Anyone know what the answer can be

Answer:

The answer in the procedure

Step-by-step explanation:

we have

[tex]2=-x+x^{2} -4[/tex]

[tex]x^{2}-x-4-2=0[/tex]

[tex]x^{2}-x-6=0[/tex]

we know that

The formula to solve a quadratic equation of the form

[tex]ax^{2} +bx+c=0[/tex]

is equal to

[tex]x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}[/tex]

in this problem we have

[tex]x^{2}-x-6=0[/tex]

so

[tex]a=1\\b=-1\\c=-6[/tex]

substitute in the formula

[tex]x=\frac{-(-1)(+/-)\sqrt{(-1)^{2}-4(1)(-6)}} {2(1)}[/tex]

[tex]x=\frac{1(+/-)\sqrt{25}} {2}[/tex]

[tex]x=\frac{1(+/-)5} {2}[/tex]

[tex]x=\frac{1(+)5} {2}=3[/tex]

[tex]x=\frac{1(-)5} {2}=-2[/tex]

Answer:

186655 geese

Step-by-step explanation:

In this question , the next generation is calculated by multiplying the current generation by 2.2. Let's do a simple math;

1st generation = 3

2nd generation= 3×2.2=6.6

3rd generation=6.6×2.2=14.52

4th generation=14.52×2.2=31.94

5th generation=31.94×2.2=70.28

6th generation= 70.28×2.2=154.61

7th generation=154.62×2.2=340.14

8th generation=340.14×2.2=748.31

9th generation=748.31×2.2=1646.28

10th generation=1646.28×2.2=3621.81

11th generation=3621.81×2.2=7967.98

12th generation=7967.98×2.2=17529.55

13th generation=17529.55×2.2=38565.0

14th generation=38565.0×2.2=84843.02

15th generation=84843.02×2.2=186654.64

=186655 geese

OR

If current generation is calculated as the previous generation multiplied by a factor then you should see that this is an exponential function.In this case

Original number of geese=3

Factor of multiplication is =2.2

Exponential function for first generation is =0

How? see here

[tex]1st=3*2.2^0=3*1=3\\\\2nd=3*2.2^1=3*2.2=6.6\\\\3rd=3*2.2^2=3*4.84=14.52[/tex]

So from the above you can derive an expression for 15th generation

You notice for 1st generation , the exponent is 0

For the 2nd generation the exponent is is 1

For the 3rd generation the exponent is 2

Thus for the nth generation the exponent will be n-1

Your expression for nth generation can now be;

[tex]nth=3*2.2^{n-1}[/tex]

For 15th generation

[tex]15th=3*2.2^{15-1} =3*2.2^{14} =186654.63\\\\\\=186655[/tex]

Answer is D using A = Pe^(rt).

Final answer:

To calculate the total amount of money in Seth's account after 2.5 years with compound interest, use the formula [tex]A = P(1 + r/n)^{(nt)[/tex], applying the given values to find a total of $2106.25 in the account.

Explanation:

To calculate the total amount of money in the account at the end of the 2.5 years with compound interest, we use the formula

[tex]A = P(1 + r/n)^{(nt)[/tex]

where A is the total amount, P is the principal amount, r is the annual interest rate, n is the number of times that interest is compounded per year, and t is the time the money is invested for.

For this case, P = $1890, r = 3.5% = 0.035, n = 1, and t = 2.5 years.

Plugging in these values gives [tex]A = $1890(1 + 0.035/1)^{(1\times 2.5)[/tex] = $2106.25.

Therefore, the total amount of money in the account at the end of 2.5 years is $2106.25.

Answer:

6,7,8,9,....

Step-by-step explanation:

the minimum width can be 5 because 9 times 5 is 45 the area using the formula length times width but the question is asking greater than 45 and 9 times any number greater than 5 is greater than 45

Answer:

W > 36

Step-by-step explanation:

i got it right on edgeinuity

Answer: b. $407.50

Step-by-step explanation:

Multiply 450 by 0.75= 337.5

add 60: 337.5+60=397.5

add 10: 397.5+10= 407.5

Therefore B) is the correct answer

Answer: OPTION C.

Step-by-step explanation:

First, it is important to remember the definition of "Suplementary angles".

By definition, two angles are supplementary if they add up 180 degrees.

Therefore, the measure of the supplement angle of 72 degrees can be found by setting up the following expression:

[tex]x+72\°=180\°[/tex]

Being "x"  the measure of the supplement angle of 72 degrees.

Finally, you need to solve for "x":

[tex]x=180\°-72\°\\\\x=108\°[/tex]

This matches with the option C.

Answer:

Step-by-step explanation:

Let s represent the number of Senators in the Congress. Then the number of Representatives is (5s-20) and the total number of members is ...

  s + (5s -20) = 520

  6s = 540 . . . . . . . . . add 20, simplify

  s = 90 . . . . . . . . . . . divide by 6

The number of Senators is 90; the number of Representatives is 430.

_____

You can find the number of Representatives either as 520 -90 = 430 or as 5·90 -20 = 430.

Answer:

3/10 or 0.3

Step-by-step explanation:

You have 3 red marbles and 10 marbles in total, so you put how many red marble in the numerator and your total marbles in the denominator.

Answer:

A.) 0.20

Step-by-step explanation:

There were 3+6+4+2 beds sold, or 15 beds sold

There were 3 twin beds sold

P(twin) = number of twin/ total

           = 3/15 = 1/5 = .2

Answer:

Option A. 0.20

Step-by-step explanation:

Observations from the given frequency table are :

Total number of beds sold at Cloud Nine Furniture = 3 + 6 + 4 + 2

                                                                                     = 15

Number of twin beds sold = 3

Then, probability that the next bed sold will be a twin bed,

[tex]P=\frac{\text{favorable outcome}}{\text{total number of possible outcomes}}[/tex]

  [tex]=\frac{3}{15}[/tex]

  = 0.20

Therefore, the probability that the next bed sold is a twin bed will be 0.20 or 20%.

Option A. is the correct answer.

Answer:

∠4

Step-by-step explanation:

An angle of depression is measured from the horizontal downwards.

This is ∠4 in the diagram

Answer:

The angle of depression from the light house to the boat is  <4

Step-by-step explanation:

From the figure we can see a light house and a boat.

The angle of depression means that angle from the horizontal downward to an object.

From the figure we can see that, <4 is the angle of depression from the light house to the boat.

Therefore the answer is <a

Answer:

Step-by-step explanation:

This problem is essentially one of finding the matching mean. The given means are ...

1. It should be no trouble to determine that the largest mean belongs to Cathy.

__

2. The mean is the average of the given 2SD limits, so is ...

  (67,785.08 +83,141.16)/2 = 75,463.12 . . . . matches Amanda

Please note that you only need to work with about 3 significant figures:

  (67.8 +83.1)/2 = 75.45 . . . . close enough to let you select Amanda

__

3. The mean is the average of the given 1SD limits, so is ...

  (70.1 +78.2)/2 = 74.15 . . . . matches Benjamin

Answer:

68% of their data lie  between $70,062.37 and $78,187.37

(1 SD from the mean) Benjamin

had the highest average monthly  commission during the past year Cathy

95% of their data lie between $67,785.08 and $83,141.16

(2 SD from the mean) Amanda

Step-by-step explanation:

Answer:

[tex]4x^2+26x-3 = 0[/tex]

Step-by-step explanation:

Given that the total area of Frame and Painting is 45 Sq Fts.

Dimensions of painting are 6 feet and 7 feet. Hence.

Let us assume the uniform thickness of frame is x

Hence the Length of frame with painting = 7+2x

and breadth = 6+2x

Area of the frame = length * breadth

[tex]45=(7+2x)(6+2x)\\45=42+14x+12x+4x^2\\45=42+26x+4x^2\\4x^2+26x+42-45\\4x^2+26x-3=0\\[/tex]

Hence option b is correct.

Answer: B) -  4x^2 + 26x − 3 = 0

Step-by-step explanation:

I got it right :)

Answer:

  x = 5

Step-by-step explanation:

Taking logarithms to the base 5, we get ...

   [tex]\log_x{7}=\log_5{7}[/tex]

Comparing forms gives x = 5.

Answer:

x=5

Step-by-step explanation:

Answer:

She has $10 left.

Step-by-step explanation:

There are 13 tags. Every tag is 5$.

13 tags times 5 dollars equals 65 dollars spent.

75 dollars minus 65 dollars spent = 10 dollars left.

Ruby has 10 dollars left.

Ruby is left with 10 dollars. .

Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter. Each object in a graph is called a node.

Ruby had a budget of up to $75 dollar to spend.

Total tags=13

Each tag is $5.

So,

Ruby spent on 13 tags

= 13*5

= $65

Thus, Ruby left with

=75 - 65 dollars

= 10 dollars.

Hence, Ruby has 10 dollars left.

Learn more about graph here:

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[tex](f\cdot g)(x)=(9x+1)\cdot x^3=9x^4+x^3[/tex]

Answer:

Part 1: The polygon ABCDE reflected across y-axis to get the polygon MNOPQ. So, the polygon ABCDE congruent to polygon MNOPQ.

Part 2: The vertices of polygon VWXYZ are V(1, 3), W(-1, 7), X(-7, 7), Y(-5, 3), and Z(-3, 1).

Step-by-step explanation:

Part 1:

The vertices of the polygon ABCDE are A(2, 8), B(4, 12), C(10, 12), D(8, 8), and E(6, 6).

The vertices of the polygon MNOPQ are M(-2, 8), N(-4, 12), O(-10, 12), P(-8, 8), and Q(-6, 6).

We need to find the transformation or sequence of transformations that can be performed on polygon ABCDE to show that it is congruent to polygon MNOPQ.

The relation between the vertices of ABCDE and MNOPQ are defined as

[tex](x,y)\rightarrow (-x,y)[/tex]

It means the polygon ABCDE reflected across y-axis to get the polygon MNOPQ. So, the polygon ABCDE congruent to polygon MNOPQ.

Part 2:

If polygon MNOPQ is translated 3 units right and 5 units down, then

[tex](x,y)\rightarrow (x+3,y-5)[/tex]

[tex]M(-2,8)\rightarrow V(-2+3,8-5)=V(1,3)[/tex]

[tex]N(-4,12)\rightarrow W(-4+3,12-5)=W(-1,7)[/tex]

[tex]O(-10,12)\rightarrow X(-10+3,12-5)=X(-7,7)[/tex]

[tex]P(-8,8)\rightarrow Y(-8+3,8-5)=Y(-5,3)[/tex]

[tex]Q(-6,6)\rightarrow Z(-6+3,6-5)=Z(-3,1)[/tex]

Therefore the vertices of polygon VWXYZ are V(1, 3), W(-1, 7), X(-7, 7), Y(-5, 3), and Z(-3, 1).

Answer:

7x = 2x + r

Step-by-step explanation:

On the left side you have 7 boxes.  So let's call those boxes "x" and we have 7x.

On the right side we have 2 of them, 2x, and 1 r.

Putting them together gives you

7x = 2x + r

Answer: Half of 1/3 would be 1/6 :)

The decimal form of it would be 0.166666

ANSWER

[tex] \frac{1}{6} [/tex]

EXPLANATION

The given fraction is

[tex] \frac{1}{3} [/tex]

We want to find half of this fraction.

We can write this expression mathematically as:

[tex] \frac{1}{2} \: of \: \: \frac{1}{3} [/tex]

The 'of' in this expression means multiplication.

This implies that

[tex] \implies \: \frac{1}{2} \: of \: \: \frac{1}{3} = \frac{1}{2} \: \times \: \: \frac{1}{3} [/tex]

[tex] \implies \: \frac{1}{2 } \: of \: \: \frac{1}{3} = \frac{1 \times 1}{2 \times 3} [/tex]

We multiply out to get

[tex] \implies \: \frac{1 }{2} \: of \: \: \frac{1}{3} = \frac{1}{6} [/tex]

We can solve this problem using a Pythagorean theorem.

[tex]c^2=a^2+b^2[/tex]

Where a is 7 and b is 4 and c is the hypothenuse we are looking for.

[tex]

c^2=7^2+4^2\Longrightarrow c=\sqrt{49+16}=\boxed{8.06}

[/tex]

The length of the third side is approximately 8.

Hope this helps.

r3t40

[tex]\bf \textit{difference and sum of cubes} \\\\ a^3+b^3 = (a+b)(a^2-ab+b^2)~\hfill a^3-b^3 = (a-b)(a^2+ab+b^2) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ x^3-125=0\implies x^3-5^3=0\implies (x-5)(x^2+5x+5^2)=0 \\\\[-0.35em] ~\dotfill\\\\ x-5=0\implies \boxed{x=5} \\\\[-0.35em] ~\dotfill\\\\ ~~~~~~~~~~~~\textit{quadratic formula}[/tex]

[tex]\bf \stackrel{\stackrel{a}{\downarrow }}{1}x^2\stackrel{\stackrel{b}{\downarrow }}{+5}x\stackrel{\stackrel{c}{\downarrow }}{+25} \qquad \qquad x= \cfrac{ - b \pm \sqrt { b^2 -4 a c}}{2 a} \\\\\\ x=\cfrac{-5\pm\sqrt{5^2-4(1)(25)}}{2(1)}\implies x=\cfrac{-5\pm\sqrt{25-100}}{2} \\\\\\ x=\cfrac{-5\pm\sqrt{-75}}{2}~~ \begin{cases} 75=&3\cdot 5\cdot 5\\ &3\cdot 5^2 \end{cases}\implies x=\cfrac{-5\pm\sqrt{-3\cdot 5^2}}{2}[/tex]

[tex]\bf x=\cfrac{-5\pm 5\sqrt{-3}}{2}\implies x=\cfrac{-5\pm 5\sqrt{-1\cdot 3}}{2}\implies x=\cfrac{-5\pm 5\sqrt{-1}\cdot \sqrt{3}}{2} \\\\\\ x=\cfrac{-5\pm 5i\sqrt{3}}{2}\implies \boxed{x= \begin{cases} \frac{-5+ 5i\sqrt{3}}{2}\\\\ \frac{-5-5i\sqrt{3}}{2} \end{cases}}[/tex]

To solve the complex number equation x^3-125=0, we rearrange to x^3=125 and apply the rule for cube roots in the complex system. This yields three solutions: x = 5, x = 5*omega, and x = 5*omega^2.

The given equation is x^{3}-125=0. It belongs to the category of complex number equations within the complex system. We can solve this equation step-by-step by using the cube root of unity in the complex number system.

Firstly, move '125' to the right side of the equation: x^{3}=125. We find that x is the cube root of 125. The solutions to this kind of equation are given by a rule in the complex number system that the cube roots of a number a are given by [a^(1/3), a^(1/3)*omega, a^(1/3)*omega^2], where omega is a cube root of unity and equals -1/2+sqrt(3)i/2 and omega^2=-1/2-sqrt(3)i/2 .

Therefore for x^{3}=125, we get x = 5, 5*omega, and 5*omega^2. These are the solutions in the complex number system.

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Answer:

1. 30ft

2. 0.4 min

Step-by-step explanation:

In this question, apply sine law which states that sine Ф= opposite/hypotenuse

The general formulae; is SOHCAHTOA where ;

(SOH) sineФ=opposite/hypotenuse  ; (COH) cosine Ф= adjacent/hypotenuse and (TOA) tan Ф=opposite/adjacent

In the question the height of the two floors is the " c" and the angel at the base is 60° and distance the conveyor travels is the hypotenuse

Hence;

[tex]Sin 60= \frac{26}{H} \\\\\\H=\frac{26}{Sin60} \\\\\\H=30 ft[/tex]

If 75ft=1min

  30ft=?........................simple math

30/75 = 0.4 minutes

Answer:

i) 30 ft

ii) 0.4 min

Step-by-step explanation:

i)

The question will be modeled by a right-angled triangle where-by;

The length of the conveyor belt will represent the Hypotenuse

The vertical distance which is 26 feet high will be the Opposite side to the angle the belt makes the ground which is given as 60 degrees.

The horizontal distance which is the ground will be the Adjacent side to the angle 60 degrees.

Therefore, we have a right angled triangle in which one angle and the length of the opposite side are given. To determine the length of the conveyor belt, the hypotenuse, we use the sine definition of an acute angle;

Remember the mnemonic. SOHCAHTOA

sine 60 = (opposite side)/(hypotenuse)

Hypotenuse = (opposite side)/sin 60

Hypotenuse = 26/sin 60

Hypotenuse = 30.02

The supplies thus travel 30 ft from one end of the conveyor belt to the other.

ii)

The speed of the belt is given as 75 ft/min

The length of the belt has been found to be approximately 30 ft

We are required to determine the time it takes for the supplies to move to the second floor.

Distance, Time and speed are related according to the following equation;

Distance = Time * Speed

Time = Distance/Speed

Time = 30/75

Time = 0.4 min

Answer:

  (x < -1) ∪ (6 < x)

Step-by-step explanation:

Divide by 3

  |2x -5| > 7

"Unfold." That is, put the negative of the constant value on the other side of the absolute value expression, using the same inequality symbol.

  -7 > 2x -5 > 7 . . . . . . . . . . this notation is convenient for expressing the two disjoint inequalities, but is not strictly correct because it is not true that -7 > 7.

Add 5, then divide by 2

  -2 > 2x > 12

  -1 > x > 6 . . . . . . . . . . this should be interpreted as -1 > x OR x > 6. Usually a compound inequality is interpreted as having an AND connector.

The solution is ...

  (x < -1) ∪ (6 < x)

_____

The more correct (and less convenient) way to "unfold" the absolute value is to write it as two distinct inequalities:

Each of these is then separately solved (by adding 5 and dividing by 2) to get ...

Answer:

Option A is correct.

Step-by-step explanation:

The following matrix represent the augmented matrix

In augmented matrix the left side represent the co-efficient of the variables and right side represent the value of variables.

Since the matrix has been solved and reduced so, the solution of variables x, y and z is written on right side of augmented matrix

The given matrix is:

[tex]\left[\begin{array}{cccc}1&0&5&-2\\0&0&3&0\\0&0&0&-1\end{array}\right][/tex]

Since the last row is all zero and we have a non zero entry for the solution, the matrix is inconsistent.

As the variables have zero values, there cannot be any solution

So, there is no solution.

So, Option A is correct.

Answer:

A) No solution!

Step-by-step explanation:

Edge 2021 :)

Answer:

Step-by-step explanation:

1) add the total number of male student

=14

2) divide the number of juniors by the total

2/14 = 1/7 = 0.14285

3)Multiply by 100 to get percentage

0.14285*100=14.285

4)Round

this rounds down to 14%

Answer:

If she gives all the earnings to her sister she would still own her $9.30

Step-by-step explanation:

Subtract the $25.63 (sisters' money) fromv $16.33(earnngs from her dad) then you get 9.30

Answer:

$9.30

Step-by-step explanation:

Answer:

Step 3

Step-by-step explanation:

when solving by completing the square you are supposed to do (b/2)^2 and then add that to both sides.

In your example (-8/2)^2=16

You are supposed to add sixteen to both sides not 64

Susu forgot to divide 8 by 2 before she raised it to the to the second powerm that is why she got 64, which is incorrect.

Answer:

Step 2

Step-by-step explanation:

Susu is solving the quadratic equation [tex]4x^2 - 8x - 13 = 0[/tex] by completing the square

To apply completing the square method we need to get x^2 alone

Susu added 13 on both sides . So step 1 is correct

When we factor out 4, we divide both terms by 4

[tex]4(\frac{4x^2}{4} -\frac{8x}{2} )=13[/tex]

[tex]4(x^2-2x)=13[/tex]

Susu forgot to divide 8 by 4

So , error in step 2

Answer:

$3.14

Step-by-step explanation:

Original cost = $2.85

new cost is 110% of original cost

or

new cost is [tex]\frac{110}{100}[/tex] x original cost

= [tex]\frac{110}{100}[/tex] x $2.85

= $3.135

= $3.14 (rounded to nearest cent)

Answer:

D/ 3.14

Step-by-step explanation:

Answer:

B Step 2

Step-by-step explanation:

he was suppose to collect the like terms

5x +x = 5x + 1x

collect the like terms by adding their coefficients

(5 + 1)

add the numbers

(5+1)x = 6x

Answer:

  A.  Step 1

Step-by-step explanation:

The correct result of eliminating parentheses in Step 1 is ...

[tex]\dfrac{5x+10-8+x}{2}[/tex]

Distributing the minus sign in the second term changes the signs of both of the terms in parentheses:

  -(8 -x) = -8 +x

Answer:

m∠ABC = 120°

Step-by-step explanation:

Consider the case where point C is on the circle and long arc AC has measure 240°. Then ∠ABC is an inscribed angle, and its measure is half the measure of the intercepted arc, so is 120°.

This is still true even when point B and point C are on top of each other and BC is a tangent to the circle. That is the case shown here, so m∠ABC = 120°.

Answer:

Rebecca have 18 nickels coins and 27 dime coins

Step-by-step explanation:

Remember that

1 nickel =$0.05

1 dime=$0.10

so

Let

x -----> the number of nickel coins

y -----> the number of dime coins

we know that

x+y=45

x=45-y ------> equation A

0.05x+0.10y=3.60 -----> equation B

Solve the system by substitution

Substitute equation A in equation B and solve for y

0.05(45-y)+0.10y=3.60

2.25-0.05y+0.10y=3.60

0.05y=3.60-2.25

0.05y=1.35

y=27

Find the value of x

x=45-y ---->x=45-27=18

therefore

Rebecca have 18 nickels coins and 27 dime coins

Rebecca has 18 nickels and 27 dimes.

Solving the Problem

Rebecca has 45 coins, composed of nickels and dimes, with a total value of $3.60. We can set up a system of linear equations to solve this problem.

Step-by-Step Explanation

Therefore, Rebecca has 18 nickels and 27 dimes.