Don’t understand b) pls explain

Dont Understand B) Pls Explain

Answers

Answer 1

Answer:

−s2+2st−t2−s+t

Step-by-step explanation:

−(s−t)−(s−t)2  

distributed would be

−s+t+−s2+2st+−t2

Answer 2

Answer:

Below in bold.

Step-by-step explanation:

-(s - t) - (s - t)^2       Take out  (s - t):

= (s - t)( -1 - (s - t)

= (s - t)(t - s - 1). <----  Factored form.

Or, if you want to  expand the expression:

-(s - t) - (s - t)^2

= - s + t - (s^2 - 2st + t^2)

= -s^2 + 2st - t^2 - s + t.


Related Questions

Is 3pi/4pi a rational number?

Answers

Answer:No

Step-by-step explanation:

Pi is irrational

a line passes through the point (0,-4) and has a slope of 3/2. what is equation of the line?

Answers

Answer:

[tex]y=\frac{3}{2}x-4[/tex]

Step-by-step explanation:

Use the equation of a line: y=mx+b.

First, plug in all of the values that you know.  In this case, we are given x, y, and m (the slope).

[tex]y=mx+b\\-4=(\frac{3}{2})(0)+b\\-4=b[/tex]

Now that we have the b value, we can create the equation:

[tex]y=\frac{3}{2}x-4[/tex]

Make statement true 0.06 is 10 times

Answers

0.06 is 10 times 0.006; 0.06 = 10 * 0.006

You can find this by solving 0.06/10 = 0.006

need a lil help.. EDGE2020

Answers

Answer:

2nd option

Step-by-step explanation:

2 parts ginger ale to 3 parts raspberry juice

what is the opposite of the integer 62?

Answers

Answer: -62

Step-by-step explanation:

Answer:

-62 is the correct answer

How are you doing today, if no answer thats fine to.​

Answers

Answer:

I am doing great!

Step-by-step explanation:

Answer:

hello im doing good

Step-by-step explanation:

HELP WILL MARK BRAINLIEST

Answers

Answer:

a) A = (5, 1), b) A = (1,11)

Step-by-step explanation:

given A is (2,3), question a is represented by a shift of this point 3 units to the right, and 2 units down which means (x,y) → (x +3, y - 2) or T(3,-2)(x,y). (2,3) → (x + 3, y - 2) = (2 + 3, 3 - 2) = (5, 1).

Question b represents a shift of this point one unit to left, and 8 units up which is represented by (x,y) → (x -1 , y + 8) or T(-1,8)(x,y).

(2,3) → (x - 1, y + 8) = (2 - 1 , 3 + 8) = (1, 11).

3. A test consists of 30 true/false questions. To pass the test a student must answer at least 18 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?

Answers

Answer: the answer would be15%

Step-by-step explanation:

61% percent he pass depending on how long he studied

The lines of the equations are parallel, perpendicular, or neither.
y=-x +3
y=-x-3
O parallel
O perpendicular
O neither

Answers

Answer:

Parallel

Step-by-step explanation:

The have equal slopes

A construction company requires 25,400 bricks
for a job. If it allows 2% more bricks for breakage, how
many bricks must it order?

Answers

25,908 bricks must be ordered

Luke had $9. He had to spend 3/4 of it for a birthday gift. How much cash money did
he spend?

Answers

Answer:

He spent $2.25.

Step-by-step explanation:

Multiply $9 by 3/4 and we get $6.75.

Now subtract $6.75 from $9.

We get $2.25

Can you help me please

Answers

Answer

3

Step-by-step explanation:

(4-1)^2+(8-8)^2=9

square root of 9 is 3

Which polynomial is in standard form?
2x-3x+ 10x
-16x2-9x+12
15x-6x2+3
-7x?+ 9x9 - 11x

Answers

Answer:

[tex]-16x^2-9x+12[/tex]

Step-by-step explanation:

[tex]2x-3x+ 10x[/tex]

[tex]-16x^2-9x+12[/tex]

[tex]15x-6x^2+3[/tex]

[tex]-7x+ 9x^9 - 11x[/tex]

Standard form is when the polynomial's terms's degrees go down so the highest power is the first and the lowest is the last.

We see that the first expression can be more simplified so that isn't right.

We see that the second expression is in standard form so that might be right.

We see that the third expression has the highest power as the second term so that is wrong

We see that last expression is the same as the third one so that is also wrong.

We can conclude that [tex]-16x^2-9x+12[/tex] is the correct one or in standard form.

If f(x)=×^2+7x-5 and you divide by x-2, What is the quotient and remainder?

Answers

Answer:

The quotient is : x+9

The remainder is : 13

Step-by-step explanation:

The question requires you to perform the long division method;

This will be;

[tex]x-2\sqrt{x^2+7x-5}[/tex]

start with the x term in x-2 and the first term in the function, x², to get x then multiply the x with x-2 to get x²-2x and perform the operation below;

x-2√x²+7x-5 -----------to first get x and then multiply x*[x-2]⇒x²-2x

    -  x²-2x+0 ------------perform subtraction of like terms

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

            9x-5  ----now divide this answer by x-2 ,starting with x and 9x

----------------------This will give , 9 then multiply  9 by x-2 to get 9x-18 and perform the subtraction operation as;

             9x-5

      -      9x-18

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

                     13

So the answer will be; x+9 remainder 13

How many times greater was the temperature in Miami (45) than the lowest in San Diego (25)

Answers

Answer:

The temperature in Miami is 9/5 times the temperature in San Diego.

Step-by-step explanation:

Ratios

To compare the temperature in Miami (45) with the temperature in San Diego (25), we use the division or ratio between both numbers:

[tex]\displaystyle \frac{45}{25}[/tex]

Simplify the fraction dividing by 5:

[tex]\displaystyle \frac{9}{5}[/tex]

Since the relation between them is 9/5, it means the temperature in Miami is 9/5 times the temperature in San Diego.

HELPPPP!!!! PLEASEEE!!!
Which statement below is true?
A. If p → q is true, then q → p is true.
B. If p → q is true and p is true, then q is true.
C. If p → q and q → r are true, then q → p is true.
D. If p → q and q → r are true, then r → p is true.

Answers

Answer: i believe the answer is B

Step-by-step explanation: because if p to q is true, then that means p and q are both true!

The gym charges a membership fee of $75 and a
monthly fee of $25. If you have budgeted $325 for a
membership, how many months are you able to
afford?
Answers:
: 10
:: 3
:: 15
:: 6

Answers

we be bakos thoes LOOK ET EM TOES

Richard and Gloria ran a 10-kilometer race. Gloria gave Richard a head start by letting him begin 2.2 kilometers in front of the start line. The distances of Richard and Gloria past the start line as the race progressed can be represented by linear functions and are shown in the table of values and graph below. Whose time was faster, and by how much?


Richard’s Distance Past the Start Line
Time (minutes)
5
10
15
20
25
Distance (kilometers)
2.8
3.4
4.0
4.6
5.2

A graph titled Gloria's Distance Past the Start Line has time (minutes) on the x-axis and Distance (kilometers) on the y-axis. A line goes through points (5, 0.8), (10, 1.6), (15, 2.4), (20, 3.2) and (25, 4).
Gloria’s time was 0.5 minutes faster.
Richard’s time was 0.5 minutes faster.
Gloria’s time was 2.5 minutes faster.
Richard’s time was 2.5 minutes faster.

Answers

Answer:

Gloria's time was 2.5 minutes faster

Step-by-step explanation:

Statements with nested quantifiers: English to logic, part 4. About A student club holds an election for officers. Before the voting, members can nominate each other. It is also possible for a member to nominate himself or herself. Some of the members are new members. Some of the members are currently officers. The domain is the set of members of the club. One of the members of the club is named Sam. Define the following predicates. N(x, y): person x nominated person y for a position. W(x): person x is a new member. O(x): person x is currently an officer. Give a quantified expression that is logically equivalent to each of the following statements.
(a) All the new members nominated all the officers.
(b) One of the current officers did not nominate anyone.
(c) Everyone nominated someone.
(d) Someone nominated everyone.
(e) Everyone nominated someone other than themselves.
(f) Exactly one person nominated Sam.

Answers

Answer:

someone please answer this equation

Step-by-step explanation:

i have this on my test and i really need help with it

2/3+1/4. Show me work

Answers

Answer:

11/12

Step-by-step explanation:

2/3 to 8/12

1/4 to 3/12

8/12+3/12=11/12

Answer:

11/12

Step-by-step explanation:

hi! let's start off by finding the LCM to find a common denominator for these fractions. the LCM of 3 and 4 is 12. so, we can look at what we need to multiply each denominator by to get 12.

3*4 is 12 and 4*3 is 12, so we have to multiply the first fraction by 4/4 (which is equivalent to 1) and we have to multiply the second fraction by 3/3.

this becomes 8/12 and 3/12, which are equivalent to their original forms.

now, we can add these by adding the numerators and keeping the denominators the same.

(8+3)/12

11/12

theres your answer!

What is the fraction
12
30
in simplest form?
O
15
3
10

Answers

Answer:

2/5

Step-by-step explanation:

does anybody understand triangle angle theorems??

Answers

Answer:

It means that states that the three interior angles of any triangle add up to 180 degrees.

Have A Nice DAY!!!!!!

:-)

This equation has one solution.
5(x - 1) + 3x = 7(x + 1)
What is the solution?

Answers

5x-5 +3x = 7x+7

8x -5 = 7x + 7
-7x. -7x
X -5= 7
+5= +5
X=7+5
X=12

The answer is x=12

Answer:

x= 12

Step-by-step explanation:

I got it right on edge

The Sharks Aquatic Club recently held a fundraiser to raise money for a local charity. The swimmers received money for each lap that they swam during a one-week period. The three swimmers who raised the most money were Rita, John, and Rodell. Together they swam a total of 2125 laps. John swam three times as many laps as Rita, and Rodell swam 25 more laps than John. How many laps did each swimmer swim?

Answers

John swam 900
Rita swam 300
Rodel swam 925

The number of laps covered by Rita, John, and Rodell will be 300, 900, and 925, respectively.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The three swimmers who collected the most cash were Rita (A), John (B), and Rodell (C). Together they swam a sum of 2125 laps. John swam threefold the number of laps as Rita, and Rodell swam 25 additional laps than John.

Then the equations are given as,

A + B + C = 2125       ...1

B = 3A                       ...2

C = 25 + B                ...3

From equations 1, 2, and 3, then we have

B/3 + B + 25 + B = 2125

B/3 + B + B = 2100

(7/3)B = 2100

B = 2100 x 3 / 7

B = 900 laps

Then the value of A will be given as,

A = 900 / 3

A = 300

Then the value of C will be given as,

C = 900 + 25

C = 925

The number of laps covered by Rita, John, and Rodell will be 300, 900, and 925, respectively.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Determine what must be multiplied so that the expression below will have a common denominator. Use the backslash / to type in a fraction.

Answers

Answer:

Multiply the first fraction by [tex]\frac{x+4}{x+4}[/tex]

Multiply the second fraction by [tex]\frac{x-4}{x-4}[/tex]

Step-by-step explanation:

Given

[tex]\frac{4}{x^2 - 16} + \frac{3}{x^2 + 8x + 16}[/tex]

Required

Make the denominator equal

[tex]\frac{4}{x^2 - 16} + \frac{3}{x^2 + 8x + 16}[/tex]

Factorize the denominator

[tex]\frac{4}{x^2 - 4^2} + \frac{3}{x^2 + 4x + 4x+ 16}[/tex]

[tex]\frac{4}{(x - 4)(x + 4)} + \frac{3}{(x+ 4)(x + 4)}[/tex]

Multiply the first fraction by [tex]\frac{x+4}{x+4}[/tex]

Multiply the second fraction by [tex]\frac{x-4}{x-4}[/tex]

[tex]\frac{x+4}{x+4} * \frac{4}{(x - 4)(x + 4)} + \frac{3}{(x+ 4)(x + 4)} * \frac{x-4}{x-4}[/tex]

[tex]\frac{4(x + 4)}{(x - 4)(x + 4)(x + 4)} + \frac{3(x - 4)}{(x+ 4)(x + 4)(x - 4))}[/tex]

[tex]\frac{4(x + 4)}{(x^2 - 16)(x + 4)} + \frac{3(x - 4)}{(x^2 - 16)(x + 4))}[/tex]

The expression now have the same denominator

Select three ratios that are equivalent to 11:1 A: 1: 11 B 22:2 C 55:5 D 9:99 E 110: 10

Answers

Answer:

B 22;2 c 55:5 E 110:10

Step-by-step explanation:

multiplying is key  

Answer:

B,C,E

Step-by-step explanation:

divide each of them and if the result is equal to 11 so it is equivalent to 11:1

The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.17, and 7.18. (a) Calculate the sample mean. Round your answer to 3 decimal places. (b) Calculate the sample variance. Round your answer to 6 decimal places. (c) Calculate the sample standard deviation. Round your answer to 3 decimal places. (d) Which of the following are potential major sources of variability in the experiment

Answers

Answer:

(a)7.185

(b)0.000371

(c) 0.019

(d)Sample variance and Sample standard deviation

Step-by-step explanation:

We are given the following sample data.

7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.17, 7.18.

(a) Calculate the sample mean. Round your answer to 3 decimal places.

The formula for sample mean =

Sum of terms/Number of terms

= 7.15 + 7.20+ 7.18+7.19+7.21+7.20+7.17+ 7.18/8

= 57.48/8

= 7.185

(b) Calculate the sample variance. Round your answer to 6 decimal places.

The formula for sample Variance =

(x - mean)²/n - 1

n = 8

Sample variance = (7.15 - 7.185)² + (7.20-

7.185)²+ (7.18 -7.185)² + (7.19 -7.185)² + (7.21 - 7.185)² + (7.20 - 7.185)² + (7.17 - 7.185)² + (7.18 - 7.185)² /8 - 1

= 0.001225 + 0.000225+ 0.000025+ 0.000025 + 0.000625 + 0.000225 + 0.000225 + 0.000025/7

= 0.0026/7

= 0.000371428571

Approximately to 6 decimal places = 0.000371

(c) Calculate the sample standard deviation. Round your answer to 3 decimal places.

The formula for Sample Standard Deviation = √Sample variance

= √0.000371428571

= 0.01927248223

To 3 decimal places = 0.019

(d) Which of the following are potential major sources of variability in the experiment

Sample variance

Sample standard deviation

Is this correct or no(Direct answer please

Answers

Yes, I believe this is correct.

A train travels 100 miles per minute. One mile is about 1.61 kilometers and 1 hour is 60 minutes.
Convert train's speed in kilometers per hour?

Answers

161 kilometers per hour

Answer:

9660 kn per hour

Step-by-step explanation:

Try factoring this before moving on: 25+10x+x^2

Answers

Answer:

Step-by-step explanation:

x2 + 10x + 25

x2 + 5x + 5x + 25

x (x + 5) + 5(x + 5)

(x + 5) (x + 5)

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