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3 years ago

Word problems use place value

Mathematics

2 answers:

nadya68 [22]3 years ago

8 0

1. Three-Hundred Forty One Thousand, Eight Hundred Nine.
300,000 + 40,000 + 1,000 + 800 + 9
2. Sixty-Seven Thousand, Eleven
60,000 + 7,000 + 10 + 1
3. Hilary did
4. Craig did
5. B, 2
6. A, 0
So glad I could do this, good luck, and hope you have a good rest of the day! :)

Masja [62]3 years ago

7 0

3. Hillary did
4.Craig did

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4 EZ GEOMETRY QUESTIONS FOR 20 POINTS!

MatroZZZ [7]

Answer:

1. use the formula

$(n-2)180$

$(20 - 2)180\\18 * 180 = 3240$

2. use the formula

$360/n\\360/12\\n = 30$

3. There is only one at 360 degrees

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Dilate a triangle with vertices (0,0), (0,2) and (2,0) using the scale factor k=3. What is the value of the ratio (new to origin

seropon [69]

Answer:

Part a) The ratio of the perimeters is $3$

Part b) The ratio of the areas is $9$

Step-by-step explanation:

Part A) What is the value of the ratio (new to original) of the perimeters?

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z-----> the scale factor

x-----> the perimeter of the new triangle

y-----> the perimeter of the original triangle

$z=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3$

Part B) What is the value of the ratio (new to original) of the areas?

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z-----> the scale factor

x-----> the area of the new triangle

y-----> the area of the original triangle

$z^{2}=\frac{x}{y}$

we have

$z=3$

substitute

$\frac{x}{y}=3^{2}$

$\frac{x}{y}=9}$

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3 years ago

A rectangular prism has dimensions of 2x, 3x, and 5x. Write an expression for the total surface area of the prism.

KIM [24]

Answer:

A = 62x^2

Step-by-step explanation:

This rect. prism has 6 faces, stemming from two each of the areas of the top, the end and the side of the prism.

top surface area: (2x)(3x) = 6x^2

end surface area: (2x)(5x) = 10x^2

side surface area: (3x)(5x) = 15x^2

Total surface area: A = 2(6x^2 + 10x^2 + 15x^2)

or: A = 2(31x^2) = 62x^2

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3 years ago

Simplify the trigonometric expression. Show your work. 1/1+sin theta + 1/1-sin theta

Contact [7]

Hello,

$\dfrac{1}{1+sin(\theta)} + \dfrac{1}{1-sin(\theta)} \\\\
 \dfrac{1-sin(\theta) + 1+sin(\theta)} {1-sin^2(\theta) }}\\\\
= \dfrac{2} {cos^2(\theta)} 
$

8 0

3 years ago