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ikadub [295]
2 years ago
10

What is the best estimate of the area of the lake pictured on the grid if each square has a side length of 400 meters?

Mathematics
1 answer:
evablogger [386]2 years ago
7 0

Answer:  4,840,000 square meters

Step-by-step explanation:

Each square has an area of (400m)^2 or 160,000 m^2 each square.

There are 390 squares, so:

(30 squares)*(160,000 m^2/square) = 4,800,000 m^2

4,840,000 square meters comes closest

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30 POINTS! ANSWER ASAP PLEASE!!! WILL THANK ACCOUNT AND ALL ANSWERS!!
Sindrei [870]

Answer:

  16.9 units

Step-by-step explanation:

Sometimes the easiest way to work these problems is to get a little help from technology. The GeoGebra program/app can tell you the length of a "polyline", but it takes an extra segment to complete the perimeter. It shows the perimeter to be ...

  14.87 + 2 = 16.87 ≈ 16.9 . . . units

_____

The distance formula can be used to find the lengths of individual segments. It tells you ...

  d = √((Δx)² +(Δy)²)

where Δx and Δy are the differences between x- and y-coordinates of the segment end points.

If the segments are labeled A, B, C, D, E in order, the distances are ...

  AB = √(5²+1²) = √26 ≈ 5.099

  BC = √(1²+3²) = √10 ≈ 3.162

  CD = Δx = 3

  DE = √(3²+2²) = √13 ≈ 3.606

  EA = Δy = 2

Then the perimeter is ...

  P = AB +BC +CD +DE +EA = 5.099 +3.162 +3 +3.606 +2 = 16.867

  P ≈ 16.9

8 0
3 years ago
PLEASE HELPPP!!!! Emergency or I’ll fail the semester pls!!!!!
djyliett [7]
ST=4
3x-8+x=2x
4x-8=2x
-8=-2x
4=x
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8 0
2 years ago
What is the scale factor of this dilation?<br><br> A 1/5<br><br> B 1/2<br><br> C 1<br><br> D 2
Nana76 [90]
The answer would be B
3 0
2 years ago
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B=3,c=7 Please help Iam struggling
Afina-wow [57]
Please provide more information
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3 years ago
3x+5(2+x)=4x-7 help me out here?
Oksi-84 [34.3K]

Answer:

x = -17/4

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

Distributive Property

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

3x + 5(2 + x) = 4x - 7

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Distributive Property] Distribute 5:                                                                 3x + 10 + 5x = 4x - 7
  2. [Addition] Combine like terms:                                                                        8x + 10 = 4x - 7
  3. [Subtraction Property of Equality] Subtract 4x on both sides:                      4x + 10 = -7
  4. [Subtraction Property of Equality] Subtract 10 on both sides:                       4x = -17
  5. [Division Property of Equality] Divide 4 on both sides:                                  x = -17/4
6 0
3 years ago
Read 2 more answers
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