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german
3 years ago
11

Find the LCM of 24 and 40.

Mathematics
2 answers:
Setler79 [48]3 years ago
8 0
The answer for this question is D
rosijanka [135]3 years ago
8 0
Answer is D. 120

24, 48, 72, 96, 120,...
40, 80, 120,...
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(12 + 5) + 32 × (10 − 5) =
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Zoe's pizza cost $12.99. She gave a tip of $2.00.
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James piglet weighs 7 lb his hand weighs 74 oz how many more ounces does the piglet weigh than the hen​
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38 more ounces.

Step-by-step explanation:

First, convert the 7 lbs. to ounces by multiplying 7 by 16. You do this because 1 pound equals 16 ounces. You get 112 ounces. Then subtract the hand's weight (74 oz.) from the piglet's weight (112 oz.).  You get 38 ounces which is your answer.

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7 0
3 years ago
Find a quadratic polynomial with integer coefficients which has x = 2/9, ± SQRT23/9 as its real zeros.
melomori [17]

Answer:

The quadratic polynomial with integer coefficients is y = 81\cdot x^{2}-36\cdot x -19.

Step-by-step explanation:

Statement is incorrectly written. Correct form is described below:

<em>Find a quadratic polynomial with integer coefficients which has the following real zeros: </em>x = \frac{2}{9}\pm \frac{\sqrt{23}}{9}<em>. </em>

Let be r_{1} = \frac{2}{9}+\frac{\sqrt{23}}{9} and r_{2} = \frac{2}{9}-\frac{\sqrt{23}}{9} roots of the quadratic function. By Algebra we know that:

y = (x-r_{1})\cdot (x-r_{2}) = x^{2}-(r_{1}+r_{2})\cdot x +r_{1}\cdot r_{2} (1)

Then, the quadratic polynomial is:

y = x^{2}-\frac{4}{9}\cdot x -\frac{19}{81}

y = 81\cdot x^{2}-36\cdot x -19

The quadratic polynomial with integer coefficients is y = 81\cdot x^{2}-36\cdot x -19.

5 0
2 years ago
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