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kirill115 [55]
3 years ago
7

If m = 8, how many solutions are there to the expression 7m?

Mathematics
2 answers:
andriy [413]3 years ago
5 0
Not sure I can tryhhhhhhhhhhhhhjjjjjjj
Mashutka [201]3 years ago
3 0
Excchguvuvucucucucucuvihohojojohohphphphogoguretetwrqwwqqwwwesfxffcgvhbjb
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R = sec(θ) − 2cos(θ), where -π/2 < θ < π/2
Alex

Answer:

  y = (x/(1-x))√(1-x²)

Step-by-step explanation:

The equation can be translated to rectangular coordinates by using the relationships between polar and rectangular coordinates:

  x = r·cos(θ)

  y = r·sin(θ)

  x² +y² = r²

__

  r = sec(θ) -2cos(θ)

  r·cos(θ) = 1 -2cos(θ)² . . . . . . . . multiply by cos(θ)

  r²·r·cos(θ) = r² -2r²·cos(θ)² . . . multiply by r²

  (x² +y²)x = x² +y² -2x² . . . . . . . substitute rectangular relations

  x²(x +1) = y²(1 -x) . . . . . . . . . . . subtract xy²-x², factor

  y² = x²(1 +x)/(1 -x) = x²(1 -x²)/(1 -x)² . . . . multiply by (1-x)/(1-x)

  \boxed{y=\dfrac{x\sqrt{1-x^2}}{1-x}}

__

The attached graph shows the equivalence of the polar and rectangular forms.

4 0
3 years ago
A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a c
SpyIntel [72]
Check the picture below.

\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
P(x) = &{{ -0.05}}x^2&{{ +500}}x&{{ -100000}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-------------------------------\\\\
\textit{so }-\cfrac{b}{2a}\textit{ units maximize the profit, and}\\\\\\
c-\cfrac{b^2}{4a}\textit{ dollars is the maximum profit}

5 0
3 years ago
Maggie spent half of the money in her savings account on a new computer.if the computer was $345, how much money was in her savi
sergejj [24]

Answer:

$690

Step-by-step explanation:

all you have to do is multiply $345 by 2 since she spent half of her money

7 0
3 years ago
400 ones = how many hundreds
Travka [436]


OK you have a total of 400 ones and your asking how many hundreds..

this is a 100 and you 400 of ones so think if u have 400 ones and each hundred equals 100 then you have 4 hundreds cause you have ..

400 ones   and

4 hundreds

hoped this helped!!!

4 0
3 years ago
What is 3 1/8 in simplest form?
Deffense [45]
3 1/8 = 25/8

25 and 8 have no common factors, so 25/8 is in simplest form.
6 0
3 years ago
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