students were asked to write a trinomial that could not be factored using integers. which students followed the given directions.
pat x2 + 3x- 10
sam x2+x-12
mel x2+2x-1
lee x2+2x-3​

Answers

Answer 1

ANSWER

Mel followed the right direction.

EXPLANATION

Pat's trinomial is;

[tex] {x}^{2} + 3x - 10[/tex]

There are factors of -10 that sums up to 3.

[tex]5 + - 2 = 3[/tex]

Hence this trinomial could be factored into (x-2)(x+5)

Sam's trinomial:

[tex] {x}^{2} + x - 12[/tex]

There are factors of -12 that sums up to 1.

4+-3=1

[tex] {x}^{2} + x - 12 = (x + 4)(x - 3)[/tex]

Mel's trinomial:

[tex] {x}^{2} + 2x - 1[/tex]

There are no factors of -1 that sums to 2.

This trinomial cannot be factored.

Lee's trinomial:

[tex] {x}^{2} + 2x - 3[/tex]

There are factors of -3 that sums up to 2

3+-1=2

[tex] {x}^{2} + 2x + 3 = (x + 3)(x - 1)[/tex]


Related Questions

twice the difference of a numbrr and 8 is equal to 2.twice the difference of a number and 8 is equal to 2 ​

Answers

Answer:

2(x-8)=8

x=12

Step-by-step explanation:

The equation for the given statement is 2(x-8)=2.

The given statement "Twice the difference of a number and 8 is equal to 2 ​

What is an equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Now, the difference between a number and 8 can then be written as 'x-8'. Twice that amount would be 2(x-8). If it's equal to 2, you can say 2(x-8)=2.

Therefore, the equation for the statement is 2(x-8)=2.

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Last week Bryan traveled 4 miles by a bus, 18 miles by a train, 11 miles by a van, 33 miles by a car, 7 miles by a bike and walked 2 miles.


What is the range in miles for the different ways that Bryan traveled?

FOUND ANSWER: 31

Answers

Answer:

[tex]\boxed{\text{[2, 33]}}[/tex]

Step-by-step explanation:

The range is the spread of the y-values (minimum to maximum distance travelled).

The minimum is 2 mi, and the maximum is 33 mi, so the range is from 2 to 33.

In interval notation, the range is [tex]\boxed{\textbf{[2, 33]}}[/tex]

Answer:

31

Step-by-step explanation:

31

The range is the difference between the largest and smallest number.

range = biggest − smallest = 33 − 2 = 31

Angelos pet rabbit weighs 1 pound less than twice the weight of Carmen’s pet rabbit.Angelos rabbit weighs 9 pounds. Write an equation that can be used to find w, the weight of Carmen’s pet rabbit. I need the answer plsss???!!!

Answers

The required weight of Carmen's rabbit is given as 5 pounds and the equation is given as 9 = 2x -1.

As mentioned in the question,
Angelos's pet rabbit weighs 1 pound less than twice the weight of Carmen’s pet rabbit. Angelos rabbit weighs 9 pounds.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
Let the weight of the Carmen's be x,
According to the question,
Angelos pet rabbit weighs,
9 = 2x -1
x = 5

Thus, the required weight of Carmen's rabbit is given as 5 pounds.

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Final answer:

To find the weight of Carmen's pet rabbit, an equation is set up: 2w - 1 = 9, where w represents the unknown weight of Carmen's rabbit. Solving the equation, we find that Carmen's rabbit weighs 5 pounds.

Explanation:

To find the weight of Carmen's pet rabbit, we first need to translate the given information into a mathematical equation. The problem states that Angelo's pet rabbit weighs 1 pound less than twice the weight of Carmen's pet rabbit and Angelo's rabbit weighs 9 pounds. Let's denote the weight of Carmen's rabbit as w. The relationship can be written as:

2w - 1 = 9


To solve for w, we add 1 to both sides of the equation:


2w - 1 + 1 = 9 + 1

2w = 10


Now, we divide both sides by 2 to get the weight of Carmen's rabbit:


2w / 2 = 10 / 2

w = 5



Therefore, Carmen's pet rabbit weighs 5 pounds.

bill and julio are selling wrapping paper for a school fundraiser. customers can buy rolls of plain wrapping paper and rolls of shiny wrapping paper. bill sold 8 rolls of plain wrapping paper and 10 rolls of shiny wrapping paper for a total of $328. julio sold 9 rolls of plain wrapping paper and 2 rolls of shiny wrapping paper for a total of $184. find the cost each of one roll of plain wrapping paper and one roll of shiny wrapping paper​

Answers

Answer:

Plain rolls: $16

Shinny rolls: $20

Step-by-step explanation:

So, we have 2 equations to start with, let p = plain rolls and s = shinny rolls:

1)  8p + 10s = 328

2) 9p + 2s = 184

We need to isolate one variable, usually I go for the one with the lowest multiplicative... so let's go for the '2s' and isolate the s from equation 2.

2s = 184 - 9p

3) s = (184 - 9p) / 2

And let's place that s equivalent into the first equation:

8p + 10 (184 - 9p)/2 = 328

8p + 5(184 - 9p) = 328

8p - 45p + 920 = 328

-37p = -592

p = 16

Then we go into any of the 3 equations to get the value of s.  Let's take the 3rd equation, it will be simpler:

s = (184 - 9p) / 2 = (184 - 9*16) / 2

s = (184 - 144)/2 = 40/2 = 20

Then last step, we enter the values for s and p in one of the first equations to validate it.  We haven't worked with first equation, so let's use that one:

8p + 10s = 328

8 (16) + 10 (20) = 328

128 + 200 = 328

328 = 328

Confirmed!

look at picture and plzz help me

Answers

Answer: A

Step-by-step explanation:

factor out the greatest perfect foot factorthe root of a product is equal to the product of the roots of eachotherreduce the index of the radical and exponet with 5

For this case we must simplify the following expression:

[tex]\sqrt [5] {224x ^ {11} * y ^ 8}[/tex]

We follow the steps below:

We rewrite 224 as the product of: 32 * 7

[tex]\sqrt [5] {32 * 7 * x ^ {11} * y ^ 8} =[/tex]

We rewrite [tex]32\ as\ 2 ^ 5, x^{11}\ as\ x * x^{10}:[/tex]

[tex]\sqrt [5] {2 ^ 5 * 7 * x ^ {10} * x * y ^ 8} =[/tex]

We rewrite [tex]x^{10}[/tex] as [tex](x ^ 2) ^ 5,[/tex] we also rewrite [tex]y ^ 8[/tex] as [tex]y ^ 5 * y ^ 3:[/tex]

[tex]\sqrt [5] {2 ^ 5 * 7 * (x ^ 2) ^ 5 * x * y ^ 5 * y ^ 3} =[/tex]

We reorder:

[tex]\sqrt [5] {2 ^ 5 * (x ^ 2) ^ 5 * y ^ 5 * 7 * x * y ^ 3} =\\\sqrt [5] {(2 * x ^ 2 * y) ^ 5 * (7 * x * y ^ 3)} =[/tex]

We take the terms of the radical considering that: [tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]

[tex]2 x ^ 2y \sqrt [5] {7 x y ^ 3}[/tex]

Answer:

Option A

Please explain your answer as well. THX!!

Answers

Answer:

1

Step-by-step explanation:

sec(x)*cos(x) + cos(x)-1/(sec(x))

We know that sex(x) = 1/(cos(x))

substitute it in our expression.

1/(cos(x)) * cos(x) + cos(x) - 1/(1/cos(x)) = 1+cos(x) - cos (x)= 1

ANSWER

A. 1

EXPLANATION

The given trigonometric expression is

[tex] \sec(x) \cos(x) + \cos(x) - \frac{1}{ \sec(x) } [/tex]

Recall and use the following reciprocal identities.

[tex] \frac{1}{ \sec(x) } = \cos(x) [/tex]

and

[tex] \sec(x) = \frac{1}{ \cos(x) } [/tex]

When we apply these identities, we get

[tex] \frac{1}{ \cos(x) } \times \cos(x) + \cos(x) - \cos(x) [/tex]

This simplifies to:

[tex]1 + 0 = 1[/tex]

The correct choice is A

By visual inspection, determine the best-fitting regression model for the data plot below.

A) Exponential
B) No pattern
C) Linear decreasing
D) Linear increasing

Answers

Answer:

A) exponential

Step-by-step explanation:

It is in a curving pattern which indicates exponential. Linear is a straight line.

The best-fitting regression model for the considered data plot is given by: Option A: Exponential.

What is fitting of curve for a data plot?

When the data shows some trend, either linear (making a line), or non-linear (a predictable curve), we fit a mathematical curve on that data set, as a representative of the pattern in that data set, to predict the output based on the inputs.

The considered plot is not forming a straight line(so no linear fitting), but we can see that a smooth curve can be fitted in the considered data. Since the exponential functions' graph approximately goes the same way (for positive exponent, and increasing value of output).

Thus, the best-fitting regression model for the considered data plot is given by: Option A: Exponential.

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|5−4(x+2)| =3
PLZ ANSWER!

Answers

|5-4(x+2)| = 3

5-4=1

1(x+2) = 3

1*x= 1x

1*2= 2

1x +2 = 3
-2. -2
0. 1

1x= x

x=1

Answer:

5-4(x+2)=3

1(x+2)=3

1x+2=3

3-2=1

Step-by-step explanation:

x=1

What's the correct answer?

Answers

I think it's C but don't quote me on that I don't know

Choose the linear inequality that describes the graph. The gray area represents the shaded region.


y > –5x – 3

y > –5x + 3

y > –3x + 5

y < –5x + 3

Answers

Answer:

y > –5x + 3

Step-by-step explanation:

we know that

1) The solution of the inequality is the shaded area above the dashed line

so

The linear inequality could be

y > –5x – 3

y > –5x + 3

y > –3x + 5

2) The slope of the dashed line is negative ----> the three options have slope negative

3) The y-intercept of the dashed line is (0,3)

therefore

The linear inequality is

y > –5x + 3

Answer:

[tex]y>-5x+3[/tex]

Step-by-step explanation:

To find the linear inequality , Let pick two points from the graph

Lets pick (0,3) and (1,-2)

Lets find out slope using the points

[tex]slope =\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]slope =\frac{-2-3}{1-0}=-5[/tex]

Slope m= -5

y intercept b= 3

Equation of the line is y=mx+b

[tex]y=-5x+3[/tex]

Now we look at the shaded part. we use test point (0,0)

(0,0) is not in the shaded region

[tex]y=-5x+3[/tex]

[tex]0=-5(0)+3[/tex]

0 >3 is false

[tex]y>-5x+3[/tex]

Divide 4200 by a multiple of 10 so that the quotient is also a multiple of 10

Answers

Answer:

4200 divided by 10

Step-by-step explanation:

To make 4200 a multiple of ten after dividing it by a multiple of ten, we first find the number of 5's in 4200 to see how many 10's go into 4200. Since 4200 = 6*7*2*2*5*5, we see that there are 2 fives. This means that there are two tens too. Since we have to keep 4200 a multiple of ten after dividing it by another 10. So the only possible way to do that is dividing 4200 by 10.

Final answer:

Dividing 4200 by the power of 10, 100, results in the quotient 42, which is also a multiple of 10. This is achieved by moving the decimal point two places to the left in the number 4200 due to the two zeros in the power of 10.

Explanation:

In this mathematics problem, you are asked to divide 4200 by a multiple of 10 such that the result, or quotient, is also a multiple of 10. The key to this problem lies in understanding the concept of dividing by powers of 10.

When you divide a number by a power of 10, you move the decimal point to the left by as many places as there are zeros in the power of 10. So if you wanted to divide 4200 by a multiple of 10 so that the result is also a multiple of 10, you might choose 100 (10^2) as your divisor. Why? Because there are two zeros in the power of 10, which means you move the decimal point two places to the left in the number 4200.

So when you divide 4200 by 100, you get 42 which is a multiple of 10. Therefore, 4200 divided by a multiple of 10 (100 in this case) gives a quotient (42) that is also a multiple of 10.

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Please answer photo below thank you :’)

Answers

Answer:x2_>16 B.

Step-by-step explanation:

For this case we will show that the correct option is option C.

[tex]x ^ 2 \leq16[/tex]

We find the value of the variable "x":

We apply root to both sides of the equation to eliminate the exponent:

[tex]x \leq \pm \sqrt {16}\\x \leq \pm4[/tex]

We found the first solution with the positive value:

[tex]x \leq4[/tex]

We use the negative value to find the other solution. Since it is an inequality, the sign of the inequality changes in the negative portion of the solution.

[tex]x \geq-4[/tex]

So, the roots are:

[tex]x_ {1} \geq-4\\x_ {2} \leq + 4[/tex]

The solution is given by the values of "x" greater than or equal to -4 and less than or equal to 4

Answer:

Option C

If P (x,y) is the point on the unit circle defined by real number 0, then csc0=_.​

Answers

Answer:

cscθ = [tex]\frac{1}{y}[/tex]

Step-by-step explanation:

cscθ = [tex]\frac{Hypotenuse}{opposite}[/tex]

For a unit circle, radius = 1

hence, hypotenuse = 1

opposite = y

cscθ = [tex]\frac{1}{y}[/tex]

Please help please help

Answers

Answer:

D

Step-by-step explanation:

The tenth column value is the first after the decimal point, that is 3

To round the required value of 3

• If the value following 3  ≥ 5, round 3 up to 4

• If the value following 3 < 5 , then leave as 3

Here the value following 3 is 5 so round 3 up to 4

All other digits remain unchanged.

Thus

3, 295.351 ≈ 3, 295.4 → D

Solve the follwoing questions: a. 17 x 10 = b. 24 x 100 = c. 6 x 1000 =

Answers

Answer:

a. 17 x 10 = 170

b. 24 x 100 = 2,400

c. 6 x 1000 = 6000

Step-by-step explanation:

Answer:

a. 170

b. 2,400

c. 6,000

Step-by-step explanation:

You need to make the multiplications that are indicated in each option:

Option a: you only need to multiply the first factor (17) by the digit that is not zero (1) of the second factor (10), and then write all the zeros that has the second factor:

 [tex]17*10=170[/tex]

Option b: you need to multiply the first factor (24) by the digit that is not zero (1) of the second factor (100), and then write all the zeros that has the second factor:

 [tex]24*100=2,400[/tex]

Option c: you have to multiply the the first factor (6) by digit that is not zero (1) of the second factor (1000), and then write all the zeros that has the second factor:

 [tex]6*1,000=6,000[/tex]

4(x+1.5)=38 solve for x

Answers

Answer:

x = 8

Step-by-step explanation:

4(x+1.5)=38

Distribute the 4

4x +6 = 38

Subtract 6 from each side

4x+6-6 = 38-6

4x = 32

Divide each side by 4

4x/4 = 32/4

x = 8

find the sum of -6/ab + a^2/b^2

Answers

Answer:

[tex]\frac{1}{ab^{2} }[/tex] (a³ - 6b)

Step-by-step explanation:

[tex]\frac{-6}{ab} + \frac{a^{2} }{b^{2} }[/tex]

= [tex]\frac{-6b + a^{3} }{ab^{2} }[/tex]

= [tex]\frac{1}{ab^{2} }[/tex] (a³ - 6b)


(07.02 LC)
Ash recycles 7 plastic bottles every week. Which expression shows the total number of plastic bottles he recycles in w weeks? (1 point)


7 + w

7 + 7w

7w

w over 7

Answers

Answer: 7w

Step-by-step explanation:

In one week, Ash recycles 7 * 1 = 7 bottles

In two weeks, Ash recycles 7 * 2 = 14 bottles

So, in w weeks, he recycles 7 * w = 7w bottles!

Hope this helps!

Answer:

7w is the correct answer

Step-by-step explanation:

Help please I can’t solve

Answers

Answer:

IT would be 6 because 10 X 6 = 60 just take away the 0

Step-by-step explanation:

Use a substitution to differentiate the expression with respect to x:

[tex] \frac{1}{x + 1} + x[/tex]​

Answers

[tex]\bf y=\cfrac{1}{x+1}+x\qquad \qquad \begin{cases} u=x+1\\ \frac{du}{dx}=1\\[-0.5em] \hrulefill\\ u-1=x \end{cases}\qquad \qquad y=\cfrac{1}{u}+(u-1) \\\\\\ y=u^{-1}+u-1\implies \cfrac{dy}{du}=\stackrel{\textit{chain-rule}}{-u^{-2}\cdot \cfrac{du}{dx}}+\stackrel{\textit{chain-rule}}{1\cdot \cfrac{du}{dx}}+0 \\\\\\ \cfrac{dy}{dx}=-\cfrac{1}{u^2}\cdot 1+1\cdot 1\implies \cfrac{dy}{dx}=-\cfrac{1}{u^2}+1\implies \cfrac{dy}{dx}=-\cfrac{1}{(x+1)^2}+1[/tex]

Given:f=(5,- -1/5) and g=(-1,3/10) find 3f+5g

Answers

since f(5,-1/5),g(-1,1/3)therefore 3f=3x(5,-1/5)=(15,-3/5)and 5g=5x(-1,3/10)=(-5,3/2)by adding both of them:(15,-3/5)+(-5,3/2)=(10,9/10)

Which expression could be used to find the distance between point A and point B?

(A) |-4-1|
(B) |-4-(-1)|
(C) |-1+4|
(D) |-1-(-4)|

Answers

Answer:

D

Step-by-step explanation:

because it seem to be correct

D is the answer.....!!!!!

You have violin lessons every fourth day and singing lessons every
fifth day. Today you have both lessons. In how many days will you
have both lessons on the same day again?

Answers

Answer:

Every 20 days.

Step-by-step explanation:

I just did 5 times 4 to get the answer

In 20 days there will be both lessons on the same day again.

What is combination?

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.

Given:

Violin class= 4th day

singing lesson= 5th day

So, the possible number of days on which we have both violin and singing class

=4 x 5

=20 days

Hence,  20 days there will be both lessons on the same day again.

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Teresa's bread recipe uses 18 cups of flour and 6 cups of sugar to make some bread. What is the ratio of sugar to flour in lowest terms?


HALPPPPP QUICKLY PLZ, IF U CAN! :) PLLLLLLLLEEEEEEEAAASSSSEEEEE

Answers

Answer:

The ratio of sugar to flour in it's lowest terms is 1:3.

Gayle and Jerry had some money. After their mother gave each of them $20, Gayle had twice as much money as Jerry and Jerry had $50 less than Gayle. How much money did Gayle have at first?

Answers

Answer:

$100

Step-by-step explanation:

Final answer:

To find out how much money Gayle initially had, we solved the two equations provided by the problem: G + 20 = 2(J + 20) and J + 20 = G + 20 - 50. Solving these equations, it was found that Gayle initially had $90.

Explanation:

The question is asking us to figure out how much money Gayle had before their mother gave them each $20. Let's denote the amount of money Jerry initially had as J and the amount of money Gayle initially had as G. According to the problem, after the mother gave them $20 each, Gayle had twice the amount of Jerry's, which mathematically translates to G + 20 = 2(J + 20). Likewise, Jerry had $50 less than Gayle, which can be written as J + 20 = G + 20 - 50. Thus we are given a system of two equations that we can solve simultaneously.

Both equations can be simplified to G = 2J + 20 and J = G - 50. By substituting J = G - 50 in the first equation, we can solve for G to get G = 2(G - 50) + 20 which further simplifies to G = $90. Thus, Gayle initially had $90.

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Help me asap!!!!! Very important!!

Answers

Answer:

strong negative linear correlation-0.986

Step-by-step explanation:

You need to notice that when altitude goes up, temperature goes down. That means the correlation is negative.

The table shows the temperature decrease to be monotonic (nowhere does it go up when altitude increases), so the correlation is strong.

The strong negative correlation number available to you is -0.986.

___

If you want confirmation, you can put the numbers into your favorite graphing calculator and tell it to compute the correlation for you.

what the mean "let bygone be bygone"​

Answers

Answer:

let the past stay in the past

Step-by-step explanation:

Can someone please help me

Answers

Answer:

Step-by-step explanation:

abs(x)>0

This statement is false because what happens when x = 0? For all other instances, the statement is true, but not for 0.

Zero is not greater than itself.

The weights of nine different cats in pounds were used to create the box plot above. Which of the following is the interquartile range of the set of weights?
A. 11
B. 3
C. 1.5
D. 7

Answers

Answer:

the answer is B: 3

Step-by-step explanation:

you look at the verticle line on the left side of the box which represents the lower quartile then to the right of the verticle line represents the upper quartile

To find the interquartile range, subtract the lower quartile, 9.5, from the upper quartile, 12.5

12.5 - 9.5 = 3

Analyze the diagram below and complete the in destructions that follow

Answers

Answer:

option D

8√2

Step-by-step explanation:

Given in the question a right angle triangle,

hypotenuse = x

height = 8

We can use trigonometry identity to solve x

we know that,

sinФ = opposite / hypotenuse

sin(45) = 8 / x

x = 8 / sin(45)

x = 8√2

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