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Rom4ik [11]
2 years ago
13

A teacher orders school supplies by the pound.

Mathematics
1 answer:
Svet_ta [14]2 years ago
3 0

Answer: 10

Step-by-step explanation:

I did the math, also not to be rude but stop using so many 'enter' commands

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Which of the following sets could be the sides of a right triangle?
coldgirl [10]

Answer: Choice B) {3, 5, sqrt(34)}

=====================================

Explanation:

We can only have a right triangle if and only if a^2+b^2 = c^2 is a true equation. The 'c' is the longest side, aka hypotenuse. The legs 'a' and 'b' can be in any order you want.

-----------

For choice A,

a = 2

b = 3

c = sqrt(10)

So,

a^2+b^2 = 2^2+3^2 = 4+9 = 13

but

c^2 = (sqrt(10))^2 = 10

which is not equal to 13 from above. Cross choice A off the list.

-----------

Checking choice B

a = 3

b = 5

c = sqrt(34)

Square each equation

a^2 = 3^2 = 9

b^2 = 5^2 = 25

c^2 = (sqrt(34))^2 = 34

We can see that

a^2+b^2 = 9+25 = 34

which is exactly equal to c^2 above. This confirms the answer.

-----------

Let's check choice C

a = 5, b = 8, c = 12

a^2 = 25, b^2 = 64, c^2 = 144

So,

a^2+b^2 = c^2

25+64 = 144

89 = 144

which is a false equation allowing us to cross choice C off the list.

7 0
3 years ago
Someone please help me will give BRAILIEST!!!!
Semenov [28]
That is dependent because it is changing.independent stays the same
7 0
3 years ago
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PLEASE PLEASE PLEASE HELP MEE!!!!!!!!!!!!!!!!
ivanzaharov [21]

Answer:

It is C

Step-by-step explanation:

5 0
3 years ago
A number x rounded to 1 significant figure is 40. What is the error interval for x.
Viktor [21]

Answer:sorry i need points for my test

Step-by-step explanation:

5 0
3 years ago
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$5,000 is invested at 3% interest. How much money must be invested at 5% interest so that the total interest from the two invest
Nataly [62]
3% interest on 5,000 = 150

275 (the total amount wanted) - 150 (from initial investment)= 125

x (5%) =125
x (0.05)= 125
x/0.05)= 125/0.05
x=2500

you need to invest 2500 at 5% to get the additional 125

125 plus 150= 275


7 0
3 years ago
Read 2 more answers
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