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garri49 [273]
3 years ago
10

* PLEASE HELP * -State what the answer is, then please inform me on how to do it. ~Thank you :)

Mathematics
2 answers:
katovenus [111]3 years ago
7 0
So 2 miles per 1/2 hour
therfor 1 mile in 1/4 hour since 1/4 is 1//2 of 1/2

so
1 mile per 1/4 hour
2 mile per 2/4 hour
3 mile per 3/4 hour

basically 2 times 3/2=3 so
1/2 times 3/2=3/4=answer
SVEN [57.7K]3 years ago
5 0
2 \ miles............ \frac{1}{2}h \\3 \ miles............x \\\\ x= \frac{ 3\ \not miles*\frac{1}{2}h}{2 \not miles} \\\\ x= \frac{ \frac{3}{2}h}{2} \\\\ x=\frac{3}{2}h*\frac{1}{2} \\\\ \boxed{x=\frac{3}{4}h} \\\\ x=\frac{3*\not60}{\not4} \\\\ x=3*15 \\\\ \boxed{\boxed{x=45 \ minutes}}
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What is the area of the piece of red paper after the hole for
MakcuM [25]

Answer:

     \large\boxed{\large\boxed{47unit^2}}

Explanation:

The complete question is:

<em>A hole the size of a photograph is cut from a red piece of paper to use in a picture frame.</em>

<em />

<em>On a coordinate plane, 2 squares are shown. The photograph has points (-3, -2), (- 2, 2), (2, 1), and (1, -3). The red paper has points (- 4, 4), (4, 4), (4, -4), and (-4, -4).</em>

<em />

<em>What is the area of the piece of red paper after the hole for the photograph has been cut?</em>

<em />

<h2><em>Solution</em></h2>

<em />

The area of the piece of redpaper after the hole has been cut is equal to the area of the big square less the area of the small rectangle.

<u>1. Area of the big rectangle</u>

Vertices:

  • <em>(- 4, 4) </em>
  • <em>(4, 4)</em>
  • <em>(4, -4)</em>
  • <em>(-4, -4)</em>

<em />

The side length is the distance between two consecutive vertices:

The two points (-4,4) and (4,4) has the same y-coordinate, thus the length is just the absolute value of the difference of the x-coordinates:

  • 4-(-4)=4+4=8

The area of this square is    (8unit)^2=64unit^2

<u>2. Area of the small square</u>

Vertices:

  • <em>(-3, -2)</em>
  • <em>(- 2, 2) </em>
  • <em>(2, 1)</em>
  • <em>(1, -3)</em>

<em />

To find the side length use the distance formula for two consecutive points, for instance (2,1) and (-2,2):

      d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\ \\d=\sqrt{(2-(-2))^2+(2-1)^2}=\sqrt{4^2+1^2}=\sqrt{17}

The area is:

          (\sqrt{17}unit)^2}=17unit^2

<u>3. Area of the piece of red paper after the holw for the photograph has been cut:</u>

<u />

Find the difference:

<u />

         64unit^2-17unit^2=47unit^2

<em />

7 0
3 years ago
Read 2 more answers
These polygons are similar. Which similarity statement is correct?
vodomira [7]

Answer:

A B C D is similar to F G H E

Step-by-step explanation:


Here we can see that

 A= F= 110 degrees

B = G= 70 degrees

C= H = 110 degrees

D= E = 70 degrees

Therefore

A B C D is similar to F G H E

so the option 3rd  correct.



5 0
3 years ago
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A triangular pane of glass has a height of 30 inches and an area of 270 square inches. what is the length of the base pane
Tems11 [23]
The equation for the area of a triangle is A= b*h /2. So, plug in your known variables, and you get 270in^2= b*30 /2. First you multiply by 2 to cancel out the division for 2, which gets you 540= b* 30. To get "b" by itself, divide both sides by 30, giving you <u>18=b</u>.

To check this, plug in your new known variable, as 270= 18* 30 /2. This will equal as 270=270, confirming 18in as the correct measurement.
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2 years ago
Does anyone wanna be friends lol?
USPshnik [31]

Answer:

hahaha me

Step-by-step explanation:

...actually how old are you though lol

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