Mark incorrectly evaluated the expression 4x+12-x to the power of 2 where is x-2. Identify and correct mark’s mistake.


Plsss help mw

Answers

Answer 1

Answer:

The value of [tex]4x+12-x^2[/tex] is 16.

Step-by-step explanation:

The given expression is [tex]4x+12-x^2\ at\ x=2[/tex].

Put x = 2 in the above expression as follows :

[tex]4x+12-x^2=4(2)+12-(2)^2\\\\=8+12-4\\\\=16[/tex]

Hence, the final answer is 16.


Related Questions

What is the equation in standard form?

Answers

Answer:

just cause

Step-by-step explanation:

Slope:

8

y-intercept:

2

this is the answer to that question

I am stuck on this question. I need help!​

Answers

The correct answer is D

Step 6: Choose the answer that has the numbers
below listed from least to greatest.
3
6
6.285, 627 %, 6. 28, 21

Answers

Answer:

627% 6.285 6. 28 21 6 3

Step-by-step explanation:

Um.. I did it from greatest to least but here it is!

There are 20 sweets in a box.
x of the sweets are red.
The rest of the sweets are yellow.
Tom takes at random a sweet from the box.
Write down an expression, in terms of x, for the probability that Tom takes a yellow sweet.

Answers

Answer:

[tex]probability \: of \: getting \: red \: sweets = \frac{x}{20} \\ probability \: of \: getting \: yellow \: sweets \: = \frac{(20 - x)}{20} [/tex]

The probability of getting red sweets is x/20 and the probability of getting yellow sweet is (20-x)/20.

What is a probability?

Probability is about estimating or calculating how likely or 'probable' something is to happen.

Given that x is the number of red sweets.

The total number of sweets is 20.

The number of yellow sweets = 20 - x.

The probability of getting a red sweet is given by

P(x) = x/20

The probability of getting a yellow sweet is given by

P(20-x) = (20-x)/20

Hence, x/20 is the probability of getting a red sweet and (20-x)/20 is the probability of getting yellow sweet.

To learn more about probability, use the link given below:

https://brainly.com/question/11234923

#SPJ2

The same price of every item in a store is 85% of it usual price. ( please explain your answer because I don’t understand how to solve this)

The usual price of a backpack is $30, what is its sale price?

Answers

85% is 0.85 decimals
85 percent of 30
30 * 0.85 = 25.50
30-25.50 = 4.50
Solution: after sale, it is $4.50

What is the area of the building below? *

Answers

you’ll need to split the shape into 2 rectangles then find the area of both the rectangles and add them together.
30*10=300
20*10=200
area=500

Enter numbers into the table so that the paired values are in a proportional relationship. x 2 6 8 20 y 3 4 6 10

Answers

Answer: X 2,6,8,12,20

Y 1,3,4,6,10

Step-by-step explanation:

Divided by 2 too get the answers  or add 10 + 10 you’ll get the answer

Answer:

Y 1,3,4,6,10

Step-by-step explanation:

took the test c:

Which company has the highest charge per attendee?

Answers

Step-by-step explanation:

As an event planner, you may have noticed the steadily increasing online event registration fees. Moreover, many people are anticipating the next economic crisis is coming soon. It may trigger you to think about looking for a new registration system that’s affordable yet still flexible and easy to use.

So we are here to help you search for the best option for your event registration. Start by going through our checklist so you can understand what to look for. Then, check the pricing comparisons of the top 7 online event registration software options out there, so you can browse them side by side to find the best one for you. Save time (and money!) and find the perfect online event registration for your next event.

How can you best describe how to determine if a sequence is arithmetic or geometric?

Answers

Maybe finding out through calculator

Which expression is equivalent to 2x^2−18?

Answers

Answer:

2x² - 18 = 2(x² - 9) = 2(x - 3)(x + 3)

Step-by-step explanation:

What is 1+1 * the square root of 199 and 198

Answers

Answer:2.14.07

Step-by-step explanation:

6. Choose the correct common fraction.
1/2
2/3
0.1
0.5

Answers

Answer:

1/2 most likely everyone says "half" instead on "point five"

Answer:

Step-by-step explanation:

The answer is 2/3 because it can not be represented in any other way

Tawanna is asked to find the GCF of each term in the expression 2 a b + 8 b. Her work is shown below.

Factors of 2ab: 1, 2, a, and b
Factors of 8b: 1, 2, 4, 8, and b
GCF: (1) (1) (2) (2) (b) (b)

Which best describes the error in Tawanna’s solution?
Tawanna factored one or both pieces of the expression incorrectly.
Tawanna did not include each factor in the GCF.
Tawanna should have used each common factor once.
Tawanna included only one of the variables in her solution.
Mark this and return

Answers

Answer:

Tawanna should have used each common factor once.

Step-by-step explanation:

Tawanna is asked to find the GCF of each term in the expression 2 a b + 8 b.

Factors of 2ab: 1, 2, a, and b

Factors of 8b: 1, 2, 4, 8, and b

GCF: (1) (1) (2) (2) (b) (b)

GCF = Greatest common factor

She has calculated the GCF incorrectly as she should use each common factor once only. But she has taken all the common factors twice which is wrong.

Hence, the error in Tawanna’s solution is that "Tawanna should have used each common factor once.". Hence, the correct option is (c).

Answer:

C - Tawanna should have used each common factor once.

Step-by-step explanation:

Just gotit right on edge 2021! :) have a good day!

the vertices of xyz are x (1,-4)

Answers

Answer:

5. The vertices of ΔX'Y'Z' are (-3, -7), (-6, -4), (-1, -2)

6. The vertices of ΔX'Y'Z' are (6, -7), (3, -4), (8, -2)

Step-by-step explanation:

If the point (x, y) translated by T → (h, k), then its image is (x + h, y + k)

#5

In ΔXYZ

∵ X = (1, -4), Y = (-2, -1), Z = (3, 1)

∵ T → (-4, -3)

h = -4 and k = -3

→ Use the rule above to find the image of the vertices of the Δ

∵ X' = (1 + -4, -4 + -3)

X' = (-3, -7)

∵ Y' = (-2 + -4, -1 + -3)

Y' = (-6, -4)

∵ Z' = (3 + -4, 1 + -3)

Z' = (-1, -2)

The vertices of ΔX'Y'Z' are (-3, -7), (-6, -4), (-1, -2)

#6

In ΔXYZ

∵ X = (1, -4), Y = (-2, -1), Z = (3, 1)

∵ T → (5, -3)

h = 5 and k = -3

→ Use the rule above to find the image of the vertices of the Δ

∵ X' = (1 + 5, -4 + -3)

X' = (6, -7)

∵ Y' = (-2 + 5, -1 + -3)

Y' = (3, -4)

∵ Z' = (3 + 5, 1 + -3)

Z' = (8, -2)

The vertices of ΔX'Y'Z' are (6, -7), (3, -4), (8, -2)

While shopping for clothes, Jocelyn spend $80 less than three times what Tracy spent. Jocelyn spend $10. Right and solve an equation to find out how much Tracy spent. Let X represent how much Tracy spent.

Answers

Tracy = x
Jocelyn = 3x - 80
When y = 10
y = 3x - 80
10 = 3x - 80
90 = 3x, x = 30
Solution: Tracy spent $30
If Daniel spent x
x dollars, then Tracy spent 3x−8
3x−8 dollars. Since Tracy spent $10, we can write the equation:

3x−8=10
3x−8=10

Solve for x
x. Add 8 to both sides:

3x=18
3x=18

Divide both sides by 3:

x=6
x=6

So, Daniel spent $6.

Simplify 3 1/4 ÷ 1 1/2 / 2 1/2

Answers

Answer:

65/12

Step-by-step explanation:

13/4÷3/2×2/5=13/4÷3/5= 13/4×5/3=65/12

9. Determine which of the following sequences is a geometric sequence. Check all that apply.
3,9, 27, 81, ...
100, 90, 80, 70, ...
5, 10, 20, 40, ...
2, 10, 18, 26,...
625, 125, 25, 5, ...
-2, 6, -18, 54, ...

Answers

Step-by-step explanation:

first geometric sequence

3^1, 3^2 ,3^3, 3^4,......

3, 9, 27, 81.......

second

5^1, 5^2, 5^3, 5^4,........

5, 25, 125, 625,........

third

2, 10, 18, 26,.....

which has the difference of 8

fourth

100, 90, 80, 70,......

I dont know why it says im in high school im in middle school. But anyways can someone please explain how to get percentage.

Answers

Answer:

Step-by-step explanation:

To change a decimal into a percent you multiply by 100.

If there is a fraction that you need to convert into a percent. Completely divide the fraction. 4/5 = 0.8 then multiply by 100 you get 80%. This means that 4 is 80% of 5

Answer:

how to get a percentage from a decimal is when you take the decimal point and move it twice to the left

Step-by-step explanation:

for example

.07 = 7%

does that make sense?

Plz help meeeee plz

Answers

Answer:

Less than

Step-by-step explanation:

Its less than because the angle of LS is 98 while MS is 95, so LS is longer

What is the average speed of a car that traveled 200.0 kilometers in 5.5 hours? km/hr​

Answers

Answer:

the average speed of the car is 40 km in 1 hour

Step-by-step explanation:

PLEASE HELP IM BEGGING!!!

Answers

Answer:

-15

Step-by-step explanation:

Find the nth term of this quadratic sequence
4,9, 16, 25, 36,​

Answers

Answer:

[tex]a_{n}[/tex] = (n + 1)²

Step-by-step explanation:

The terms are square numbers with each term shifted to the right by 1

That is 1, 4, 9, 16, 25, 36, .....

Thus to obtain 4 in the first position, then

n = 1 → (1 + 1)² = 2² = 4

To obtain any term add 1 to its position in the sequence, that is

[tex]a_{n}[/tex] = (n + 1)²

can someone help please

Answers

Answer:

1.6

Step-by-step explanation:

PLEASE HELP!! BEING TIMED!! WILL GIVE BRAINLY

Answers

Answer:

Angle 6=57     angle 5= 123

Step-by-step explanation:

angle 6 is congruent to angle 3, which is 57 degrees

To find angle 5, we look at both angles 5 and 6's lines. The lines show us that both angles equal to 180, so we subtract 57 from it.

Find the third side in simplest radical form:

Answers

Answer:

9 1/2

Step-by-step explanation:

i think think this may be the anwser

Han wants to buy a $30 ticket to the game but the pre-order tickets are sold out he knows that there will be more tickets sold the day of the game with a mark up of 200% how much should han accept To pay for the tickets if he buys it the day of the game

Answers

Answer:

Solution in photo

Step-by-step explanation:

Ol
© The ratio of boys to girls in a class is 5:4. There are 36 students in the class. How many
students are girls?​

Answers

Answer:

16

Step-by-step explanation:

[tex]no \: of \: girls = \frac{4}{5 + 4} \times 36 \\ \\ = \frac{4}{9} \times 36 \\ \\ = 4 \times 4 \\ \\ = 16[/tex]

Answer:

Step-by-step explanation:

let the ratio of boys and girls be 5x and 4x

According to question,

5x+4x = 36

or, 9x= 36

x=4

number of boys = 5x

                            = 5·4= 20

number of girls = 4x

                         = 4.4=16

therefore the total no of boys is 20 ans girls is 16

What are 3 different ways to write a ratio?

Answers

Answer:

Cross Multiplication.

Proportion.

½ =

/

proportionate. 1:2 = 4:8. 1 to 2 = 4 to 8.

Step-by-step explanation:

With the word to
Ex: 3 to 4

As a fraction
Ex: 1/2

And with a colon
Ex: 3 : 4

helpppppppppppppppppppppppppppp

Answers

Answer:

B  y = 1.1x^2 +4.2x - 4.9

Step-by-step explanation:

For this one, try plugging in 1.

y = 1.1(1)^2 + 4.2(1) - 4.9

1.1 + 4.2 - 4.9

1.1 + 4.2 = 5.3

5.3 - 4.9 = 0.4

0.4 is the closest for (1, 0.3)

So the correct answer is B. All the others don't make sense and are not close enough.

PLZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP SHOW YOUR WORK

Answers

Answer:

55

13(3/4)=55/4

55/4/4=55

Other Questions
#2: Given the geometric sequence 200, 100, 50, 25... (This one is tricky)Write the explicit formula. Determine the 15th term of the sequence? Who catches Elisabeth and proctor argument in the Crucible?? find the earnings rounded to the nearest cent sales: $984 commission: 10% explain how bacteria can be genetically engineered to produce a human protein The surface area of a cube is represented by the expression below, where s is the side length of the cube. Find the surface area of a cube-shaped jewelry gift box with a side length of 9 centimeters. how do you solve this equation k=4L-7 The Declaration of Independence argues that the American people shouldcontrol their own government. What Enlightenment idea does this argumentexpress?A. Natural rightsB. The social contractC. Popular sovereigntyD. Trial by juty What does a sound waves frequency tell you?a - the number of vibrations per second an object is makingb - the loudness or softness of the sound from an objectc - the amplitude of the sound waved - the type of medium in which the sound is traveling Which scenario best demonstrates the role of lobbying in government? A. Political ads influence voters in a local election. B. A citizens' group files a lawsuit. C. A political action committee supports a presidential candidate. D. Businesses influence the passage of favorable legislation. chuck was chopping wood.when he was done he had 25 kg of firewood what was most likely the weight of the wood before he chopped it 8. What effect did the answer to part A have on the war between Geronimo and the United StatesGovernment?A. It ignited his interest in peace with the United States GovernmentB. It reignited his desire for conflict with the United StatesC. It caused the United States government to seek peace with the Chiracahua peopleD. It caused a split within the Chiracahua people PLEASE HELP IM BEGGING REWARD IS 70 POINTS!!!!! Ms. Buback is competing in a race in which she both runs and rides a bike. She runs 5 kilometers in 0.5 hours and rides her bike 20 kilometers in 0.8 hours. At the rate given, how many kilometers can she bike in one hour? Which of the following statements are true of 12 and -12?They are the same distance from zero.They are a zero pair.They are equivalent.They are opposites. Which of the following describes the activity of the sympathetic nervous system?a. It mobilizes when the body experiences extreme situations.b. It decreases sweat gland activity.c. It normalizes digestive activity.d. It conserves energy.e. It decreases demands on the cardiovascular system. Parvati is a single taxpayer. Her AGI is $74,098, she does not own a home, and she contributed the following charitable donations to qualified charitable organizations: 04/01/20 $250 04/16/20 $50 05/20/20 $350 What amount can she deduct on her 2020 tax return? a) $0 b) $650 c) $350 d) $300 it gathers macules and make them more complex. it also stores them or send them into the cytosol or out of the cell. this organelle also possesses the proteins produced by the endoplasmic reticulum and ribosomes Word that means fighting with another group inside your own country This answer is B right? :) holidays in islam and in buddhism Steam Workshop Downloader