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julia-pushkina [17]
3 years ago
6

A company manufactures cylindrical planters. A town council wants planters with a wide rim for people to sit on. The company sug

gests that the area of the soil in the planter be about equal to the area of the rim. If the outer radius of the planter is 6.2 m, what is the radius of the soil?
Mathematics
1 answer:
Maru [420]3 years ago
4 0
Zzzzzzzzzz sorry i hope. u the best of luck
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6 scoops of lemonade mix
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4 years ago
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Simplify to create an equivalent expression.
Oksana_A [137]

Answer:

-573q+74

Step-by-step explanation:

8(10-69q)+3(-7q-2)

80--552q-21q-6

80-573q-6

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Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
r-ruslan [8.4K]

Given:

The given quadratic equation is:

12a^2+9a+7=0

To find:

The solution for the given quadratic equation in simplest form by using the quadratic formula.

Solution:

Consider a quadratic equation is defined as ax^2+bx+c=0, then the quadratic formula is:

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

The given quadratic equation is:

12a^2+9a+7=0

We have, a=12,b=9,c=7. Using the quadratic formula, we get

x=\dfrac{-(9)\pm \sqrt{(9)^2-4(12)(7)}}{2(12)}

x=\dfrac{-9\pm \sqrt{81-336}}{24}

x=\dfrac{-9\pm \sqrt{-255}}{24}

x=\dfrac{-9\pm i\sqrt{255}}{24}              [\because \sqrt{-a}=i\sqrt{a}]

The solutions of the given equations are x=\dfrac{-9-i\sqrt{255}}{24} and x=\dfrac{-9+i\sqrt{255}}{24}.

Hence, the correct option is B.

3 0
3 years ago
Solve the rational equation:. x+3/3x-2 minus x-3/3x+2=44/9x^2-4
NISA [10]
\frac{x+3}{3x-2} - \frac{x-3}{3x+2} = \frac{44}{9x^2-4}
\frac{(x+3)(3x+2) - (x-3)(3x-2)}{(3x-2)(3x+2)} = \frac{44}{(3x+2)(3x-2)}

(x+3)(3x+2) - (x-3)(3x-2) = 44
(3x^2 + 11x + 6) - (3x^2 - 11x + 6) = 44
22x = 44
x = 2Substituting x = 2 into the original does not give any extraneous solutions, so this is the answer.
4 0
3 years ago
Suppose that a single die with 9 sides (numbered 1, 2, 3, ... , 9) is rolled twice. What is the probability that the sum of the
Darina [25.2K]

Answer:

<h2>2/81</h2>

Step-by-step explanation:

Probability is defines as the likelihood or chance that an event will occur.

Probability = expected outcome of event/total outcome.

Since a single die with 9 sides was rolled, the total event outcome will be 9*9 = 81

Expected outcome will be the event that the sum of the two rolls equals 3. The possible outcomes are {(1,2), (2,1)}. The expected outcome is 2

Probability that the sum of the two rolls equals 3 = 2/81

8 0
3 years ago
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