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3 years ago

9

You need a common numerator in order to add or subract two fractions. O True O False

1 answer:

Maru [420]3 years ago

8 0

Answer: false you only need that for a denomenater

Step-by-step explanation:

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So, I really need help with functional notation...If anyone could help me solve these problems, I'd be extremely grateful!!

Law Incorporation [45]

$g(x)=\sqrt{2x-1}$
$g(1)=\sqrt{2(1)-1}=\sqrt{2-1}=\sqrt{1}=1$
$g(0)=\sqrt{2(0)-1}=\sqrt{0-1}=\sqrt{-1}=i$
$g(5)=\sqrt{2(5)-1}=\sqrt{10-1}=\sqrt{9}=3$
$g(-4)=\sqrt{2(-4)-1}=\sqrt{-8-1}=\sqrt{-7}=i\sqrt{7}$

$f(x)=x^{2}-3x+1$
$f(-3)=-3^{2}-3(-3)+1=9-(-9)+1=19$
$f(0)=0^{2}-3(0)+1=1$
$f(1)=1^{2}-3(1)+1=-1$

$h(x)=3x-1$
$h(2)=3(2)-1=5$

4 0

4 years ago

Which line is perpendicular to a line that has a slope of -1/3?

Sliva [168]

Answer:

Option (c)

Step-by-step explanation:

Slope of a line that passing through two points M(-1, 4) and N(2, -5),

$m_1$ = $\frac{y_2-y_1}{x_2-x_1}$

= $\frac{-1-2}{4+5}$

= -( $\frac{3}{9}$ )

= - $\frac{1}{3}$

To find the line perpendicular line to MN we will use the property,

$m_1\times m_2=-1$

Where $m_1$ and $m_2$ are the slopes of two perpendicular lines.

Slope of line perpendicular to MN $(m_2)$ will be,

$-\frac{1}{3}\times m_2=-1$

$m_2=3$

Slope of line joining two points J(-3, -4) and K(3, -2),

Slope = $\frac{-4+2}{-3-3}=\frac{1}{3}$

Slope of line joining two points A(-3, 2) and B(3, 0)

Slope = $\frac{2-0}{-3-3}=-\frac{1}{3}$

Slope of the line joining points E(0, -3) and F(2, 3),

Slope = $\frac{-3-3}{0-2}$ = 3

Therefore, line EF is perpendicular to the line MN.

Option (c) is the answer.

8 0

3 years ago

Approximately 64% of films are rated R. If 700 films were recently rated, how many were rated R?

oksano4ka [1.4K]

448 films. You get the answer by multiplying 700 by 64%

5 0

3 years ago

Evaluate x y when x = 83 and y = –24

lianna [129]

Is that the question? Because it is trying to trick you.

x=83
y=-24

Those are your answers

3 0

3 years ago

How many people like 2 kinds of dancing but not all 3 kinds of dancing?

marshall27 [118]

Answer:

38 people

Step-by-step explanation:

add 11, 18, and 9 together

5 0

3 years ago