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3 years ago

5. A store owner has 12.58 kg of candy. If she puts the candy

Mathematics

1 answer:

Solnce55 [7]3 years ago

4 0

Answer:

1.4 kg of candy

Step-by-step explanation:

Divide the amount of candy by the number of jars:

12.58/9

= approx. 1.4

So, each jar will have approximately 1.4 kg of candy

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33 square units

Step-by-step explanation:

4 triangles - 1/2 * 3 * 4 = 24

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24 + 9 = 33

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3 years ago

A number n increased by 4 is -19

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Answer:

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3 years ago

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3 years ago

During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the

mars1129 [50]

Answer:

Yes, it will reach or exceed 141 degree F

Step-by-step explanation:

Given equation that shows the temperature T in degrees Fahrenheit x minutes after the machine is put into operation is,

$T = 0.005x^2 + 0.45x + 125$

Suppose T = 141°F,

$\implies 141 = 0.005x^2 + 0.45x + 125$

$\implies 0.005x^2 + 0.45x + 125 - 141 =0$

$\implies 0.005x^2 + 0.45x - 16=0$

Since, a quadratic equation $ax^2 + bx + c =0$ has,

Real roots,

If Discriminant, $D = b^2 - 4ac \geq 0$

Imaginary roots,

If D < 0,

Since, $0.45^2 - 4\times 0.005\times -16 = 0.2025 + 32 > 0$

Thus, roots of -0.005x² + 0.45x + 125 are real.

Hence, the temperature can reach or exceed 141 degree F.

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3 years ago