1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrej [43]
3 years ago
5

What is the solution set of -|x| = -8?

Mathematics
1 answer:
n200080 [17]3 years ago
6 0
Your answer is C 8 and -8
You might be interested in
3x+4/7-5x-4/7=3/7<br> A- (2)<br> B (-2)<br> C (4/3)<br> D (-4/7)
oksano4ka [1.4K]
That  one is realy hard
5 0
3 years ago
How many milliliters are in 30 liters? <br><br> 300<br> 3,000<br> 30,000<br> 300,000
Alborosie

Answer:

30000 Milliliters

Step-by-step explanation:

multiply the volume value by 1000

30 x 1000 = 30000

Brainliest if this was helpful. Thanks!

3 0
3 years ago
Show that if X is a geometric random variable with parameter p, then
Lubov Fominskaja [6]

Answer:

\sum_{k=1}^{\infty} \frac{p(1-p)^{k-1}}{k}=-\frac{p ln p}{1-p}

Step-by-step explanation:

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

P(X=x)=(1-p)^{x-1} p

Let X the random variable that measures the number os trials until the first success, we know that X follows this distribution:

X\sim Geo (1-p)

In order to find the expected value E(1/X) we need to find this sum:

E(X)=\sum_{k=1}^{\infty} \frac{p(1-p)^{k-1}}{k}

Lets consider the following series:

\sum_{k=1}^{\infty} b^{k-1}

And let's assume that this series is a power series with b a number between (0,1). If we apply integration of this series we have this:

\int_{0}^b \sum_{k=1}^{\infty} r^{k-1}=\sum_{k=1}^{\infty} \int_{0}^b r^{k-1} dt=\sum_{k=1}^{\infty} \frac{b^k}{k}   (a)

On the last step we assume that 0\leq r\leq b and \sum_{k=1}^{\infty} r^{k-1}=\frac{1}{1-r}, then the integral on the left part of equation (a) would be 1. And we have:

\int_{0}^b \frac{1}{1-r}dr=-ln(1-b)

And for the next step we have:

\sum_{k=1}^{\infty} \frac{b^{k-1}}{k}=\frac{1}{b}\sum_{k=1}^{\infty}\frac{b^k}{k}=-\frac{ln(1-b)}{b}

And with this we have the requiered proof.

And since b=1-p we have that:

\sum_{k=1}^{\infty} \frac{p(1-p)^{k-1}}{k}=-\frac{p ln p}{1-p}

4 0
3 years ago
A table contains the ordered pairs (3, 42.25) and (5, 50.75). If the relationship in the table is linear, explain how to find th
Basile [38]

Answer:

The linear relationship ( the linear equation ):

y = m x + b ( the slope-intercept form )

m = ( 50.75 - 42.25 ) / ( 5 - 3 ) = 8.50 / 2 = 4.25 ( the slope )

42.25 = 4.25 * 3 + b

b = 42.25 - 12.75

b = 29.50

y = 4.25 * x + 29.50

Answer:

The initial value is : ( 0,  29.50 ) or 29.50.

5 0
3 years ago
Read 2 more answers
Which phrase represents' the sum of 11 and a number
denis23 [38]

Answer:

11 + n

Step-by-step explanation:

sum means addition, so u need a + sign

n is usually the variable used for 'a number'

so 11 and (+) a number (n) = 11+ n

hope this helps!

5 0
2 years ago
Other questions:
  • An investment is currently worth 1.2 x 10^7 dollars. Twenty years ago, the investment was worth 9.6 x 10^5 dollars.
    10·2 answers
  • Heather sampled the ages of 50 randomly selected people that frequented a store and obtained a mean of 24. She constructed a 95%
    9·1 answer
  • Joni has a box that has a mass of 67 dekagrams. She converts this to centigrams. Her work is shown below.
    10·1 answer
  • You can solve equations using____________, which undo each other.
    6·2 answers
  • Rod is a drummer who purchases his drumsticks online. When practicing with the newest pair, he notices they feel heavier than us
    9·1 answer
  • (PLZ FAST- 30 PTS)Which expressions are equivalent?
    5·2 answers
  • Please FIND THE VALUE OF x.
    14·1 answer
  • I completely forgot how to do this, so if you can answer and give an explanation, I’d really appreciate it!
    8·1 answer
  • ) Write 5 39/100 as a decimal number
    12·2 answers
  • The width of a rectangle is L + 6 and the length is L. Find the perimeter
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!