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3 years ago

Please ANswer ASAP & show all work. If you put an incomplete or absurd answer I WILL report you.

Mathematics

1 answer:

bogdanovich [222]3 years ago

7 0

Answer:

1 ft²

Step-by-step explanation:

The scale factor = 1 : 20

The area is the product of two dimensions, so the area of the model part to actual part is:

1 ² : 20 ² =
1 : 400

If the actual plane has wing area of 400 ft², then the model will have wing area:

400 ft² / 400 = 1 ft²

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Savatey [412]

Answer:

210

Step-by-step explanation:

find the area of each rectangle and add it to the area of both the triangles

9(6) +5(9) +9(7)+(6(8))/2 + (6(8))/2

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3 years ago

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Question 3. Y=(1/5)^xSketch the graph of each of the exponential functions and label three points on each graph.

STatiana [176]

Given exponential function:

$y\text{ = (}\frac{1}{5})^x$

Let us obtain three points including the y-intercept so that we can plot the function y = f(x)

When x =0:

$\begin{gathered} y\text{ = (}\frac{1}{5})^0 \\ =\text{ 1} \end{gathered}$

when x =1:

$\begin{gathered} y\text{ = (}\frac{1}{5})^1 \\ =\text{ }\frac{1}{5} \end{gathered}$

when x =2:

$\begin{gathered} y\text{ = (}\frac{1}{5})^2 \\ =\text{ }\frac{1}{25} \end{gathered}$

We have the points : (0, 1), (1, 1/5), and (2, 1/25)

Using these points, let us provide a sketch of the plot of y =f(x). We have the plot as shown below:

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1 year ago

The length of a rectangle is 5 m less than twice the width, and the area of the rectangle is 52 m^2. Find the dimensions of the

lys-0071 [83]

length is 8m

Width is 6.5m

Explanation:

Let, width = b

So, length = 2b-5

area = 52 $m^{2}$

We know,

area of rectangle = length X width

So, $52m^{2}$ = $(2b-5) X b$

On solving the above equation, we get

Width, b = 6.5m

length, l = 8m

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3 years ago

What is the equation of the line ? and how do i know ?

insens350 [35]

Y=Mx +c
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3 years ago

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Determine if the expression -8c-9c^4d^2−8c−9c

Leto [7]

Answer:

$-8c-9c^4d^2-8c-9c$ is a polynomial of type binomial and has a degree 6.

Step-by-step explanation:

Given the polynomial expression

$-8c-9c^4d^2-8c-9c$

Group like terms

$=-9c^4d^2-8c-8c-9c$

Add similar elements: -8c-8c-9c=-25c

$=-9c^4d^2-25c$

Thus, the polynomial is in two variables and contains two, unlike terms. Therefore, it is a 'binomial' with two, unlike terms.

Each term has a degree equal to the sum of the exponents on the variables.

The degree of the polynomial is the greatest of those.

25c has a degree 1

$-9c^4d^2$ has a degree 6. (adding the exponents of two variables 'c' and 'd').

Thus,

$-8c-9c^4d^2-8c-9c$ is a polynomial of type binomial and has a degree 6.

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3 years ago