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il63 [147K]
3 years ago
13

How many diagonals does a trapezoid have?

Mathematics
1 answer:
Rainbow [258]3 years ago
3 0
A trapezoid is made of four sides, two of the sides are diagonal.
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You participate in a dance-a-thon fundraiser. After your parents pledge $15.50 and your neighbor pledges $8.75, you have $66.55.
Nana76 [90]

Answer:

15.50p+8.75n=66.55

Step-by-step explanation:

p=parents

n = neighbors

3 0
3 years ago
Can anyone help me?<br>Please and thank you
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Step-by-step explanation:

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3 years ago
The half-life of a certain radioactive material is 85 days. An initial amount of the material has a mass of 801kg. Write an expo
SOVA2 [1]

Answer:

m(t) = 801 * (1/2)^(t/85)

Step-by-step explanation:

m(t) = 801 * (1/2)^(t/85)

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8 0
3 years ago
② The complement of an<br> angle. is 10 more<br> than 3 times the<br> angle. Find both
Mrac [35]
Let x be the angle. The complement is 3x + 10. The sum of two complementary angles is 90. So,
x + 3x + 10 = 90
4x + 10 = 90
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x = 20
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3(20) + 10 = 70

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4 0
3 years ago
Suppose a railroad rail is 3 kilometers and it expands on a hot day by 18 centimeters in length. Approximately how many meters w
murzikaleks [220]

Answer:

  16.43 meters

Step-by-step explanation:

If the shape of the rise is a triangle, then the center of it is half the total length from the end. We can find the rise (y) using the Pythagorean theorem:

  1500.09² = 1500² +y² . . . . .dimensions in meters

  270.0081 = y²

  y = √270.0081 ≈ 16.43 . . . . meters

About the most it would rise is 16.43 meters.

___

If the shape is an arc of a circle, the height is about 14.2 meters.

7 0
3 years ago
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