subtract 6x 2 −7x−2 from 6x^{2}-2x+6

Answer:

Step-by-step explanation: The answer is 5/11.



Hello!

Fraction of boys = Number of boys / Total kids

Fraction of boys = [tex]\boxed {\frac{5}{11}}[/tex]

The graph that has been drag into the box in the image attached are the options that shows the results of that transformation.

Note that there are 4 types of function transformations which are are:

Therefore, The function above is known to have passed through the following points

(1,1) and (0,-1)

The graphs of the functions

(a) Function g(x)

The equation of the function is given as: g (x) = 2 + f (x)

This implies that f(x) is said to be translated up by 2 units.

The graph that shows this is graph (b)

(b) Function h(x) = f (x + 2)

This implies that f(x) is translated left by 2 units.

The graph that shows this is graph (e)

(c) Function k(x)  = f (x) -2

This implies that f(x) is translated down by 2 units.

The graph that shows this is graph (c)

(d) Function m(x) =  f (x - 2)

This implies that f(x) is translated right by 2 units.

The graph that depicts this is graph (f)

Therefore,  The graph that has been drag into the box in the image attached are the options that shows the results of that transformation.

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The following logarithmic expression can be used to approximate the given expression,

[tex]\frac{log_{b} x}{log_{b} a}[/tex]

Finding the Logarithmic Expression

It is given that for all positive numbers a, b, and x on the condition that a≠1 and b≠1.

Now, for positive values of m and n, we have the following logarithmic expression,

[tex]\frac{log_{m} x}{log_{n} a}[/tex]

Here, m, n and x are all positive numbers.

The logarithmic property imposes that m and n are not equal to 1.

So, by substituting the values m and n by a and b respectively, we get the following logarithmic expression,

[tex]\frac{log_{b} x}{log_{b} a}[/tex]

Therefore, [tex]\frac{log_{b} x}{log_{b} a}[/tex] is the required expression.

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Answer:

353.9 + 3.8 = 357.7 million barrels of oil

Probability helps us to know the chances of an event occurring. The correct option is A.

Probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

The probability of getting a heart from the first deck is 13/52. And the probability of getting a diamond from the second deck is 13/52. The probability of getting a heart from the first deck and then a diamond on the second deck is,

Probability = (13/52) × (13/52) = 0.0625 = 6.25%

Hence, the correct option is A.

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The probability that the mean of a sample of 106 randomly selected humans is lower than 98.5°F is 4.85%

An equation is an expression that shows the relationship between two or more numbers and variables.

Z score is given as:

z = (raw score - mean) ÷ (standard deviation/√sample size)

Given mean of 98.6°F,  standard deviation is 0.62°F, sample size = 106

For x < 98.5:

z = (98.5 - 98.6) ÷ (0.62÷√106) = -1.66

P(z < -1.66) = 0.0485

The probability that the mean of a sample of 106 randomly selected humans is lower than 98.5°F is 4.85%

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Answer:

2.45 units

5 units

5.99 units

5.10 units

By solving a system of equations, we see that:

x = 89 and y = 98.

First, we can write:

x = a*10 + b

y = b*10 + c

Where a, b, and c are single digit numbers. You can see that b is on both numbers because we know that the numbers share a digit, but on different order.

We also know that:

x + y = 187

a + b + b + c = 34

I we rewrite the first equation, we get:

(a*10 + b) + (b*10 + c) = 187

10a + 11b + c = 187

Then we have two equations:

a + 2b + c = 34

10a + 11b + c = 187

In both equations we can isolate c:

34 -2b -a = c

10a + 11b - 187 = c

Now we have:

-a - 2b + 34  = -10a - 11b + 187

Solving that, we get:

9a + 9b = 153

a + b = 153/9 = 17

Then a and b add up to 17, we can take:

a = 8

b = 9

And:

c = -a - 2b + 34 = -8 - 9 - 9 + 34 = 8

Then the numbers are:

x = 89

y = 98

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Answer: -5

Step-by-step explanation:

[tex]\frac{g(6)-g(3)}{6-3}=\frac{44-59}{3}=-5[/tex]

Answer:

18.54

Step-by-step explanation:

sine is opposite/hypotenuse, and you have opposite (b=15), so use that

sin(54) = 15/c

c = 15/sin54

then use calculator

c = 18.54

Answer:

y = - x + 10

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (6, 4 ) and (x₂, y₂ ) = (8, 2 )

m = [tex]\frac{2-4}{8-6}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1 , then

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (6, 4 ) , then

4 = - 6 + c ⇒ c = 4 + 6 = 10

y = - x + 10 ← equation of line

The solution to the graph is the yellow area highlighted in the graph. The point (2, 0) is a solution since it lies on the yellow area.

An equation is an expression that shows the relationship between two or more variables and numbers.

The compound inequality represented by the graph is y ≥ 2x - 4, x > -3 and y < 5.

The solution to the graph is the yellow area highlighted in the graph. The point (2, 0) is a solution since it lies on the yellow area.

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Answer:

x = 2

Step-by-step explanation:

AB is given as 3(3x-1) multiply inside the parenthesis with 3

AB = 9x - 3

AC is given as 5(2x+2) multiply inside the parenthesis with 5

AC = 10x + 10

if B is midpoint of AC then AB = BC and AC = AB + BC if we write this equation using the given values

9x - 3 + 9x - 3 = 10x + 10 add like terms

18x - 6 = 10x + 10 transfer like terms to the same side of the equation

18x - 10x = 10 + 6

8x = 16 divide both sides by 8

x = 2 replace x with 2 in given expressions to find the value of each component

Answer:   x = 2; AB = 15; BC = 15; AC = 30

Step-by-step explanation:

AB = BC = 3(3x - 1) = 9x - 3

AC = 5(2x + 2) = 10x + 10

AB + BC = AC

(9x - 3) + (9x - 3) = 10x + 10

   9x - 3 + 9x - 3 = 10x + 10

               18x - 6 = 10x + 10

                8x - 6 = 10

                      8x = 16

                        x = 2

Plug x = 2 to find AB, BC, and AC.

AC = BC = 3(3x - 1) = 9x - 3 = 9(2) - 3 = 18 - 3 = 15

AC = 5(2x + 2) = 10x + 10 = 10(2) + 10 = 20 + 10 = 30

Answer:

1.15 or [tex]\frac{15}{13}[/tex]

Step-by-step explanation:

1. The slope can be found with this formula: [tex]\frac{y2-y1}{x2-x1}[/tex]

2. Let's plug in the numbers: [tex]\frac{14--1}{13-0}[/tex]

4. [tex]\frac{15}{13}[/tex] ≈ 1.1538

By using the definition of similarity between triangles and algebraic properties, the length of the segment AB of the system is equal to 4 units.

In this problem we have two similar triangles and we need first to determine the lengths of segments AC and BC and then subtract the length of the latter from the length of the former, that is:

AC/BC = CE/CD

AC/2 = 15/5

AC = 6

AB = AC - BC

AB = 6 - 2

AB = 4

By using the definition of similarity between triangles and algebraic properties, the length of the segment AB of the system is equal to 4 units.

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To find Y-intercept, the x-value must be 0.

In the table you can see x = 0 and y = -4

so, the y-intercept of this line is (0 -4)

Hope it helps!

Answer:

y = -2x+2

Step-by-step explanation:

See attached image

The probability that the person uses the gym and track but not the pool is; 1/5.

According to.the task content, it follows that 31 people use the gym and track while 4 people use all three facilities.

Hence, it follows that; 31-4 = 27 people use the gym and track but not the pool. On this note, the required probability is; 27/135 = 1/5.

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Construction is a process in which required steps are considered to draw a given shape by the use of construction instruments and materials. Thus to correct the error in the given question, the third arc should be drawn centered at point F. Answer is option A.

Majorly, the use of a straight edge and a pair of compasses to draw the image of a given object is referred to as construction. Which required adhering to some steps.

The construction of a parallel line through a given point to a given line involves following the appropriate procedure. If not, an error would be committed which would result in an inappropriate shape or figure.

Therefore, to fix the error in the given question, it is important that the third arc should be drawn centered at point F. Thus, the correct answer is option A.

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Using the normal distribution, it is found that the operating cost for the lowest 3% of the airplanes is of at most $1,630.

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The mean and the standard deviation are given, respectively, by:

[tex]\mu = 2100, \sigma = 250[/tex].

The operating cost for the lowest 3% of the airplanes is of at most the 3rd percentile, hence at most X when Z = -1.88.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]-1.88 = \frac{X - 2100}{250}[/tex]

X - 2100 = -1.88(250)
X = 1630.

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What is initial value?

It is given that,

The height of the palm tree at the time Myles bought it was 62 inches.

He is tracking the growth of the tree and he has observed that it has grown 6 inches per year.  

So, the initial value of the tree, here, is representing the height of the palm tree when it was bought.

As can be seen clearly, there is no input for the initial value. And, the output for the initial value is given to be 62 inches.

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Answer:

n(AnB)= {4, 29}

n(BnC)= {9,29}

n(AnC)= {29}

Change in Amplitude is 2

Change in Period is π

Transforming sin(x) to [tex]3sin(\frac{2x}{3})[/tex]

y = a(sin(bx+c)) + d

Where, a is Amplitude and [tex]\frac{2}{b}[/tex]π is period

Amplitude of sin(x) =1

Period of sin(x) = 2π

Amplitude of 3sin([tex]\frac{2x}{3}[/tex]) = 3

Period of 3sin([tex]\frac{2x}{3}[/tex]) = [tex]\frac{2}{\frac{2}{3}}[/tex]*π = 3π

Change in Amplitude = 3sin([tex]\frac{2x}{3}[/tex]) - sin(x)

                                    = 3 - 1

                                    = 2

Change in Period = 3sin([tex]\frac{2x}{3}[/tex]) - sin(x)

                              = 3π - 2π

                               = π

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Answer: B

Step-by-step explanation:

For this problem, I will be using the equal sign instead of the congruent sign for segments.

1) AC = AB, CD = DE, m∠ABC = 70°, m∠ECB = 35° (given)

2) ∠ACB is congruent to ∠ABC (base angles theorem)

3) m∠ACB = 70° (congruent angles have equal measure)

4) m∠DCE = 35° (angle subtraction postulate)

5) ∠DCE and ∠DEC are congruent (base angles theorem)

6) m∠DEC = 35° (congruent angles have equal measure)

7) ∠DEC is congruent to ∠ECB (angles with the same measure are congruent)

8) DE is parallel to BC (if two lines are cut by a transversal and the alternate interior angles are congruent, then the lines are parallel)

Answer:

[tex]\huge\boxed{\sf (f-g)(x) = 3x\² + 4x - 14}[/tex]

Step-by-step explanation:

Subtract both functions

(f-g)(x) = 4x² - 6 - (x² - 4x - 8)

(f-g)(x) = 4x² - 6 - x² + 4x - 8

Combine like terms

(f-g)(x) = 4x² - x² + 4x - 6 - 8

(f-g)(x) = 3x² + 4x - 14

[tex]\rule[225]{225}{2}[/tex]

Given: f(x)=4x^2-6f(x)=4x2−6g(x)=x^2-4x-8g(x)=x2−4x−8

To find : (f-g)(x)

(f-g)(x)=f(x)-g(x)(f−g)(x)=f(x)−g(x)

(4x^2-6)-(x^2-4x-8)

Using Distributive property:-

4x^2-6-x^2+4x+8

4x^2-x^2+4x+8-6

Combine like term

3x^2+4x+2

(f-g)(x)=3x^2+4x+2

Hence, The composite function is (f-g)(x)=3x^2+4x+2

20 girls and 30 boys

A branch of mathematics that deals usually with the nonnegative real numbers including sometimes the transfinite cardinals and with the application of the operations of addition, subtraction, multiplication, and division to them

To make the new situation:

Suppose A classroom has 50 people.

The ratio of girls to boys is 2:3, so in other words, we need to find out how many boys and girls there are, and there are 2 girls for every three boys, So ,how many boys and girls are there?

The answer would be :

Let the two parts in which we divide 50 be 2x and 3x respectively

2x+3x=50

5x=50

x= [tex]\frac{50}{5}[/tex]

x=10

Here,

2x= 2×10=20

3x =3*10=30

20 girls and 30 boys.

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The expansion of the given expressions are; 4x² - 5x - 5;  2x² - 13x + 15; -2x² - 5x + 3; 3x² + 6x - 1

A) x(x - 5) + 3x² - 5

Expanding this gives us;

x² - 5x + 3x² - 5

⇒ 4x² - 5x - 5

B) (2x - 3)(x - 5)

Expanding the function gives;

⇒ (2x² - 3x - 10x + 15)

⇒ 2x² - 13x + 15

C) -2x(x + 3) + x + 3

⇒ -2x² - 6x + x + 3

⇒ -2x² - 5x + 3

D) 3(x + 1)² - 4

⇒ 3(x² + 2x + 1) - 4

⇒ 3x² + 6x + 3 - 4

⇒ 3x² + 6x - 1

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The rigid transformations which will map the triangle ABC to triangle DEF is; Translate vertex A to vertex D, and then rotate△ABC around point A to align the sides and angles.

It follows from the task content that the two triangles given are △ABC to △DEF.

Hence, in a bid to map the triangle ABC to DEF, Vertex A is translated to point D which represents vertex D in△DEF. Afterwards, the triangle ABC is simply rotated about the translated vertex A until all sides and angles of both triangles align.

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