Evaluate b(-7), when b(c) = 2c³5c² - 6c - 13.

Hello!

surface area

= 2(4 x 2) + 2(12 x 4) + 2(12 x 2)

= 160cm²

Answer:

{7, 9}

(Numbers from 1 to 10 equal to or greater than 7 are 7 and 9)

Step-by-step explanation:

We have to find the set of whole number greater than and equal to 7 from 1 to 10,

Now, From 1 to 10, the odd numbers are, 1,3,5,7,9,

And of these, 7 and 9 are equal to or greater than 7

So, we get the set,

{7, 9}

The regression equation is Y = −12.201 + 2.195x.

In the given question,

A regression analysis shows the following results.

                                    Coefficients       Standard Error       t-Stat      p-value

Intercept                        −12.201                     6.560            −1.860       0.100

Number of contacts         2.195                      0.176             12.505      0.000

We have to find the regression equation.

Given that,

Coefficient of Intercept(a) = −12.201

Coefficient of Number of contacts(b) = 2.195

The regression equation is,

Y = a + bx

Y = −12.201 + 2.195x

To learn more about regression equation link is here

brainly.com/question/14184702

#SPJ4

The right question is:

A sales manager for an advertising agency believes there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression analysis shows the following results.

                                    Coefficients       Standard Error       t-Stat      p-value

Intercept                        −12.201                     6.560            −1.860       0.100

Number of contacts         2.195                      0.176             12.505      0.000

What is the regression equation?

Answer:

(2m + 1) * x ^ 2 - (2m + 5) * x + (2m + 1) = 0

2mx^2+x^2-2mx+5x+2m+1=0

3mx^2+5x+1=0

That's as far as you can get simplifying it.

Step-by-step explanation:

Slope intercept form is written as follows:

\(y=mx+b\)

With this information, isolate y on the left side of the provided equation:

\(4y=10x-14\)

Now, divide both sides of the equation by 4:

\(y=\frac{10}{4} x-\frac{7}{2}\)

This equation cannot be simplified anymore, and is therefore the answer!

\(y=\frac{10}{4} x-\frac{7}{2}\)

Answer:

y = (5/2)x - (7/2)

Step-by-step explanation:

–10x + 4y + 14 = 0

                 -14     -14

-----------------------------

-10x + 4y = -14

+10x                 + 10x

--------------------------------

4y = 10x - 14

÷4    ÷4     ÷4

----------------------

y = (10/4)x - (14/4)

simplified

y = (5/2)x - (7/2)

I hope this helps!

The polynomial expression that represents the perimeter is (3x^3 +3x -148)ft and the value is 182ft

Polynomials are algebraic expressions that consist of variables and coefficients. Variables are also sometimes called indeterminates. We can perform arithmetic operations such as addition, subtraction, multiplication, and also positive integer exponents for polynomial expressions but not division by variable.

Perimeter of the triangle is the sum of the sides of the triangle which is = 2x^2 -120 + x^2 -5x +8x -28

Perimeter = (3x^2 +3x -148)ft

when x = 10

Perimeter = 3(10)^2 +3(10) -148 = 182ft

In conclusion the expression  (3x^2 +3x -148)ft is the expression for the perimeter of the triangle and the value is 182ft

Learn more about polynomials: https://brainly.com/question/2833285

#SPJ1

Answer:

Step-by-step explanation:

We know that the sides in a square are equal length. We also know that you have to multiply length by width to get area. So if we know that the length of one side is 16 feet then all we have to do if multiply 16 by 16. Hence why the answer is 256 square feet of carpet.

Here's why:

The 4 and 8 on the left side combine to 12. The 5x and -3x on the right hand side combine to 2x.

This means the equation for choice D becomes 2x+12 = 2x-12

From here, subtract 2x from both sides. Doing so will cancel each copy of 2x and the x terms go away entirely. We're left with 12 = -12 which is a false statement since we don't have the same number on both sides. We have a contradiction instead, so there are no solutions here.

No matter what we replace x with in equation D, it will always be false.

If you graphed y = 2x+12 and y = 2x-12, you would find that the lines are parallel. Parallel lines never intersect. Intersection points are solution points, so this is a visual way to see that we don't have any solutions.

Answer:

8.36

Step-by-step explanation:

67 - 1

8. 82

= 2747 - 4

328

=2743

328

= 8.36

Answer:

The probability x win a set is 3 in 5, 0.6.

The probability that x wins m sets from a total of N is given by the formula:

a) If they play 6 sets, the probability that y wins 3 of then is given by:

b) The probability that y wins at least 5 of then is given by:

The range of the data is 67, and the standard deviation is 28.19 (rounded to two decimal places).

To find the range and standard deviation of a set of numbers, we need to perform the following steps:

Find the mean of the data:

To find the mean, we add up all the numbers and divide by the total number of observations.

mean = (84 + 58 + 81 + 37 + 60 + 44 + 23 + 48 + 46 + 88 + 28 + 23 + 60 + 27 + 30 + 21 + 86 + 67 + 21 + 22 + 69) / 24 = 54.125

Subtract the mean from each data point:

84 - 54.125 = 29.875

58 - 54.125 = 3.875

81 - 54.125 = 26.875

...

69 - 54.125 = 14.875

Square the differences:

29.875^2 = 893.90625

3.875^2 = 15.234375

26.875^2 = 720.5625

...

14.875^2 = 221.5625

Sum the squared differences:

893.90625 + 15.234375 + 720.5625 + ... + 221.5625 = 6766.40625

Divide the sum by the number of observations minus 1:

6766.40625 / (24 - 1) = 796.218421

Take the square root to find the standard deviation:

sqrt(796.22) = 28.19

The range is the difference between the largest and smallest data points:

range = 88 - 21 = 67

So, the range of the data is 67, and the standard deviation is 28.19 (rounded to two decimal places).

Read more about standard deviation here:

https://brainly.com/question/24298037

#SPJ1

Kamryn would save $159.99 in interest by raising her credit score from 665 to 680 when borrowing $13,250.00 with a simple interest rate loan.

To determine the amount of interest Kamryn will save by raising her credit score from 665 to 680, we need to compare the interest rates associated with each credit score range.

According to the given information, a credit score of 665 falls within the range of 580-669, where the corresponding simple interest rate is 10.358%.

Let's calculate the interest Kamryn would pay on a loan of $13,250.00 at an interest rate of 10.358%.

Interest = Principal * Rate

= $13,250.00 * 0.10358

≈ $1,370.56

Therefore, if Kamryn were to borrow $13,250.00 with a credit score of 665, she would pay approximately $1,370.56 in interest.

Now, let's consider the scenario where Kamryn raises her credit score to 680. A credit score of 680 falls within the range of 670-739, where the corresponding simple interest rate is 9.132%.

Calculating the interest with a credit score of 680:

Interest = Principal * Rate

= $13,250.00 * 0.09132

≈ $1,210.57

Thus, if Kamryn were able to raise her credit score from 665 to 680, she would save approximately $1,370.56 - $1,210.57 = $159.99 in interest.

Therefore, Kamryn would save approximately $159.99 in interest by raising her credit score from 665 to 680 when borrowing $13,250.00 with a simple interest rate loan.

For more question on interest visit:

https://brainly.com/question/25720319

#SPJ8

The mean is the most sensitive to extreme scores, followed by the median, while the mode is the least affected. The mean is greatly influenced by outliers, the median is moderately influenced, and the mode is generally unaffected by extreme scores.

The mean, median, and mode are measures of central tendency used to describe the average or typical value in a dataset. They differ in their sensitivity to extreme scores, also known as outliers or extreme values.

Mean:

The mean is calculated by summing all the values in a dataset and dividing by the total number of values. It is highly sensitive to extreme scores because it takes into account the magnitude of each value. Even a single extreme score can significantly affect the mean. This sensitivity arises from the fact that the mean incorporates all values in the dataset. Therefore, outliers can distort the mean and pull it towards their direction

Median:

The median represents the middle value when the dataset is arranged in ascending or descending order. It is less sensitive to extreme scores compared to the mean. The median only considers the position of the values, not their actual values. Therefore, extreme scores have less impact on the median since it focuses on the relative position of values rather than their magnitude. As a result, outliers have minimal influence on the median.

Mode:

The mode represents the value(s) that appear most frequently in the dataset. Like the median, the mode is not significantly affected by extreme scores. Outliers can occur in a dataset without affecting the mode because the mode is determined by the most frequently occurring value(s), regardless of their magnitude. In datasets with multiple modes or no mode, extreme scores may not significantly impact the mode.

for such more question on mean

https://brainly.com/question/14532771

#SPJ8

Answer:

2

Step-by-step explanation:

cause

Answer:1,036

Step-by-step explanation:I did this in my head lol tell me if it’s wrong tho

The probabilities are given as follows:

1) Blue eyes: 0.132.

2) Female with green eyes: 0.09.

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.

The total number of people is given as follows:

20 + 25 + 30 + 15 + 10 + 12 + 15 + 20 + 10 + 10 = 167.

10 + 12 = 22 people out of 167 have blue eyes, hence the probability is given as follows:

p = 22/167 = 0.132.

15 people out of 167 are female with green eyes, hence the probability is given as follows:

p = 15/167 = 0.09.

More can be learned about probability at https://brainly.com/question/24756209

#SPJ1

Answer:

7th grade math help me pleasee

- + - + respectively 1234

Answer:

1. -5

2. 12

3. -10

4. 31

Step-by-step explanation:

The equation formed after the transformations is given as follows:

\(g(x) = \frac{1}{6}\sqrt{x + 3}\)

The parent function in this problem is defined as follows:

\(f(x) = \sqrt{x}\)

For the vertical shrink by a factor of 1/6, the function is multiplied by 1/6, hence it is given as follows:

\(g(x) = \frac{1}{6}\sqrt{x}\)

For the translation left 3 units, we have that x -> x + 3, hence:

\(g(x) = \frac{1}{6}\sqrt{x + 3}\)

More can be learned about transformations at https://brainly.com/question/28687396

#SPJ1

Answer:

line c

Step-by-step explanation:

a simple graph of one week equals two books or a slope of 2

Answer:

The discriminant must be zero.

Step-by-step explanation:

Quadratic Equation

The standard representation of a quadratic function is:

\(f(x)=ax^2+bx+c\)

where a,b, and c are constants.

The zeros, roots, or x-intercepts can be found by solving the equation:

\(ax^2+bx+c=0\)

We can use the quadratic formula to find the roots:

\(\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\)

Note this formula gives us two different roots if the square root is non-zero.

The only way there can be only one x-intercept is because the square root is zero.

If the square root is zero, then

\(b^2-4ac =0\)

The expression is called the discriminant.

Thus, if x=-3 is the only x-intercept of the graph of a quadratic function, then the discriminant must be zero.

It has taken me 32 minutes to drive 48 km. If the total length of my journey is 146 km and I maintain the same speed,  then you can estimate that you will be driving for approximately 65.344 minutes longer to complete the remaining 98 km of your journey.

To estimate how much longer you will be driving for, we can use the concept of proportionality. We know that the time taken to drive 48 km is 32 minutes. Let's use this information to find the time it would take to drive 146 km.

We can set up a proportion to find the time:

(time taken for 48 km) / (48 km) = (time taken for 146 km) / (146 km)

Let's solve for the time taken for 146 km:

(time taken for 146 km) = (time taken for 48 km) * (146 km / 48 km)

Substituting the given values:

(time taken for 146 km) = 32 minutes * (146 km / 48 km)

Calculating the value:

(time taken for 146 km) ≈ 32 minutes * 3.042

(time taken for 146 km) ≈ 97.344 minutes

Therefore, it would take approximately 97.344 minutes to drive 146 km at the same speed.

To estimate how much longer you will be driving for, we can subtract the initial time of 32 minutes from the estimated time of 97.344 minutes:

Additional time = 97.344 minutes - 32 minutes

Additional time ≈ 65.344 minutes

For more such information on: speed

https://brainly.com/question/24739297

#SPJ8

Answer:

x= 10.25

Step-by-step explanation:

#According to the source,

=> x^2+(3√5)^2 = (x+2)^2

=> x^2+9×5 = x^2+2×x×2+2^2

=> x^2+45 = x^2+4x+4

=> x^2+45-x^2-4x-4 = 0

=> - 4x+41 = 0

=> -4x = - 41

=> x = 41/4

=> x = 10.25

...........I'm sure...........100%

The amount received from loans as a number in millions is 242,700 million rand.

Deducing value A requires computation of collective income sources, for which the following summation suffices:

Total Income = Tax + Loans + ASC + QP + Other income + Non-tax income = 1370 + 242.7 + 180.3 + 31.5 + A + 0 = 1825.5 + A

In this context, it follows that A amounts to (1825.5 - 1370 - 242.7 - 180.3 - 31.5) = 0 million rand.

Conversely determining missing value B necessitates subtraction of total expenditure from accumulated revenue, giving rise to the subsequent formula:

Total Income - Total Expenditure = B

(1825.5 - 112.7 - 278.4 - 262.4 - 222.6 - 211.0 - 209.2 - 208.5 - 202.2 - 0) = B

Following calculation, B equates to -77.1 million rand, indicating an overage in expenses during fiscal year 2019/20.

Learn more about word problem on

https://brainly.com/question/21405634

#SPJ1

The Total mileage is "400" and the further solution can be defined as follows:

Let t become the time he spent commuting on the first day of his vacation.

It is then calculated as \(t + 2\).

\(\to 40\times(t+2) = 60(t) + 20 \\\\\to 40t+80 = 60t + 20 \\\\\to 80-20 = 60t + 40t \\\\\to 60 = 20t \\\\\to t=\frac{60}{20} \\\\\to t=\frac{6}{2} \\\\\to t= 3\\\\\)

It traveled \(40\times (3 + 2) + 20 = 40\times 5 + 20 = 200+20=220\) miles on its first day of operation.

The car traveled \(180\ miles\) on the second day, which was \(60 \ miles \times 3\).

So,

Total mileage= first day traveled + second day traveled \(= 220+ 180= 400 \miles\)

Learn more:

Total distance traveled: brainly.com/question/20670144

Answer:

It could possibly be 2

Step-by-step explanation:

Remember varibles can stand for any number so if you have a key for your varibles than you might get you answer after using a caculator to add an sub tract and mulitiply the numburs

There are 15 nickels in the piggy bank.

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

Let's use a system of equations to solve this problem:

Let's call the number of nickels "n" and the number of dimes "d".

We know that there are a total of 21 coins, so,

n + d = 21

We also know that the total value of the coins is $1.35.

Since a nickel is worth 5 cents and a dime is worth 10 cents,

We can write:

5n + 10d = 135

(since there are 100 cents in a dollar)

We can solve for one variable in terms of the other in the first equation, and substitute that expression into the second equation:

n + d = 21

n = 21 - d (subtract d from both sides)

5n + 10d = 135

5(21 - d) + 10d = 135 (substitute 21 - d for n)

105 - 5d + 10d = 135 (distribute 5)

5d = 30 (subtract 105 from both sides)

d = 6 (divide both sides by 5)

So there are 6 dimes in the piggy bank.

To find the number of nickels, we can substitute d = 6.

n + d = 21

n + 6 = 21

n = 15

Thus,

There are 15 nickels in the piggy bank.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2