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NikAS [45]
3 years ago
10

Which expression is equivalent to 21 × 7?

Mathematics
1 answer:
belka [17]3 years ago
6 0

I wanna say the answer is A

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Well 6*7 = 42 .....//...
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Pls help 15 points to best answer. A ladder leans against a building, making a 70 degree angle of elevation with the ground. The
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The correct answer is 2) 14.2
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Exercice 2: Un remorqueur tire un bateau à la vitesse de 10 noeuds. La tension du câble est de 2500N, Le câble est parallèle à l
Elza [17]

Répondre:

1 285 watts

Explication étape par étape:

La puissance est exprimée selon la formule;

power = travail effectué / temps

Puissance = Force * (distance / temps)

Depuis Vitesse = distance / temps

Puissance = Force * vitesse

Donné

Force = 2500N

Vitesse (en m / s) = 0,514 m / s

Obligatoire

Puissance

Remplacez la formule donnée;

Puissance = 2500 * 0,514

Puissance = 1,285Watts

Par conséquent, la puissance correspondante requise est de 1285 watts

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Words to match expression 3 (4 x 12)
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Three times the product of four and twelve.
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