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Karolina [17]
3 years ago
12

I need the answer for both of these fast please.​

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0
Hey, so using the formula A squared + B squared = c squared, you should be able to work these out.

For example the second one would be 3 squared + 4 squared = c squared. So 9+16=25, and then we would root 25 which gives you 5!

Hope this helps!
Ket [755]3 years ago
3 0

Answer:

1): 15, 2): 5

Step-by-step explanation:

I used the Pythagorean Theorem which is a^{2} + b^{2} = c^{2}.

For 1), the equation is (12*12) + (9*9) = c*c OR 144 + 81 = c*c. I got 225 = c*c. Then I used a calculator to figure out the square root of 225 and I got 15.

For 2), the equation is (4*4) + (3*3) = c*c OR 16 + 9 = c*c. I got 25 = c*c. Then I used the calculator to figure out the square root of 25 and got 5.

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Which of these expressions is equivalent to -2(x-5)
bekas [8.4K]

Answer:-2x+10

Step-by-step explanation:

7 0
3 years ago
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The formula for the volume of a sphere is V=4/3πr³, where V is the volume and r is the radius. Solve the formula for r, and then
3241004551 [841]

Answer:

4.5 inches to the nearest tenth

Step-by-step explanation:

V=4/3πr^3

Divide both sides by 4/3π:

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4 years ago
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4y+4=7z, 36-4y=3x <br> thank you so much!!
iogann1982 [59]
Is it supposed to say 7x rather than Z? If so then


If you make both equations = to 4y you can work out the answer so

4y =7x-4
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Then you put them equal to each other so

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You can then find y by doing
4y = 7x4 - 4
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So the answer is x = 4 and y = 6

8 0
3 years ago
(NEED HELP ASAP) A train covers the 1500 km distance from Amsterdam to Barcelona at an average speed of 90 km/h. If the train le
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1500km divided by 90km = 16.6666667, so therefore it is 16 hours and 36 minutes. add that to 9:30, it arrives at 2:06am on Wednesday.
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3 years ago
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Pls help I dont get and pls dont troll I need help thank youuuu
miss Akunina [59]

Answer:

(I am assuming that you don't need the answer, but just an explanation of what to do.) Let's take the first problem for an example the first thing you are going to do is subtract 12 on both sides and you will get n> -1 so then you will put a open circle on -1 going to the right.

Hope this helps :)

7 0
4 years ago
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