3 years ago

50 points plus brainiest if answer correctly!!

Mathematics

1 answer:

Elenna [48]3 years ago

3 0

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The formula C= 5/9(F-32) is used to convert the temperature in degrees Fahrenheit (F) to the temperature in degrees Celsius (C).

GuDViN [60]

Answer:

45 degrees Celsius

Step-by-step explanation:

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3 years ago

What is the value of x in the equation 4x + 1.3 = -7.9

forsale [732]

Answer:

x = - 2.3

Step-by-step explanation:

4x + 1.3 = -7.9
4x = -7.9 - 1.3
4x = -9.2
x = -9.2/4
x = - 2.3

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(-x^2+3x-4)-(2x^2+x-1)

stepan [7]

Answer:

3x2 + 2x - 63x2 + 2x - 6

Step-by-step explanation:

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3 years ago

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The length s(t)s(t)s, (, t, )of the side of the base of a square prism is decreasing at a rate of 777 kilometers per minute and

gavmur [86]

Answer:

$\frac{dA_{s}}{dt} = -148\,\frac{km^{2}}{min}$

Step-by-step explanation:

The surface area of the square prism is obtained by using the following formula:

$A_{s} (t) = 4\cdot l(t)\cdot h(t) + 2\cdot [l(t)]^{2}$

The rate of change of the surface area can be found by deriving the function with respect to time:

$\frac{dA_{s}}{dt} = 4\cdot [h(t)\cdot \frac{dl}{dt} + l(t)\cdot \frac{dh}{dt}] + 2\cdot l(t)\cdot \frac{dl}{dt}$

Known variables are summarized below:

$h(t) = 9\,km$

$l(t) = 4\,km$

$\frac{dh}{dt} = 10\,\frac{km}{min}$

$\frac{dl}{dt} = -7\,\frac{km}{min}$

The rate of change is:

$\frac{dA_{s}}{dt} = 4\cdot [(9\,km)\cdot (-7\,\frac{km}{min} )+(4\,km)\cdot (10\,\frac{km}{min} )] + 2\cdot (4\,km)\cdot (-7\,\frac{km}{min} )$

$\frac{dA_{s}}{dt} = -148\,\frac{km^{2}}{min}$

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3 years ago

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What is the least common multiple of six and four

KIM [24]

Answer:

12 hello how are you doing

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3 years ago

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