ME AJUDEM PFV!!O valor da expressão (NA FOTO)simplificada é:
a)12
b)13
c)14
d)16
e) 10
Answers
D) 16.
Espero que esto ayude hermano.
Related Questions
HELP PLEASE. DUE MIDNIGHT
Answers
Answer:
(-1, -5)
(0, 3)
(1, 11)
(2, 19)
(3, 27)
The numbers that are bolded are the answers for the empty boxes in the y row.
Step-by-step explanation:
To find the answer, just plug each number in the x row to the equation: y = 8x + 3
Example:
y = 8x + 3
8(-1) + 3
-8 + 3
y = -5
y = 8x + 3
8(0) + 3
0 + 3
y = 3
y = 8x + 3
8(1) + 3
8 + 3
y = 11
Consider the following information about travelers on vacation: 40% check work email, 30% use a cell phone to stay connected to work, 35% bring a laptop with them, 16% both check work email and use a cell phone to stay connected, and 42.8% neither check work email nor use a cell phone to stay connected nor bring a laptop. In addition, 88 out of every 100 who bring a laptop also check work email, and 70 out of every 100 who use a cell phone to stay connected also bring a laptop.
a. What is the probability that a randomly selected traveler who checks work email also uses a cell phone to stay connected?
b. What is the probability that someone who brings a laptop on vacation also uses a cell phone to stay connected?
c. If the randomly selected traveler checked work email and brought a laptop, what is the probability that he/she uses a cell phone to stay connected?
Answers
Answer:
a. 0.4
b. 0.6
c. 0.6493
Step-by-step explanation:
p(checking work email) = p(A) = 0.40
p(staying connected with cell phone) = p(B) = 0.30
p(having laptop) = p(c) = 0.35
p(checking work mail and staying connected with cell phone) = p(AnB) = 0.16
p(neither A,B or C) = p(AuBuC)
= 1-42.8%
= 0.572
p(A|C) = 88% = 0.88
p(C|B) = 70% = 0.7
a. What is the probability that a randomly selected traveler who checks work email also uses a cell phone to stay connected?
p(B|A) = p(AnB)/p(A)
= 0.16/0.4
= 0.4
b. What is the probability that someone who brings a laptop on vacation also uses a cell phone to stay connected?
p(B|C) = P(C|B)p(B)/p(C)
= 0.7x0.3/0.35
= 0.6
c. If the randomly selected traveler checked work email and brought a laptop, what is the probability that he/she uses a cell phone to stay connected?
p(A|BnC)
= P(BnAnC)/p(AnC)
= p(AnC) = p(A|C).p(C)
= 0.88x0.35
= 0.308
p(AnBnC) = p(AuBuC)-p(a)-p(b)+ p(AnB)+p(AnC)+p(BnC)
p(BnC) = 0.7x0.3
= 0.21
p(AnBnC) = 0.572-0.4-0.3-0.35+0.16+0.308+0.21
= 0.2
p(A|BnC) = 0.2/0.308
= 0.6493
Answer:
which ever one you want its an opinion answer.
Step-by-step explanation:
Christine is selling tickets at a museum. She knows that she has sold at least 40 tickets. The adult tickets
cost 14 dollars and the children’s tickets cost 12 dollars. If she knows she has sold no more than $720 worth
of tickets, what are the possible combinations?
Answers
Answer:
Adult tickets cost $80, children ticket cost $40
Step-by-step explanation:
Given data
let the number of adults be x
and the number of children be y
so
x+y= 40-------------1
The adult tickets
cost 14 dollars and the children’s tickets cost 12 dollars.
14x+ 12y= 720-------2
solve 1 and 2
x+y= 40
14x+ 12y= 720
from 1
x= 40-y
put this in 2 in place of x
14(40-y)+12y= 720
560-14y+12y= 720
collect like terms
-2y= 720-560
-2y= 160
y= -160/2
y= -80
put y= 80 in 1
x+80= 40
x= 40-80
x= -40
Hence Adult tickets cost $80, children ticket cost $40
all ratios equivalent to 5:1.
Answers
Answer:
10:2, 15:3, 20:4, etc.
Step-by-step explanation:
Well just keep going, they all simplify back to 5:1
The required equivalent ratios are,
[tex]10:2\\15:3\\20:4\\[/tex]
Equivalent Ratios:Equivalent ratios are the ratios that are the same when we compare them. Two or more ratios can be compared with each other to check whether they are equivalent or not.
For example, 1:2 and 2:4 are equivalent ratios.
The given ratio is,
[tex]5:1[/tex]
Now, as we know that we can convert the given ratio into fractions.
[tex]\frac{5}{1}[/tex]
Now, for finding the equivalent ratios multiply the same constant in both the numerator and denominator.
So, the required ratios are,
[tex]\frac{5\times2}{1\times 2} =\frac{10}{2}=10:2\\ \frac{5\times3}{1\times 3} =\frac{15}{3}=15:3\\\frac{5\times4}{1\times 4} =\frac{20}{4}=20:4\\[/tex]
And so, on.
Learn more about the topic Equivalent Ratios:
https://brainly.com/question/25465874
sketch the graph of 5x+7y=35, include the intercepts
Answers
Slope intercept form: y= −5 7 x+5
The graphing points would be (0,5)(7,0)
Answer:
Graph the line using the slope and y-intercept, or two points.
slope is 5 over 7
y-intercepts (0,5)
Step-by-step explanation:
PLEASE HELP FUE NOW Marcie knows that the last number to her locker combination is a perfect square. Which of the following numbers might be the last number Marcie uses to open her locker?
8
ОО
36
24
2
Answers
Answer:
2! Cause the hint is that all of the options are her locker conbination! (I think it is)
Step-by-step explanation:
Answer:36
Step-by-step explanation:
6•6 is 36 perfect square
2.) (3x2 – 7x - 8) - (4x2 – 5x + 4)
I want the answer
Answers
Answer:
x^2 - 2x - 12
Step-by-step explanation:
Answer:
-4x^2 -2x -6
Step-by-step explanation:
PLEASE ANWSER FAST IM TAKING A TEST!!
20 points!!!!
Answers
Answer:
the correct awnser is A
Step-by-step explanation:
HAVE A GOOD DAY!!!!!!
Answer:
Answer is A
Step-by-step explanation:
Yep me out please where can I found the value of x in the triangle at the right?
Answers
What is the absolute value of -3.75
Answers
Answer:
the absolute value of -3.75 is 3.75
Drag each tile to the correct box
Consider the graph of the function () = ?
Match each transformation of function to feature of the transformed function
asymptoteoly = 2
function decreases as x increases
terceptar )
interceptat (0,4
10) - (+ 2)
Answers
Answer:
g(x) = 2f(x) -------> y-intercept at (0,2)
h(x) = f(x)+2 -------> asymptote of y=2
j(x) = f(x+2) -------> y-intercept at (0,4)
m(x) = function decreases as x increases
From the graph that's given, the correct matching of the functions will be:
g(x) = 2f(x) --- y-intercept at (0,2)h(x) = f(x)+2 ---- asymptote of y=2j(x) = f(x+2) ---- y-intercept at (0,4)m(x) = function decreases as x increasesWhat is a function?It should be noted that a function simply means a relation between the inputs and the outputs.
A function from a set X to a set Y is vital in assigning to each element X exactly an element of Y.
Learn more about functions on:
https://brainly.com/question/10439235
23)
B
E
с
D
ntific
Ic
If ABCD is a square, what is mZAEB?
ght
A)
30°
ing
33
ols
B)
45°
60°
D)
90°
Answers
Answer:
90 degrees
Step-by-step explanation:
Step 1: State what is known
Notice that the 2 lines cut the square in half and create 4 congruant triangles. We know a full circle is 360 degrees and the intersection is a perfect circle formed by 4 angles. We can find the angle AEB by dividing 360 by 4 which gives you 90 degrees
Use the discriminant to determine the number of real solutions to the quadratic equation.
81d^2=18d+1=0
What is the number of real solutions?
Select the correct answer below:
0
1
2
Answers
The answer is 1
Use the discramnt formula
[tex] {b {}^{2} - 4ac } [/tex]
Where a is 81, B is 18, and c is 1
We get
[tex]18 {}^{2} - 4(81)(1)[/tex]
We then get 324-324=0
Which equal 0. Since the discramnt produce 0, the number of solution is one and repeated.
Which angle in Figure A'B'C'D' is equal to ZCDA?
O-ZD'A'B'
O ZA'B'C'
O ZB'C'D'
O ZC D'A'
Answers
Help&EXPLAIN
Don’t use for points or will be reported and I’ll take the points back
Answers
Answer:
x = 90
Step-by-step explanation:
A line will ALWAYS equal 180 degrees, so we know that one angle is <90 and we have to find x, which is the other angle of the line.
So, x + 90 = 180
You can either solve the equation for x or you can just subtract 90 from x, which is the easier way.
180 - 90 = 90
So, x = 90
I hope this helps, and explains it!
f(m)= 2m^6+ 4m + 6m+ + 7m² – 10m² - 8 at m=-2
Answers
Answer:
Step-by-step explanation:
2*( (-2)^6) = 128
4(-2) - 8
6(-2) -12
7(-2)^2 28
-10(-2)^2 -40
-8 -8
Total 88
The dot plot shows a random sample of vertical leap heights in two different
basketball camps, Compare the mean values of the dot plota.
Click here to view the dol plot for Camp 1.
Click here to view the dot plot for Camp 2.
Compare the mean values of the dot plots.
Vertical Leap Samples
Camp
Mean
1 303 + 11
2
(Type an integer or decimal rounded to the nearest tenth as needed)
In which camp do the participants jump higher in general?
O Camp 2
O Camp 1
O Both camps are equal
Answers
Answer: 299/11=27.1
Step-by-step explanation:
What is the value of x?
Answers
Answer:
x=2
Step-by-step explanation:
so u have 7 as the whole length.
and 5 of the 7 is filled
so u do this 7-5=2
Help me find the volume of the composite figure
Answers
Answer:
[tex]V = 97.911in^3[/tex]
Step-by-step explanation:
Given
Shapes: Cube and Cone
Required
Determine the volume
First we calculate the volume of the cube
[tex]V_1 = l^3[/tex]
Where
l = side length = 5.1
[tex]V_1 = 5.1^3[/tex]
[tex]V_1 = 132.651[/tex]
Next, calculate the volume of the cone using:
[tex]V_2 = \frac{\pi r^2h}{3}[/tex]
Where
h = 5.1
[tex]r = \frac{1}{2} * Diameter[/tex]
[tex]r = \frac{1}{2} * 5.1[/tex]
[tex]r = 2.55[/tex]
So, we have:
[tex]V_2 = \frac{\pi r^2h}{3}[/tex]
[tex]V_2 = \frac{\pi * 2.55^2 * 5.1}{3}[/tex]
[tex]V_2 = \frac{22 * 2.55^2 * 5.1}{7*3}[/tex]
[tex]V_2 = \frac{729.5805}{21}[/tex]
[tex]V_2 = 34.74[/tex]
The volume of the figure is:
[tex]V=V_1 - V_2[/tex]
[tex]V_1 = 132.651[/tex]
[tex]V = 132.651 - 34.74[/tex]
[tex]V = 97.911in^3[/tex]
Can anyone help me pls
Answers
If there are 5 apples and I take 2 away how many apples do I have?
Answers
Answer:
You will have 3 apples left because 5 - 2 = 3.
(Hope this helps! Btw, I am the first to answer. Brainliest pls! :D)
Point A is at (-2, 4) and point B is at (7,3).
What is the midpoint of line segment AB?
Answers
Answer:
(2.5,3.5)
Step-by-step explanation:
Omni calculator
Answer:
(2.5, 3.5)
Step-by-step explanation:
What's the circumference of a
circle with a radius of 22 inches?
Use 3.14 for n.
Answers
Answer:
C
≈
138.23
in
Step-by-step explanation:
I hope it helped
Which linear inequality represents the graph below?
(0,4)
(2,4)
Answers
Answer:
c
Step-by-step explanation:
slope of red line=(-4-4)/(2-0)=-8/2=-4
eq. of red line is y-4=-4(x-0)
y=-4x+4
put x=0,y=0
0=0+4
which is true if 0<4
so y<-4x+4
The linear inequality represents the graph fr the coordinates (0,4), (2,-4) is y < -4x + 4.
What is linear inequality?Expressions with linear inequalities compare any two values using inequality symbols like "<", ">" , "≤" or "≥" These values could be either numerical, algebraic, or both.
Calculation for linear inequality shown by graph:
The coordinates of the straight line are (0,4), (2,-4).
Substitute the value in equation shown in option C.
y < -4x + 4
For points (0,4), put x = 0 and find y.
y < -4×0 + 4
y = 4 , which is satisfied.
Now consider points (2, -4)
Put x = 2 in the same equation and find y.
y < -4×2 + 4
y = -4 ( which again satisfies the given value for y)
Therefore, the equation y < -4x + 4 satisfies the points given for straight line.
To know, how to find equation of line for any point?, here
https://brainly.com/question/18831322
#SPJ2
Select the correct answer.
What are the zeros of this quadratic function?
f(x) = (x − 7)(x + 8)
A.
x = 7 and x = -8
B.
x = -7 and x = 8
C.
x = 0 and x = -8
D.
x = 0 and x = 7
Answers
(x - 7) (x + 8)
Multiply the first x by both numbers in the second factor. Which means, you multiply x by x and 8, the two in (x + 8).
With this, you get -
x^2 + 8x
Then do the same thing with -7.
-7x - 56
Then combine the two.
x^2 + 8x - 7x - 56
Combine like terms.
x^2 + x - 56
So now, 7 x 8 is 56
And -7 + 8 would be 1. And that is the value of “x” which is b in the form a^2x + bx + c.
Now with this, you take those two numbers and make the factors =
(x + 8) (x - 7)
Then you set these equal to 0.
x + 8 = 0
Subtract the 8 from both sides.
x = -8
————
x - 7 = 0
Add the 7 on both sides.
x = 7
Answer: A
Answer:
The answer would be A
Step-by-step explanation:
You can find the answer by doing the FOIL method.
Cynthia walk 9/100 Miles to school and 3/10 Miles friends house how many miles does Cynthia walk total
Answers
Answer:
12 Miles
Step-by-step explanation:
Expand. Your answer should be a polynomial in standard form. (d^2+3)(d^2+2d+1)=(d 2 +3)(d 2 +2d+1)=left parenthesis, d, squared, plus, 3, right parenthesis, left parenthesis, d, squared, plus, 2, d, plus, 1, right parenthesis, equals
Answers
Answer:
A= d^4-d^2-6
Step-by-step explanation:
I have khan academy and the other answer is wrong
If you can buy 4 containers of pudding for $4.20 how much can you buy for $9.45 math problem
Answers
Answer:
9
Step-by-step explanation:
4.20 / 4 = 1.05
105 x 9 = 9.45
True or False: If you are tossing three dice, ={2,3,4,5,6}
is an event in that sample space.
false
true
Answers
I think is true
Please let me know if it right
4x+25=57
valor de x por favor
Answers
Answer:
4x=8
Step-by-step explanation:
4x=32
32/4=8
Answer:
x=8
Step-by-step explanation:
4x+25=57
Subtract 25 from both sides:
4x+25-25=57-25
Simplify:
4x=32
Divide both sides by 4:
4x/4=32/4
Simplify:
x=8