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lana66690 [7]
3 years ago
7

PLEASE HELP!!!!!!

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0

Answer:

20.7 correct rounding for odyssey

Step-by-step explanation:

jek_recluse [69]3 years ago
5 0
\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}\\\\
-----------------------------\\\\

\begin{cases}
a=12\\
b=10\\
D=90+50
\end{cases}\implies d = \sqrt{{{ 12}}^2+{{ 10}}^2-2(12)(10)cos(140^o)}
\\\\\\
d\approx \sqrt{427.851}\implies d\approx 20.684551
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Plz help asap 25 points
Ierofanga [76]

Answer:

$14.39

Step-by-step explanation:

The formula for continuous compounding of interest is:

A = Pe^(rt), were P is the initial dollar amount, A is the final amount, r is the interest rate as a decimal fraction, and t is the time in years.

Here we have  $2109 = $500e^(10r) and need to solve for r.

To do this, take the natural log of both sides, obtaining:

ln 2109 = ln 500+ 10r.

Then 10r = ln 2109 - ln 500, and

         ln 2109 - ln 500

r = --------------------------------------------

                         10

 =  .1439

The interest rate was 14.39%.

8 0
3 years ago
The letters in the word January are put into a bag drawn randomly what is the probability of an A?
Helga [31]

Answer:

1/49 or 1/42

Step-by-step explanation:

if the letters are put back you would have a 2/7 chance of drawing the letter a each time but if they aren't replaced then you would have a 2/6 chance of getting a

3 0
3 years ago
If f(x)= -6x+6 then f^-1(x)=
drek231 [11]
Recall that, to get the inverse relation of any expression, we start off by doing a quick switcharoo on the variables, then we solve for "y".

\bf \stackrel{f(x)}{y}=-6x+6\qquad inverse\implies \boxed{x}=-6\boxed{y}+6
\\\\\\
x-6=-6y\implies \cfrac{x-6}{-6}=y\implies -\cfrac{x}{6}+1=\stackrel{f^{-1}(x)}{y}
3 0
3 years ago
Help on number 2 please
nlexa [21]
5x2-10x2 =25x-100x = 75x
5 0
3 years ago
A data set contains an independent and a dependent variable. Which must be true of the data set if a linear function can be
Rom4ik [11]

When we have dependent and independent variables we will have a linear relationship.

Let x be the independent variable and y be the dependent variable.

To write the  relationship we will have :

y = kx + c

Where k and c are constants.

In the case of a line the constant k is the gradient.

A multiplicative change is a log form and it is given by :

Y = Ck^x

The relationship is not linear but exponential.

The correct answer is thus :

Additive rate of change.

5 0
3 years ago
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