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3 years ago

1. Find the volume of each cylinder ( use = 3.14 )

Mathematics

1 answer:

JulsSmile [24]3 years ago

6 0

Answer:

1. volume = 1243.44ft^3

2. volume = 54259.2ft^3

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Solve. Enter your answer as a mixed number. The driving distance from the sports arena to Kristina's house is 11 7 10 miles. The

sineoko [7]

Answer: $6\frac{1}{2} miles$

Step-by-step explanation:

From the sports arena to Kristina's house = $11\frac{7}{10}miles$

From the sports arena to Luke's house = $5\frac{2}{10} miles$

Subtract Luke from Kristina

$5\frac{2}{10}-11\frac{7}{10}$

There's a confusing but easy way to solve this. However, I'm going to convert into improper fractions to make it easier.

To convert to improper fraction, take the whole number, multiply it by the denominator and add it to the numerator. All over the same denominator.

$\frac{5*10+2}{10} -\frac{11*10+7}{10}$

$\frac{50+2}{10}-\frac{110+7}{10}\\\frac{52}{10}-\frac{117}{10}$

Subtract them.

$\frac{52-117}{10}$

$-\frac{65}{10}$

Convert to mixed number by dividing.

65/10=6

----

The 6 is the whole number, 5 the numerator and 10 the denominator. Remember the negative sign that we had.

$6\frac{5}{10}$

5 and 10 can be simplified

5/5=1

10/5=2

Our final answer would be:

$6\frac{1}{2}$

3 0

3 years ago

There are 12 marbles in a bag, and the marbles are either yellow or green. Two marbles will be randomly picked from the bag, wit

ale4655 [162]

Answer:

Step-by-step explanation:

6 0

3 years ago

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Use the quadratic formula to solve for x.<br> 3x2 + 2x - 6 = 0

Daniel [21]

Answer:

x = 1/3 (sqrt(19) - 1) or x = (1/3 (-1 - sqrt(19)))

Step-by-step explanation:

Solve for x over the real numbers:

3 x^2 + 2 x - 6 = 0

Using the quadratic formula, solve for x.

x = (-2 ± sqrt(2^2 - 4×3 (-6)))/(2×3) = (-2 ± sqrt(4 + 72))/6 = (-2 ± sqrt(76))/6:

x = (-2 + sqrt(76))/6 or x = (-2 - sqrt(76))/6

Simplify radicals.

sqrt(76) = sqrt(4×19) = sqrt(2^2×19) = 2sqrt(19):

x = (2 sqrt(19) - 2)/6 or x = (-2 sqrt(19) - 2)/6

Factor the greatest common divisor (gcd) of -2, 2 sqrt(19) and 6 from -2 + 2 sqrt(19).

Factor 2 from -2 + 2 sqrt(19) giving 2 (sqrt(19) - 1):

x = 1/6(2 (sqrt(19) - 1)) or x = (-2 sqrt(19) - 2)/6

In (2 (sqrt(19) - 1))/6, divide 6 in the denominator by 2 in the numerator.

(2 (sqrt(19) - 1))/6 = (2 (sqrt(19) - 1))/(2×3) = (sqrt(19) - 1)/3:

x = (1/3 (sqrt(19) - 1)) or x = (-2 sqrt(19) - 2)/6

Factor the greatest common divisor (gcd) of -2, -2 sqrt(19) and 6 from -2 - 2 sqrt(19).

Factor 2 from -2 - 2 sqrt(19) giving 2 (-sqrt(19) - 1):

x = 1/3 (sqrt(19) - 1) or x = 1/6(2 (-1 - sqrt(19)))

In (2 (-sqrt(19) - 1))/6, divide 6 in the denominator by 2 in the numerator.

(2 (-sqrt(19) - 1))/6 = (2 (-sqrt(19) - 1))/(2×3) = (-sqrt(19) - 1)/3:

Answer: x = 1/3 (sqrt(19) - 1) or x = (1/3 (-1 - sqrt(19)))

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2 years ago

HELPP EASY MATH FOR Y GUYS IM 5 GRADE

kirill [66]

Answer:

Step-by-step explanation:

7 0

2 years ago

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Whats the answer ? and how do u get it ?

Mariulka [41]

Answer:

angle 5 is 107 degrees

Step-by-step explanation:

This is bc they are supplementary angles so they add up to 180

6 0

3 years ago

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