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SVETLANKA909090 [29]
3 years ago
14

ABC is a right triangle with legs measuring 5 centimeters and 12 centimeters. which of the following is the measure of the trian

gle's hypotenuse
Mathematics
1 answer:
Elanso [62]3 years ago
7 0

Answer:

13

Step-by-step explanation:

sqroot of 144+25=√169=13

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Solve for a<br> 4(a + 3) = 12 + 4a<br> M. No solution<br> N. 12<br> 0. All Real Numbers <br> P. 4
shepuryov [24]

Answer:

O. All Real Numbers

Step-by-step explanation:

4(a+3)=12+4a

1) Distribute 4(a+3):

4a+12=12+4a

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4 years ago
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If a shirt costs 45 dollars, it's marked down to 30% off, what is the amount of the discount?
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Answer:

$31.50

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3 years ago
Explain what the following statement means: Polynomials are closed under the operations of addition and subtraction. Provide one
kirza4 [7]
1. Polynomials are closed under the operations of addition and substraction mean that:

If we add two polynomials, the result is still a polynomial (so still in the set of polynomials)

Also, If we subtract 2 polynomials, the result is a polynomial.

2. Example: given the polynomials :

M(x)= 3x^{2}+5x-1 and N(x)=-6 x^{4}+9 x^{3}+ x^{2} -2x-1

Addition example: 

M(x)+N(x)=(3x^{2}+5x-1)+(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)=

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Subtraction example: 

N(x)-M(x)=(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)-(3x^{2}+5x-1)

=-6 x^{4}+9 x^{3}+ x^{2} -2x-1-3x^{2}-5x+1=
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So both M(x)+N(x) and N(x)-M(x) are polynomials
7 0
4 years ago
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