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denis-greek [22]
3 years ago
12

F(1)=4 f(n)=f(n−1)⋅(−0.5) ​ Find an explicit formula for f(n)

Mathematics
1 answer:
boyakko [2]3 years ago
8 0
The answer is n=0. Mathematics
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A trapezoid has an area of 30m^2. if all of its side lengths are tripled, what will its new area be​
Norma-Jean [14]

Answer:

270

Step-by-step explanation:

Because we do not know what the side lengths are, as long as they multiply to 30m^2, it's fine

For this question, let's just say the base is 5, and the height is 6. If we triple 5, we get 15, and if we triple 6, we get 18. 15*18=270

Now what if, the sides are not 5 and 6. Will the area still be the same? Let's find out.

10*3=30 so we can say for this answer, the base is 3, and the height is 10.

10 tripled is 30, and 3 tripled is 9. 30*9=270

So as we look at these 2 answers. we can conclude that the new area, no matter the side lengths, will be 270

Hope this helpes!

5 0
4 years ago
Y-3x=3 and x-2y=4 using elimination method​
solniwko [45]

Answer:

x = -2, y = -3

Step-by-step explanation:

y - 3x = 3

x - 2y = 4

-3x + y = 3

x - 2y = 4

-6x + 2y = 6

x - 2y = 4

Add the equations.

-5x = 10

x = -2

Substitute -2 for x in the first original equation and solve for y.

y - 3x = 3

y - 3(-2) = 3

y + 6 = 3

y = -3

Answer: x = -2, y = -3

3 0
4 years ago
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If the cos 30° = square root 3 over 2, then the sin 60° = _____.
kari74 [83]
Using the special angles sin 60° is also root 3 over 2
3 0
3 years ago
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How many lines of symmetry does this regular polygon have<br><br> A.0<br> B.1<br> C.2<br> D.5
REY [17]

Answer:

c

Step-by-step explanation:

the top pair and the middle pair

7 0
4 years ago
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Which fact is not used to prove that abc is similar to dbe
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Its used in all simlar instances
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3 years ago
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