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
Svetach [21]
3 years ago
12

Whoever gets this right gets brainlyess answer and it's worth 8 points :)

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
7 0
You were right because you work backwards. so start with 80 and multiply that by 2 to get 160. Then divide that by 10 to get 16
You might be interested in
WILL MARK BRAINLIEST <br> DUE TOMORROW <br> 9/28/18
agasfer [191]

well tomorrow pasted should i still answer

4 0
3 years ago
Which is NOT a way to state the meaning of the expression x + 2?
lesya692 [45]

2x is not a way to express this. You could use 2 + x or x +2. But 2x is x multiplied by 2. x + 2 is x plus 2.

5 0
3 years ago
Why is the lady’s shadow in the picture not a rigid transformation?
Eva8 [605]

Answer:

The shadow is not the same image as the lady

Step-by-step explanation:

Had it in a test got it right

5 0
3 years ago
If x -9 is a factor of x^2 -5x-36 , what is the other factor ?
faust18 [17]

Answer:

(x + 4) (x - 9)

Step-by-step explanation:

Factor the following:

x^2 - 5 x - 36

The factors of -36 that sum to -5 are 4 and -9. So, x^2 - 5 x - 36 = (x + 4) (x - 9):

Answer: (x + 4) (x - 9)

3 0
2 years ago
Let X represent the time it takes from when someone enters the line for a roller coaster until they exit on the other side. Cons
Yuri [45]

Answer:

a. E(x) = 3.730

b. c = 3.8475

c. 0.4308

Step-by-step explanation:

a.

Given

0 x < 3

F(x) = (x-3)/1.13, 3 < x < 4.13

1 x > 4.13

Calculating E(x)

First, we'll calculate the pdf, f(x).

f(x) is the derivative of F(x)

So, if F(x) = (x-3)/1.13

f(x) = F'(x) = 1/1.13, 3 < x < 4.13

E(x) is the integral of xf(x)

xf(x) = x * 1/1.3 = x/1.3

Integrating x/1.3

E(x) = x²/(2*1.13)

E(x) = x²/2.26 , 3 < x < 4.13

E(x) = (4.13²-3²)/2.16

E(x) = 3.730046296296296

E(x) = 3.730 (approximated)

b.

What is the value c such that P(X < c) = 0.75

First, we'll solve F(c)

F(c) = P(x<c)

F(c) = (c-3)/1.13= 0.75

c - 3 = 1.13 * 0.75

c - 3 = 0.8475

c = 3 + 0.8475

c = 3.8475

c.

What is the probability that X falls within 0.28 minutes of its mean?

Here we'll solve for

P(3.73 - 0.28 < X < 3.73 + 0.28)

= F(3.73 + 0.28) - F(3.73 + 0.28)

= 2*0.28/1.3 = 0.430769

= 0.4308 -- Approximated

5 0
3 years ago
Other questions:
  • Which is the complete factorization of this expression? −144ax − 9bx A) −9x(16a + b) B) −9x(16a + 9b) C) −9x(16a − b) D) 9x(16ax
    11·1 answer
  • Square flower garden in John’s bachyard has an area of 100 square ft. how much fencing will she need to enclose the flower garde
    14·1 answer
  • What is the total cost for an item that costs 26.50 and has a sales tax rate of 6%
    13·1 answer
  • What are the steps to find the lower and upper quartiles of a data set?
    5·1 answer
  • “Jessica has $300 to buy supplies for her painting. 
    15·2 answers
  • BRAINLIST look at the picture for question pls need help
    10·1 answer
  • Explain why this quadrilateral is not a parallelogram.
    8·1 answer
  • HELP WILL MARK YOU BRAINLIEST, PLS I NEED ASAP
    5·1 answer
  • The function f(x) = x2 6x 3 is transformed such that g(x) = f(x − 2). find the vertex of g(x). (−1, −8) (−3, −4) (−1, −6) (−5, −
    10·1 answer
  • PLEASE help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!