Error Analysis The solution shown for the equation is
What is the error?
-7(2-1) - 21
-14-7-21
- 7 = 35
r-5
The solution is (Type the value of r)

Answers

Answer 1
The error is when you multiply -7 by -1 it is 7 not -7 so,
-14+7-21
-7-21
-28
Also where did r come from you asking 2 different questions

Related Questions

h(x)=x2-x;h(5) find function

Answers

Answer:

h(5) = 20

Step-by-step explanation:

Assume that '2' is an exponent.

So the question for you should be:-

[tex] \displaystyle \large{h(x) = {x}^{2} - x}[/tex]

We want to find h(5); we substitute x = 5 in.

[tex] \displaystyle \large{h(x) = {5}^{2} - 5}[/tex]

5^2 is 5•5 = 25.

[tex] \displaystyle \large{h(x) = 25 - 5} \\ \displaystyle \large{h(x) = 20}[/tex]

Therefore, h(5) is 20.

Make my life easier and do 5-7 please.

Answers

Answer: 5. -64 6. 81 7. 144

Step-by-step explanation:

5. -4 x -4 = +16. +16 x -4 = -64

6. -3 x -3 = 9. 9 x -3 = -27. -27 x -3 = 81

7. kiera + 11 of her friends = 12 people total if 12 people each give fliers to 12 people, its 12 x 12 which is 144

Answer:

(-4)³; (-3)⁴; 12²

Step-by-step explanation:

Q5-4 * - 4* - 4 = (-4)³Q6-3 * -3 * -3 * - 3 = (-3)⁴Q7

Each 12 people gives 12 fliers to others. The number of people who gets fliers is:

12 * 12 = 12²

The number T of teams that have participated in a robot-building competition for high-school students over a recent period of time x(in years) can be modeled by T(x) = 17.155x^2 + 193.68x + 235.81, 0 ≤ x ≤ 6.

After how many years is the number of teams greater than 1000? Justify your answer.

Answers

Solving the quadratic equation, it is found that the number of teams is greater than 1000 after 3.1 years.

The number of teams after x years is given by:

[tex]T(x) = 17.155x^2 + 193.68x + 235.81[/tex]

Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:

[tex]17.155x^2 + 193.68x + 235.81 = 1000[/tex]

[tex]17.155x^2 + 193.68x - 764.19 = 0[/tex]

Which has coefficients [tex]a = 17.155, b = 193.68, c = -764.19[/tex], then:

[tex]\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66[/tex]

[tex]x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1[/tex]

[tex]x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3[/tex]  

We want the positive root, so the number of teams is greater than 1000 after 3.1 years.

A similar problem is given at https://brainly.com/question/10489198

1. Refer to the equation 2x − 4y = 12.
(a) Create a table of values for at least 4 points. Show your work on how you found the values for each coordinate pair, and validated the points were on the line.

Work for Point 1



Work for Point 2



Work for Point 3



Work for Point 4

Answers

Answer:

1a

2d

3I

4j

5b

6o

7q

Step-by-step explanation:

Evaluate the expression for the given values of the variables.

5p + 3q for p = 2 and q = −8

When p = 2 and q = −8, the expression is equal to...

Answers

Answer:

[tex] \hookrightarrow \: { \rm{5p + 3q}}[/tex]

p is 2q is -8

[tex] = { \tt{5(2) + 3( - 8)}} \\ \\ = { \tt{10 - 24}} \\ \\ = { \underline{ \underline{ \tt{ \: \: - 14 \: \: }}}}[/tex]

A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance from the finish
minutes.
O f(x)=x+4
O f(x)=- tox+4
O f(x)=-*x+10
O f(x)=-*x+10


Please Real answers only, i beg you.

Answers

It’s the last answer:

f(x) = -(1/4)x+ 10

The plus 10 represents the 10km away he is at the start, and the -(1/4)x shows he is running 1/4 of a km closer to the finish every minute.

An engineer earns $108 000 annually. Deductions
of $3 975 are made each month.
Calculate:
(a) his gross monthly salary
(b) his net monthly salary

Answers

Answer:

9,000

5,025

Step-by-step explanation:

12+15-3
Please show me the steps cuz im very confused. I hate math and ive a test for this tomorrow

Answers

Answer:

24

Step-by-step explanation:

Add 15 to 12 which is 27 then subtract 3 from 27 which gives you 24

Answer:

it's 24

Step-by-step explanation:

first add up the 12 and 15 that equals 27 now subtract 3 that's going to be 24

What is the equation of the line parallel to y = -5x + 6 and passes through the point (6,-8)?​

Answers

Answer:

y = -5x + 22 is the equation of our parallel line

Step-by-step explanation:

remember a parallel line will have the same slope.

So let's begin by using the equation above and substituting the points.

[tex]y = - 5x + b \\ - 8 = - 5(6) + b \\ - 8 = - 30 + b \\ 30 - 8 = b \\ b = 22[/tex]

therefore our parallel line would be

[tex]y = - 5x + 22[/tex]

Arithmetic sequence for a1=5

Answers

Answer:

a =5that is the answer ok

please i need ASAPPPPP ILL GIVE BRAINLIEST!!!!

Hans baked 51 cookles. His family ate m of them. Using m, write an expression for the number of cookles that remained. + ローロ ロメロ​

Answers

Answer:

[tex]51-m=n[/tex]

Step-by-step explanation:

M - Number of cookies his family ate

N - The remaining number of cookies left

Solve each proportion; ( show your work )

1. 6/7 = ?/42

2. 12/8 = 30/?

Answers

Answer:

6/7 = 36/42

12/8 = 30/20

Step-by-step explanation:

(6*?) / (7*6) = ?/42

(6*6) / (7*6) = 36/42

(12*2.5) / (8*?) = 30/?

(12*2.5) / (8*2.5) = 30/20

Hope this helps!

There's a roughly linear relationship between the length of someone's femur (the long
leg-bone in your thigh) and their expected height. Within a certain population, this
relationship can be expressed using the formula h = 63.4 +2.41f, where h
represents the expected height in centimeters and f represents the length of the
femur in centimeters. What is the meaning of the f-value when h=123?

Answers

Answer:

24.73

Step-by-step explanation:

h=63.4+2.41f

h=123

123=63.4+2.41f

59.6=2.41f

24.73=f

If the value of h is 123. Then the length of the femur will be 24.73 centimeters.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The linear equation is given below.

h = 63.4 + 2.41 f

Where h represents the expected height in centimeters and f represents the length of the femur in centimeters.

If the value of h is 123. Then the f-value is given as,

123 = 63.4 + 2.41 f

2.41 f = 59.60

f = 24.73 cm

Assuming that the worth of h is 123. Then, at that point, the length of the femur will be 24.73 centimeters.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

Michael walks a group of dogs 3 miles every day. The graph below shows the relationship between the number of dogs in the group and the distance he walks the dogs each day​

Answers

Can you please add the graph, plus the question?

Can someone help pls I got confused

Answers

#1

x=46°(Opposite interior angles)

#2

[tex]\\ \sf\longmapsto x+68=180\implies x=180-68=112°[/tex]

#3

x=111°(Corresponding interior angles)

#4

x=37°(Opposite angles)

#5

x=58°(Opposite interior angles)

#6

x=175°(Corresponding interior angles)

#7

x=25°(Corresponding interior angles)

Answer:

Hey there,

(1) x = 46° ( Alternative angles are equal)

(2)  x + 68 = 180 ( Interior angles are added up to 180° )

     x = 112°

(3)  x = 111° (  Corresponding angles are equal)

(4)  x = 37° ( Opposite angles are equal )

(5)  x = 58° ( Alternative angles are equal )

(6) x = 175° ( Corresponding angles are equal )

(7)  x = 26° ( Corresponding angles are equal )

Hope this helps you

Let me know if you have any other questions :-)

Select the correct answer.
Consider these functions:
f(x) = x + 1
g(x)= 2/x
Which polynomial is equivalent to (fºg)(x)?

Answers

Answer:

C. 2/x +1

Step-by-step explanation:

Tell whether the ordered pair is a solution of the equation. 1. 2x + y^2 = 10; (3,2) 2. 1/2x - 4y = 4; (10,1/2) 3. x^2 + y^2 = 2; (0,1) Help me

Answers

Answer:

it is

Step-by-step explanation:

Leila puts an integer into the "In" box of each machine.
She finds that the answer that appears in the "Out" box of Machine A is the same as the
answer that appears in the "Out" box of Machine B.
What was the answer produced by both machines?
Show how you figured it out

Answers

The machines represent equivalent expressions.

The output produced by both machines is 372

The equation represented on machine A is:

[tex]\mathbf{y = 2(5x + 3) - 24}[/tex]

The equation represented on machine B is:

[tex]\mathbf{y = 4(2(x + 11) - 7)}[/tex]

Where: x and y represent the inputs and the outputs, respectively

When the outputs are the same, it means:

[tex]\mathbf{y = y}[/tex]

So, we have:

[tex]\mathbf{2(5x + 3) - 24 = 4(2(x + 11) - 7)}[/tex]

Open brackets

[tex]\mathbf{10x + 6 - 24 = 8x + 88 - 28}[/tex]

[tex]\mathbf{10x - 18 = 8x + 60}[/tex]

Collect like terms

[tex]\mathbf{10x - 8x = 18 + 60}[/tex]

[tex]\mathbf{2x = 78 }[/tex]

Divide both sides by 2

[tex]\mathbf{x = 39 }[/tex]

Substitute 39 for x in [tex]\mathbf{y = 2(5x + 3) - 24}[/tex]

[tex]\mathbf{y = 2 \times (5 \times 39 + 3) - 24}[/tex]

[tex]\mathbf{y = 372}[/tex]

Hence, the output produced by both machines is 372

Read more about equivalent expressions at:

https://brainly.com/question/15715866

Plz I need help will rate 5 stars

Answers

Answer:

The answer is :

8

.......

-5s-5x+5 s 50
solve this

Answers

-5s-5x+5s+50     Combine like terms

5x+50

Answer:

[tex]{ \tt{ - 5s - 5x + 5s = 50}} \\ \\ { \tt{ - 5x = 50}} \\ \\ _\hookrightarrow \: ^{ \rm{answer}} \\ { \tt{x = - 10}}[/tex]

YALL PLEASE HELP
NO ONE IS ANSWERING THIS DANG QUESTION -n-

Answers

The answer to this question is 0.16666666666

For my answer I got 1/6

MIK
chocolate
20%
Dark
chocolate
45%
White
chocolate
35%
A survey was conducted to determine people's chocolate preferences. The results are shown on the circle graph.
If 500 people were surveyed, how many more people preferred dark chocolate over milk chocolate?
-0)
A)115
B)125
C)135
D)150

Answers

Answer:

B; 125

Step-by-step explanation:

45% of 500 is 225. 20% of 500 is 100

225 - 100 = 125

Hope this helps :)

Answer:

B)125

Step-by-step explanation:

i'm just guessing since i don't know the answer. I hope it's right

Find the solution set of the following 1. (2x + 3)(2x – 1) = 10 2. (x + 8)^2 – 9x = 52 3. 15 + x(x + 2x) = 10 4. x(x – 4) = 32 5. 3x(x – 2) = 12x​

Answers

Answer: 12x

Step-by-step explanation:

(

2

+

3

)

(

2

1

)

=

1

0

2

(

+

8

)

2

9

=

5

2

3

1

5

+

(

+

2

)

=

1

0

4

(

4

)

=

3

2

5

3

(

2

)

=

1

2

William is saving up to buy a new phone. He already has $23 and can save
an additional $8 per week using money from his after school job. How
much total money would William have after 10 weeks of saving? Also,
write an expression that represent the amount of money William have
saved in w weeks.

Answers

Step-by-step explanation:

current Amount of money 23

8x10=80

80+23=103

William will have 103$ after 10 weeks

Complete the table.
f(x) = x - 1
х f(x)
3
4
5
6
Submit

Answers

Answer:

[tex]f(x) = x - 1 \\ f(3) = 3 - 1 = 2 \\ f(4) = 4 - 1 = 3 \\ f(5) = 5 - 1 = 4 \\ f(6) = 6 - 1 = 5[/tex]

Answer:

See attached photograph

Step-by-step explanation:

It is a simple matter of subtracting 1 from the given x value. For example, when x=3 we need to subtract 1 away from it to find f(x); so, f(x)=2.

Side note: the term "f(x)" means "y", so when plotting this information on a graph, you will use the f(x) column as your y value.

solve for x.

- 6 ≥ 10 - 8 x

Answers

Answer:

[tex]x \geqslant 2 \: \: \: \: or \: \: \: \: 2 \leqslant x \\ [/tex]

Step-by-step explanation:

[tex] - 6 \geqslant 10 - 8x \\ - 6 - 10 \geqslant - 8x \\ - 16x \geqslant - 8x \\ \frac{ - 16}{ - 8} \leqslant x \\ 2 \leqslant x[/tex]

Answer:

x ≥ 2

Step-by-step explanation:

-6 ≥ 10 - 8x

=> 8x - 6 ≥

=> 8x ≥ 10 + 6

=> 8x ≥ 16

=> x ≥ 16/8

=> x ≥ 2

Write an equation with infinitely many solutions that has the Expression 3x+6 on the left side of the equal side. Demonstrate that your equation has infinitely many solutions.​

Answers

3x+6=3x+6 I think that is how you do it but I’m really bad at math

[tex]x^{2} -25+24[/tex]

Answers

Answer:

(x-24)(x-1)

Step-by-step explanation:

common sense + practice

kinda did it in my head

5 divided by 29.95 show work please ​

Answers

Answer:

5.99

Step-by-step explanation:

Do the division by doing:

0 5. 9 9 0

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

5  |    2  9. 9 5 0

− 0        

 2 9      

− 2 5      

   4 9    

 − 4 5    

     4 5  

   − 4 5

       0 0

     −   0

         0

Multiply.Enter your answer in scientific notation.
(7x 10^*13)(3.39 x 10^*5)=

Answers

(7⋅ 3.39)(10^*13⋅10^*5)

Multiply 7 by 3.39.
23.73 ( 10^*13⋅10^*5)


23.73• 10^*13+5^*

Add 13 &5
23.73•10^*18

Scientific notation= 2.373 • 10^*19

I hope it helps you
Other Questions
Plz help its due tonight!!! PLEASE HELP ME!!!! NO LINKS PLEASE!!!The following excerpt is the preamble to the US Constitution. Compare the preamble of the 1842 Choctaw Constitution with this text. How are the two similar? How are they different?We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.We, the people of the Choctaw Nation, having a right to establish our own form of Government, not inconsistent with the Constitution, Treaties and Laws of the United States: by our Representatives, assembled in Convention at Nanihwaiya on Thursday the tenth day of November, 1842, in order to establish Justice, insure Tranquility, promote the general Welfare, and secure to ourselves and our Posterity the right of Life, Liberty and Property: We mutually agree with each other to form for ourselves a free and independent Government.And we do hereby recognize the boundaries assigned the Choctaw Nation by the second article of the treaty made and concluded with the United States of America at Dancing Rabbit Creek on the 27th day of September 1830: viz. beginning near Fort Smith where the Arkansas boundary crosses the Arkansas River, running thence to the source of the Canadian Fork, if in the limits of the United States, or to those limits, thence due South to Red River, thence down Red River to the western boundary of the State of Arkansas, thence North along that line to the beginning: the boundary of the same to be agreeable to the Treaty made and concluded at Washington City in the year 1825. 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