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sweet-ann [11.9K]
3 years ago
14

200 meters

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
7 0

Answer:

520 m

Step-by-step explanation:

Perimeter is the distance around a shape. To find the perimeter, you add up all the sides.

200 + 60 + 60 + 200 = 520 m

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7. Is the simplified form of 2 square root of 3 ⋅ 2 square root of 6 rational? (1 point)
Lynna [10]

Answer:

Yes

Step-by-step explanation:

I've done this before.

6 0
3 years ago
Suppose x is any positive number.
zimovet [89]

Answer:

<u>Step 1:  Determine why circle 1 is similar to circle 2</u>

The reason why circle 1 is similar to circle 2 is that they both expand at the same rate.  While x grows larger, both circle 1 and circle 2 grow at a proportional rate.  Circle 2 grows is 5 times bigger than circle 1 given any value 5.

<u>When x = 3:</u>  circle 1 = 6 and circle 2 = 30

<u>When x = 10:</u>  circle 1 = 20 and circle 2 = 100

4 0
4 years ago
Which is the solution to the system of equations?
Svetlanka [38]

Answer:

D. (-1, 3/2)

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>

  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define System</u>

4x + 2y = -1

3x + 4y = 3

<u>Step 2: Rewrite System</u>

4x + 2y = -1

  1. [Multiplication Property of Equality] Multiply -2 on both sides:                     -2(4x + 2y) = 2
  2. [Distributive Property] Distribute -2 on both sides:                                        -8x - 4y = 2

<u>Step 3: Redefine Systems</u>

-8x - 4y = 2

3x + 4y = 3

<u>Step 4: Solve for </u><em><u>x</u></em>

  1. Combine equations:                                                                                         -5x = 5
  2. [Division Property of Equality] Divide -5 on both sides:                                x = -1

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x</em> [Original Equation]:                                                                  3(-1) + 4y = 3
  2. Multiply:                                                                                                             -3 + 4y = 3
  3. [Addition Property of Equality] Add 3 on both sides:                                     4y = 6
  4. [Division Property of Equality] Divide 4 on both sides:                                  y = 3/2
8 0
3 years ago
Write a comparison using to show the relationship between 2/3 and 5/6
Stels [109]
2/3 is equal to 4/6 When multiplied by 2/2. You can do this because 2/2 is still equal to one so it doesn’t change the value, just how it looks
7 0
3 years ago
Read 2 more answers
A gas company president for a particular city is interested in the proportion of homes heated by gas. Historically, the proporti
Darina [25.2K]

Answer:

p-value (0.0208) is less than alpha = 0.05 reject H0.

Step-by-step explanation:

we have the following data:

sample size = n = 75

x, the number to evaluate is 45

the sample proportion would be: x / n = 45/75

p * = 0.6

Now, the null and alternative hypotheses are:

H0: P = 0.72

Ha: P no 72

two tailed test

statistic tes = z = (p * - p) / [(p * (1-p) / n)] ^ (1/2)

replacing we have:

z = (0.6 - 0.72) / [(0.72 * (1-0.72) / 75)] ^ (1/2)

z = -2.31

p-vaule = 2 * p (z <-2.31)

using z table, we get:

p-vaule = 2 * (0.0104)

p-vaule = 0.0208

Therefore, p-value (0.0208) is less than alpha = 0.05 reject H0.

4 0
4 years ago
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