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3 years ago

Which is the least common denominator of 3/4 4/5 and 2/3

2 answers:

7 0

Wow! Here you have 3 fractions with 3 different denominators that have nothing in common. In cases such as this one you find the LCD by mult. all of the given denominators together. Thus, in this case, your LCD is 4(5)(3) = 60.

OLga [1]3 years ago

5 0

To find the least common denominator of the three fractions, list out the multiples of each denominator:

Multiples of 3: {3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60}
Multiples of 4: {4,8,12,16,20,24,28,32,36,40,44,50,55,60}
Multiples of 5: {5,10,15,20,25,30,35,40,45,50,55,60}

The least common denominator of these three fractions is 60.

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Write the phrase as an algebraic equation: A number m decreased by 9 is 12.

finlep [7]

Answer:

9 - m = 12

Step-by-step explanation:

9 - m = 12

mark as brailnlest:)

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3 years ago

Solve for s.<br> 55 = 11s

netineya [11]

Answer:

s=5

Step-by-step explanation:

55=11s

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3 years ago

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Can someone please help me with these questions?

nikitadnepr [17]

QUESTION 1

The given function is

$y = - 6x - 13$

The domain of this function refers to all values of x for which y is defined.

The given function is defined for all real values of x.

The domain is all real numbers.

The correct answer is A

QUESTION 2

The equation in column 1 is

$y = - 2 {x}^{2} - 4x + 12$

We obtain the vertex form as follows;

$y = - 2( {x}^{2} + 2x) + 12$

$y = - 2( {x}^{2} + 2x + {1}^{2}) - - 2 {(1)}^{2} + 12$

$y = - 2({(x + 1)}^{2}) + 2 + 12$

$y = - 2({x + 1)}^{2} + 14$

The x-value of the vertex is -1.

The equation in column 2 is

$y = {x}^{2} - 4x + 3$

We can also find the x-value of the vertex using the formula,

$x = - \frac{b}{2a}$

$x = - \frac{ - 4}{2(1)}$

$x = 2$
The correct answer is

B) The value found in column #1 is less than the value found in column #2

QUESTION 3

The height of the ball is modeled by

$h(t) = - 16 {t}^{2} + 64t$
where t equals the time in seconds and h(t) represents the height of the ball at time t seconds.

The axis of symmetry can be found using the formula,

$t = - \frac{b}{2a}$

$t = - \frac{ 64}{2( - 16)}$

$t = 2$

The correct answer is

A) t=2; it takes 2 seconds to reach maximum height and 2 seconds to fall back to the ground

QUESTION 4

The equation of axis of symmetry is given by the formula,

$x = - \frac{b}{2a}$

For the axis of symmetry of a given quadratic function to be zero, then the b-value of quadratic function should be zero.

The only equation from the given options whose b-value is zero is

$y = {x}^{2} + 2$

The axis of symmetry is

$x = - \frac{0}{2(1)}$

$x = 0$

The correct answer is C

3 0

3 years ago

The side of a box has length x feet, and another side has length (x-7) feet. What value of a would produce an area of 18 square

kozerog [31]

Answer:

x=9

Step-by-step explanation:

(9-7) = 2

9 times 2 = 18 square feet

5 0

3 years ago

Describe the solution of f(x) shown in the graph

Mazyrski [523]

Answer:

B,) all solutions that lie on f(x)

Step-by-step explanation:

The values of f(x) are the y-values on the graph

The range mostly has positive values but there are some negative y-value too (below the x-axis)

6 0

3 years ago

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