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3 years ago

Logan’s town is building a volleyball court based on a scale drawing that is

Mathematics

1 answer:

liraira [26]3 years ago

3 0

Answer:

$Area = 162\ m^2$

Step-by-step explanation:

Given

$Scale = 1:45$

$Scale\ Drawing = 20cm\ by\ 40cm$

Required

Determine the actual area

First, we need to determine the actual measurements:

$Length = 45 * 20cm$

$Length = 900\ cm$

Convert to metres

$Length = 900 * 0.01\ m$

$Length = 9\ m$

$Width = 45 * 40cm$

$Width = 1800\ cm$

Convert to metres

$Width = 1800 * 0.01\ m$

$Width = 18\ m$

The area can then be calculated as

$Area = Length * Width$

$Area = 9\ m * 18\ m$

$Area = 162\ m^2$

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Given: f(x) = 3x-7, g(x)=2x2 -3x+1, h(x)=4x+1, k(x) =-x2+3 Find: k(x) +g(x)

Afina-wow [57]

Answer:

k(x) + g(x) = x² - 3x + 4

General Formulas and Concepts:

Alg I

Combining like terms

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 7

g(x) = 2x² - 3x + 1

h(x) = 4x + 1

k(x) = -x² + 3

Step 2: Find k(x) + g(x)

Substitute: k(x) + g(x) = -x² + 3 + 2x² - 3x + 1
Combine like terms (x²): k(x) + g(x) = x² + 3 - 3x + 1
Combine like terms (Z): k(x) + g(x) = x² - 3x + 4

7 0

3 years ago

Using substitution x+3y=3 3y-2x=12

frez [133]

Step-by-step explanation:

Given :-

x + 3y = 3
3y - 2x = 12

And we need to solve the equation using Substituting method . So on taking the first equation ,

$\rm\implies x + 3y = 3 \\\\\rm\implies x = 3 - 3y$

Put this value in (ii) :-

$\rm\implies 3y - 2x = 12 \\\\\rm\implies 3y - 2(3-3y)=12\\\\\rm\implies 3y -6-6y = 12 \\\\\rm\implies -3y = 18 \\\\\rm\implies y = -6$

Put this Value in (I) :-

$\\\\\rm\implies x = 3-3*-6 \\\\\rm\implies x = 3+18 \\\\\rm\implies x = 21$

Hence the Value of x is 21 and y is (-6) .

4 0

3 years ago

Read 2 more answers

45.6/109.2 = x/115 Is x, 48.02?

MAXImum [283]

Yes correct x is 48.02 here is why.

simplify 45.6/109.2 to 0.417582

multiply both sides by 115

simplify 0.417582 x 115 to 48.021978

switch sides

Answer: x = 48.021978

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3 years ago

Fred earns dollars. Chad earns 45% more than Fred which expression represents the amount of money in dollars that chad earns

Genrish500 [490]

Answer:

$0.45x

Step-by-step explanation:

Fred earns dollars. Let Fred earns $x.

Chad earns 45% more than Fred.

We need to find the expression for Chad.

Chad amount = 45% of x

$=\dfrac{45}{100}x\\\\=0.45x$

So, Chad earns $0.45x.

7 0

3 years ago

Pls help

valina [46]

Answer:

Domain: {1, 2, 3, 4}

Step-by-step explanation:

The domain of the graph (input values) is the number of pizzas which are plotted on the x-axis while the range (output values) is the cost of pizza, plotted on the y-axis (vertical axis)

The domain therefore would consists of each x-coordinate that represent each point on the graph, which are {1, 2, 3, 4}

6 0

3 years ago