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Alona [7]
3 years ago
12

Does anyone know how to answer this question I'm having a lot of trouble with it?

Mathematics
1 answer:
Helen [10]3 years ago
5 0

Answer:

h = \frac{2A}{(b+c)}

Step-by-step explanation:

Formula for the area of a trapezoid is,

Area (A) = \frac{1}{2}(b+c)h

Here b and c are the bases and 'h' is the height of the trapezoid.

2A = 2[\frac{1}{2}(b+c)h]

2A = (b + c)h

\frac{2A}{(b+c)}=h

Therefore, formula for the height of the trapezoid will be,

h = \frac{2A}{(b+c)}

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Probability of someone either owning a dog or being male.<br>​
andrey2020 [161]

Answer:

c. 60.278%

Step-by-step explanation:

There is a 27.778% probability that someone owns a dog.

There is a 45% probability that someone is a male.

However, these two are not mutually exclusive.  12.5% both own a dog and are male.  If we simply add 27.778% and 45%, we'll be double counting the overlap.  To avoid this, we subtract 12.5%.

27.778% + 45% − 12.5% = 60.278%

6 0
3 years ago
Choose the expression that has 5 as an exponent, n as a base, and 7 as a coefficient ​
kow [346]

Answer:

Step-by-step explanation:

7n^5

5 0
3 years ago
If a heptagon has an area of 105 in2, what is the measure of one side ?
kumpel [21]

Answer:

5.38 inches

Step-by-step explanation:

The formula for Area of an Heptagon

= A=7/4a²cot(180°/7)

Area = 105in²

Side a = ?

The formula for Side a

= √4A ×tan (180°/7)/7

= √4 × 105 × tan (180°/7) /7

= 5.37536 inches

Approximately = 5.38 inches.

4 0
3 years ago
The height of a stack of 12 pennies is 18.24 millimeters. What is the thickness of each penny.
Helga [31]
I’m not great at math so I could easily be wrong, but

I divided the 18.24 millimeters by 12 pennies and got 1.52

So if the pennies are all the same size, each penny should 1.52 millimeters.

To show work:

18.24/12=1.52
4 0
3 years ago
????‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎
tatiyna

Answer:

1 and 3

Step-by-step explanation:

Part a: 1 and 3

part b: x = −22

<u><em>Please mark as brainliest </em></u>

Have a great day, be safe and healthy  

Thank u  

XD

8 0
3 years ago
Read 2 more answers
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