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3 years ago

What is the least common denominator for the fractions 1/3 and 2/9?

Mathematics

1 answer:

Kryger [21]3 years ago

5 0

The least common is 3 x 3=9

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Can anyone help me on question 5?

svet-max [94.6K]

A) from 2 to infinity
B) from -infinity to -3
C) -3 to 2
D) -infinity to -3 and 2 to infinity
E) -infinity to infinity
F) no because the slope is linnear in 2 stops but has a different slope in both spots meaning it can’t be a linnear function or an exponential funtion

7 0

3 years ago

Someone please help, its for a hw assignment I have due today. What is the equation of the line through (3, 7) that is perpendic

Brilliant_brown [7]

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Step-by-step explanation:

Let l_1 be the line through (-1, -2) and (5, 3)

and l_2 be the line we require which passes through (3,7)

We have to find the lope of l_1 first

$m_1=\frac{y_2-y_1}{x_2-x_1}\\=\frac{3-(-2)}{5-(-1)}\\=\frac{3+2}{5+1}\\=\frac{5}{6}$

we have to find the equation of line perpendicular to l1

The product of slopes of two perpendicular lines is -1

Let m_2 be the slope of l_2

Then

$\frac{5}{6}*m_2=-1\\m_2=-\frac{6}{5}$

The general slope-intercept form is:

y=mx+b

Putting the value of slope

$y=-\frac{6}{5}x+b$

To find the value of b, we will put (3,7) in the equation

$7=-\frac{6}{5}(3)+b\\7=-\frac{18}{5}+b\\b=7+\frac{18}{5}\\b=\frac{35+18}{5}\\b=\frac{53}{5}$

Putting the values of b and m in standard slope intercept form:

$y=-\frac{6}{5}x+\frac{53}{5}$

Hence,

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Keywords: Equation of line

Learn more about equation of line at:

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7 0

3 years ago

A medium sized apple has 70 calories. This is 10 calories less than 1\4 of the calories in an old westie chocolate bar.How many

blondinia [14]

Answer:

$\boxed{320}$

Step-by-step explanation:

Let x = calories in chocolate bar

¼x = ¼ of the calories

¼x – 10 = 10 calories less than half the calories

¼x – 10 = 70

¼x = 80

x = 320

There are $\boxed{320}$ calories in the chocolate bar.

5 0

3 years ago

A high speed train in Japan,known at "mini-Shinkansen", can travel at constant speed at 160 miles in two hours.Would the train b

olga2289 [7]

Answer:

N0.

Step-by-step explanation:

In 1 hour it can travel 160/2 = 80 miles.

So in 8 hours it travels 8 * 80 = 640 miles only.

5 0

3 years ago

What PEMDAS is this<br><br> (4+5)78-49

4vir4ik [10]

Step #1 - P (4+5)
step #2 - E no exponents
step #3 - (9)78
step #4 - no divison
step #4 - no addition (outside of parenthesis)
step #5 - 702 - 49 = 653
hope this helped :)

7 0

3 years ago

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