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Charra [1.4K]
3 years ago
6

Triangle ABC is a right triangle. If AC=12 and BC=13 find AB.

Mathematics
2 answers:
stepladder [879]3 years ago
7 0

Answer:

5

Step-by-step explanation:

by pythagoras theorem

(hyp)^2=(leg1)^2+(leg2)^2

the hypotenuse is the side opposite to 90 degree (BC=13)

AC=leg 1 = 12

13^2=12^2 + leg 2^2

169=144+ leg 2^2

leg2 ^2=169-144

leg2^2= 25

leg2= root 25

leg2=5

ArbitrLikvidat [17]3 years ago
5 0

Answer:

5

Step-by-step explanation:

The first thing to think about when doing a problem is to look in the angles. BAC is a right angle, but that does not help. The next thing to notice is BA looks roughly about 1/2 the size of AC. That answer makes the most sense so the answer is 5.

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What is the common ratio of the geometric sequence below?<br><br> 625, 125, 25, 5, 1, ...
larisa [96]

Answer: 1/5 or 0.2

Step-by-step explanation: each number is just dividing by 5

like 625/5 = 125

125/5 = 25

25/5 =5

5/5 = 1

similarly 1/5 = 0.2 or 20%

4 1
3 years ago
You and your friend each start a car-washing service. You spend $25 $ 25 on supplies and charge $10 $ 10 per car. Your friend sp
photoshop1234 [79]

Answer:

if you wash 13 cars, you will earn 13*10= 130 $

your friend will also learn 130 $ but he only need to wash 130/13= 10 cars

SO the number of the car you have to wash is 13 cars

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
5(-12x+3)+6(10x+7)=9-x+3x+10​
tia_tia [17]

Answer: x = 19

Step-by-step explanation:

5(-12x+3) + 6(10x + 7) = 9 - x + 3x + 10     Distribute on the left side

-60x + 15 + 60x + 42 = 9 + 2x + 10   combine like terms on the left side

   57 = 9 + 2x + 10        Now combine like terms on the right side

57 = 2x + 19        Subtract 19 from both sides

-19           -19

 38 = 2x       Divide both sides by 2

x = 19

8 0
3 years ago
Which expression is equivalent to 30 (1/2 x - 2) + 40(3/4 y-4)
Xelga [282]

Answer:

Step-by-step explanation:

Start by removing the brackets.

Left Brackets

30(1/2 x - 2)

30*1/2 x - 30*2

15x - 60

Right Bracket

40(3/4 y - 4)

40*3/4 y - 4*40

10*3 y - 160

30y - 160

Now put these 2 results together.

15x - 60 + 30y - 160     Combine the like terms.

15x + 30y - 220            That's one answer Others are possible.

5(3x + 6y - 44)

8 0
3 years ago
24h + 3d - 10h + 8d simplified <br> A. 14h + 11d<br> B. 14h + 5h <br> C. 25hd
Tema [17]
The answer is A. 14h + 11d

because if you 3d and 8d it will give you 11d

the take 24h and subtract to 10h it will give you 14h

so when you write it you answer is 14h + 11d

Hope this helps! :)

~Shadow
6 0
3 years ago
Read 2 more answers
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