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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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MaRussiya [10]
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6500 rounded to the nearest thousand is __. Enter your answer without commas
gtnhenbr [62]

Answer:

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Step-by-step explanation:

If the hundreds place is higher than 5, then add 1 to the thousands place.

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3 years ago
On Tuesday, Marissa was $45 short of her fundraising goal. The next day, she was $5 over her goal write an equation to show how
scoray [572]

Answer: Hello daema, let's let x be the goal and c be the collection per day.

x - 45 + c = x + 5 is the answer so now let's talk about how we did that.

So she wants to get to x which is the goal. But right now she has 45 less than what her goal is. So that would look like this x - 45 now she has to get c or the collection per day to get to her goal. So now it looks like this x - 45 + c. Now that c has to be at least x which is her goal, it now will look like this x - 45 + c = x. But we're not done, the question said that now she 5$ over her goal, or x. So we have to add the + 5 onto the end so now it looks like this x - 45 + c = x + 5. To solve the equation "if you have to" it would be x = 50$ per day.

4 0
3 years ago
Find the missing side of the angle.<br> Need help, thank you!!
Alex787 [66]

Answer:

sqrt239

Step-by-step explanation:

Using the pythagoream thereom, we know that a^2+b^2=c^2.

so x^2+17=256

That makes x the square root of 239.

4 0
3 years ago
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