98% level of confidence, z = 2.33

So, It becomes,

0.65=z\times \dfrac{\sigma}{\sqrt{n}}\\\\0.65=2.33\times \dfrac{4.8}{\sqrt{n}}\\\\\dfrac{2.33\times 4.8}{0.65}=\sqrt{n}\\\\n=(\dfrac{11.184}{0.65})^2\\\\n=17.206^2\\\\n=296.051

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7 0
3 years ago
The temperature outside is currently 10°F. It will fall at a constant rate of 3°F per hour. Which temperature will it be in 4 ho
Triss [41]

Answer:

T4 = -2°F

Step-by-step explanation:

Given the following data;

Current temperature = 10°F

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In four (4) hours, we have;

T = kt

Substituting into the equation, we have;

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T4 = current temp - new temp

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Therefore, the temperature it will be in 4 hours is - 2°F.

6 0
2 years ago
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