Solve the following equation by factoring: x^2+ x– 42 = 0

Answers

Answer 1

Answer:

x=6,x=-7

Step-by-step explanation:

x^2+x-42=0

x^2-6x+7x-42=0

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

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


Related Questions

What is 22.6% of 65 ​

Answers

First convert the percentage to decimal

22.6/100 = 0.226

0.226 x 65 = 14.69

Answer:

14.69

Step-by-step explanation:

22.6% = 0.226

65 × 0.226 = 14.69

There are 36 boys for every 54 girls

Answers

Answer:

2 : 3 is ur ratio

Step-by-step explanation:

Answer:

2 : 3 is ur ratio

Step-by-step explanation:

Which equation represents the line that is perpendicular to and passes through (-12,6)?.

Answers

The equation that represents the line that is perpendicular is

3y + 5x = -42

The standard equation of a line in point-slope form is expressed as:

[tex]y-y_1=m(x-x_1)[/tex]

m is the slope of the lne(x1, y1) is any point on the line.

Given the equation y = 3/2x + 1, the slope of the line is 3/5

The slope of the line perpendicular is -5/3

Substitute the point (-12, 6) and the slope m = -5/3 into the equation above to have:

[tex]y-6=-5/3(x-(-12))\\3(y-6)=-5(x+12)\\3y-18=-5x-60\\3y = -5x - 60 + 18\\3y + 5x = -42\\[/tex]

Hence the equation that represents the line that is perpendicular is

3y + 5x = -42

Learn more on equation of a line here:https://brainly.com/question/19417700

Help help help on marhswatch please help!!

Answers

7x-35<2x-10 distribut it

7x-2x<-10+35 collect like them

5x<25 divide both side by 5

x<5

a desk costs $145. what is the total cost of 23 desks?

Answers

Answer:

145*23=3335$

by multiplying cost by sum of desk

Please someone help, I want to know if I’m correct

Answers

Answer:

Yes youre correct

Step-by-step explanation:

A car moving at a constant speed passed a timing device at t = 0. After 8 seconds, the car has
traveled 648 ft. Write a linear function rule to model the distance in feet d the car has traveled any
number of seconds t after passing the timing device.
The linear function rule is d =

Answers

Answer:answer d

Step-by-step explanation:

i just did the test

What is the simplified form of the following expression? 5 StartRoot 8 EndRoot minus StartRoot 18 EndRoot minus 2 StartRoot 2 EndRoot 2 StartRoot 2 EndRoot 5 StartRoot 2 EndRoot 9 StartRoot 2 EndRoot 15 StartRoot 2 EndRoot.

Answers

The simplified form of the given expression is [tex]5\sqrt{2}[/tex].

Given expression,

[tex]5\sqrt{8} - \sqrt{18} - 2 \sqrt{2}[/tex].

We have to simplify the above expression.

So, [tex]5\sqrt{8} - \sqrt{18} - 2 \sqrt{2}\\[/tex]

First solve for the square root,

[tex]5\sqrt{2\times2\times2} -\sqrt{3\times3\times2} -2\sqrt{2} \\\\10\sqrt{2} -3\sqrt{2}-2\sqrt{2} \\[/tex]

[tex]7\sqrt{2} -2\sqrt{2}[/tex]

[tex]5\sqrt{2}[/tex]

Hence the simplified form of the given expression is [tex]5\sqrt{2}[/tex].

For more details follow the link:

https://brainly.com/question/2719671


Does anyone get this??

Answers

Answer:

the answer is 12m

Step-by-step explanation:

u know the side c and side B.

C=15m but u have to square it which is 225

B=9m but u have to square it which is 81. then subtract 82 from 225.which will give u 144 which is a perfect square route of 12

What value of X is always
an outlier?
A) X> Q1 + 1.5 IQR
B) X>03 - 1.5 IQR
C)X D) X > 1.5 IQR - Q1
E) X > Q3 +1.5 IQR

Answers

Answer:

Answer B

Step-by-step explanation:

Because  (IQR) by 1.5 (a constant used to discern outliers). Add 1.5 x (IQR) to the third quartile. Any number greater than this is a suspected outlier. Subtract 1.5 x (IQR) from the first quartile.

which of the points does not fall on the same line as the other three points? (-4,4) (0,2) (2,1) (4,-1)​

Answers

Answer:

Given (-4,4),(0,2),(2,1),(4,-1)

Only any two points are on the same line.

Step-by-step explanation:

You could do a lot of calculations, write the equations for the points in the line. These would be very good. But, you could also just look at the points on a graph. See image.

Repost if there are different points in the original problem.

What is (f+g) (x)
f(x) = -3x+3
g(x)=-4x as a polynomial or rational function in simplest form?

Answers

Do polynomial like this:

-3x+3-4x = -7x +3

Final answer :

-7x+3

Which expression represents 11 less than a number, n?

Answers

Answer:

n-11

Step-by-step explanation:

Boris made $306 for 18 hours of work. At the same rate, how many hours would he have to work to make $119?

Answers

in order to make 119$ he would need to work 7 hours

Answer:

[tex]18 = 306 \\ x = 119 \\ \\ 306x = 2142 \\ x = \frac{2142 }{306 } \\ x = 7[/tex]

NEED HELP ASAP…..plz help

Answers

I’m pretty sure the answer is D. I’m sorry if I’m wrong

The answer is B) y = 4x

Explanation: If you substitute each number in the x column for the variable x, and then multiple that number by 4, you'll get the number in the y column to the right.

For example:

y = 4x --> y = 4 (2) --> y = 8

I hope this helped. :)

What is the factored form of n^3+512 (please answer) picture provided

Answers

[tex] {n}^{3} + 512 \\ = {(n)}^{3} + {(8)}^{3} \\ by \: using \: {a}^{3} + {b}^{3} = (a + b)( {a}^{2} - ab + {b}^{2}) we \: \: \: get \\ = (n + 8)( {(n)}^{2} - n \times 8 + {(8)}^{2} ) \\ = (n + 8)( {n}^{2} - 8n + 64)[/tex]

Hope you could get an idea from here.

Doubt clarification - use comment section.

What is 4x+3x? Write solution.

Answers

Answer:

7x

Step-by-step explanation:

4x ( linear function) + 3x ( linear function) = 7x

[tex]\huge\boxed{Hello!:)}[/tex]

Combine like terms:

4x+3x=7x

Remember, we can add terms with the same variable together, but we can't add terms with different variables.

[tex]\huge\boxed{Hence,\:the\:answer\:is\:7x.}[/tex]

[tex]\huge\underline{Hope\:it\:helps!}[/tex]

[tex]\boxed{DreamyGal\:here\:to\:help!:)}[/tex]

i just need to know if this is correct and if i need to fix anything

Answers

Answer:

its correct

Step-by-step explanation:

please give me the answer (click on file) ​

Answers

Answer:

x = 122

Step-by-step explanation:

22 - (+12) - (-4) + (-6)​

Answers

Answer:

8

Step-by-step explanation:

+- = --- = ++- = -++ = +

22-12+4-6 = 8

22 - (+12) - (-4) + (-6) = 22 - 12 + 4 - 6 = 8

ANSWER: 8
Ok done. Thank to me :>

Solve the inequality.


-7x - 4 > 17

Answers

Answer:x<-3

Step-by-step explanation:

Answer:

x < -3

Step-by-step explanation:

[tex]-7x-4>17\\\\-7x-4+4>17+4\\\\-7x>21\\\\\frac{-7x}{-7}>\frac{21}{-7}\\\\x<-3[/tex]

Write a linear function f with f(-2) = 6 and f(0) = -4
f(x) =

Answers

Answer:

y = -5x - 4

Step-by-step explanation:

yeah-ya............ right?

If b = ⟨6,5⟩, and c = ⟨2,9⟩, find a = 5b − 6c.

Answers

Answer:

< 18, - 29 >

Step-by-step explanation:

a = 5b - 6c

   = 5 < 6, 5 > - 6 < 2, 9 > { multiply each element by the scalar ]            

   = < 30, 25 > - < 12, 54 > [ subtract corresponding elements ]

   = < 30 - 12, 25 - 54 >

    = < 18, - 29 >

Answer:

a=(18,-29)

Step-by-step explanation:

You plug (6,5) in for 5b and you plug (2,9) in for -6c so now you get a=5(6,5)-6(2,9) then you cross multiply the 5 and the -6 therefore you get a=(30,25)+(-12,-54) then you add them together getting the answer a=(18,-29).

help ASAP please PLS​

Answers

Answer:

-103

Step-by-step explanation:

Just subtract

Answer:

-103

Step-by-step explanation:

You add all the numbers then put the negative sign.

can someone help me with this

Answers

Answer:

b

Step-by-step explanation:

I need this points for algebra help please

Answers

Answer:

ur mom

Step-by-step explanation:

lol

How I can apply the distribute property to this question?

Answers

14 = 2•7 and 35 = 5•7, so the GCF of 14k and 35 is 7.

14k + 35 = 2•7k + 5•7 = 7 (2k + 5)

(Remember that the distributive property says a (b + c) = ab + ac.)

Roxanne has 142 songs on her MP3 player Tessa has 11 times as many songs as Roxanne so how many songs does Tessa have?

Hurry I need this :(

Answers

Answer:

142×11=1152

Step-by-step explanation:

hope it helps you:)

what is the right answer
giving out brainliest

Answers

The answer is QT bisects VS

because according to the image you can see by the markings that both sides of VS are congruent being divide by QT

Hope this helps!
Brain is much appreciated!

3c+2=20
c
ok anwer this

Answers

Answer:

3c =20-2

3c = 18

c = 18÷3

=6

Answer:

Here is Your answer

Step-by-step explanation:

Hope u Like it

C = 2/17

Plz Mark me As Brainiest

Other Questions
what is likely to play a more important role in a mixed economy than in a free market economy A computer has __ IP address(es). A. Many B. One Give one example of how environmental factor could influence the way a gene is expressed. Which of the following statements correctly uses the distributive property?-2(15 - 3) = -2(15) + (-2)(3)7(9 - 8) = 7(9) - 89(-7 + 6) = 9(-7) + 9(6)-3(12 + 5) = -3(12) - (-3)(5) Find the total surface area of this triangular prism25 cm24 cm10 cm14 cm DON'T SEND A LINK AND JUST ANSWER IT PLZ best answer get brailyestwhat is a refrain and what is it often used in? Which instruments has indefinite pitch If the mean of five values is 8.2 and four of the valuesare 6, 10, 7, and12, find the fifth value. Drag each label to the correct location on the chart. Each label can be used more than once.Match each excerpt from the passage with the tone It conveys.opinion-basedinformativecriticalShaw was a drama crtic for the SaturdayReview from 1859-98."Progress is impossible without change,and those who cannot change their mindscannot change anything."Shaw was awarded the Nobel Prize forLiterature in 1925.Shaw's style of writing became sopopular that his plays actually came tobe termed as "Shavian comedies.""His ideas were those of a somewhatabstract logical radicalism; hence theywere far from new, but they receivedfrom him a new definiteness andbrilliance..." QuestionEach data point on the scatter plot represents last months necklace and earring sales, in thousands of dollars, at one of the fourteen locations in a nationwide jewelry store chain. The correlation coefficient between necklace sales and earring sales is 0.98. Wes says that an increase in necklace sales must cause an increase in earring sales. Ann says that an increase in earring sales must cause an increase in necklace sales. Who is correct? what is parallelogram? the question in the picture A natural number is less than the sum of its opposite and 8. Two identical squares of sides 17 cm overlap to form a rectangle as shown below. The shaded part is the overlapping region I need help on this math question Answer to question in picture Mario started his homework at 3:30 he finished 25 minutes later what time did he finish his homework Background knowledge is Line ST and point V are shown on the graph. On a coordinate plane, line S T goes through (negative 5, 0) and (5, 2). Point V is at (0, negative 2). Line VW is to be drawn on the graph such that it is perpendicular to line ST. If the coordinates of point W are (1, y), what is the value of y? 7 5 2 3.