I actually have the answer it just says it’s wrong when I try to submit it. It says that I need to enter the correct number and units. Can anyone help with this?

ANSWER

f(-2) = 24

EXPLANATION

We are given the function:

To find f(-2), we have to subtitute -2 for x in the function. That is:

That is the answer.

Answer:

No solutions

Step-by-step explanation:

Answer: no solution

= 4x = 4x -3

= 4x - 4x = -3

0 = -3

no solution

For the carpenter to be sure that both length of the beam to be same length the base angles of the triangle must be the same.

An isosceles triangle is a triangle having two sides of equal length. The angles opposite the equal sides are also equal.

In other words, an isosceles triangle is a triangle with two sides equal and the base angles equal to each other.

The carpenter builds a set of triangular roof support . The carpenter wants the both sides of the slanted beam to be the same in lengths,

Therefore, for the carpenter to be sure the both length of the beam is the same, the base angles must be the same. This follows the rules of an isosceles triangle where two sides are the same and the base angles must be the same.

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The given expression is ,

Divide both sides by 1/3 implies,

The, divide both sides by b^2 gives,

Therefore, a=18/b^2.

We are given the following information

Carlos works a total of 86 hours in four weeks.

He works 18.5 hours each week for three weeks.

To determine how many hours Carlos work in the fourth week, we can set up the equation

We can make x the subject of the formula

Simplifying further

Therefore in the fourth week, Carlos will work 30.5 hours

Recall that two equations in standard form represent parallel lines if they are as follows:

Where A>0, and all the coefficients are integers.

Therefore the equation of a parallel line to the given line is as follows:

Since the parallel line passes through (15,4) then:

Simplifying the above result we get:

Therefore:

Solving the above equation for y we get:

Answer: Last option.

Answer:

D

Step-by-step explanation:

The slope of the the straight line equation 3x+5y=11 is (−35)Hence the slope of the line parallel is same to the given line i.e,(−35) We can write the equation in the following form slope intercept form i.e, y=mx+cHere c=−6 and m=−35The answer is y=−35x−6⇒5y=−3x−30⇒3x+5y=−30Hope it helps...Thanks you...

........

Step-by-step explanation:

Answer:

24x^3 - 4xz + 12x^2 -2z + 8x + 4

Step-by-step explanation:

We just need to simplify the equation

The required equation will be 200-80h=20 as the statement says, "You want to take a bus to go visit your friend in a different city. The distance between two cities is 200 kilometers and the bus drives 80 kilometers per hour. If the bus is 20 kilometers away from your friend’s city".

In its most basic form, an equation is a mathematical statement that shows that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign. In mathematics, an equation is a relationship of equality between two expressions written on both sides of the equal to sign. 3y = 16 is an example of an equation. Equations can be classified into three types based on their degree:

Here,

The distance between two cities=200 KM

The speed of bus=80 KM/hour

Time travelled=h hours

The distance travelled by bus=80h

The difference between distance=20

200-80h=20

As stated in the statement, the required equation is 200-80h=20 "You want to take the bus to see a friend in another city. The distance between the two cities is 200 kilometers, and the bus travels at an average speed of 80 kilometers per hour. If the bus is 20 kilometers away from your friend’s city".

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Antonio's plan is

Brielle's plan is

Then, we express both expressions as equivalent to finding the number of minutes needed to cost the same.

First, we use the distributive property.

Then, we reduce like terms.

Then, we subtract 4m on each side.

Now, we subtract 15 on each side.

At last, we divide the equation by 0.75.

This means after 6.67 minutes both plans will cost the same.

Answer:

6/5x -y = -9

Step-by-step explanation:

The standard form is ax + by =c so you would have to use the properties of equality to solve.

Given : y = 6/5x+9

Subtract -9 from both sides: 6/5x = y-9

Subtract y from both sides: 6/5x -y = -9

Polynomials are closed under the operation of addition, subtraction, and multiplication only. Here's why:

1. Addition: (Closed)

Reason: Say we have two polynomials: (x⁴ + 2x³ - 4) and (3x³ - 2x² + 6x). If we add these two polynomials, (x⁴ + 2x³ - 4) + (3x³ - 2x² + 6x), it will result to x⁴ + 5x³ - 2x² + 6x - 4 which is also a polynomial.

When adding polynomials, the variables and the exponents don't change. This guarantees that the sum of these variables with exponents will always be a polynomial.

2. Subtraction: (Closed)

Reason: Say we have two polynomials: (x⁴ + 2x³ - 4) and (3x³ - 2x² + 6x). If we subtract these two polynomials, (x⁴ + 2x³ - 4) - (3x³ - 2x² + 6x), it will result to x⁴ - x³ + 2x² - 6x - 4 which is also a polynomial.

When subtracting polynomials, the variables, and the exponents don't change. This guarantees that the difference of these variables with exponents will always be a polynomial.

3. Multiplication: (Closed)

Reason: Say we have two polynomials (x + 2) and (x - 4). If we multiply these two polynomials, (x + 2)(x - 4), it will result in x² - 2x - 8, which is also a polynomial.

When multiplying polynomials, the variables do not change but the exponents will be added to each other. In this case, we can guarantee that the new exponents will be positive whole numbers still and this guarantees that the answer will be a polynomial.

4. Division: (Not closed)

Reason: When dividing polynomials, exponents are being subtracted from each other, therefore, we might have a result of a negative exponent. Negative exponents are not allowed in a polynomial. Example, say we have two polynomials (x²) and (x⁴), if we divide (x²) by (x⁴), the resulting value would be:

The resulting value is x to the power of negative 2, and is not a polynomial.

The normality of a distribution as well as how fateful its tails are Kurtosis is a test for a distribution's normality that focuses on the size of the tails.

Kurtosis is a metric that indicates how heavy-tailed or light-tailed the data are in comparison to a normal distribution. In other words, data sets with a high kurtosis tend to have large outliers or heavy tails. Data sets with low kurtosis frequently lack outliers and have light tails. The worst-case scenario would be a uniform distribution.

Kurtosis is three and skewness is zero for the normal distribution. The test is based on how much the data's skewness deviates from zero and how far its kurtosis deviates from three. When the p-value is less than or equal to 0.05, the test rejects the normality hypothesis.

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Full Question :

Kurtosis is a measure of_____

a) how fat the tails of a distribution are

b) the downside risk of a distribution

c) the normality of a distribution

d) the dividend yield of the distribution

e) both how fate the tails of a distribution are and the normality of a distribution

Answer:

The minimum (cut off) score you need to receive this award is;

Explanation:

Given that the top 3% of the students receive a $500 prize.

We will then find the z-score that corresponds to the given probability.

Recall that;

Given;

substituting the values;

Therefore, the minimum (cut off) score you need to receive this award is;

The probability that Nhan will wear his shirt is 0.375.

From the information, Nhan considers two different shirts, three pairs of pants, and three pairs of shoes.

The total number will be:

= 2 + 3 + 3

= 8

Therefore, since we want to calculate the probability of the shirt which is the khaki, this will be:

= P(shirt) / Total number

= 3/8

= 0.375

There, the probability is 0.375.

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The function f(x) = 3x⁴ + 2x³ - 12x - 6 is equal to 60 for x = -2.

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have the following equation -

[tex]3x^4+2x^3-12x-6[/tex]

We have -

f(x) = 3x⁴ + 2x³ - 12x - 6

for x = - 2

f(- 2) = 3(-2)⁴ + 2(-2)³ - 12(-2) - 6

f(-2) = 48 - 16 + 24 - 6

f(- 2) = 48 + 8 - 6

f(- 2) = 60

Therefore, the function f(x) = 3x⁴ + 2x³ - 12x - 6 is equal to 60 for x = -2.

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Data

• Total phone calls: 154

• Second evening ( ,s ,): 10 more calls than the first evening ( ,f ,)

• Third evening ( ,t ,): 4 times as many calls as ,f

Procedure

We have to translate the given information into algebraic expressions.

• Maria received a total of 154 phone calls at the call center:

where f represents the first evening, s the second, and t the third.

• The second evening, she received 10 more calls than the first evening:

• The third evening, she received 4 times as many calls as the first evening:

As t and s can be used in terms of f, we will replace the second and third equations that we build in the first one:

Eliminating the parenthesis we get:

Solving for f:

Thus, the number of phone calls the first evening was 24.

Then, we have to replace this calculated value in the other equations to get s and t.

• Solving for ,s

• Solving for ,t

To prove our answers are correct, we can do the following:

Answer

• Number of phone calls the first evening: 24

• Number of phone calls the second evening: 34

• Number of phone calls the third evening: 96

Number of chirps would you expect to hear when the temperature is 90 is 200 .

A function from a fixed X to a hard and fast Y assigns to each detail of X exactly one element of Y. The set X is known as the area of the feature and the set Y is known as the codomain of the characteristic.

Calculation:

f(T) = 4(T-40)

       = 4(90-40)

        = 4 × 50

        =  200

A feature is described as a relation between a fixed of inputs having one output each. In easy phrases, a feature is a courting among inputs in which each entry is related to precisely one output. each feature has a website and codomain or variety. A characteristic is commonly denoted by means of f(x) where x is the input.

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Sale tax rate = 6.85%

To calculate the sale tax on a $14,000 Car, multiply 14,000 by the sale tax rate in decimal form ( divided by 100)

14,000 x (6.85/100) = 14,000 x 0.0685= $959

To find the final cost, add the sale tax amount to the price:

14,000 + 959 = $14,959

5 . 3

6 I 3 1 . 8

- 3 0

1 8

- 1 8

0

Therefore, the answer is 5.3

Answer:

90degrees

Explanation:

The sum of interior angle of a triangle si 180degrees

Hence, 7x-1 + 4x+1 + 3x - 2 = 180

Collect the like terms;

7x+4x+3x-1+1-2 = 180

14x - 2 = 180

14x = 180+2

14x = 182

x = 182/14

x = 13

Get m

From the triangle;

mSubstitute x = 13 into the expression

mmm

Hence the measure of m

Answer: You didn't say if they are walking towards each other or walking in the same direction away from the beginning of the trail.

if they are walking in the same direction they will never meet

because a is already 5 miles ahead and walking faster

r*t=d

rate

y=mx+b

y=rt+b

y=4t+6 first hiker

y=3t+1 second hiker

set them equal and see if there is a solution

if there is a solution it is the intersection

The solution is minus -5 which means they might have met 5 hours ago.

If they are walking towards each other

6-1=5

4t+3t=5

7t=5

t=5/7 hours they will meet after hiking 5/7 hours

Step-by-step explanation:

Answer:

2:9

or

8:32

There are many

Answer: 8:36 or 12:54

Step-by-step explanation:

All you have to do is multiply both by 2, so 4 times 2 is 8 and 18 x 2 is 36, and the answer is 8:36.

% represents a fraction with a denominator 100

0.0032 is a decimal

Therefore

Answer:

Using the digits 1 to 10 at most one time each to fill the given boxes, the value that makes the expression closest to 1 is;

Explanation:

Given the question in the attached image.

To make sure the result of the expression is closest to 1, we must make sure the value of the denominator and the numerator of the fraction is as close as possible.

Picking a set of values for the numerator, we must also try to select a separate set of values for the denominator that gives a result that is almost equal to the numerator.

Using this method we can arrive at a possible solution;

Let us simplify this expression to confirm;

Therefore, Using the digits 1 to 10 at most one time each to fill the given boxes, the value that makes the expression closest to 1 is;

The linear equation that represents the given problem is 18x + 20y = 400.

We are given that the golf course charges $18 for a package including the full 18-hole course. The course also sells buckets of golf balls for $20 each. The golf course wants to earn a total of $400 by the end of the day. We need to find the linear equation for this situation.

Let the number of golf course packages sold be represented by the variable "x". Let the number of buckets of golf balls sold be represented by the variable "y". The equation is written below.

18x + 20y = 400

The complete question is given below.

A golf course charges $18 for a package including the full 18-hole course. The course also sells buckets of golf balls for $20 each. The golf course would like to earn $400 by the end of the day. Write a linear equation that describes the problem.

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The number of real solutions that the function graph has is; One real solution

The general form of a quadratic equation with a regular parabola is;

y = ax² + bx + c

Now, we are given a quadratic equation graph showing the parabola curve and as such, the number of different real solutions that a function of this nature possesses is given by the number of times it crosses the x-axis(also known as the horizontal axis) on the graph.

In this question, the function crosses the x-axis just once and as such we say that it has only one real solution.

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