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Oliga [24]
3 years ago
7

Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in. To the nearest tenth of a percent, wha

t is the percent error in Annie's estimate? Enter your answer in the box.
Mathematics
1 answer:
Mila [183]3 years ago
5 0
The error is about 3.5%
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igor_vitrenko [27]
correct answer is "NONE" NOT $40. hOPE THIS HELPS!
3 0
3 years ago
Help me i stuk on tis queston wat is 3+1 ?
Sidana [21]

Answer:

Its 4 thats the answer

Step-by-step explanation:

let me know if this helps

8 0
2 years ago
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What is the volume of a cylinder with base radius 2 and height 9?​
astraxan [27]
113.04 is the volume

V = pi x r^2 x h

3.14 x 2^2 x 9 = 113.04
8 0
3 years ago
Can someone please help me on this question <br> I will give brainliest
xz_007 [3.2K]

Answer:

A) 3 in

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Geometry</u>

  • Surface Area of a Sphere: SA = 4πr²
  • Diameter: d = 2r

Step-by-step explanation:

<u>Step 1: Define</u>

SA = 23 in²

<u>Step 2: Find </u><em><u>r</u></em>

  1. Substitute [SAS]:                    23 in² = 4πr²
  2. Isolate <em>r </em>term:                         23 in²/(4π) = r²
  3. Isolate <em>r</em>:                                  √[23 in²/(4π)] = r
  4. Rewrite:                                   r = √[23 in²/(4π)]
  5. Evaluate:                                 r = 1.35288 in

<u>Step 3: Find </u><em><u>d</u></em>

  1. Substitute [D]:                    d = 2(1.35288 in)
  2. Multiply:                              d = 2.70576 in
  3. Round:                                d ≈ 3 in
4 0
2 years ago
It took a car 4 days to travel 2686 miles. What was this car's average speed, in miles per hour? (round to the nearest mile per
mixer [17]

Answer:

28

Step-by-step explanation:

Well we know that in a day there are 24 hrs so in 4 days there will be 96 hrs

so the car travelled 2686 miles in 96 hours

2686/96= 27.9791666667

So the car's average speed is about 28

3 0
2 years ago
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