The difference between a number and its square is 42 find the number

Answers

Answer 1

Answer:

x = 7 or -6

Step-by-step explanation:

Let a number be x.

Its square = x²

x - x² = 42

-x² + x - 42 = 0

-(x² - x + 42) = 0

x² - x + 42 = 0

(x - 7)(x + 6) = 0

x - 7 = 0 or x + 6 = 0

x = 7 or x = -6


Related Questions

In an oblique drawing, which surface is shown in its true size and shape and is parallel to the horizon?

top
side
bottom
front

Answers

In an oblique drawing, the surface that is shown in its true size and shape and is parallel to the horizon is the front.

What is the drawing about?

The Position of an object in a drawing is known to be parallel to the plane of projection and the circular shape is true in front plane of the oblique view.

The measurements on the front and oblique faces are known to have all its lengths to be true.

Note also that A pictorial drawing that has the front view of an object parallel to the projection plane and shown its true size and shape is known to be Oblique Drawing.

Therefore, In an oblique drawing, the surface that is shown in its true size and shape and is parallel to the horizon is the front and as such, option d is correct.

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What is the slope of the line that contains the points (-2, 2) and (3, 4)?
A -2/5
B 2/5
C 5/2
D -5/2

Answers

Answer:

[tex]B) ~\dfrac 25[/tex]

Step-by-step explanation:

[tex]\text{Given that,} ~ (x_1,y_1) = (-2,2)~ \text{and}~ (x_2 ,y_2) = (3,4)\\\\\text{Slope},~ m = \dfrac{y_2 - y_1}{x_2 -x_1}\\\\\\~~~~~~~~~~~~~=\dfrac{4-2}{3+2}\\\\\\~~~~~~~~~~~~~=\dfrac 25[/tex]

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the slope of the line that contains the points (-2, 2) and (3, 4).

[tex]\triangle~\fbox{\bf{KEY:}}[/tex]

Use the slope formula, which is given below:

[tex]\star~\mathrm{\cfrac{y2-y1}{x2-x1}}[/tex]

Where

y2 and y1 are y-coordinates

x2 and x1 are x-coordinates

Substitute the values:

[tex]\star~\mathrm{\cfrac{4-2}{3-(-2)}}[/tex]

Simplify!

[tex]\star~\mathrm{\cfrac{2}{5}}[/tex]

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

Please help! This is reflections in geometry! Thank you.

Answers

If these coordinates reflected over y = -1, the resulting coordinate will be:

P = (-4, -6)

Q = (-2,-8)

R = (1, -4)

Reflection of coordinates

A reflected coordinates are mirror images of each other. From the given diagram, the coordinate points are;

P = (-4, -3)

Q = (-2,-4)

R = (1, -2)

If these coordinates reflected over y = -1, the resulting coordinate will be:

P = (-4, -6)

Q = (-2,-8)

R = (1, -4)

The y coordinates are multiplied by a factor of 2

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Follow the directions to solve the system of equations by elimination.


8x + 7y = 39


4x – 14y = –68


Multiply the first equation to enable the elimination of the y-term.

Add the equations to eliminate the y-terms.

Solve the new equation for the x-value.

Substitute the x-value back into either original equation to find the y-value.

Check the solution.

The solution to the system of equations is?

Answers

Answer:

X= 1/2 Y= 5

Step-by-step explanation:

8x+7y=39-------------(1)--------×2

4x-14y= -68-----------(2)-------×1

16X + 14Y = 78--------(3)

4X- 14Y = -68----------(4)

Addy equation (4) and (3)

20X = 10

dividing bothsides by 20

20X/20= 10/20

X = 1/2

substitute the value of X into equation (1)

8X+7Y = 39

8(1/2)+7Y= 39

4+7Y = 39

7Y = 39-4

7Y = 35

dividing bothsides 7

7Y= 35/7

Y = 5

the table below shows the results from a spinner experiment find the probability of spinning a number greater than 2

Answers

Answer:

29/48

Step-by-step explanation:

Total number of spins: 8 + 11 + 17 + 12 = 48

Total number of spins greater than 2: 17 + 12 = 29

p(greater than 2) = 29/48

solve the equation
(x+1)(x+8)=0

Answers

Answer:

x²+9x+8

Step-by-step explanation:

(x)(x+8)+(1)(x+8)

x²+8x + ×+8

x²+9x+8

Hey there!

Answer :

x = -1 or x = -8 ✅

Explanation :

To solve this equation, you have to use the zero product property.

Ifa product of factors is zero, then at least one of its factors is zero.

Which means that either x + 1 = 0 or x + 8 = 0

⇒ x + 1 = 0

Subtract 1 from both sides :

⇒ x + 1 - 1 = 0 - 1

x = -1

OR

⇒x + 8 = 0

Subtract 8 from both sides :

⇒x + 8 - 8 = 0 - 8

x = -8

Therefore, x = -1 or x = -8.

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Find the value of h(-7) for the function below.

h(x) = 5.7 −19x

A.
0.67
B.
-138.7
C.
-127.3
D.
138.7

Answers

The input value of the function h(-7) for h(x) = 5.7 - 19x is -26.6.

How to find the input value of a Function?

We are given the function;

h(x) = 5.7 - 19x

Thus;

h(-7) = 5.7 - 19(1.7)

h(-7) = 5.7 - 32.3

h(-7) = -26.6

Thus, we conclude that the input value of the function h(-7) is -26.6.

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What is the velocity (speed) of a car (in kilometres per hour) if it goes 40 kilometres in 35 minutes?

A: 70.27 km/hr
B: 67.52 km/hr
C: 68.57 km/hour
D: 69.88 km/hr

Answers

speed = distance / time


35 minutes / 60 minutes = 0.583 hours


speed = 49 km / 0.583 hours

Speed = 68.57 km/hr


answer: C. 68.57 km/hour

Jessica has a penny and a nickel. She flipped both coins. What are the chances that both coins land on tails?

Answers

Answer:

Step-by-step explanation:

Here is a list of possible outcomes.

Penny      nickel

Heads      heads

Heads       tails

tails            Heads

tails            tails

Since there are four ways the two coins can land, the chances of getting tails - tails is 1 chance in 4.

Answer: The answer is C 1/4

If anyone know how to solve this please help!!
this my last slide to finish
solve this please!!

Answers

Answer:

Area=18ft^3 Surface Area=44ft^2

Step-by-step explanation:

The formula for area of a rectangular prism is A=lwh. So you just plus that in

Answer:

Volume = 18 cubic feet
Surface Area = 44 square feet
Double width = Double the space

Step-by-step explanation:

Please see attached explanations.

Surface area is the area (one side multiplied by another) of every side of the storage box, added together.
I have labeled each unique pair of sides as a, b, and c. That is top and bottom, left and right side, and front and back side.

Volume is the length multiplied by the width multiplied by the height.

By doubling the width, you are doubling the size of the box in that given direction. You can prove this mathematically by making the width twice of what it was and finding volume again.

student can work no more than 23 hours
per week.
2. The tutoring center requires that each
tutor spend at least two hours per week
tutoring.
3. The tutoring center requires that each
tutor spend no more than seven hours pers
week tutoring.

Answers

Answer:

See below ~

Step-by-step explanation:

We need to represent the situations as inequalities.

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

Students can work no more than 23 hours per week

⇒ Let the hours per week be x

⇒ 'no more than' refers to less than or equal to (≤)

x ≤ 23

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

Tutors are required to spend at least 2 hours per week

⇒ At least refers to greater than or equal to (≥)

x ≥ 2

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

Tutors should spend no more than 7 hours per week

⇒ As mentioned before, no more than refers to less than or equal to (≤)

x ≤ 7

ae need inequalities

#1

No more than means maximum

h≤23

#2

At least means minimum

h≥2

#3

No more than is maximum

h≤7

The ocean was a magnet pulling me closer to it.
Group of answer choices

1:hyperbole

2:simile

3:metaphor

Answers

Answer:

Metaphor

Step-by-step explanation:

This is a comparison between the ocean and a magnet, but it did not use like or as, so it is a metaphor.

Answer: The correct answer is 3. metaphor.

Step-by-step explanation:

A hyperbole is an exagerration.

A simile is a comparison used with like or as.

A metaphor is a comparison used without like or as.

Therefore, "The ocean was a magnet pulling me closer to it." includes a metaphor.

Pls helpDetermine the area, in square units, of rectangle ABCD.

Enter the area of rectangle ABCD.

Answers

The area of the rectangle, as shown in the image given is calculated as: 48 square units.

What is the Area of a Rectangle?

The area of a rectangle = length × width.

Find the length and width of the rectangle:

Length (BC) = 8 unitsWidth (AB) = 6 units

Area of rectangle ABCD = 8 × 6 = 48 square units.

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I am thinking of a secret number. 12 is a factor of my number. Suggest three other factors of my number.​

Answers

Answer:

Let us assume your secret number is 12, and we can simply write down ALL the factors of 12:

1, 12

2, 6

3, 4

the sum of interior angle of a regular Pentagon in 540 degree find the interior angle

Answers

Answer:

108°

Step-by-step explanation:

A regular pentagon has five interior angles of the same measure.

Then

An interior angle has a  measure of :

540/5 = 108°

Hello, the answer should be [tex]108^o[/tex].

The interior angle of any shape formula, if the geometric shape is regular and the sum of interior angle is known, can be written as;

[tex]Interior=\frac{Sum(angles)}{Side}[/tex]

Regular pentagon has 5 sides.

The sum of interior angles of regular pentagon is [tex]540^o[/tex].

[tex]Result=\frac{540^o}{5}=108^o[/tex]

Good luck! If you have any question(s), then feel free to ask in comments.

Question 4 of 25
Which of these could be the graph of F(x) = In x + 1?
51
51
5.
H
5
-5
-5-
B
A
5
-5
D
5

Answers

Answer:

fx 8

Step-by-step explanation:

ao the answer ia fx 8 do times

What is the approximate length of AB¯¯¯¯¯¯¯¯?

Answers

Answer

9.2 units

Step-by-step explanation:

A(-2,-2) and B(4,4) then the length is given by the distance formula

length = [tex]\sqrt{(4-(-2))^{2}+(4-(-3))^{2} }[/tex] units

           = [tex]\sqrt{6^{2}+7^{2} }[/tex] units

           = [tex]\sqrt{85\\[/tex] units

           = 9.2 units          

Answer:

AB ≈ 9.2 units

Step-by-step explanation:

calculate the length using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = A (- 2, - 3 ) and (x₂, y₂ ) = B (4, 4 )

AB = [tex]\sqrt{(4-(-2))^2+(4-(-3))^2}[/tex]

     = [tex]\sqrt{(4+2)^2+(4+3)^2}[/tex]

     = [tex]\sqrt{6^2+7^2}[/tex]

     = [tex]\sqrt{36+49}[/tex]

     = [tex]\sqrt{85}[/tex]

     ≈ 9.2 units ( to the nearest tenth )

help marking brainliest

Answers

Answer:

9-pack

Step-by-step explanation:

Price per roll for 4-pack = Pack price / Number of rolls in pack

= 2.25 / 4

= £0.56 (rounded off to nearest cent)

Price per roll for 9-pack = Pack price / Number of rolls in pack

= 4.50 / 9

= £0.50

From here, we can see the 9-pack is of better value.

solve for K
7K-6
2K+14

Answers

Vertically opposite angles are the same meaning u have to do:

7k-6=2k+14

U have to solve for k.

7k-6=2k+14 - using this equation

Minus 2k on both sides

5k-6=14

Add 6 on both sides

5k=20
Divide 5 on both sides

K=4 the answer is 4.

To double check substitute it into 7k-6 and 2k+14. They should be same values

7(4)-6=28-6=22
2(4)+14=8+14=22

So 4 is correct because when u substitute back into the equation it gives you the same value.


Pls give me brainlist it took me a long time.

Automobile insurance with the split limits 200/300/400 will cover up to how much in bodily injury per person?

Answers

Automobile insurance with the split limits 200/300/400 will cover up to $200,000 in bodily injury per person.

What is Insurance?

This is a form of protection from financial loss and is used as a means of risk management.

$200,000 medical bodily injury coverage per person, $300,000 bodily injury coverage for the entire accident and $400,000 total property damage limits.

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What is the approximate area

Answers

Answer:

2827.43in²

Step-by-step explanation:

formula for area of a circle is r²π with r being the radius (30 in this case)

we can plug in 30 for r to solve for the area

30²π

900π

2827.43

that is the answer

- kan academy advance

How many times larger than (6 - 4) is (6 - 4) × 5?

Answers

Answer:

5 times bigger

Step-by-step explanation:

(6-4) = 2

(6-4) x 5 = 10

whitch of the following is closest to 8 62 61 65 66

Answers

Answer:

If the question is which is closest to 8, the answer is 61

Step-by-step explanation:

The graph of y=x is shifted up 2 units and 3 units to the left. Which is the equation of the translated function?

Answers

Check the picture below.

[tex]y = x\implies y = \stackrel{A}{1}(\stackrel{B}{1}x+\stackrel{C}{0})+\stackrel{D}{0} \\\\\\ \begin{cases} \stackrel{\textit{2 units up}}{D=+2}\\\\ \stackrel{\textit{3 units left}}{C=+3}\\ B=1 \end{cases}\qquad \implies y = \stackrel{A}{1}(\stackrel{B}{1}x\stackrel{C}{+3})\stackrel{D}{+2}\qquad \implies y=(x+3)+2[/tex]

The following box plot shows the number of years during which 24 schools have participated in an interschool swimming meet:


At least how many schools have participated for 1 year or less? (5 points)


6 schools

8 schools

12 schools

14 schools

Answers

The number of schools have participated for 1 year or less are below the first quartile, which is: A. 6 schools.

What is the First Quartile in A Box Plot?

The first quartile marks the 25th data point of a data distribution (1/4) and is represented at the beginning of the edge of the rectangular box in a box plot.

Using the box plot given, 1 year is the first quartile mark on the box plot. So, the schools that participated for 1 year or less is 1/4 of the total schools. That is:

1/4 × 24 = 6 schools.

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yx^-4*(x^2y^4)^-2

Simplify,
Please show work
I’ll give Brainliest

Answers

the answer is 1/x^8y^7

What is the measure of angle ACB
What is the measure of the arc from A to B not passing through C?

Answers

Answer:

Angle ACB: 28
Arc AB: 56

Explanation:
- To find AB, the angle of BOA is a central angle. And its according arc is AB. The angle is always the same as the arc as long if its a central angle.

- Angle ACB is an inscribed angle. Its according arc is AB. Whenever its an inscribed angle, its half of its arc.
56 / 2 = 28

Find the median of the following data : 9, 15, 17, 18,6, 20, 8, 5, 18, 18, 10, 5, 14, 12, 10, 7

A. 15
B. 18
C. 12
D. 11

Answers

Answer:

The median is 11.

Explanation:

Add the middle values to calculate the mean, then divide this by 2. That gives you 11.

Median is 11.

The median is what is in the middle of a data set.

Once you put the numbers in the data set in order you with see that there are 2 numbers in the middle.

When this happens all you have to do is find out what’s in the middle of those two numbers.

The number in between 10 and 12 is 11.

Therefore the answer is D.

12345678910111213141516

Answers

Step-by-step explanation:

oh, come on. you can just use common sense.

a local minimum is a point where the curve goes down to, and then turns around and starts to go up again. that point in the middle, where it turns around and does not go down any further, is the minimum.

for the maximum the same thing applies, just in the other direction (the curve goes up and turns around to go back down again).

a)

the local minimum values (y) are

-2, -1

b)

the values of x where it had these minimum values are

-1, +3

Ariel has a salary of $100,000 in the year 2003 and got a raise of 3.32 % every year. How much money in total will Ariel earn up through the year 2007, to the nearest dollar?

Answers

She would make around $403.315 total through the year 2007.
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let A={1,2,3,4,5} and B={4,5,6} Let R is relation from A to B defined by R={(a,b):a+b B} Then Find 1. R 2. Domain (R) 3. Range (R) 4.Inverse of R x-1=4I need the answer for this question solve 8 = 2^x + 4.A. x=-4B. x=-1C. x=0D. x=7 Solve for x in the equation x squared minus 12 x + 59 = 0. Qu monumentos forman parte del patrimonio artstico que procede del periodo novohispanico This rectangle is composed of two parts, labeled 1 and 2.52 in3 in132 in2What are the areas of each smaller rectangle and the large rectangle?Drag each tile to the correct location on the image. Not all tiles will be used.The area of part 1 issquare inches.The area of part 2 is:square inches.The area of the entire rectangle is:square inches. What is the answer? please 3b - c +5 if c= - 4, b=2. What is the product?StartFraction 2 y Over y minus 3 EndFraction divided by StartFraction 4 y minus 12 Over 2 y + 6 EndFractionTwo-thirdsTen-ninthsStartFraction 4 y Over y minus 3 EndFractionStartFraction 4 y Over y + 3 EndFraction What effect does this language have on the reader? How do the desciptions make you feel? The measures of the angles of a triangle are in the extended ratio 4:5:6. Find the measure of the largest angle in thetriangle.A 60B. 72C. 120D. 132 Type the correct answer in the box. Use numerals instead of words.What is the length of the diagonal shown in the rectangular prism? Round your answer to the nearest tenth. The graph shows the functions f(x), p(x), and g(x): 6.98 Ax) 1 p(x) 8(xx) US -9.06 10.94 -6.35 Courtesy of Texas Instruments Part A: What is the solution to the pair of equations represented by p(x) and f(x)? (3 points) Part B: Write any two solutions for f(x). (3 points) Part C: What is the solution to the equation p(x) = g(x)? Justify your answer. Hypothesis: In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.Moon One contains the elementsElement 1Element 2Moon Two contains the elementsElement 1Element 2 Given the pattern rule Tn=n2-1what are the first 3 terms of the pattern A teacher wants to buy electronic tablets for her classroom. If she buys refurbished tablets, she can get them for a chapter price, but she is worried that refurbished tablets may not work properly. Which type of risk does the given scenario exemplify Wich inequality represents the phrase a number b is atleast 16? The two tables show the number of copies of albums x, y, and z sold in outlets a, b, c, and d of a company. which outlet sold the greatest number of copies of album x in july and august? The carbon cycle involves an exchange of carbon between _______.a.the geosphere and atmosphereb.the atmosphere and hydrospherec.the geosphere and hydrosphered.the geosphere, hydrosphere, and atmosphere Ravi brushes his teeth 18 times a day. Each time, he uses exactly 83 strokes up and 83 strokes down. After he eats, he must brush twice with two different brands of toothpaste. Ravi suffers from