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
Mariana [72]
3 years ago
14

The speedometer needle in a car is 2.5 inches long. When accelerating from 0 to 60 miles per hour the needle

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0

The arc length traveled by the needle is 7.0904in^{2}

Step-by-step explanation:

<u></u>

<u>Step 1</u>

In the above question  are given that

The speedometer needle in a car is 2.5 inches long

The needle  sweeps out an arc of 130°.

Let r be the length of the speedometer needle,So

r=2.5

m∠C=130°

<u>Step 2</u>

The formula for determining the area of the sector is

A=\frac{m}{360}*\pi r^{2}

Where,the central angle is m°

and The radius is r

Substituting the value of m and  r from the step 1  in the below equation we get

A=\frac{130}{360}*\pi *2.5^{2}

A= 0.3611*\pi*6.5=7.0904 in^{2}

Hence the value of the Area of the sector is = 7.0904 in^{2}

<u></u>

<u>Step 3</u>

<u>So, the arc length traveled by the needle </u><u> 7.0904 </u>in^{2}<u />

<u></u>

You might be interested in
You deposit $8500 in an account that pays 1.78% annual interest. Find the balance after 10 years when the interest is compounded
Feliz [49]

Step-by-step explanation:

step 1. let's call the balance A, the initial amount P, the yearly rate r, the number of compounds yearly n, and the time t.

step 2. A = P(1 + r/n)^(nt) (compounding equation)

step 3. A = 8500(1 + .0178/12)^((12)(10))

step 4. A = 8500(1.00148334)^120

step 5. A = $10,154.68.

8 0
3 years ago
Read 2 more answers
Consider f(x)=7x^2+8/x−6. Complete the following statements.
kirill [66]

Answer:

A

Step-by-step explanation:

Iwis

7 0
3 years ago
Find the PERIMETER of the following shape.
zhuklara [117]

Answer:

okok so for the perimater just add ALL the sides

Step-by-step explanation: happy to help

6 0
3 years ago
Read 2 more answers
Raj plotted point L in the coordinate plane below.
navik [9.2K]

Answer:

(c) The x and y coordinates are switched

Step-by-step explanation:

Given

Point = (4,-1.5)

See attachment

Required

Determine the error in the plot

The plot on the attached graph is represented with: (-1.5, 4)

This implies that Raj plotted the x coordinate on the y coordinate and vice versa.

Hence: (c) is true

6 0
3 years ago
Read 2 more answers
Please help w number 2 :) A-B
suter [353]
Peter piper picked a pepper
5 0
3 years ago
Other questions:
  • 6=-w/8 please solve for w
    10·1 answer
  • Solve the inequality. 4 + 9x &gt; 8 − 3x
    15·2 answers
  • M (AOC) = 70, m (COE) = 60; B is bisect AOC; OD is bissertriz Coe; calculate the extent of BOD.
    6·1 answer
  • Find all the real square roots of 64/169
    8·2 answers
  • The area of circle Z is 64 t ft?.
    6·1 answer
  • a TV has an original price of $549 and do the new price after the given percent of change.20% degrees the new price is ​
    10·2 answers
  • Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thank you.
    9·1 answer
  • What is the best definition for “sample” as used in statistics? *
    12·1 answer
  • Which expression is equivalent to (x+2)(3x-3)?
    9·1 answer
  • (۷) =. What is g(۷) ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!