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3 years ago

L 1.3.5 Quiz: Using Models

Mathematics

1 answer:

Archy [21]3 years ago

3 0

Answer:

2 windows

Step-by-step explanation:

Scale is the ratio of model and the actual architecture.

Scale defines if the size of model is x , then what will be the size of actual body.

Scale is only used to determine Size of architecture.

Scale does affect the design or shape both model and architecture.

Shape or design for model and actual remains similar.

Example if any model triangle has three sides , then its no. of side will not change with the ratio of scale. Its size will only change.

____________________________________________

Since in the model, tree house has two windows which pertains to the design of the house, it is not concerned with size of house. Hence, number windows has nothing to do with scale and hence

number of window in the real tree house will two as well.

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2 years ago

Find the number of students who like both peanut butter and jam. *

netineya [11]

Answer:

4 students

Step-by-step explanation:

As shown in the diagram, let U=[The total number of students questioned]

$\implies n(U) = 10$

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$\implies n(A) =18$

B=[Those who liked jam ]

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Also 6 liked neither peanut butter nor jam.

From the diagram we can write the mathematical equation as follow and solve for x

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3 years ago

Find the vertex of this parabola:<br> y = -x2 - 4x - 2

VikaD [51]

<h3>Hello!</h3>

$===============================$

In order to find the vertex of a parabola, we use the following formula:

$\bold{\displaystyle\frac{-b}{2a} }}$

Remember, a parabola looks like so:

$\tt{y=ax^2+bx+c}$

Now we know what a and b stand for.

In this case, b is -4, and a is -1:

$\hookrightarrow\sf{\displaystyle\frac{-(-4)}{2(-1)}$

Simplify:

$\hookrightarrow\sf{\displaystyle\frac{4}{-2} }}$

Divide:

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$===================================$

<h3>Notes:</h3>

Hope everything is clear.
Let me know if you have any questions!
Enjoy your day!
Always remember: Knowledge is power!

<h3>Answered by:</h3>

$\mathbb{DiAmOnD}\\{\boxed{An~Emotional~And~Creative~Helper}}}}$

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3 years ago

Calculate the area of the following shape, expressing your answer in mm2

sergey [27]

Answer:

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=1/2 (0.02cm) × 0.04cm

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= 0.02mm

${0.02}^{2}$

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3 years ago