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3 years ago

There are thirteen shirts in your closet,

Mathematics

1 answer:

Inessa05 [86]3 years ago

3 0

11 shirts

Step-by-step explanation:

You start off with 13, wear one monday, 12, then another tuesday 11

13-2=11

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A straw is placed inside a rectangular box that is 9 inches by 5 inches by 4 inches, as shown. If the straw fits exactly into th

IrinaK [193]

Answer:

9÷5by4 =965

Step-by-step explanation:

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3 years ago

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A thermometer is taken from an inside room to the outside, where the air temperature is 20° f. after 1 minute the thermometer re

fomenos

The change in the temperature is proportional to the difference in temperatures. Let's call the initial temperature of the room and the thermometer $E_0$ and the current temperature $E(t)$ where $t$ is the elapsed time in minutes. The outside temperature is 20 F.

Newton's Law of Cooling:

$E(t) - 20 = (E_0 - 20) e^{- k t}$

We're given $E(1)=70 \textrm{ and } E(5)=45$

$70-20 = (E_0 - 20) e^{-k}$

$45-20 =(E_0 - 20) e^{-5k}$

Dividing,

$\dfrac{50}{25}=e^{4k}$

$k = \dfrac 1 4 \ln 2$

Now,

$E(t) - 20 = (E_0 - 20) e^{- k t}$

$E_0 = 20 + (E(t) - 20)e^{k t}$

$E_0 = 20 + (E(1) - 20)e^{k}$

$E_0 = 20 + (70 - 20)e^{\ln 2/4}$

$E_0 = 20 + 50 \cdot 2^{1/4} \approx 79.46 \textrm{ degrees F}$

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4 years ago

Which is an equation of the line through (-1, -4) and parallel to the line 3x + 7 = 5

ehidna [41]

Your original equation has no y-variable. It results in x = -2/3 when you solve for x which is a vertical line. Thus, if you want a line parallel to this that goes through point (- 1, - 4), you just set x equal to the x-value in that ordered pair.

Your parallel line is x = - 1.

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3 years ago

The theory that government should not interfere in enconomic affairs is known as

Delicious77 [7]

It's called laissez-faire economics and is essentially what capitalism is built on.

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3 years ago

(50) Points!!!!

notka56 [123]

The general form of the equation of the line shown would be x-y=0

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