3 years ago

Are these three side lengths a right triangle? 5, 5, 5√s yes or no?

Mathematics

2 answers:

11111nata11111 [884]3 years ago

5 0

Answer:

Step-by-step explanation:

zmey [24]3 years ago

5 0

Answer:

No, it makes an isosceles triangle that has angles in two 70°'s, and 20°'s

Step-by-step explanation:

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Three packages of pens and one box of paper cost $26. Two packages of pens and 7 boxes of paper cost $49. How much does one box

algol13

Answer:

5 dollars

Step-by-step explanation:

Let's call the price of a package of pens n, and the cost of a box of paper r.

3n+r=26

2n+7r=49

Multiply the first equation by 7:

21n+7r=182

Subtract the second equation from the first:

19n=133

Divide both sides by 19 to isolate n:

n=7

Plug this back in to find the value of a box of paper:

3(7)+r=26

21+r=26

r=5

Hope this helps!

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3 years ago

Question 16

kogti [31]

Answer:

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Step-by-step explanation:

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3 years ago

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leva [86]

Answer: Negative 1 and one-fifth

Step-by-step explanation:

Add the two numbers lol

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3 0

3 years ago

Find the correct sum of the polynomials (6x3 − 8x − 5) + (3x3 + 6x + 2).

Advocard [28]

Answer:

$9x^3-2x-3$

Step-by-step explanation:

The question is

$(6x^3-8x-5)+(3x^3+6x+2)\\$

collect like terms

$(6x^3-8x-5)+(3x^3+6x+2)\\\\\\6x^3+3x^3-8x+6x-5+2\\\\\\9x^3-2x-3$

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3 years ago

2/3 * 1/2+ 3/4 /1+ 1/6

In-s [12.5K]

Answer:

2/3 * 1/2+ 3/4 /1+ 1/6 =1.25

1.25

Step-by-step explanation:

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3 years ago