1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kolezko [41]
3 years ago
9

The ratio of the side lengths of a quadrilateral are 2:3:5:7. If the quadrilateral's perimeter is 68, what is the length of each

side?
Mathematics
1 answer:
Marina86 [1]3 years ago
5 0
We should find the equivalent ratios of 2:3:5:7 and then add the numbers together to get a sum of 68. A unit rate of two: 4:6:10:14 = 24. A unit rate of three: 6:9:15:21 = 51. A unit rate of four: 8:12:20:28 = 68. Now we know that the length of each side is 8:12:20:28.
You might be interested in
PLEASE HELP!! IM HAVING A HARD TIME UNDERSTANDING THIS QUESTION.
kondor19780726 [428]

Answer:

14.6

Step-by-step explanation:

8 0
3 years ago
F(x) = e^-x . Find the equation of the tangent to f(x) at x=-1​
natima [27]

Answer:

The <em>equation</em> of the tangent line is given by the following equation:

\displaystyle y - \frac{1}{e} = \frac{-1}{e} \bigg( x - 1 \bigg)

General Formulas and Concepts:

<u>Algebra I</u>

Point-Slope Form: y - y₁ = m(x - x₁)

  • x₁ - x coordinate
  • y₁ - y coordinate
  • m - slope

<u>Calculus</u>

Differentiation

  • Derivatives
  • Derivative Notation

Derivative Property [Multiplied Constant]:
\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)

Derivative Rule [Basic Power Rule]:

  1. f(x) = cxⁿ
  2. f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]:
\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)

Step-by-step explanation:

*Note:

Recall that the definition of the derivative is the <em>slope of the tangent line</em>.

<u>Step 1: Define</u>

<em>Identify given.</em>

<em />\displaystylef(x) = e^{-x} \\x = -1

<u>Step 2: Differentiate</u>

  1. [Function] Apply Exponential Differentiation [Derivative Rule - Chain Rule]:
    \displaystyle f'(x) = e^{-x}(-x)'
  2. [Derivative] Rewrite [Derivative Rule - Multiplied Constant]:
    \displaystyle f'(x) = -e^{-x}(x)'
  3. [Derivative] Apply Derivative Rule [Derivative Rule - Basic Power Rule]:
    \displaystyle f'(x) = -e^{-x}

<u>Step 3: Find Tangent Slope</u>

  1. [Derivative] Substitute in <em>x</em> = 1:
    \displaystyle f'(1) = -e^{-1}
  2. Rewrite:
    \displaystyle f'(1) = \frac{-1}{e}

∴ the slope of the tangent line is equal to  \displaystyle \frac{-1}{e}.

<u>Step 4: Find Equation</u>

  1. [Function] Substitute in <em>x</em> = 1:
    \displaystyle f(1) = e^{-1}
  2. Rewrite:
    \displaystyle f(1) = \frac{1}{e}

∴ our point is equal to  \displaystyle \bigg( 1, \frac{1}{e} \bigg).

Substituting in our variables we found into the point-slope form general equation, we get our final answer of:

\displaystyle \boxed{ y - \frac{1}{e} = \frac{-1}{e} \bigg( x - 1 \bigg) }

∴ we have our final answer.

---

Learn more about derivatives: brainly.com/question/27163229

Learn more about calculus: brainly.com/question/23558817

---

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

3 0
2 years ago
To increase an amount by 3% what single multiplier would you use?<br> thanks :)
KATRIN_1 [288]
X - an amount

x+3\%x=x+0.03x=1.03x

To increase an amount by 3% you can multiply the amount by 1.03.
4 0
3 years ago
Square NOPQ is dilated by a scale factor of to form square N'O'P'Q'. Side N'O' measures 4. What is the measure of side NO?
KIM [24]
\begin{gathered} \text{NOPQ was dilated to N'O'P'Q'} \\ \text{The scale factor is }\frac{2}{3} \\ N^{\prime}O^{\prime}=4 \\ N^{\prime}O^{\prime}=\frac{2}{3}NO \\ 4=\frac{2}{3}NO \\ \text{cross multiply} \\ 12=2NO \\ NO=\frac{12}{2} \\ NO=6 \end{gathered}

4 0
1 year ago
Is 7.0001 is terminating or repeating decimals
Viefleur [7K]

Answer:

it is terminating

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What number is missing from the number pattern? 1,2,5,10,__,26,37​
    5·1 answer
  • What is the value of x? 7.2/8.4 = x/36.1
    10·1 answer
  • 7+(-14)+(-6)+13+4=-37​
    10·1 answer
  • Which construction is partially represented by the diagram on the baseball field? Explain the next set of instructions to correc
    5·1 answer
  • What is the equivalent fraction for 6 2/5
    7·2 answers
  • Terance galloped 20 kilometers in 40 minutes. Then he trotted 6 kilometers in 120 minutes. By how much did his first rate exceed
    7·1 answer
  • A point located at (-4, 5) is translated left 5 units. What are the coordinates of the image?
    6·1 answer
  • 525/4 ÷ 35/4 need the answer quick​
    9·1 answer
  • What is vaule of f^-1 (-4)
    8·1 answer
  • Write the equation of the line that passes through the points (-9,-9)(−9,−9) and (6,-7)(6,−7). Put your answer in fully simplifi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!