3 years ago

Please help me on these

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

3 0

1. x = 25 inches
2. Triangle c

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A pound of chocolate costs 6 dollars. Diane buys P pounds. Write an equation to represent the total cost c that Diane pays.

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Answer:

$C=6P$

Step-by-step explanation:

Because the cost (c) depends on the pounds (p), we have to multiple the weight by 6, because it is $6 per pound.

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3 years ago

PLease help i will give brainest

insens350 [35]

Answer:

pretty sure it's positive correlation

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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

Stuck on #3 Need help on formula

hram777 [196]

6x4= 24

24 possible outcomes

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3 years ago

Slope of 5,2 and 6,2

maria [59]

Answer:

The slope is 0

Step-by-step explanation:

(2-2) divided by (6-5) equals to 0 which is the Slope

$\frac{2-2}{6-2} \\\\$

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3 years ago