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katen-ka-za [31]
3 years ago
7

What times what is 198

Mathematics
1 answer:
melamori03 [73]3 years ago
4 0

Answer: 2*99

Step-by-step explanation:

To see if the answer is correct divide 198/99 and you'll get 2. To find answers like these you have to divide in order to get the answer that is correct.

Hope This Helps!

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What is the derivative of ln e^x / e^x -1
il63 [147K]
I assume you mean

\dfrac{\mathrm d}{\mathrm dx}\ln\dfrac{e^x}{e^x-1}

The chain rule says this is equivalent to

\dfrac{\dfrac{\mathrm d}{\mathrm dx}\dfrac{e^x}{e^x-1}}{\dfrac{e^x}{e^x-1}}

The numerator can be worked out via the quotient rule:

\dfrac{\mathrm d}{\mathrm dx}\dfrac{e^x}{e^x-1}=\dfrac{e^x(e^x-1)-e^x\times e^x}{(e^x-1)^2}=-\dfrac{e^x}{(e^x-1)^2}

We're left with

\dfrac{-\dfrac{e^x}{(e^x-1)^2}}{\dfrac{e^x}{e^x-1}}=-\dfrac1{e^x-1}=\dfrac1{1-e^x}
7 0
3 years ago
Of the 800 participants in a marathon 220 are running to raise money for a cause. How many participants out of 100 are running f
nadezda [96]

Answer:

27.5 /100 are running for a cause

Step-by-step explanation:

We know that 220/800 are running for a cause

Divide the top and bottom by 8 to get the fraction out of 100

220 /8 =27.5

800/8 = 100

27.5 /100 are running for a cause

7 0
3 years ago
Gurl this is 6th grade math and I’m still dumb Enough to not know it
Novay_Z [31]

Answer:

false, false, true

Step-by-step explanation:

0 times anything is always 0. 7 with an exponent of 3 is never 7*3, it's 7*7*7. for the last one, 2*2*2*2 is 16 and so is 4*4. lol im pretty dumb too tbh

5 0
3 years ago
2w^2-20w-48<br> Factor completely
grigory [225]

Answer: Factor the polynomial.

2(w−12)(w+2)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
a certain game consists of rolling a single fair die and pays off as follows: $5 for a 6, $2 for a 5, $1 for a 4, and no payoff
lorasvet [3.4K]
E(winnings) = (5 x (1/6)) + (2 x (1/6) + (1 x (1/6)) = 5/6 + 2/6 + 1/6 = 8/6 = $1.33
7 0
4 years ago
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