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JulsSmile [24]
3 years ago
11

David made a class banner out of a large rectangular piece of paper. He cut a

Mathematics
1 answer:
Irina18 [472]3 years ago
6 0

Answer:

100 in²

Step-by-step explanation:

The area of the banner is equal to the area of the initial rectangle minus the area of the cutout triangle.

The rectangle has a height of 8 inches and width of 14 inches, so its area is:

A = (8 in) (14 in) = 112 in²

The triangle has a base of 8 inches and a height of 3 inches, so its area is:

A = ½ (8 in) (3 in) = 12 in²

So the area of the banner is 112 in² − 12 in² = 100 in².

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He has 3/5 of his cards left because he had 62/105 of his cards and that simplified is 3/5
6 0
3 years ago
How do you use protractors, its been printed on the paper, this is gonna be a little confusing for me sorry if I give this app a
Luda [366]

Answer:

  see below

Step-by-step explanation:

A protractor is usually a transparent measuring device laid intended to be laid over an angle to be measured. The centerpoint of the protractor's scale is made to coincide with the angle's vertex, and the baseline of the protractor is aligned with one of the angle's rays. The appropriate scale is used to read the angle where the other ray crosses the scale. You usually have to visually determine if the angle is acute or obtuse, so you can choose the correct scale to read.

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If you're drawing an angle, first draw one ray and locate the vertex on it. Then do the steps above as you would for measurement. Make a mark on your paper corresponding to the desired angle measure, and connect the vertex to that mark to create the other ray of the angle.

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<em>Comment on a printed protractor</em>

A protractor will only give accurate measurements if its geometry is perfect. Some printers will scale a figure differently in horizontal and vertical directions, so will make the protractor scale be elliptical instead of circular. That will give wrong readings.

7 0
3 years ago
Please can someone help me ill mark brainliest
kramer
#5 is 4, #6 is graph A, and #7 is graph B. I hope this helped, Please mark as brainliest because I am 3 more away from the next level.
7 0
3 years ago
−8x+5−2x−4+5x− when x=2
hodyreva [135]
<span>−8x+5−2x−4+5x
= -5x + 1
so when x = 2 then
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= -5(2) + 1
= -9

hope it helps
3 0
3 years ago
Read 2 more answers
The stack on the left is made up of 15 pennies in the stack on the right is also made about 50 pennies if the volume of the stac
masha68 [24]
15x = 375 mm cubed
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X=25
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50x=y
X=25
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y=1250 mm cubed this is the volume of the stack of 50
8 0
3 years ago
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