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2 years ago

ANSWER PLS!! HELP! WILL GIVE BRAINLIEST

Mathematics

2 answers:

NeTakaya2 years ago

5 0

For this case we have that the temperature drops steadily at a speed of ${\sf0.8\:\frac{degree}{hours}}$ , that is, every hour drops 0.8 degrees. So, we can propose a rule of three:

1 hour ----------> 0.8 degrees

x ------------------> 4.4 degrees

Where the variable "x" represents the number of hours that must pass for the temperature to decrease by 4.4 degrees.

${\sf{x\:=\:\frac{4.4\:x\:1}{0.8}$

${\sf{x\:=\:5.5$

Thus, for the temperature to decrease by 4.4 degrees, 5.5 hours must pass.

Answer:

5.5 hours

malfutka [58]2 years ago

4 0

Answer:

5.5 hrs

Step-by-step explanation:

1 hr --> -0.8 hrs

? --> -4.4°C

-4.4 / -0.8 = 5.5 hrs

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KonstantinChe [14]

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2 years ago

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uysha [10]

Answer:

The solutions to the quadratic equations will be:

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Step-by-step explanation:

Given the expression

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Apply perfect square formula: (a-b)² = a²-2ab+b²

i.e.

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$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

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also solving

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add 6 to both sides

$x-6+6=-\sqrt{57}+6$

Simplify

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2 years ago

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Step-by-step explanation:

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