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alekssr [168]
2 years ago
15

What is the area of an equilateral triangle with sides of length 20?

Mathematics
1 answer:
Anarel [89]2 years ago
6 0

Answer:

173.2

Step-by-step explanation:

area of equilateral triangle = √3 / 4 l^2

so area =173.2

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Help if your gonna answer plz explain it
Katyanochek1 [597]

So you wanna find the area of each surface:

For the large square surface in the top you do 12*15=180 and there are two large squares faces so you multiply 180 by 2 which equals 360 then you find the small rectangle faces: 5*15=75 and multiply by 2 Bc there are 2 faces like that so it would be 75*2=150 then for the last faces you do 12*5= 60 *2= 120 at the end I add all of the faces up, 360+150+120=630

6 0
3 years ago
If x is a positive integer and y is a negative integer than x + y is a rational number.
romanna [79]

Answer:

Yes

Step-by-step explanation:

An integer is a whole number so if x is positive and y is negative then the equation would just be x plus negative y. But x+-y is an odd equation so the simplified version is x-y so it is a rational number, since a rational number is a number that can be rewritten as a simple fraction.

5 0
3 years ago
13. How many drinks are in a 2 oz martini made with 100 proof alcohol
pentagon [3]

Answer:

4 drinks.

Step-by-step explanation:

-One drink is defined as having one-half ounce of pure ethyl alcohol; each of the following is considered "one drink." *1 oz of 100 proof distilled spirits at 50% alcohol.

Drinks=\frac{2oz}{0.5oz}\\\\=4

Hence, 2 oz martine has 4 drinks

7 0
3 years ago
In matrix A = (aij) 3 x 3 , where aij= i+j then find the value of a33<br>​
Tanya [424]

Answer: -9

Step-by-step explanation:

3 0
2 years ago
WHATS THE ANSWER<br> mSRW = ___°
Ivahew [28]
The answer is 95 degrees because it is a vertical angle. This is actually a lot easier than it looks. Hope this helped.
6 0
3 years ago
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