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Dennis_Churaev [7]
3 years ago
8

Represent 0.533 (only the last 3 is bar number) into a rational number

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0

Answer:

\frac{8}{15}

Step-by-step explanation:

We require 2 equations with the repeating 3 placed after the decimal point.

let x = 0.5333.. ( multiply both sides by 10 and 100 )

10x = 5.333... → (1)

100x = 53.333... → (2)

Subtract (1) from (2) tus eliminating the repeating 3

90x = 48 ( divide both sides by 90 )

x = \frac{48}{90} = \frac{8}{15}

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The height in meters of a toy rocket at t seconds can be found by the
OlgaM077 [116]

Answer:   81.2

Step-by-step explanation:

h(t) = -5t² + 40t + 1.2

h(4) = -5(4)² + 40(4) + 1.2                   We plug 4 seconds as t, and solve h(4)

h(4) = -80 + 160 + 1.2

h(4) = 80 + 1.2

h(4) = 81.2

4 0
3 years ago
I am very confused, if somebody could help me it would mean alot. :)
Yuliya22 [10]

Answer:

3n+7=16

Step-by-step explanation:

3(3)+7=16

9+7=16

16=16

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8 0
3 years ago
36+81<br><br><br> Rewrite this using Distributive Property
Elena-2011 [213]

Answer:

3(12+27)

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8 0
3 years ago
Solve the equation
Vikki [24]

Answer:

x ≈ - 5.32, x ≈ 1.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

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add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt{11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11}

Thus

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x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

4 0
3 years ago
If f(x) = e^[3ln(x^2)], then f'(x) = ?
kherson [118]
You might need to give out the choices, if there are any. thanks for asking.
8 0
3 years ago
Read 2 more answers
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