The probability of guessing on four true and false questions and getting all four questions correct

Answers

Answer 1

Answer:

50-50

Step-by-step explanation:

If yoiu have 4 and divide it b


Related Questions

Harry invests $1000 in an investment account that earns 6% interest, compounded annually. How much money will he have in the account after 30 years?

Answers

the answer to that question is 1800

Jeff sells shirts at a store in the mall. Which group should he survey to determine which color of shirt will have the greatest number sold?

Female customers

customers who are wearing blue

200 random customers

10 friends at work​

Answers

The 200 random customers is the group in which he surveys to determine which colour of shirt will have the greatest number sold, option third is correct.

What is a survey?

A survey is a means of gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.

We have:

Jeff sells shirts at a store in the mall.

The selecting the colour of the shirts is subjective.

It also depends on that how many colours that store sell.

Female customers cannot be an option because men also buy shirts and affect the result of the survey.

Customers who are wearing blue data only tells that how many blue shirts sold.

200 random customers. 200 is a sample from a population, so it will give appropriate results about the colour of shirt will have the greatest number sold

Thus, the 200 random customers is the group in which he surveys to determine which colour of shirt will have the greatest number sold, option third is correct.

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Use the equation below to find A, if 1 = 6 and w = 3.
A = lw

Answers

Answer:

l=6, w=3

And A is the multiplication of l and w

A=6×3

i want to know this factorization

Answers

Here is one factorisation
32 - (8b^4)^-1 = (1/2)(64 - (4b^4)^-1) = (1/2)(8 + (2b^2)^-1)(8 - (2b^2)^-1)

Or even
32 - (8b^4)^-1 = (1/8)(256 - b^-4) = (1/8)(16 + b^-2)(16 - b^-2)

Both use the difference of two squares ie a^2 - b^2 = (a + b)(a - b)

En el sistema, encontrar el doble de y:
2x + y = 5
x + y = 4

a) 6
b) 4
c) 3
d) 2

Answers

Answer:

y=3

x=1

Step-by-step explanation:

1 by substitution method

2x+y=5 (1)

x+y=4 (2)

find x in eq 2

x=4-y

put the value in eq 1

2x+y=5

2(4-y)+y=5

8-2y+y=5

8-y=5

-y=5-8

-y=-3

y = 3

x=4-y

x=4-3

x=3

hope it helps you

please mark it as brainliest

Suppose that you have $14,000 to invest and you are trying to decide between investing in project A or project B. If you invest in
project A, you will receive a payment of $17,000 at the end of 3 years. If you invest in project B, you will receive a payment of $56,000
at the end of 23 years. The annual interest rate is 6 percent and both projects carry no risk.
Instructions: Round your answers to the nearest dollar. Do not round your intermediate calculations.
a. What is the present value of each project? Enter your answers in the table below.
Present Value
Project A =
$
Project B =
$
b. Which project will you choose for your investment?
Project A
Project B

Answers

B ez get money and invest in big stuff that’s cheap rn

PLEASE HELP!!!!!!!!

Note: please add the answer next to the number its from so I can know which question was answered

Answers

1)B
2)B

1) K < or equal to -5 so smaller than -5 with closed circle
2)K < or equal to 1 so less than 1 with closed circle

( 100 points + brain ) My dropshipping business makes me 11,000$ - 40,000$ a month, At this rate how much money could I make in a year? how much money could I make in 20 years? how much money could I make in 60 years?

Answers

Answer:

One year: Between $132,000 and $480,000.

20 years: Between $2,640,000 and $9,600,000.

60 years: Between $7,920,000 and $28,800,000.

Step-by-step explanation:

If it makes between 11,000 and 40,000 a month, you should take both values and average them or make an estimate. Since there are 12 months in a year, 11,000*12 = $132,000 minimum, 40,000*12 = $480,000 maximum.

In 20 years, 132,000*20= $2,640,000 minimum, 480,000*20 = $9,600,000 maximum.

In 60 years, 2,640,000*3 = $7,920,000 minimum, 9,600,000*3 = $28,800,000 maximum.

If you want to be more specific, you need to find the average number of times you make certain amounts of money per month to find how likely it is to make a certain amount.

Answer:

taking my points back

Step-by-step explanation:


Help please bed asap thank you!!!

Answers

Answer:

hr

Step-by-step explanation:

Convert 85° to degrees Fahrenheit.
If necessary, round your answer to the nearest tenth of a degree.
Here are the formulas.

Answers

answer :

[tex]C=\frac{265}{9}[/tex]

work:

[tex]F=85[/tex] °[tex]C[/tex]

[tex]F= 85[/tex] into [tex]C=\frac{5}{9}(F-32)[/tex]

[tex]C=\frac{5}{9}[/tex] x [tex](85-32)[/tex]

[tex]C=\frac{265}{9}[/tex]

4x+3y=6
-4x+2y=14
Solve the system of equations.

A. x= 1/2, y=3
B. x=3, y =1/2
C. x=4, y = -3/2
D. x=-3/2, y = 4

Answers

Answer:

D

Step-by-step explanation:

4x + 3y = 6

-4x + 2y = 14

0 + 5y / 5 = 20/ 5 = 4 = y

4x + 3(4) = 6

4x + 12 - 12 = 6 - 12

4x / 4 = -6 / 4 = -3 / 2 =x

Which graph represents the function f(x) = –x2 + 5? On a coordinate plane, a parabola opens down. It goes through (negative 3, negative 4), has a vertex at (0, 5), and goes through (3, negative 4). On a coordinate plane, a parabola opens up. It goes through (negative 2, 9), has a vertex at (0, 5), and goes through (2, 9). On a coordinate plane, a parabola opens down. It goes through (negative 6, negative 9), has a vertex at (negative 5, 0), and goes through (negative 2, negative 9). On a coordinate plane, a parabola opens up. It goes through (negative 8, 9), has a vertex at (negative 5, 0), and goes through (negative 2, 10).

Answers

Answer:

The graph in the attached figure

Step-by-step explanation:

we have the quadratic function

[tex]f(x)=-x^2+5[/tex]

This is a vertical parabola open downward

The vertex is a maximum

Remember that

The equation of a vertical parabola in vertex form is equal to

[tex]y=a(x-h)^2+k[/tex]

where

a is a coefficient

(h,k) is the vertex

In this problem

a=-1

(h,k)=(0,5) ----> vertex

The y-intercept is the point (0,5) ---> value of y when the value of x is equal to zero (is the same point that the vertex)

The x-intercepts are the points  --->values of x when the value of y is equal to zero  

using a graphing tool

The graph in the attached figure

Answer:

A on edge

Step-by-step explanation:

i took the test

What is the slope of the line passing through the points (2, 5) and (0, -4)?
Show all your work.
Leave your answer as a fraction

Answers

Answer:

slope = 9/2

Step-by-step explanation:

y2 - y1 / x2 - x1

-4 - 5/0- 2 = 9/2

triunghiul echilateral DEF este inscris in cercul C(O, 4radical6). Calculati aria triunghiului DEF.

Answers

Answer:

[tex]\green{ \rule{500pt}{999999pt}}[/tex]

A midpoint approximation of the area under the curve f(x) = 2x(x-4)(x-8) over the interval [0, 4] with 4 subintervals is 120. 132. 160.​

Answers

The midpoint approximation of the area under the curve f(x) = 2x(x-4)(x-8) over the interval [0, 4] with 4 subintervals is 132.

How to calculate the midpoint?

The value of f(1/2) will be:

= 2(1/2)(1/2 - 4)(1/2 - 8)

= 105/4

The value of f(3/2) will be:

= 2(3/2)(3/2 - 4)(3/2 - 8)

= 195/4

The value of f(5/2) will be:

= 2(5/2)(5/2 - 4)(5/2 - 8)

= 165/4

The value of f(7/2) will be:

= 2(7/2)(7/2 - 4(7/2 - 8)

= 63/4

Therefore, the midpoint approximation will be:

= 1/4(105 + 195 + 165 + 63)

= 132

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find tan0 please help fast!

Answers

Answer:

Tan(51.06) = 1.24 so the correct answer is A

Step-by-step explanation:

Sin0 = 7/9

0 =Arcsin(7/9)

0 =51.06

So,

Tan(51.06) = 1.24 so the correct answer is A

Answer:

A. [tex]\frac{7\sqrt{2} }{8}[/tex]

Step-by-step explanation:

Finding the missing side :

7² + x² = 9²

x² + 49 = 81

x² = 32

x = 4√2

Taking the tan value :

tanθ = 7/(4√2)

tanθ = 7(4√2)/4√2(4√2)

tanθ = 28√2/32

tanθ = [tex]\frac{7\sqrt{2} }{8}[/tex]

please solve the given problem​

Answers

Answer:

  x = -47.1

  x = -3.35454... (2-digit repeat)

Step-by-step explanation:

Each of the absolute value functions causes the overall behavior of the equation to change where that absolute value function's argument is zero. Those values of x are -7, -5/2, -2/5.

These breakpoints cause the domain of the equation to be divided into 4 parts. A graphing calculator shows us that solutions exist only in the two regions ...

x < -7-7 ≤ x < -5/2

In those regions, the equation simplifies to ...

x < -7

  2(-(x +2/5)) -2(-(x +7)) = 2/3x +(-(x +5/2))

  x(-2 +2) -4/5 +14 = x(2/3 -1) -5/2 . . . . collect terms

  15.7 = -1/3x . . . . . . add 5/2

  x = -47.1 . . . . . . . multiply by -3

__

-7 ≤ x < -5/2

  2(-(x +2/5)) -2(x +7) = 2/3x +(-(x +5/2))

  x(-2 -2) -4/5 -14 = x(2/3 -1) -5/2 . . . . collect terms

  (-3 2/3)x = 12.3 . . . . . . . . add 1/3x +14.8

  x = -36.9/11 = -369/110

  x = -3 39/110 ≈ -3.35454... (2-digit repeat)

What is the value of x in | - 6| = x? O 6 and -6 00 06 -6 HOURME​

Answers

Answer:

I believe, 6.

Step-by-step explanation:

Not sure if the rest of the question is the answer choices but the absolute of any number, is it's exact opposite. The reason for this is that an absolute number, or |?| is equal to whatever distance it is from 0. Since adding 1, and subtracting 1, both do such but in opposite directions, the absolute value of both would be 1.

Please help me ojn this question

Answers

Answer:

T4 = 162   T5 = 486    T6 = 1458

Explanation:

the pattern is multiply the previous number by 3

so 6 x 3 = 18

18 x 3 = 54

54 x 3 = 162 and so on.

Solve for x: 12x= 36

Please show all the steps that were given above that you must take to solve for x.

Answers

Step-by-step explanation:

x=36/12

x=2

I hope it's helpful for you

12x = 36

x = 36÷12

x = 3

Hope it helps......

How many three digit numbers can you make by arranging the numbers 5, 4, and 9.

Answers

okay,here is about a formula.

n=2x

where x is the numbers.

n=2×3

n=6.

therefore the three digit numbers which can be obtained is 6.

. Estimate the sum of 277 and 854 and write them in Roman numerals.

Answers

Answer:

The answer is MC = 1100. The real answer is 1131 but I have estimated the answer to the nearest hundred.

Step-by-step explanation:

I just added them up to get the real answer. The real answer is 1131 but I have estimated the answer to the nearest hundred.

Answer: MCXXXI
The sum of 277 and 854 is 1131.
M = 1000
C = 100
X = 10
I = 1

hi can anyone solve my math problem

Answers

Answer:

The solutions to this equation are x = -8/9 and x = -16/3.

Step-by-step explanation:

Simplified Equation

We have this equation here:

[tex]\displaystyle \frac{1}{3}|x-4|=\frac{2}{3} x+2|x+\frac{6}{3} |[/tex]

First, let's simplify the right sight of the equation by simplifying 6/3 to 2.

[tex]\displaystyle \frac{1}{3}|x-4|=\frac{2}{3} x+2|x+2 |[/tex]

Multiply both sides of the equation by 3 in order to get rid of the fractions.

[tex]|x-4|=2x+6|x+2|[/tex]

Move the terms on either side of the equation to set them equal to 0.

[tex]|x-4|-2x-6|x+2|=0[/tex]

Now, we can split this equation up into 4 possible cases. In each case, we make the absolute values negative or positive.

Case #1 (first absolute value: positive; second absolute value: positive)

[tex](x-4)-2x-6(x+2)=0[/tex]

Simplify this equation by distributing -6 inside the parentheses.

[tex]x-4-2x-6x-12=0[/tex]

Combine like terms.

[tex]-7x-16=0[/tex]

Add 16 to both sides of the equation and divide by -7.

[tex]\displaystyle \boxed{x=-\frac{16}{7}}[/tex]

Case #2 (first absolute value: negative; second absolute value: positive)

[tex]-(x-4)-2x-6(x+2)=0[/tex]

Distribute the negative sign and -6 inside of their respective parentheses.

[tex]-x+4-2x-6x-12=0[/tex]

Combine like terms.

[tex]-9x-8=0[/tex]

Add 8 to both sides of the equation and divide by -9.

[tex]\displaystyle \boxed{x=-\frac{8}{9}}[/tex]

Case #3 (first absolute value: positive; second absolute value: negative)

[tex](x-4)-2x-6[-(x+2)]=0[/tex]

Distribute the negative sign inside the parentheses first.

[tex]x-4-2x-6(-x-2)=0[/tex]

Now, distribute -6 inside the parentheses.

[tex]x-4-2x+6x+12=0[/tex]

Combine like terms.

[tex]5x+8=0[/tex]

Subtract 8 from both sides of the equation and divide by 5.

[tex]\displaystyle \boxed{ x=-\frac{8}{5}}[/tex]

Case #4 (first absolute value: negative; second absolute value: negative)

[tex]-(x-4)-2x-6[-(x+2)]=0[/tex]

Distribute the negative signs inside the parentheses first.

[tex]-x+4-2x-6(-x-2)=0[/tex]

Distribute -6 inside the parentheses.

[tex]-x+4-2x+6x+12=0[/tex]

Combine like terms.

[tex]3x+16=0[/tex]

Subtract 16 from both sides of the equation and divide by 3.

[tex]\displaystyle \boxed{x=-\frac{16}{3}}[/tex]

Extraneous Solutions

Whenever we solve problems with absolute values, we will always need to check for extraneous solutions.

Definition: These are solutions that may come up while solving but do not actually fit in the domain of the original problem.

Checking for these is tedious, but it will help eliminate wrong answers, so let's plug every "solution" for x that we found back into the original equation.

1) x = -16/7

Substitute this value back into the original equation.

[tex]\displaystyle \frac{1}{3}|(-\frac{16}{7}) -4|=\frac{2}{3} (-\frac{16}{7}) +2|(-\frac{16}{7}) +\frac{6}{3} |[/tex]

If we do all the calculations correctly, we will get:

[tex]\displaystyle \frac{44}{21} =-\frac{20}{21}[/tex]

Since this equation is NOT true, this means that x = -16/7 is NOT A SOLUTION.

2) x = -8/9

Substitute this value back into the original equation.

[tex]\displaystyle \frac{1}{3}|(-\frac{8}{9}) -4|=\frac{2}{3} (-\frac{8}{9}) +2|(-\frac{8}{9}) +\frac{6}{3} |[/tex]

If we do all the calculations correctly, we will get:

[tex]\displaystyle \frac{44}{27} =\frac{44}{27}[/tex]

Since this equation IS true, this means that x = -8/9 IS A SOLUTION.

3) x = -8/5

Substitute this value back into the original equation.

[tex]\displaystyle \frac{1}{3}|(-\frac{8}{5}) -4|=\frac{2}{3} (-\frac{8}{5}) +2|(-\frac{8}{5}) +\frac{6}{3} |[/tex]

If we do all the calculations correctly, we will get:

[tex]\displaystyle \frac{28}{15} =-\frac{4}{15}[/tex]

Since this equation is NOT true, this means that x = -8/5 is NOT A SOLUTION.

4) x = -16/3

Substitute this value back into the original equation.

[tex]\displaystyle \frac{1}{3}|(-\frac{16}{3}) -4|=\frac{2}{3} (-\frac{16}{3}) +2|(-\frac{16}{3}) +\frac{6}{3} |[/tex]

If we do all the calculations correctly, we will get:

[tex]\displaystyle \frac{28}{9} =\frac{28}{9}[/tex]

Since this equation IS true, this means that x = -16/3 IS A SOLUTION.

Final Answer

The two true solutions of the double absolute value equation, shown above, are:

[tex]\displaystyle \boxed{-\frac{8}{9} } \ \ \& \ \ \boxed{-\frac{16}{3}}[/tex]

Answer:

  x = -16/3 or -8/9

Step-by-step explanation:

The equation can be rewritten as a piecewise linear function with two breakpoints, or three domain regions. Each breakpoint is at the value of x where the argument of the absolute value function is zero: at x=4 and x=-2.

For each absolute value, we have ...

  |q| = -q   for q < 0

  |q| = q   for q ≥ 0

Then the three parts of the domain are ...

x < -2 . . . . . . . . where |x +2| has its vertex-2 ≤ x < 4 . . . . . between the vertices4 ≤ x . . . . . . . . . where |x -4| has its vertex

__

Subtracting the right side, the equation becomes ...

  1/3|x -4| -2/3x -2|x +2| = 0

Then the three piecewise functions are ...

x < -2

Both absolute value arguments are negated.

  1/3(-(x -4)) -2/3x -2(-(x +2)) = 0

  x(-1/3 -2/3 +2) +4/3 +4 = 0 . . . . . collect terms

  x +5 1/3 = 0 . . . . . . . simplify

  x = -5 1/3 . . . . . . . . . subtract 5 1/3. This result is in the domain

__

-2 ≤ x < 4

Only the argument of |x -4| is negated.

  1/3(-(x -4)) -2/3x -2(x +2) = 0

  x(-1/3 -2/3 -2) +4/3 -4 = 0 . . . . collect terms

  -3x -8/3 = 0 . . . . . . . simplify

  -3x = 8/3 . . . . . . . add 8/3

  x = -8/9 . . . . . divide by -3. This result is in the domain

__

4 ≤ x

Neither absolute value function argument is negated.

  1/3(x -4) -2/3x -2(x +2) = 0

  x(1/3 -2/3 -2) -4/3 -4 = 0 . . . . . collect terms

  -7/3x -8/3 = 0 . . . . . . . . . simplify

  -7/3x = 8/3 . . . . . . . . add 8/3

  x = -8/7 . . . . . . . . . divide by -7/3. This result is not in the domain.

There is no solution in this region.

__

The solutions are ...

x = -5 1/3x = -8/9


A square has a perimeter of 40 feet. Find the length of the
diagonal of the square.

Answers

Answer:

14.14

Step-by-step explanation:

Answer:

The length of the diagonal of the square is about 14.142 feet

Step-by-step explanation:

Step 1:  Determine the length

[tex]P = 4(l)[/tex]

[tex]40\ ft = 4(l)[/tex]

[tex]\frac{40\ ft}{4}=\frac{4(l)}{4}[/tex]

[tex]10\ ft = l[/tex]

Step 2:  Determine the diagonal length

Pythagorean theorem → [tex]a^2 + b^2 = c^2[/tex]

a and b are going to be the sides of the square which are both 10 ft so we just plug those in and solve for c

[tex](10)^2 +(10)^2 =c^2[/tex]

[tex]100+100=c^2[/tex]

[tex]\sqrt{200}=\sqrt{c^2}[/tex]

[tex]14.142=c[/tex]

Answer:  The length of the diagonal of the square is about 14.142 feet

What is the area of this figure? Please help

Answers

Answer:

369.5 ft²

Step-by-step explanation:

Area of figure :

Area (rectangle 1) + Area (rectangle 2) + Area (triangle 1) + Area (triangle 2)

5 x 4 + 13 x 8 + 1/2 x 23 x 13 + 1/2 x 24 x 820 + 104 + 149.5 + 96124 + 96 + 149.5220 + 149.5369.5 ft²

Answer:

369.5 ft²

Step-by-step explanation:

Separate the figure into 2 rectangles and 2 triangles.

(see attached image)

Area 1

Area of a rectangle = width × length

                                 = 4 × 5

                                 = 20 ft²

Area 2

Area of a rectangle = width × length

                                 = 8 × (4 + 4 + 5)

                                 = 8 × 13

                                 = 104 ft²

Area 3

Area of a triangle = 1/2 × base × height

                             = 1/2 × (6 + 4 + 5 + 4 - 6) × 23

                             = 1/2 × 13 × 23

                             = 149.5 ft²

Area 4

Area of a triangle = 1/2 × base × height

                             = 1/2 × 8 × (21 + 8 - 5)

                             = 1/2 × 8 × 24

                             = 96 ft²

Total Area

Area 1 + Area 2 + Area 3 + Area 2 = 20 + 104 + 149.5 + 96

                                                        = 369.5 ft²

Which of the following are always congruent?

Answers

Answer:

B. Vertical angles

Step-by-step explanation:

Please please I need help. What is the value of X

Answers

Answer:

x = 25

Step-by-step explanation:

Solving

∠CAD = 1/2 ∡ CD180° - 90° - (2x)° = 1/2 (80°)2x = 90° - 40° = 50°x = 25

which prism has the greatest value

Answers

The first prism does
Please I can't answer this question now I'm busy

Please help me do this mathematics question genius

Answers

The changes in Z would be = 6.1× 10^-4.

Calculation of the unknown value

Z = Sin (x³ +y³)

Where X = 0.3

y = 0.2

Z= Sin ( 0.3³ + 0.2³)

Z= Sin ( 0.027 + 0.008)

Z= Sin ( 0.035)

Z= 6.1× 10^-4

Therefore, the changes in Z would be = 6.1× 10^-4.

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If our statement was < β is congruent to < α, the reason would be _____.

Answers

Answer:

Step-by-step explanation:

Vertical angles  theorem.

It the UK they are called opposite angles,

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