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4 years ago

Galium is a metal that can melt in your hand at 302.93 k. what is the temperature in celcius ?

Mathematics

2 answers:

Simora [160]4 years ago

7 0

Answer:

Step-by-step explanation:

dem82 [27]4 years ago

3 0

Answer:

29.93 ℃

Step-by-step explanation:

Temperature (K) = ℃ + 273

302.93 K = ℃ + 273

302.93 - 273 = 29.93℃

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If anybody could help with this question I would appreciate it so much!!

elena-14-01-66 [18.8K]

Answer:

d=7

Step-by-step explanation:

3 0

3 years ago

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Find the area of rectangle qrst if the area of rectangle defg is 108 cm2 and the scale factor is 3/4.

Levart [38]

Considering the scale as qrst being 3/4 of defg

108x3 = 324

324/4 = 81

Area is 81 cm^2

3 0

3 years ago

EXPLAIN why we placed the value of x= 4/3( the minimum value) into the equ of gradient(dy/dx) [in the answer, marking scheme att

aliina [53]

$y=x(x-2)^2$
$\implies y'=(x-2)^2+2x(x-2)=3x^2-8x+4=(3x-2)(x-2)=0$
$\implies x=\dfrac23,x=2$

are the critical points, and judging by the picture alone, you must have $b=\dfrac23$ and $a=2$ . (You might want to verify with the derivative test in case that's expected.)

Then the shaded region has area

$\displaystyle\int_0^2x(x-2)^2\,\mathrm dx=\dfrac43$

I'll leave the details to you.

Now, for part (iv), you're asked to find the minimum of $\dfrac{\mathrm dy}{\mathrm dx}=y'$ , which entails first finding the second derivative:

$y'=3x^2-8x+4$
$\implies y''=6x-8$

setting equal to 0 and finding the critical point:

$6x-8=0\implies x=\dfrac86=\dfrac43$

This is to say the minimum value of $\dfrac{\mathrm dy}{\mathrm dx}$ *occurs when $x=\dfrac43$ *, but this is not necessarily the same as saying that $\dfrac43$ is the actual minimum value.

The minimum value of $\dfrac{\mathrm dy}{\mathrm dx}$ is obtained by evaluating the derivative at this critical point:

$m=\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=4/3}=3\left(\dfrac43\right)^2-8\left(\dfrac43\right)+4=-\dfrac43$

4 0

4 years ago

When playing roulette at a casino, a gambler is trying to decide whether to bet $5 on the number 25 or to bet $5 that the outco

USPshnik [31]

Answer:

a) -$3.03; b) The $5 on the number 25

Step-by-step explanation:

To find the expected value, multiply each probability by its value and then add them together.

The probability of making a profit of $20 is 3/38; this gives us

3/38(20) = 60/38

The probability of losing $5 is 35/38; this gives us

35/38(-5) = -175/38

Together, this gives us

60/38-175/38 = -115/38 ≈ $-3.03

b) Since the expected value for the $5 bet on a single number is $-0.53, and the expected value for the $5 on either 00, 0 or 1 is $-3.03, the better bet is on the number 25. The expected value loses less money with this option.

8 0

3 years ago

Your health insurance premium is $4211 annually. If your employer pays 80% and you are paid monthly, how much is deducted from e

kakasveta [241]

<span>So if your annual monthly premium is $4211, to know how much you need to pay monthly so that would be: </span><span>$4211/12 = $350.92/month. Since your employer will be paying 80% of the amount, you will be paying the 20% of the amount monthly, so that would be .2(350.92) = $70.18/month</span>

5 0

3 years ago

Read 2 more answers