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gulaghasi [49]
3 years ago
10

Use any method to solve the equation.if necessary, round to the nearest hundredth. 8x^2-48=0

Mathematics
1 answer:
dlinn [17]3 years ago
5 0

Answer:

x = ± 2.45

Step-by-step explanation:

Given

8x² - 48 = 0 ( add 48 to both sides )

8x² = 48 ( divide both sides by 8 )

x² = 6 ( take the square root of both sides )

x = ± \sqrt{6} = ± 2.45 ( nearest hundredth )

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\frac{5x^{5}-3x^{3}+2x^{2}-x}{x+2}=5x^{4}-10x^{3}+17x^{2}-32x+63- \frac{126}{x+2}

The coefficient of the x term is -32.
7 0
3 years ago
A sound wave travels at 330m/s and has a wavelength of 2 m. calculate its frequency and period.
RoseWind [281]

Answer:

frequency= 165Hz

period= \frac{1}{165}

Step-by-step explanation:

1. To calculate the frequency using the formula:

f = v/λ

where,

f=frequency (what the question asked)

v=speed of wave (given in the question=330m/s)

λ=wavelength (given in the question=2m)

SO,

f=\frac{330}{2}

= 165Hz

2. To calculate the period use the formula:

since f=\frac{1}{T}

therefore, T=\frac{1}{f}

where,

f= frequency (what we solved above=165Hz)

T= period (what the question asked)

SO,

T=\frac{1}{165}

4 0
2 years ago
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otez555 [7]

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6 0
3 years ago
15. What is the sum of a number and its<br> opposite?
ExtremeBDS [4]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Which similarity statement expresses the relationship between the two triangles? Triangle E F G is similar to triangle J K L Tri
Contact [7]

Answer:

Just took the quiz and got it right

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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