The incorrect statement is option D) The probability of finding my keys is - 1/5, as probabilities cannot be negative. Probabilities range between 0 and 1, and the calculation for combined probability of independent events involves multiplication, not addition.
The statement that is not correct to use probability to describe is option D) The probability of finding my keys is - 1/5. Probabilities range from 0 to 1 (or 0% to 100%), where 0 indicates impossibility and 1 indicates certainty. A negative probability does not make sense within this framework, so option D reflects a misunderstanding of how probabilities are represented.
The correct way to calculate the combined probability of two independent events is to multiply their individual probabilities. For example, to find P(A AND B) when dealing with independent events, you would calculate P(A) * P(B). Therefore, if P(A) = .2 and P(B) = .3, the correct answer for P(A AND B) would be .06, which corresponds to option D in the exercise provided.
It is also important to clarify misconceptions such as adding probabilities of non-mutually exclusive events. For instance, the fallacy that if there is a 60 percent chance of rain on one day and a 70 percent chance on another, then there is a 130 percent chance of rain over the weekend.
This is incorrect because probabilities cannot exceed 100%. Instead, you would evaluate the chances of rain differently depending on the independence or interdependence of the weather on those days.
What is the surface area of this right rectangular prism? Enter your answer as a
number only; no units.
You will find all of the surface area of all of the sides and add them together to find the surface area of the retangular prisim. So, what I would do is the front and back are both 54, so 108. The sides are 27, so 54. The top and bottom are 18, so 36. Add them together, and you will get 198. I hope this helps.
For the inequality, -4x + 5 >-5
Decide whether the solution is represented
by x < 2.5 or x > 2.5
I NEED THE ANSWER ASAP PLEASE
Answer:
x<2.5
Step-by-step explanation:
-4x +5>-5
-4x>-5-5
-4x>-10
x<10/4(on multiplying (-)ve sign both the sides inequality changes)
x < 2.5
The inequality -4x + 5 > -5 simplifies to x < 2.5 after isolating the variable and dividing by -4, which also reverses the inequality sign.
Explanation:To solve the inequality -4x + 5 > -5, we first isolate the variable on one side:
Add or subtract constants from both sides of the inequality as needed.Divide or multiply both sides by the coefficient of the variable, taking care to reverse the inequality sign if you multiply or divide by a negative number.Let's solve the inequality step-by-step:
Add 5 to both sides to get -4x > -10.Divide both sides by -4, remembering to reverse the inequality sign, so x < 2.5.Therefore, the solution to the inequality is x < 2.5.
(sec x + csc x)(cos x − sin x) = cot x − tan x
Verify the answer
Answer:
Explanation:
The reciprocal identities
csc
θ
=
1
sin
θ
sec
θ
=
1
cos
θ
cot
θ
=
1
tan
θ
The quotient identities:
tan
θ
=
sin
θ
cos
θ
cot
θ
=
cos
θ
sin
θ
Applying all these identities, on both sides, we get:
1
sin
x
+
1
cos
x
sin
x
+
cos
x
=
cos
x
sin
x
+
sin
x
cos
x
cos
x
+
sin
x
cos
x
sin
x
sin
x
+
cos
x
=
cos
x
sin
x
+
sin
x
cos
x
1
sin
x
+
cos
x
×
cos
x
+
sin
x
cos
x
sin
x
=
cos
x
sin
x
+
sin
x
cos
x
1
cos
x
sin
x
=
cos
2
x
+
sin
2
x
sin
x
cos
x
Applying the pythagorean identity
sin
2
x
+
cos
2
x
=
1
on the right side, we get:
1
cos
x
sin
x
=
1
sin
x
cos
x
Hopefully this helps!
A car wash company charges a $4 initial fee, plus $1 for each car wash. Which equation
represents this situation?
Answer:
x+4
Step-by-step explanation:
Equation for the situation will be y = x + 4.
Given in the question,
"A car wash company charges $4 initial fee plus $1 for each car wash"
Let the number of car washes = x
Cost of 'x' car washes = $x
Total fee (with initial fee) for 'x' car washes = $(x + 4)
Therefore, equation for the total amount 'y' will be,
y = x + 4
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Why does 2+2 =4 but blue + blue still equal blue?
2+2=two 2
blue+blue = two blue
The Tanners just got married and are trying to decide whether to file jointly or separately. They make $75,000 and $28,000. If their income tax rate is 25%, how much would their taxes be if they filled jointly? *
A. $7,000
B. 18,750
C. 25,750
D. 128,750
I NEED HELP PLEASE
Answer:
La respuesta es la C
Step-by-step explanation:
Primero tienes que hacer el 25% de ambas cantidades y luego sumarlo
The required, tax would be $25,750 if the Tanners file jointly.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
Assuming that the tax rate of 25% applies to their combined taxable income, here's how to calculate their taxes if they filed jointly:
Calculate their combined taxable income:
$75,000 + $28,000 = $103,000
Calculate their tax liability based on their combined taxable income: $103,000 x 0.25 = $25,750
Therefore, the answer is C. $25,750, if the Tanners file jointly.
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please help and explain! i will mark brainliesttt!
Ooo, this is a quick one! :D
Due to the vertical angles theorem, which states that d and 39.2 are symmetrical, that means that d is the exact same measure, therefore d is 39.2° as well!
Answer:
39.2
Step-by-step explanation:
this is a vertical angle
a vertical angle is when each of the pairs of opposite angles made by two intersecting lines.
A rectangular pyramid. The rectangular base has a length of 6 centimeters and width of 4 centimeters. 2 triangular sides have a base of 6 centimeters and height of 6 centimeters. 2 triangular sides have a base of 4 centimeters and height of 4.6 centimeters.
The area of the base is 24 cm2.
There are four lateral faces.
All the lateral faces are congruent.
The total surface area of the figure is 66.4 cm2.
At least one of the lateral faces has an area equal to 24 cm2.
Answer:
its B
Step-by-step explanation:
Answer:
Bb
Step-by-step explanation:
Could somebody help me with this as well if you’re good at geometry
Will give Brainly to the best answer!!!!! Please help!!!!
Answer:
x=-1
Step-by-step explanation:
here is an example for my class, these really helped
A quadratic equation is any second-degree polynomial equation — that’s when the highest power of x, or whatever other variable is used, is 2. The solution or solutions of a quadratic equation,
Solve the equation,
with the quadratic formula:
Bring all terms to one side of the equation, leaviign
Plug the coefficients into the formula.
In this example, a equals 2, b is –5, and c is –12, so
You can also use the quadratic formula for factoring trinomials.
Here’s what you do.
Use the quadratic formula to get solutions for x. (You can also use your calculator to get the solutions.) Make sure the solutions are written as fractions rather than as decimals and that they’re reduced to lowest terms.
Take the two solutions and put them in factors. If a solution is positive, use subtraction. If a solution is negative, use addition.
If either solution is a fraction, take the denominator and bring it in front of the x.
And, voilà, the trinomial is factored:
(x – 4)(2x + 3)
Answer:
X= -1
Step-by-step explanation:
how u can see I apply the formula, and I have two answers X1= -1 and X2= -1
U only need to see the information that they give u, it was x^2+2x+1=0
and we know that
a= 1
b=2
c=1
then you replace in the formula and do the exercise:)
The line segments that connect 2nd base to 1st base' & 2nd base to 3rd base form a right angle. Marcus on 3rd base and he is 90ft from Jean who is on 2nd base. Jean is 90ft from Joel who is on 1st base. How far, in feet, is Marcus from Joel?
A. 45
B. 90
C. 90√2
D. 90√3
Answer: The correct answer is option C; 90√2
Step-by-step explanation: The line segments are labelled as base 1, base 2 and base 3 respectively. This we shall call point 1, point 2 and point 3. These three points form a right angle. Also we have been told that Marcus is on point 3 and Jean is on point 2. They are both 90 feet apart. Also Joel is on point 1 and he is 90 feet away from Jean. The unmeasured distance therefore is from point 1 to point 3, which is the distance from Joel to Marcus (or Marcus to Joel).
The distance from point 1 to point 3 is the hypotenuse of the right angled triangle derived. Using the Pythagoras' theorem, the distance from Joel to Marcus (or JM) is calculated as follows;
JM² = JC² + JL²
Where JM is the distance between Joel and Marcus (hypotenuse), JC is the distance from Jean to Marcus and JL is the distance from Jean to Joel.
JM² = 90² + 90²
JM² = 8100 + 8100
JM² = 16200
Add the square root sign to both sides of the equation
√JM = √16200
JM = √100*√81*√2
The right hand side of the equation can be further solved as
JM = 10*9*√2
JM = 90√2
Therefore the distance between Marcus and Joel is calculated as 90√2 feet
Match the expression with the logarithm that has the same value. *3 log 4
A. log 3/4
B. log 81 c. log 64 D. log 12
Answer:
c. log 64.
Step-by-step explanation:
By the laws of logs:
3 log 4 = log 4^3
= log 64.
The correct value of the given logarithmic function is log 64. Option c is correct.
What is a logarithmic function?The opposite of an exponential function is a logarithmic function. A log function and an exponential function both use the same base. An exponent is a logarithm. [tex]f(x) = b^x[/tex] is how the exponential function is expressed. The formula for the logarithmic function is f(x) = log base b of x.
The expression 3 log 4 can be rewritten as:
[tex]3 log 4 \\= > log (4^3) \\= > log \ 64[/tex]
So, the logarithm that has the same value as 3 log 4 is option C, log 64.
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On the calculator, graph several monomial functions where a = 1 and n is even. For example, y = x4, y =
xo, y = x®, and so on. Trace along the functions, then check all of the statements that are true about all of
these functions.
The graph opens up.
The graph passes through (0,0).
The graph is symmetric about the y-axis.
The graph only has 1 x-intercept.
The graph only has 1 y-intercept.
Answer:
a
Step-by-step explanation:
(Please help my I'm timed!)
Using complete sentences, explain the importance of NAFTA. Be sure to discuss the close economic relationship between Canada and the United States.
NAFTA as an organization is very important for the three North American economies, the USA, Canada, and Mexico. It is basically a regional trade organization which has lifted the borders when it comes to trade, thus enabling free movement of goods between these three nations. This has resulted in rise of the economies of all three nations, as there were no trade barriers between them anymore. The companies where able to move their facilities and to operate in each of these countries, which brought them larger profits. The Canadian and the US economies became almost like one, as the companies managed to operate in both places, and to become major players in the market, this especially goes for the US companies that made Canada their home terrain.
Answer:
NAFTA eliminates almost all barriers to trade and investment between the three North American countries and includes provisions for the protection of intellectual property rights.
Please mark me brainlist
the conference of a circle is 34 centimeter. find the radius
Answer:
r = 5.41
Step-by-step explanation:
r = C/2pi
r = 34/2pi
r = 34/6.28
r = 5.41 (rounded)
Answer
Step-by-step explanation:
Solution
Here,
Circumference of circle = 34 cm
Check the picture
Look at this set of 8 numbers:
8399831844518383
How would the mode change if the number 83 replaced the number 99 in the set?
Answer:
it wouldnt change it will still be 8 numbers
3y+4y=-49
solve for y
Answer:
y=-7
Step-by-step explanation:
Move all terms that don't contain to the right side and solve.
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⊕ΘΞΠΤ⊕
∵∴∵∴∵∴∵∴∵
Answer: The solution for y would be y = -7
Step-by-step explanation:
-Solve:
[tex]3y+4y=-49[/tex]
-First, Combine like terms:
[tex]3y+4y=-49[/tex]
[tex]7y=-49[/tex]
-Then, divide both sides by 7:
[tex]7y= -49[/tex]
[tex]\frac{7y}{7} = \frac{-49}{7}[/tex]
[tex]y=-7[/tex]
So, therefore the result would be y= -7.
Combine the like terms to create an equivalent expression:
4z-(-3z)
Answer:
4z+3z=7z
Step-by-step explanation:
4z- (-3z) is 7z because two negative signs make a positive sign.
What is the area of this irregular figure? A shape can be broken into a rectangle and parallelogram. The rectangle has a base of 12 millimeters and a height of 6 millimeters. The parallelogram has a base of 12 millimeters and a height of 9 millimeters. 90 Millimeters squared 180 Millimeters squared 540 Millimeters squared 1,080 Millimeters squared
Answer:
last on D
Step-by-step explanation:
Answer:
Step-by-step explanation
i think it 180 but if its not right i am so sorry
good luck
The polygons below are similar. Find the value of x. (2 points)
F
6
D
E 12Η
Ο
4.5
Ο
Ο 7.5
Ο
Ο 12
Ο
Ο 16
Answer:
7 is x but it ain't there
Kevin makes a list of the tasks he has to do after school and how long it will take him to do each task.
How long will it take Kevin to complete all of his tasks?
9/12
B
9/15
C
27/12
D
20/12
Answer:
The answer is D- 20/12
Step-by-step explanation:
Helpppppppppppppppppllpppp math people
Answer:
i would say 7.1
Step-by-step explanation:
The table shows the number of insects, by type, Bobby saw at a picnic.
Insect
Number
Fly
Ant
Bee
Ladybug
Select the true statements about the information in the table.
Answer:
well number wouldnt be right? kind of weird question
Step-by-step explanation:
Answer: The question is a fly is The table shows the number of insects, by type, Bobby saw at a picnic.
Insect Number
Fly 8
Ant 22
Bee 4
Ladybug 6
Select the true statements about the information in the table.
Choose all answers that apply:
Choose all answers that apply:
(Choice A)
A
The ratio of flies to all insects is 1:5,
(Choice B)
B
For every 1 bee there are 10 insects.
(Choice C)
C
None of the above
Step-by-step explanation:
Solve for f(2).
f(x) = -3x + 3
f(2) = [?]
Answer & Explanation Included:
f(x)= -3x + 3
f(2)= -3(2) + 3
f(2)= -6 + 3
f(2)= -3
Factor 4x^3-400x thanks a lot
Answer:
4x(x-10)(x+10)
Step-by-step explanation:
4x^3-400x
Factor out 4x
4x(x^2-100)
We know that x^2-100 is the difference of squares
a^2 - b^2 = (a-b)(a+b)
4x(x^2-100)= 4x(x^2 -10^2)
4x(x-10)(x+10)
Segments AD and BE are parallel because they are both horizontal
Answer:
Step-by-step explanation:
This isn't really a question so how do you expect us to answer this?
Please select the best answer from the choices provided
Answer:The answer is F I hope that helps.
Step-by-step explanation: The steps are F(x)....
Store
Advertised Bread Prices
Darryl also needs to find a better deal on bread. Rank
the stores from 1 to 4 based on their unit prices. Use
the drop-down menus to label the lowest price per loaf
with "1" and the highest price per loaf with “4."
5 loaves for $6.50
Store A
B
Store B:
10 loaves for $7.50
Store C:
15 loaves for $18.75
Store D:
20 loaves for $22.00
Answer:
Store A: 4
Store B: 1
Store C: 3
Store D: 2
Step-by-step explanation:
I got it right
Answer:
4,1,3,2
Step-by-step explanation:
u hate edgunlty ik u do
A pipe needs to be cut into pieces that are each 3/4 feet long. If the pipe is 24 feet long, how many pieces can be made from the pipe?
Answer:
32
Step-by-step explanation:
[tex]Number \: of \: pieces = \frac{length \: of \: pipe}{length \: of \: one \: piece} \\ \\ \hspace {80 pt} = \frac{24}{ \frac{3}{4} } \\ \\ \hspace {80 pt}= 24 \times \frac{4}{3} \\ \\ \hspace {80 pt}= 8 \times 4 \\ \\ \hspace {80 pt}= 32[/tex]
Answer:
32 pieces
Step-by-step explanation:
If you do 24 divided by 3/4, then you would get 32 pieces, which is the answer. Hope this helps!
What is the correct factorization of 5!?
Answer:
B) 5 x 4 x 3 x 2 x 1
Step-by-step explanation:
When you see a ! directly next to a number (such as 5!), it means that you are multiplying starting from that number, and stepping down each time:
5! = 5 * 4 * 3 * 2 * 1
For example, take factoral 10: 10!
10! = 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 3,628,800
In this case, you are multiplying 5!.
5! = 5 * 4 * 3 * 2 * 1 = (20) * (6) * 1 = 120
5! = 120