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Debora [2.8K]
3 years ago
7

Which recursive formula represents the geometric sequence? 25, 20, 16,

Mathematics
1 answer:
slavikrds [6]2 years ago
6 0

Answer:

Step-by-step explanation:

a_n=\frac{4}{5}(a_{n-1})

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Situation:
Nat2105 [25]

Answer:

{ \bf{A=(P +  \frac{r}{100} ) {}^{n} }} \\ { \tt{ = (4000 +  \frac{5.5}{100} ) {}^{15} }} \\  \\ { \tt{ =  \: 1.074 \times  {10}^{54}  \: dollars}}

3 0
2 years ago
Find the perimeter of the polygon.
Semmy [17]

9514 1404 393

Answer:

  30 in

Step-by-step explanation:

The enclosing rectangle is 4 by 10, so has a perimeter of ...

  P = 2(L+W) = 2(10+4) = 28

The notch adds 2 inches to the perimeter, so the total of all side lengths is ...

  28 +2 = 30 . . . inches

5 0
2 years ago
Read 2 more answers
What is an equation of the line that passes through the points (-2, 1) and (-8, 4)?
goldenfox [79]
<h2>Answer:   y =  - ¹/₂ x    OR  y - 1 = - ¹/₂ (x + 2)   </h2>

<h3>Step-by-step explanation:  </h3>

        For us to write the equation for this line, we need to (1) find the slope of the line, and (2) use one of the points to write an equation:  

       The question gives us two points, (-2, 1) and (-8, 4), from which we can find the slope and later the equation of the line.

<u>Finding the Slope  </u>

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)    

                                         =  (4 - 1) ÷ (-8 - (-2))  

                                         =   - ¹/₂  

<u>Finding the Equation</u>  

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:

                                 ⇒  y - 1 =   - ¹/₂ (x - (-2))

                                  ∴  y - 1 = - ¹/₂ (x + 2)

  we could also transform this into the slope-intercept form ( y = mx + c)  

                                   since  y - 1 = - ¹/₂ (x + 2)

                                           ⇒     y =  - ¹/₂ x  

       

<em>To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.</em>

7 0
2 years ago
Identify tan P as a fraction and as a decimal rounded to the nearest hundredth. HELP PLEASE!!
KonstantinChe [14]
<h3>Answer: Choice C</h3>

================================================

Work Shown:

Reference angle = P

Opposite side = QR = 8.5

Adjacent side = QP = 16

tan(angle) = opposite/adjacent

tan(P) = QR/QP

tan(P) = 8.5/16

tan(P) = 0.53125

tan(P) = 0.53

6 0
3 years ago
-14x+28+6x=-44 simplify.
exis [7]
Add 6x and 14x
Subtract 28 from -44
Divide -8x and -72 by -8
x=9

6 0
3 years ago
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