factorise 2x^2 + 7x + 3

Answers

Answer 1
Answer:
=2x^2 +7x+3
Make pairs:
= 2x^2+6x+x+3
= 2x(x+3)+1(x+3)
=(x+3)(2x+1)

Related Questions

+10 points
For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 8 N acts on a certain object, the acceleration of
the object is 4 m's?. If the force is changed to 18 N, what will be the acceleration of the object?

Answers

Answer:

[tex]9\ m/s^2[/tex]

Step-by-step explanation:

For a moving object, the force acting on the object varies directly with the object's acceleration.

F ∝ a

or

[tex]\dfrac{F_1}{a_1}=\dfrac{F_1}{a_2}[/tex]

Put F₁ = 8 N, a₁ = 4 m/s², F₂ = 18 N and a₂ = ?

Put all the values,

[tex]\dfrac{8}{4}=\dfrac{18}{a_2}\\\\2=\dfrac{18}{a_2}\\\\a_2=9\ m/s^2[/tex]

So, the new acceleration is [tex]9\ m/s^2[/tex].

HELP ILL GIVE BRAINLIEST

An angle measures 158º more than the measure of its supplementary angle. What is the measure of each angle? _° and _°​

Answers

Answer: 158 and 28

Step-by-step explanation:

Supplementary angles are angles that add to 180, so 180-158 = 28 degrees.

help me and ill give brainly

Answers

It would be

Hope this helps

Answer:

(-inf, 5)

Step-by-step explanation:

just the previous answer, in anothe r form

Find the number of terms in 3(x + 5y + 6)

Answers

Answer:

3

+

1

5

+

1

8

Step-by-step explanation:

luz drives at an average speed of 60 miles per hour.
She has driven for 2 hours and has traveled a distance of 120 miles.

This situation can be represented with a linear equation written in point-slope form, where x represents the number of hours and y represents the number of miles.

Answers

Answer:

The answer is y = 60x, there is no y-intercept as she has started at zero.

Step-by-step explanation:

Hope this helps!

Answer:

i got the first one wrong(not 4)

the second is (2,120)

and the last y-120=60(x-2)

Step-by-step explanation:

A triangle with vertices D, E, and F are plotted on the coordinate plane at (0, 5). (2, 0), and (-4, 2), respectively. When constructed,
medians DG and EH intersect at the point with which coordinates? Round each coordinate to the nearest tenth if necessary.


A. (-0.7, 2.5)

B. (-1, 1)

C. (-0.7, 2.3)

D. (-2, 3.5)

Answers

Given:

Vertices of a triangle are D(0,5), E(2,0) and F(-4,2).

To find:

The intersection point of medians DG and EH.

Solution:

We know that, intersection point of all the medians of a triangle is called centroid.

The formula of centroid is

[tex]Centroid=\left(\dfrac{x_1+x_2+x_3}{3},\dfrac{y_1+y_2+y_3}{3}\right)[/tex]

Vertices of a triangle are D(0,5), E(2,0) and F(-4,2). So, the centroid of the triangle is

[tex]Centroid=\left(\dfrac{0+2+(-4)}{3},\dfrac{5+0+2}{3}\right)[/tex]

[tex]Centroid=\left(\dfrac{-2}{3},\dfrac{7}{3}\right)[/tex]

[tex]Centroid=\left(-0.666...,2.333\right)[/tex]

Round each coordinate to the nearest tenth.

[tex]Centroid=\left(-0.7,2.3\right)[/tex]

Therefore, the correct option is C.

A 25 foot ladder leans against a house. How far
is the foot of the ladder from base of the building
if the top of the ladder is 20 feet from the ground?
A. 20 ft
B. 15 ft
C. 18 ft
D. 10 ft

Answers

Answer:

x=15

Step-by-step explanation:

please help me with this

Answers

Answer:

(48,15), (63,39), (13,25), (71,52), (28,52)

Step-by-step explanation:

an ordered pair is pretty much an x that goes with a y

(48,15)
(63,39)
(13,25)
(71,52)
(28,52)

if two angles in a triangle are 40° and 30°, then the third angle measures 110

Answers

Answer:

Si

Step-by-step explanation:

Raymond is 7.In 3 years,his age will be 5/3 the age of his sister marissa. How old will marissa he in 3 years?

Answers

Answer:

6 years old

Step-by-step explanation:

Raymond is 7His sister is x

In 3 years Raymond will be 10, and his sister x + 3:

10 = 5/3(x + 3)x + 3 = 6x = 3

Marissa is 3 now and will be 6 in 3 years

How do I do this please help me

Answers

Answer: I think it might be (0,8)

Step-by-step explanation:

answers for both boxes please :)​

Answers

Answer:

4,9

Step-by-step explanation:

since y = x+5, substitute the second equation into the first

then the first equation becomes x+5=2x+1

solve and you get x=4

substitute x for 4 in the second equation and you get y = 9

if this answer was correct, please mark this as brainliest! thanks

Dominique paid $15.50 to join an online music service.If she purchases 10 songs each month at a cost of $0.99 per song,what will be the total amount she has spent after 8 months.

Answers

Answer:

94.7

Step-by-step explanation:

15.50+10*0.99*8

Someone plz help me have a great day ツ

Answers

Answer

What’s your scratch username

Answer:

11 weeks and 3 days

I will give brainlist

Answers

Answer:

7

Step-by-step explanation:

Please can someone answer this question quickly please

Thanks

Answers

Answer:

C. 5/7

Step-by-step explanation:

Answer:

It is C.5/7

Step-by-step explanation:

Hope this helped have an amazing day!

-2 + x = -x + 2 what is x

Answers

Answer:

[tex]\large\boxed{\tt x=2}[/tex]

Step-by-step explanation:

[tex]\textsf{We are asked to solve for the value of x.}[/tex]

[tex]\textsf{We are given an equation where x is on both sides of the equation.}[/tex]

[tex]\large\underline{\textsf{Solving;}}[/tex]

[tex]\textsf{Begin solving by adding x to both sides of the equation to cancel out -x on the right}[/tex]

[tex]\textsf{side of the equation. Afterwards, simplify the left side of the equation to evaluate}[/tex]

[tex]\textsf{x.}[/tex]

[tex]\large\underline{\textsf{Evaluating x;}}[/tex]

[tex]\tt -2 + x= -x + 2[/tex]

[tex]\textsf{Remove the -x on the right side by adding x to both sides of the equation.}[/tex]

[tex]\tt -2 + x +\boxed{\tt x} = -x + \boxed{\tt x}+ 2[/tex]

[tex]\tt -2 + 2x = 2[/tex]

[tex]\textsf{Now, we should simplify the left side of the equation as there's only a whole number}[/tex]

[tex]\textsf{on the right side of the equation.}[/tex]

[tex]\textsf{Remove the -2 on the left side of the equation by adding 2 to both sides of the equation.}[/tex]

[tex]\tt -2 + \boxed{\tt 2}+ 2x = 2 + \boxed{\tt 2}[/tex]

[tex]\tt 2x = 4[/tex]

[tex]\textsf{Lastly, divide both sides of the equation by 2 to find the value of x.}[/tex]

[tex]\tt \frac{2x}{2} = \frac{4}{2}[/tex]

[tex]\large\boxed{\tt x=2}[/tex]

Answer:

[tex] \sf \: x = 2[/tex]

Step-by-step explanation:

Now we have to,

→ Find the required value of x.

The equation is,

→ -2 + x = -x + 2

Then the value of x will be,

→ -2 + x = -x + 2

→ x + x = 2 + 2

→ 2x = 4

→ x = 4 ÷ 2

→ [ x = 2 ]

Hence, the value of x is 2.

5 dived by 1 over 10

Answers

50. You’d multiply by the reciprocal, which is 10z

Write an equation of the line that passes through (2,-1) and is parallel to the line y=-3x+8

Answers

Answer:

y = - 3x + 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 8 ← is in slope- intercept form

with slope m = - 3

Parallel lines have equal slopes, then

y = - 3x + c ← is the partial equation

To find c substitute (2, - 1) into the partial equation

- 1 = - 6 + c ⇒ c = - 1 + 6 = 5

y = - 3x + 5 ← equation of line

Can anyone help with this please?

Answers

Answer:

A

Step-by-step explanation:

Ryan is building a treehouse it will take 13 1/4 hours to complete he can work on the treehouse 1 1/2 hours each day how many days will it take Complete up with the treehouse complete plzz help like now

Answers

Answer:

9 days

Step-by-step explanation:

13 1/4 / 1 1/2 = 8 5/6 so 9 days

What is the answer to:
x/-6 -8 ≤ -12

Answers

Answer:

x (is greater than or equal to) -24

Step-by-step explanation:

x/-6 - 8 (is greater than or equal to) -12

add 8 to both sides

x/-6 (is greater than or equal to) 4

multiply both sides by -6

x (is greater than or equal to) -24

sorry I didnt know where to find the sign so I just wrote is greater than or equal to

If 10x +5 = 100, is x greater than 10 or less than 10? Without solving the equation, explain how you
know.

Answers

Answer:

Step-by-step explanation:

X is less than 10 because you have the plus in the equation and so it as to be less than ten so that when you multiply it by 10 it equals less than 100. I don’t know if my explanation makes sense but I hope it helps.

Question is on the photo pls help

Answers

Answer:

d)-8

Step-by-step explanation:

-6s-¹t²-6(3)-¹(-2)²-6(⅓)(4)-8

PLEASE ANSWER THIS! THANKS! :D

Answers

€31.65 is the answer to your question

Answer:

38 euros

Step-by-step explanation:

ok, so,

you know that

£3 is equal to 4 euros

this means that    0.75 pound is equal to 1 euro

       28.50/0.75=38

do 38 times 1, which means that it is 38 euros

please mark me as brainliest!!!<3

PLEASE PLEASE HELP!~!!!!!!!!!!!!!!!!!!!!!!!!

Answers

9514 1404 393

Answer:

  $6.87

Step-by-step explanation:

The cost of 0.6 pounds of blueberries is ...

  (0.6 lb)($3.98/lb) = $2.39

The cost of 1.8 pounds of clementines is ...

  (1.8 lb)($2.49/lb) = $4.48

Then the total cost of the purchase is ...

  $2.39 +$4.48 = $6.87

The combined cost is $6.87.

Select the correct answer.
Which table represents a linear function?
NEED ASAP

Answers

Answer:

C

Step-by-step explanation:

the rate of change is constant in y (adding 3) and x (adding 2)

a i’m pretty sure sorry if it’s wrong

Find the value of x. ​

Answers

Answer:

x = 12

Step-by-step explanation:

start with x, subtract y, multiply by a, then add z

Answers

X - Y * A + Z is the answer

What is the value of K?
k=
8
m
o
k
N
M
what is the answer to this ? :)

Answers

Answer:

k is 2, l=2√5, m=8√5

Step-by-step explanation:

Triangle MNO is half size of the triangle LON

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