if h(x)= 1-7x find the value of 23-h(9)=

The number of ways to form the committees, using the Fundamental Counting Theorem, are given as follows:

a) President and vice from different grades: 79,800.

b) At least one from each: 141,960.

It is a theorem that states that if there are n independent trials, each with [tex]n_1, n_2, \cdots, n_n[/tex] possible results, the total number of outcomes is calculated by the multiplication of the factorials as presented as follows:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

For item a, there are two possible cases for the parameters, as follows:

Hence the number of ways is:

N = 7 x 15 x 20 x 19 + 15 x 7 x 20 x 19 = 79,800.

For item b, the total number of outcomes is obtained as follows:

N = 22 x 21 x 20 x 19 = 175,560.

The number of outcomes with only grade 11 students is:

N = 7 x 6 x 5 x 4 = 840.

The number of outcomes with only grade 12 students is:

N = 15 x 14 x 13 x 12 = 32760.

Hence the number of students with at least one of each is:

N = 175,560 - (840 + 32,760) = 141,960.

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The required equation of g(x) for reflection of f(x)=x-2 across the y-axis is g(x)=-x-2.

Reflection is basically a mirror image of the shape, in which the image of a given figure changes accordingly to a given line or axis.

Given that,

f(x)=x-2

To find the required equation  for g(x) that is reflected across the y-axis, Use reflection property,

According to reflection property,

Reflection Across the y-axis, the x change in -x and the remaining part of the equation remains same.

The equation of f(x) changes in g(x) as g(x)=-x-2,

So, the equation of g(x)=-x-2 .

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Answer:_______________________________________________

-0.5

Answer:

224.50

-225.00

$0.50

- 50 cents

Answer:

Step-by-step explanation:

2+2=4

4+5=9

0+9=9

Answer:

4, 9 , 9 OR 4 + 9 + 9 = 22

Step-by-step explanation:

Proved that the triangle ABW ≅ triangle DCW

In the given question,

The length of WA = The length of WD

The measure of angle 5 = The measure of angle 7

Here we have to prove that one angle and two sides of the triangle ABW is equal to the one angle and two sides of the triangle DCW

Consider the triangle ADW,

In the triangle ADW the length of the WA is equal to the length of WD.

Therefore the measure of angle A is equal to the measure of angle D.

So in triangle ABW and the triangle DCW, one side and two angles are equal.

Therefore the triangle ABW and triangle DCW are congruent

Hence, proved that the triangle ABW ≅ triangle DCW

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The size of the moose population, 65 + (48-14)=99.

acc to our question-

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The ordered pair could be removed to make this relation a function is (4,-2).

What is an ordered pair?

An ordered pair is made up of the ordinate and the abscissa of the x coordinate, with two values given in parenthesis in a certain sequence.

The numeric values in an ordered pair can be integers or fractions.

Here,

A function is when each input has one output. So, for every x there is one y. The x values can not repeat.

But in the given value x is repeating so the ordered pair (4, -2) can be removed.

Hence, the ordered pair could be removed to make this relation a function is (4,-2).

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A graph of a quadratic function is a parabola, making an equation of a parabola with help of an x-intercept and vertex can be formed.

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
With the help of the vertex and the x-intercept, the equation of the parabola can be formed which helps to graph a quadratic function because the equation of the parabola resembles the quadratic function,

Thus,  a graph of a quadratic function is a parabola, making an equation of a parabola with help of an x-intercept and vertex can be formed.

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Answer: 324

Step-by-step explanation: 10% is the same as 1/10

360/10 is 36

360-36= 324

meaning 324 students now attend Haley elementary school <3

hope this helps <33

The cost the tiles are = $182.55

acc to our question-

white tiles =W = 1/4

3/5 = yellow

each tile costs= $3

= 0.25+ 0.6+ 60

= 60.85*3

$182.55

hence,The cost the tiles are = $182.55

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The pairs of events, A and B, that are disjoint include option A and B.

It should be noted that disjoint events simony means the events that are mutually exclusive as they can't occur at the same time.

For option A, because a person can be either male or female but not both, events A and B are disjoint.

For B, because the person already earns more than $100,000, events A and B are not disjoint.

For C, because the sum of two dice cannot be three when one die is three, events A and B are disjoint.

Therefore, A and C are disjoint.

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Complete question

Which of the following pairs of events, A and B, are disjoint?

(a) A person is selected at random. A is the event "sex of the person selected is male" and B is the event "sex of the person selected is female."

disjoint / not disjoint

(b) A person is selected at random. A is the event "the person selected earns more than $100,000 per year" and B is the event "the person selected earns more than $250,000 per year."

disjoint / not disjoint

(c) A pair of dice are tossed. A is the event "one of the dice is a 3" and B is the event "the sum of the two dice is 3."

disjoint / not disjoint

Answer:

Step-by-step explanation:

Yeah you have the correct answer.

In the original line you solve for y where the slope is given -3.

Then it is up to you but I like using the point slope formula so I'll plug in the values and the result is the same as the picture.

y-y=m(x-x)

y-(-6)=-3(x-1)

38 sets

474 - 246 = 228

228 ÷ 6 = 38

Answer:

Step-by-step explanation:

Answer:

134.77

Step-by-step explanation:

Round 134.76821 to the nearest hundredth

by placing each number in reference to what they represent.

1 - hundreds

3 - Tens

4 - units

.7=Tenth

.76=Hundredth

.768=Thousandth

.7682=Ten Thousandth

.76821= Hundred Thousandth

Nearest hundredth will be

134.[76]821

since 2,1 are both round down numbers they will produce approximately 0

since 8 is a round off number it will produce approximately 10

134.77000

or 134.77

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Answer:

14-3x=25

Step-by-step explanation:

-3x=25+14

-3x=39

-3 -3

x = -13

The factor of the difference of two squares (x + 2)² - (y - 2)² is (x + y)(x - y + 4).

If for any two squares say a² and b², then their difference a² - b² = (a + b)(a - b).

Given the two squares (x + 2)² and (y - 2)²

then their difference will yeild the factors derived as follows;

(x + 2)² - (y - 2)² = [(x + 2) + (y - 2)][(x + 2) - (y - 2)]

open brackets

(x + 2)² - (y - 2)² = (x + 2 + y - 2)(x + 2 - y + 2)

collect like terms

(x + 2)² - (y - 2)² = (x + y + 2 - 2)(x - y + 2+ 2)

so

(x + 2)² - (y - 2)² = (x + y)(x - y + 4)

Thus, by application of the rule of difference of two squares, we have the factors of (x + 2)² - (y - 2)² to be (x + y 2 - 2) and (x - y + 2+ 2).

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The speed of the current is 9 miles per hour

Given that: the motorboat maintained a constant speed of 11 miles per hour relative to the water in going 10 miles upstream and then returning.

Total time = 5.5 hours

Let s = speed of the current

speed downstream relative to land =  11 + s

speed upstream relative to the land = 11 - s

speed = distance/time

time = distance/speed

upstream time + downstream time = total time

10/11-s  + 10/11+s = 5.5      (find LCM of 11-s and 11+s)

10(11+s) + 10(11-s) /(11-s)(11+s)  = 5.5

110+10s+110-10s /(11-s)(11+s)  = 5.5

220 = 5.5(11-s)(11+s)

220 = 5.5(121 - 11s + 11s - s²)

220 = 5.5(121 - s²)

220 = 665.5 - 5.5s²

5.5c² = 665.5 - 220

5.5c² = 445.5

s² = 445.5/ 5.5

s² = 81

s = √81 = 9

Therefore, the speed of the current is 9 miles per hour

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-353.92-(-283.56)-131.29= -20,165

The highest value you would still hold the stock is $23.97

From the question, the given parameters about the distribution are

Mean value of the set of data = $26.94

Standard deviation value of the set of data = $3.54

Proportion = Highest 20%

This means that the p value is

p = 20%

Express as decimal

p = 0.2

At a p value of 0.2, the z-score is

z = -0.84

The z-score of the data value is calculated using the following formula

z = (x - mean value)/standard deviation

Substitute the given parameters in the above equation

-0.84 = (x - 26.94)/3.54

Cross multiply in the above equation

So, we have

x - 26.94 = -0.84 * 3.54

Evaluate the products

x - 26.94 = -2.97

Add 26.94 to both sides of the equation

So, we have the following representation

x = 26.94 -2.97

Evaluate the difference

x = 23.97

Hence, the highest value is 23.97

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The simplified expression is 3a + 5ay - 3y -52 .

(a) There are 4 terms in the simplified expression

(b) there are 2 negative terms in the simplified expression .

In the question ,

the algebraic expression is given as 3a+2y+5ay-2y-52-3y

to simplify it , we first group them in like terms

the expression becomes .

= 3a [tex]+[/tex] 2y [tex]+[/tex] 5ay -2y - 52 -3y

= 3a + 5ay + 2y - 2y - 3y - 52

= 3a + 5ay - 3y -52

Part(a)

the number of terms in the simplified expression is 4 ,

Part(b)

as we can see that the terms -3y and  -52 are negative

So , there are 2 negative terms in the expression.

Therefore , (a) There are 4 terms in the simplified expression

(b) there are 2 negative terms in the simplified expression .

The given question is incomplete , the complete question is

Write the expression 3a+2y+5ay-2y-52-3y in simplest form. Then, answer the following questions using complete sentences.

a. How many terms are in the simplified expression?

b. How many of the terms in the simplified expression are negative?

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The paper company can produce 25 notebooks for $285

From the question, the equation of the total cost is given as

Equation = 4x + 185

Rewrite as

Cost = 4x + 185

Express the equation as a cost function

So, we have the following representations

C(x) = 4x + 185

When the total cost is $285, we have

C(x) = 285

This gives

4x + 185 = 285

Subtract 185 from both sides

4x = 100

Divide by 4

x  = 25

Hence, the number of notebooks is 25

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Answer:A rational number is a number thats a quotient or fraction

Step-by-step explanation:

4\6 would be a rational number 8 over 4 as well.

Answer:

$10,000 invested at 5%

$20,000 invested at 8%

Step-by-step explanation:

1. Let x = the amount of money invested at 5%, and y = the amount of money invested at 8%.

   x + y = 30,000 (the total amount invested)

   0.05x + 0.08y = 2,100 (the total interest earned)

2. Solve the system by whatever method you choose.

The number of ways to select 3 position out of 10 applicant is 120 ways

Combinations implies the selection of things from a given set of things. In this case, we intend to select the objects. Combination formula is illustrated as:

nCr = n! / ((n – r)! r!)

n = the number of items.

r = how many items are taken at a time.

Since there are 10 applicants applying for 3 positions. This will be:

= 10! / (10 - 3)!3!

= 10! / 7!3!

= 10 × 9 × 8 / 3 × 2

= 120

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The generalized rule of the indices to be negative fraction can be written as [tex]a^{-m/n} =(\sqrt[n]{a})^{-m}[/tex].

Index (indices) in Maths is the power or exponent which is raised to a number or a variable.

An algebraic expression is a quantity made up of symbols and processes + - / and multiplication Expressions utilizing indices are made simpler using the laws of indices.

Let's consider a negative fraction exponent as, [tex]a^{-m/n}[/tex]

[tex]a^{-m/n}=1/a^{m/n}[/tex]

Since,[tex]a^{-m/n} =(\sqrt[n]{a})^{-m}[/tex]

Therefore, the above expression converts as,

[tex]a^{-m/n} =1/(\sqrt[n]{a})^{-m}[/tex]

[tex]a^{-m/n} =(\sqrt[n]{a})^{-m}[/tex]

Hence "The generalized rule of the indices to be negative fraction can be written as  [tex]a^{-m/n} =(\sqrt[n]{a})^{-m}[/tex].".

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Step-by-step explanation:

so, let's do the multiplications and squaring. and then compare the result with the target.

(x + a)² + b = x² + 2ax + a² + b

and the original expression is

x² - 4x + 19

x² = x² done

2ax = -4x

2a = -4

a = -2

a² + b = 19

(-2)² + b = 19

4 + b = 19

b = 15

so, the result is

(x - 2)² + 15

Answer: (x-2)^2+15

Step-by-step explanation:

Given x^2-4x+19

=here b=-4 and c=19

B=b/2=-4/2=-2

C=c-B^2=19-(-2)^2=19-4-15

so

(x-B)^2+C

(x-2)^2+15