What is the value of the discrimination for the quadratic equation 0=2x2+x-3

The mean number of people in each spinning class last week is calculated by summing up the total number of attendees and dividing by the number of classes. The mean attendance for last week was 21.

To calculate the mean number of people attending the spinning class each day, you would add up the total number of people for the week and then divide by the number of classes.

The given numbers are:

So the sum of the attendees is: 13 + 23 + 24 + 31 + 14 = 105

The mean is then calculated by dividing the total by the number of days, which is 5 in this case:

Mean = Total ÷ Number of Days = 105 ÷ 5 = 21

So, the mean number of people in each class last week was 21.

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Hey there,

Here is your answer:

10/1 = 10

Answer:

17%

Step-by-step explanation:

Final answer:

Ella owns 15% of Fitz Incorporated, and the remaining 85% is shared equally among 5 other shareholders. Thus, each of these shareholders owns an equal share of 17% of the corporation.

Explanation:

The question asks about corporate stock and how it relates to the percentage of ownership in a corporation. Ella owns 15% of Fitz Incorporated, and the remaining 85% is owned equally by 5 other shareholders. To find the percentage each of these shareholders owns, we divide the remaining percentage by the number of shareholders.

The calculation would be:

Subtract the percentage owned by Ella from the total, which is 100% - 15% = 85%.

Divide this remaining percentage (85%) by the number of other shareholders, which is 5.

85% / 5 = 17% ownership for each of the other shareholders.

So, each of the remaining 5 shareholders owns 17% of the corporation.

9514 1404 393

Answer:

  a) 7

  b) 20

  c) 14

  d) 24

Step-by-step explanation:

The desired number is found by subtracting the given number from the square of the integer just higher than the root of the given number.

a) √42 ≈ 6.5, so the desired number is 7² -42 = 49 -42 = 7

__

b) √101 ≈ 10.05, so the desired number is 11² -101 = 121 -101 = 20

__

c) √470 ≈ 21.7, so the desired number is 22² -470 = 484 -470 = 14

__

d) √1000 ≈ 31.6, so the desired number is 32² -1000 = 1024 -1000 = 24

yes the answer is 12

                                                       hope it helps

ANSWER TO QUESTION 1

[tex]w(34)=0[/tex]

We multiply both sides by the multiplicative inverse of 34

[tex]w(34)\times \frac{1}{34} =0 \times \frac{1}{34}[/tex]

We apply the multiplicative property of zero to obtain,

[tex]w =0 [/tex]

ANSWER TO QUESTION 2

The dot means multiplication

[tex]7\times x=7[/tex]

By multiplicative inverse property,

[tex]\frac{1}{7}\times7x=\frac{1}{7} \times7[/tex]

[tex]1 \times x=1[/tex]

By the multiplicative identity property,

[tex]x=1[/tex]

ANSWER TO QUESTION 3

[tex]0+r=15[/tex]

By the additive identity property

[tex]r=15[/tex]

ANSWER TO QUESTION 4

[tex]9(0)=a[/tex]

By the multiplicative property of zero

[tex]0)=a[/tex]

or

[tex]a=0[/tex]

ANSWER TO QUESTIONS NUMBER

5. Multiplicative property of zero

Reason: According to this property if you multiply any number by zero, the result is zero.

That is why

[tex](0)3=0[/tex]

6. Multiplicative identity property

Reason: According to this property if we multiply any number by 1 the result is the same number. That is why

[tex]10\times 1=10[/tex]

7. Multiplicative identity property

Reason: According to this property if we multiply any number by 1 the result is the same number. That is why

[tex](1)\times 52=52[/tex]

8. Reflexive property of equality

According to this property for any number [tex]a[/tex],

[tex]a=a[/tex]

That is why

[tex]12+5=12+5[/tex]

9.Additive identity Property

According to this property, if we add any number to zero, the result is the same number. That is why

[tex]17+0=17[/tex]

10. Symmetric Property of Equality

According to this property, if  [tex]a=b[/tex] then  [tex]b=a[/tex]. That is why,

if  [tex]6+7=13[/tex] then  [tex]13=6+7[/tex]

11. Substitution Property of Equality

According to this property,

If if  [tex]a=b[/tex] then we can substitute a and for b in any expression that is why,

[tex](60-20)-10=40-10[/tex] because  [tex]40=60-20[/tex]

12. The Transitive Property of Equality

According to this property is ,if  [tex]a=b[/tex] and  [tex]b=c[/tex]

then [tex]a=c[/tex]. That is why,

If [tex]2^3=8[/tex] and  [tex]8=10-2[/tex]

then  [tex]2^3=10-2[/tex]

Answer:

1. w = 0

2. x = 1

3. r = 15

4. a = 0

5. Multiplicative identity of zero

6. Multiplicative identity of 1

7. Multiplicative identity of 1

8. Reflexive property of equality

9. Additive identity property of 0

10. Symmetric property of equality

11. Substitution property of equality

12. Transitive property of equality

Step-by-step explanation:

1. [tex]w (34) = 0[/tex]

w = 0 / 34

w = 0 (since anything divided by 0 is 0)

2. [tex]7[/tex] · [tex]x = 7[/tex]

7x = 7

x = 7 / 7

x = 1

3. [tex]0 + r = 15[/tex]

r = 15 - 0

r = 15

4. [tex]9 (0) = a[/tex]

Anything multiplied with 0 becomes 0 so

0 = a

a = 0

5. [tex](0) 3 = 0[/tex] ---> Multiplicative identity of 0

Any number multiplied by 0 becomes 0.

6. [tex]10[/tex] · [tex]1 = 10[/tex] ---> Multiplicative identity of 1

Any number multiplied by 1 remains unchanged.

7. [tex]1 (52) = 52[/tex] ---> Multiplicative identity of 1

Any number multiplied by 1 remains unchanged.

8. [tex]12 + 5 = 12 + 5[/tex] ---> Reflexive property of equality

The values are equal to itself.

9. [tex]17 + 0 = 17[/tex] ---> Additive identity property of 0

Sum of 0 and any number is the original number.

10. If [tex]6 + 7 = 13[/tex], then [tex]13 = 6 + 7[/tex] ---> Symmetric property of equality

If a = b then b = a.

11. [tex](60 - 20) - 10 = 40 - 10[/tex] ---> Substitution property of equality

If x = y then x can be substituted in for y in any equation and vice versa.

12. If [tex]2^{3} = 8[/tex] and [tex]8 = 10 - 2[/tex], then [tex]2^{3} = 10 - 2[/tex] ---> Transitive property of equality

If a =b and b = c, then a = c.

Your answer would be 1. Hope this helps :)

0.96 rounded to the nearest tenth is:

1

Because 6 is greater than 4. The number has to be greater than 4 for it to be rounded up, but if it's not, then the number only gets rid of the number behind the tenth.

Hope this helped! :D

Answer: Yes it is possible. Angle DCF is also 50 degrees

=================================================

Check out the image attachment below. On that image, I've marked that angle EBA is congruent to angle BAC by the alternate interior angle theorem. Those angles are shown in red. Furthermore, angle BAC is congruent to DCF (corresponding angles) using a green marker. Finally, using the transitive theorem, you can connect the statements in a chain to say that angle EBA is congruent to angle DCF, which is why angle DCF is 50 degrees as well.

Answer:

Kenya’s equation has infinitely many solutions

Step-by-step explanation:

we have

[tex]-6(x-2)+3x=-3(x+3)+21[/tex]

Solve for x

Eliminate the parenthesis

[tex]-6x+12+3x=-3x-9+21[/tex]

Group terms that contain the same variable

[tex]-6x+3x+3x=-9+21-12[/tex]

Combine like terms

[tex]0=0[/tex]  ---> is true for any value of x

therefore

Kenya’s equation has infinitely many solutions

Answer:

D

Step-by-step explanation:

To simplify the expression √7{x 5} ×  √7{x 5}, you can multiply the radicands together and simplify the result.

To simplify the expression √7{x 5} ×  √7{x 5}

We can use the properties of radicals to simplify the expression. When multiplying radicals with the same index, we can simplify by multiplying the radicands together. In this case, the radicands are both x5, so the simplified form will be:

√7{x 5} ×  √7{x 5} = √7{x 5 × x 5} = √7{x10}

Therefore, the simplified form of the expression is √7{x10}.

The product of -0.2 -6.8 = -7          Hope this Helps :)

Answer:

Option D

Yes 0.4

Step-by-step explanation:

A sequence is said to be arithmetic if there is a pattern as

nth term is got by adding d to n-1th term.

d = common difference

The sequence will look like

a, a+d,a+2d, a+3d,......

where I term= a and each time d is added to get the next term.

Our given sequence is

-0.3, 0.1, 0.5, 0.9, …

Let us find difference between Ii and I term

=0.1-(-0.3) = 0.4

Similarly iii term - ii term

=0.5-0.1 =0.4

and iv term - iii term = 0.9-0.5 = 0.4

Hence confirmed that this is an arithmetic sequence with I term =-0.3 and common difference = 0.4

The answer is D or -30

The value of the expression for the given values of the variables is -30.

The given expression is 4a+7b+3a-2b+2a, the values of the variables a=-5 and b=3.

We need to evaluate the expression for the given values of the variables.

To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.

Now, put a=-5 and b=3 in the given expression and simplify.

That is, 4a+7b+3a-2b+2a=4(-5)+7(3)+3(-5)-2(3)+2(-5)

=-20+21-15-6-10

=-30

Therefore, the value of the expression for the given values of the variables is -30.

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Answer:

Step-by-step explanation:

[tex]-12-a=4a-7\qquad|\text{add 12 to both sides}\\\\-a=4a+5\qquad|\text{subtract 4a from both sides}\\\\-5a=5\qquad|\text{divide both sides by -5}\\\\\boxed{a=-1}[/tex]

To do this you can do (pay) x (hours) to work out how much Johnny makes for example:

8.25 x 29.5 = 243.375$ so the answer is 243.375$

Answer:

The correct answer is B) $243.397

Step-by-step explanation:

* First is correct - the height crosses the 0 point between 8 and 10 secs

* Third is correct - 81.6 m is max at 4 secs

all others incorrect

the equation will be: 2(v+w)=2z

Answer:

3/6is not a integer.

Step-by-step explanation:

6/3 integer

6/2 integer

3/6 not a integer

Final answer:

The fraction 3/6 is not an integer because it equals 0.5, which is a fraction and not a whole number.

Explanation:

To determine which of these values is not an integer, we need to perform the division for each fraction:

Therefore, 3/6 is not an integer because when you divide 3 by 6, you get a fractional number rather than a whole number.

Answer:

Tony pays $6.75 for his item, & Tanya pays $9 for her items

Step-by-step explanation:

Let Tanya's item be x, and Tony's be y. Set the system of equality:

3x = 4y

y = x - 2.25

Plug in x - 2.25 for y in the first equation

3x = 4(x - 2.25)

Distribute 4 to all terms within the parenthesis

3x = 4x - 9

Isolate the x. Subtract 4x from both sides

3x (-4x) = 4x (-4x) - 9

3x - 4x = -9

-x = -9

Isolate the x. Divide -1 from both sides

(-x)/-1 = (-9)/-1

x = 9

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

Plug in 9 for x in the equation

y = x - 2.25

y = (9) - 2.25

y = 6.75

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

Tony pays $6.75 for his item, & Tanya pays $9 for her items

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~Rise Above the Ordinary

a single die being rolled to a number less or equal to 2

Final answer:

The complement of rolling a number greater than 2 on a single six-sided die is rolling a 2 or less, which has a probability of 1/3.

Explanation:

In the context of a single six-sided die roll, the complement of rolling a number greater than 2 would be rolling a number that is 2 or less, which in this case includes rolling a 1 or a 2. Each face of a fair six-sided die has an equal chance of landing face up, giving us a probability of 1/6 for landing on a specific number. Since there are two outcomes that are 2 or less (1 and 2), we simply add their probabilities to get the complement. Thus, the complement of rolling a number greater than 2 is:

P(rolling a 1 or 2) = P(rolling a 1) + P(rolling a 2)
= 1/6 + 1/6
= 1/3.

Therefore, there is a 1/3 chance of rolling a number that is 2 or less when rolling a single fair six-sided die.

Answer,

C.g-^m -^n

Hope this helps :-)

a - 47 = more time spent

In this mathematical problem, Abby's time is represented as x and the difference in time between Abby's and Susanna's work can be modeled by the equation x-47=y, where y is the extra time Abby spends. A number line can be used to visualize this problem, but without knowing Abby's time, we cannot determine y.

The subject of this problem is mathematics and it discusses time spent by two individuals on their project. We know that Susanna spends 47 minutes on her project. However, we do not know how much time Abby spends on her project. We could represent the time Abby spends on her project as x.

To visualize the situation, we can draw a number line. Place a point at 47 which represents Susanna's time. Then place another point at x which represents Abby's time.

The difference in time between Susanna and Abby can be represented by the equation x - 47 = y, where y is the number of extra minutes Abby spends working on her project.

Without any additional information on how much time Abby spent on her work, it's impossible to give a specific answer.

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38. X>2 and X<1 will give you the answer X3 because X>2+X<1= X3

39. X>2 or X>3 will give you the answer X6 because X>2x X>3=X6

40. your answer would be x=4

1/3    =        7

------      ---------

2 miles     ? miles

using cross products

1/3 * ? = 2 * 7

1/3 ? =14

? = 42 miles

Answer:

42

Step-by-step explanation:

Nathan is incorrect. Any number times 0 is equal to 0!

-Abha

p(10) is the profit, in dollars, from selling 10 books. Replace every copy of x with 10 and simplify

p(x) = 8x-10

p(10) = 8*10-10 .... every x is replaced with 10

p(10) = 80-10

p(10) = 70

So the profit is $70

For the function p(x) = 8x - 10, the profit for selling 20 books is $150.

Explanation:

In the problem, the function p(x) = 8x - 10 represents the profit, in dollars, for selling 'x' books. When it's stated that p(20) = 150, it means that by substituting the value of 'x' as 20 in the function, we get the value as 150. In terms of the problem, it means that the profit for selling 20 books is $150.

Let's break down the problem step by step.

1. You're given the function p(x) = 8x - 10, which represents the profit, in dollars, for selling x books. In this equation, p(x) is the profit, and \(x\) is the number of books sold.

2. You're asked to evaluate the function at x = 20, which means you want to find p(20). To do this, substitute x = 20 into the function and calculate the result.

  p(20) = 8(20) - 10

3. Perform the calculation:

  p(20) = 160 - 10

4. Complete the subtraction:

  p(20) = 150

So, p(20) = 150, which means that the profit for selling 20 books is $150. This is the interpretation of the statement "p(20) = 150" in terms of the problem.

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The probable question can be: The function p(x) = 8x - 10 shows the profit, in dollars, for selling x books.

p(10) = 70

p(20) = 150

What does p(20) = 150 mean in terms of the problem?

It costs $150 to make 20 books.

It costs $20 to make 150 books.

The profit for selling 150 books is $20.

The profit for selling 20 books is $150.

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