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lisov135 [29]
4 years ago
12

Help!!!Geometry chapter three

Mathematics
1 answer:
leonid [27]4 years ago
7 0

Answer: 50

Step-by-step explanation:

3(50)-14=136

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What is the area of a regular octagon with a side length of 5 m and a distance from the center to the vertex of 6.5 m ?
horsena [70]
Answer is 120
Use the Pythagorean theorem to find the distance from the center to the side, 6.5²-(5/2)²=6², so the distance is 6. The perimeter is 5×8=40 then use ½(6)(40)=120
7 0
4 years ago
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Tom was using wire of the following thicknesses .33 mm, .275 mm, .25 mm, and .3 mm for some electrical work. Order the wire from
prohojiy [21]
Compare the tenths digit of all numbers:

.33
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.25
.3

The lower tenths digits will go on the bottom, and the higher tenths digits will go on the top:

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Compare the hundredths digit of all numbers:

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From thickest to thinnest, the order is .33 mm, .3 mm, .275 mm, and .25 mm.

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3 years ago
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5.
Ksenya-84 [330]

Answer:

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5 0
3 years ago
The measure of ∠CBD is 45% of the measure of ∠ABC. Find the value of x.
Bogdan [553]

Answer:

x = 49.5°

Step-by-step explanation:

∠ABC = 90°

∠CBD = 45%∠ABC

∠CBD = 0.45(90)

∠CBD = 40.5°

x = ∠ABC - ∠CBD

x = 90 - 40.5

<u>x = 49.5°</u>

4 0
3 years ago
Solve for v.<br> 7(v-3)+7v = 21<br> Simplify your answer as much as possible.
Andru [333]

Answer:

v = 3

Step-by-step explanation:

7(v - 3) + 7v = 21

distribute the 7 into the parentheses

7v -21 +7v = 21

combine like terms

14v - 21 = 21

add 21 on both sides

14v + 21 - 21 = 21 + 21 which equals 14v = 42

divide both sides by 14 to isolate v

14v/14 = 42/14

v = 3

hope this helps :)

4 0
3 years ago
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