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ahrayia [7]
3 years ago
6

If AC = 15 centimeters, and BC = 12 centimeters, which does AB equal

Mathematics
1 answer:
Marat540 [252]3 years ago
4 0

The pythagorean theorem says that a² + b² = c²

You're given the b and the c so substitute the values in: a² + 12² = 15²

a² + 144 = 225; subtract 144 from both sides

a² = 81; square root each side

a = 9, or choice C

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Which sequence could be described by the explicit definition: t_n=2^n+1t n = 2 n + 1
yuradex [85]

Answer:

2. 27

3. Option C. 3, 5, 9, 17, 33, ...

Step-by-step explanation:

2. The sequence is defined by the explicit function t_{n} = 2^{n}  - n

Therefore, the 5th term i.e. t_{5} of the sequence.

t_{5} = 2^{5}  - 5 = 32 - 5 = 27 (Answer)

3. The explicit definition is t_{n} = 2^{n}  + 1

Hence, t_{1} = 2^{1}  + 1 = 3

t_{2} = 2^{2}  + 1 = 5

t_{3} = 2^{3}  + 1 = 9

t_{4} = 2^{4}  + 1 = 17

Therefore, the option C is the right sequence. (Answer)

4 0
3 years ago
Read 2 more answers
Solve the following equation for m.<br> F=mv^2 / r
aleksklad [387]

Answer:

Step-by-step explanation:

F = \frac{mv^2}{r}

mv² = Fr

m = \frac{Fr}{v^2}

8 0
1 year ago
Help please<br> ......................
seropon [69]
1. 35x + 0.15y
=3500x + 15y [multiplying the equation by 100]
= 700x + 3y [dividing the equation by 5]

2. Let x be an even integer
x + (x+2) + (x+2+2)
x+x+2+x+4
3x+6

3. 1/5*(r+7) - 9s
(r+7)/5 - 9s

4. x=cows
y= goats + sheep

x= (y+140)/2
7 0
2 years ago
Read 2 more answers
on a scale drawing a tree is six and three forths the scale factor is one twentyths find the height of the actual tree
liq [111]
Here, scale factor = 1 : 20
On scale, Tree's height = 6 3/4 = 27/4

Height of Actual Tree = 27/4 * 20 = 27 * 5 = 135

In short, Your Answer would be 135

Hope this helps!
6 0
3 years ago
Please help me this is very important due today
alexdok [17]

Answer:

I'd say D) a worried young man

4 0
3 years ago
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