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anyanavicka [17]
4 years ago
14

Rewrite the following radical expressions as equivalent exponential expressions. c.1/(3√16 )

Mathematics
1 answer:
OverLord2011 [107]4 years ago
8 0

Answer:

\frac{1}{3\sqrt{16}} = (16)^{\frac{-1}{2}}.3^{-1}

Step-by-step explanation:

We have given the expression in radical form as  \frac{1}{3\sqrt{16}}

We have to convert this radical form in exponential form

We know that  \frac{1}{3\sqrt{16}} can be written as \frac{1}{3\sqrt{16}}=\frac{1}{3}\times \frac{1}{(16)^{\frac{1}{2}}}

Now if we write \frac{1}{3} in exponential form then we can write as 3^{-1} ( property of exponent )

And \frac{1}{(16)^{\frac{1}{2}}}=(16)^{\frac{-1}{2}}

So  \frac{1}{3\sqrt{16}} = (16)^{\frac{-1}{2}}.3^{-1}

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the straight line L has the equation 4y=5x+3. Point A has the coordinates (3,-2) Find the equation of the line straight line tha
Aleonysh [2.5K]

Answer:

y = - \frac{4}{5} x + \frac{2}{5}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 4y = 5x + 3 into this form by dividing the 3 terms by 4

y = \frac{5}{4} x + \frac{3}{4} ← in slope- intercept form

with slope m = \frac{5}{4}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{5}{4} } = - \frac{4}{5} , thus

y = - \frac{4}{5} x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = - \frac{12}{5} + c ⇒ c = - 2 + \frac{12}{5} = \frac{2}{5}

y = - \frac{4}{5} x + \frac{2}{5} ← equation of perpendicular line

4 0
3 years ago
Write an eqaution in slope-intercwpt form for the line with slope -5 and y-intercept 9
DerKrebs [107]

Answer:

y = -5x + 9

Step-by-step explanation:

Slope-intercept form of an equation is:

y = mx + b

Since they gave you the slope and y-intercept, it is kind of a fill-in-the-blank problem. Nothing to calculate!

Fill in the slope for the m. Fill in the y-intercept for the b.

y = -5x + 9

6 0
2 years ago
Prove this trigonometric equation;<br><br> - tan^2x + sec^2x = 1,
alekssr [168]
Hey there :)

- tan²x + sec²x = 1    or    1 + tan²x = sec²x

sin²x + cos²x = 1 
Divide the whole by cos²x

\frac{sin^2x}{cos^2x} + \frac{cos^2x}{cos^2x} = \frac{1}{cos^2x}

\frac{sinx}{cosx} = tanx so \frac{sin^2x}{cos^2x} = tan^2x
and
\frac{1}{cosx} = secx so \frac{1}{cos^2x} = sec^2x

Therefore,
tan²x + 1 = sec²x
Take tan²x to the other side {You will have the same answer}

1 = - tan²x = sec²x or sec²x - tanx = 1

3 0
3 years ago
Name two planes that intersect in SW in the<br> figure to the right
charle [14.2K]

Plane XTS and Plane VRS

A option

7 0
3 years ago
In order to set premiums at profitable levels, insurance companies must estimate how much they will have to pay in claims on car
Inessa [10]

Answer:

$595

e) If the company insures a large number of these cars, they can expect the average cost per car to be approximately E(C).

Step-by-step explanation:

Given the distribution :

C $0 $500 $1000 $2,000

P(C) 0.60 0.05 0.13 0.22

Expected probability : E(C)

Σ[C * P(C)] = (0*0.60) + (500*0.05) + (1000*0.13) + (2000*0.22) = $595

Since the expected value could be interpreted as the average value of a random variable over a large Number of experiment or trials

7 0
3 years ago
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