Answer:
Step-by-step explanation:
I think you are inventing symbols, which turns your question into a guessing game. You are better off describing the math symbols in words. Or post a picture.
I’m guessing that the math expression is ∛27 + √64² - 2 = 3 + 64 - 2 = 65
Answer:
A≈552.92cm²
Step-by-step explanation:
mark me as brainliest!!!
§ALEX§
Answer:
The expected number of keys she will try before she opens the door is 4.5.
Step-by-step explanation:
A woman has eight keys on a key ring, one of which fits the door she wants to unlock.
Each of them is equally as likely to be the one to work, which means that this situation is represented by an uniform distribution with lower bound 
and upper bound 
.
Find the expected number of keys she will try before she opens the door.
The expected value of the uniform distribution is given by:
Considering 
, as is the case in this exercise:
The expected number of keys she will try before she opens the door is 4.5.
Answer: Second option: (4,0) and (-9,0)
f(x)=x^2+5x-36
The x-intercepts of the graph of a function f(x) are the values of the variable x that makes f(x)=y equal to zero. To find these values we only have to equal f(x)=y to zero:
f(x)=y=0
x^2+5x-36=0
Factoring the polynomial:
(x+9)(x-4)=0
Using that if a b=0, then: a=0 or b=0
with a=x+9 and b=x-4
x+9=0 or x-4=0
Solving for x:
x+9-9=0-9 or x-4+4=0+4
x=-9 or x=4
Then the x-intercepts are the poitns (x,y)=(x,0):
(4,0) and (-9,0)
Answer:
Down below
Step-by-step explanation:
I can not exactly show a graph, but the equation will be y=1/4x-1, since:
Points: (4,0) (0, -1)
Slope: (0+1)/(4-0)= 1/4
Slope intercept form: y=mx+d
