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rodikova [14]
3 years ago
14

What is the value of this expression when x=-1 and Y = 2? 4x3y² Mark this and return

Mathematics
1 answer:
atroni [7]3 years ago
8 0

Answer: -48

Step-by-step explanation:

We substitute -1 and 2 into the equation of 4x3y^2

4(-1) * 3(2)^2 =

-4* 12 =

-48

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giving brainlest if explained and showed work please help! i just need it explained so i can understand it!
lawyer [7]

Answer:

2 tablespoons

Step-by-step explanation: he divided the 6 by two to get three so I divided the 4 by two to get 2

6 0
3 years ago
Define a variable and write an inequality to model each situation. A light bulb can be no more than 75 watts to be safely used i
DaniilM [7]
Let the number of watts =w ‘no more than’ means less than or equal to, thus we will use that sign. The inequality can be written as: w<75
3 0
2 years ago
Help!!! I don’t understand how to do this
lidiya [134]

Answer:

  f^{(k)}(x)=\dfrac{17k!(-1)^k}{(x-9)^{k+1}}

Step-by-step explanation:

The question presumes you have access to a computer algebra system. The one I have access to provided the output in the attachment. The list at the bottom is the list of the first four derivatives of f(x).

__

The derivatives alternate signs, so (-1)^k will be a factor.

The numerators start at 17 and increase by increasing factors: 2, 3, 4, indicating k! will be a factor.

The denominators have a degree that is k+1.

Putting these observations together, we can write an expression for the k-th derivative of f(x):

  \boxed{f^{(k)}(x)=\dfrac{17k!(-1)^k}{(x-9)^{k+1}}}

4 0
3 years ago
A random sample of adult female reaction times has a sample mean of x¯=394.3 milliseconds and sample standard deviation of s=84.
s2008m [1.1K]

Answer:

99.7%

Step-by-step explanation:

Given that mean (μ) = 394.3 ms and standard deviation (σ) = 84.6 ms.

The empirical rule states that for a normal distribution:

  1. 68% falls within one standard deviation (μ ± σ)
  2. 95% falls within two standard deviation (μ ± 2σ)
  3. 99.7% falls within three standard deviation (μ ± 3σ)

one standard deviation = 394.3 ± 84.6 = (309.7, 478.9). 68% falls within 309.7 and 478.9 ms

two standard deviation = 394.3 ± 2 × 84.6 = (225.1, 563.5). 95% falls within 225.1 and 563.5 ms

three standard deviation = 394.3 ± 3 × 84.6 = (140.5, 648.1). 99.7% falls within 140.5 and 648.1 ms

8 0
2 years ago
Find the measure of KL
SVETLANKA909090 [29]

Answer:

4.2

Step-by-step explanation:

Because RM and ML are the same, that makes KL and KR congruent. Hope his helps. :)

8 0
2 years ago
Read 2 more answers
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