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Tatiana [17]
2 years ago
9

9. Which expression is equivalent to -28x2 + 35x?

Mathematics
1 answer:
Alecsey [184]2 years ago
5 0
Is there answer choices? The equation is already simplified, so I’m assuming there’s answer choices.
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Emanuel was charged \$32$32dollar sign, 32 for a 14\dfrac29 \text{ km}14 9 2 ​ km14, start fraction, 2, divided by, 9, end fract
mash [69]

Answer:

The cost per kilometer was $2.25

Step-by-step explanation:

<u><em>The correct question is</em></u>

Emanuel was charged $32 for a 14 2/9 km

What was the cost per kilometer?

To find out the cost per kilometer (unit rate) divide the total cost by the total kilometers

<em>Convert mixed number to an improper fraction</em>

14\frac{2}{9}\ km=\frac{14*9+2}{9}=\frac{128}{9}\ km

<em>Find the unit rate</em>

\frac{32}{\frac{128}{9}}=\frac{32*9}{128}=\$2.25\ per\ kilometer

therefore

The cost per kilometer was $2.25

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2 years ago
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An ellipse is graphed. Which statements about the ellipse are true? Select three options. The center is at (0, 0). The major axi
KiRa [710]

Answer:

The vertices are 4 units to the left and right of the center.

The foci are units to the left and right of the center on the major axis.  

The directrices are vertical lines.

Step-by-step explanation:

The statements 2, 3 and 4 are correct. The ellipse graph shows that the foci are units to the left and vertices are 4 units to the left. The center os the ellipse is not at the origin (0,0) so the statement 1 is not correct. Ellipse is an oval shape with 2 other points known as foci. The foci of the ellipse are at left and right axis marked from the center.

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If four people share 100 baseball cards and each person must receive a different positive whole number of cards, what is the gre
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One person recieves 1. Second person receives 2. Third person receives 3. The amount of cards left over is 94. So the fourth person receives the highest amount possible with everyone in positive numbers of cards.
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Three friends are buying seashells at the gift shop on the beach. Melanie buys 2 seashells for​ $0.80. Rosi buys 5 seashells for
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Answer:

Step-by-step explanation:

6 0
1 year ago
Triangles H J K and L M N are congruent. Triangle H J K is rotated about point H to form triangle L N M. Triangle L M N is highe
Alex

Answer:

a rotation about point H

Step-by-step explanation:

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2 years ago
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