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4 years ago

I need help, I don’t understand how to do this

Mathematics

2 answers:

Leni [432]4 years ago

3 0

Answer:

8 and -8

Step-by-step explanation:

an absolute value will always be positive. So if you see a number like this l-8l, it will be positive

den301095 [7]4 years ago

3 0

Another way to say absolute value is like saying distance from 0. So if you want numbers with an absolute value of 8. The answer would be 8 and -8.

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A cone has a diameter of 10 inches. If its height is twice its radius, about what is the volume of the cone in cubic inches? Use

GuDViN [60]

Answer:

C) 261.67 inch³

Step-by-step explanation:

radius = 10/2 = 5

height = 10

Volume = ⅓×pi×r²×h

= ⅓×3.14×5²×10

= 261.6666666667

6 0

3 years ago

How do i solve for x? *you have to show work*

eduard

1) Factor the equation first:

$2e^{2x} + 4xe^{2x} = 0$
$e^{2x}(2 + 4x) = 0$

So either $e^{2x} = 0$ or $2 + 4x = 0$ . But $e^{2x} = 0$ can never equal 0! So, we only need to solve for the second equation:

$2 + 4x = 0$
$\bf x = {-\frac{1}{2}}$

2) First, single out the term with the exponent:

$2 + 3(4^{2x - 1}) = 43$
$3(4^{2x - 1}) = 41$
$4^{2x - 1} = \frac{41}{3}$

Now, taking the log base 4 of each side gives us

$2x - 1 = \log_4 \frac{41}{3}$

and we can now solve for x:

$2x - 1 = \log_4 \frac{41}{3}$
$2x = 1 + \log_4 \frac{41}{3}$
$2x = \log_4 4 + \log_4 \frac{41}{3}$
$2x = \log_4 \frac{164}{3}$
$x = \frac{1}{2} \log_4 \frac{164}{3}$
$x = \log_4 \sqrt \frac{164}{3}$
$\bf x = \log_4 2 \sqrt \frac{41}{3}$

8 0

3 years ago

saul85 [17]

Answer:

Step-by-step explanation:

7 0

4 years ago

Let x1, . . . , xn be a random sample from a population with the poisson(λ) distribution. find the mle of λ.

Dmitriy789 [7]

Assuming the n data values are independent draws from a Poisson distributed population with parameter λ , the MLE of λ from the sample is the sample mean, i.e.
$MLE (\lambda)=\frac{1}{n}\sum_{i=1}^nx_i$

Numerous proves are available online.

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3 years ago

What is the answer to the area question

const2013 [10]

864 I think and permitwr is 22

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3 years ago