Factor 2x^2 - 4x - 30 =0 ( divide by 2 first!)

Answers

Answer 1

Answer:

Let's apply the quadratic formula:

x

=

4

±

4

2

4

(

2

)

(

30

)

2

(

2

)

x

=

4

±

16

+

240

4

x

=

4

±

256

4

x

=

4

±

16

4

x

=

1

±

4

x

=

5

,

3

Therefore, the solutions to the equation are

x

=

5

and

x

=

3

.

.

Step-by-step explanation:

Explanation:

All the terms in the equation are even, so we can divide by 2 immediately to make the numbers smaller.

2

x

2

+

4

x

30

=

0

x

2

+

2

x

15

=

0

Try to factor before we use loner methods of the quadratic formula or completing the square.

Find factors of 15 which subtract (because of -15) to give 2.

The signs will be different (because of -15), there must be more positives. (because of +2)

5 and 3 will work!

5

×

3

=

15

and

5

3

=

2

(

x

+

5

)

(

x

3

)

=

0

Putting each factor equal to 0 gives the solutions:

x

=

5

or

x

=

3

Answer 2

Answer:

(x+3)(x-5)

Step-by-step explanation:

2x²-4x-30 = 0

devide by 2

; x²-2x-15 = 0

(x+3)(x-5) = 0


Related Questions

I have no clue

Question 7

Answers

Answer: 27[tex]a^{-6}b^{3}[/tex]

Step-by-step explanation:

you can isolate the separate terms so you get

3^3 x a^(-2x3) x b^3 = 27 a^-6b^3

if 240 slices of cake are shared into the same ration 3:5 among the boys and girls how many slices will each students recieve

Answers

7 slices each your welcome r

thissssssssssssssssssssssssssssssssssssssss

Answers

Answer:

w represents

Step-by-step explanation:

up 2 is the y coordinates

Solve the following system of equations using elimination.

5x+y=24
-5x-4y=-56

Solve for y:


Solve for x:

Answers

I believe that this is the right answer

A number minus 33 is at least -5

Answers

Answer:

28

Step-by-step explanation:

Put in calculator 28-33= -5

Solve the pair of simultaneous equations
x = 4 - y
x = y + 2

Answers

(3,1)

x=3; y=1

Step-by-step explanation:

Algebraic

Answer:

The solution to this system of linear equations is (3, 1).

Step-by-step explanation:

Here we have two equations for x.  We can eliminate x by setting these two equations equal to one another, obtaining 4 - y = y + 2, or 2 = 2y

Then y must be 1.  Substituting this into the first equation, we get x = 4 - 1 = 3.

The solution to this system of linear equations is (3, 1).

Which equation represents the function shown on the graph?

y = x
y = x
y = 2x
y = 4x

Answers

Answer:

x = 0, y = 0

Step-by-step explanation:

choose the number that is less than:3.15 x 10A.1.11 x 10B.9.9 x 10C.36,500D.3.26 x 10

Answers

The Answer is A……… hope this helps

Find m angle O Y X in the diagram above.
URGENT!!

Answers

Answer:

• Angle OYW or Angle WYO is 90°

• Angle OYX or Angle XYO is 90°

• Angle WYX is 180° [ A straight line ]

Step-by-step explanation:

Line WYX is a perpendicular bisector of radius lind of the circle.

[tex]{}[/tex]

What starts with a p has a t in the middle and has an R at the end that has 12 letters that is for ur body


Note: its not any subject for school and its not anything for school so ignore the mathematics subject thing.

Answers

Answer:

Pronator??

Step-by-step explanation:

wich of the following functions maps 3 to -5?

Answers

Answer:

A

Step-by-step explanation:

Consider all options and find f(3):

A.

Then

Not -5, so this option is false.

B.

Then

This option is true.

C.

Then

Not -5, so this option is false.

D.

Then

Not -5, so this option is false.

expand: -4(2x + 2) +3​

Answers

Answer:

-8x-8+3

-8x-5

that is the answer for this question and I will send you the link to mp3 and

Here is a balanced Hanger. Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger

Answers

Answer:

c if am wrong please correct me

All you need is on the photo


Please put these answer choices in oreder




Please don't answer random if you do that tou are gonna lose points

Answers

Answer: a

Step-by-step explanation:

Will give brainliest
No need to give explanation.
No links!!

The system of equations has

Answers

Answer:

One Solutions I think

Step-by-step explanation:

Eight children can fold 5 paper cranes in 6 minutes.


(i) How long will it take 36 children to fold 120 paper cranes?

Answers

36 girls can fold 120 paper crane s

slope=5, y-intercetp=3

Answers

y=5x+3

Hope this helps

Answer:

y=−5x+3. Explanation: The y-intercept on a straight line graph is always the constant. In that the constant is the value of c

Step-by-step explanation:

5. Identify the type of function and the degree of the function: f(x)=6x +3x² -11
A. Quadratic, degree 3
B. Quadratic, degree 2
C. Cubic, degree 6
D. Quartic, degree 11

Answers

Answer:

B. Quadratic, degree 2

Step-by-step explanation:

ALl you have to see is the degree. The degree is the largest exponent of the expression. The largest exponent here is 2 and since there is only one answer with a degree of two, the answer is b.

Answer:

B

Step-by-step explanation:

the largest exponent is 2 i.e the degree is 2

What another number is divider to pi 3.14

Answers

The another number is divider to pi 22/7

The another number is divider to pi 22/7

GCF and LCM: word problems. Kiara is printing orange and green forms. She notices that 6 orange forms fit on a page, and 2 green forms fit on a page. If Kiara wants to print the exact same number of orange and green forms, what is the minimum number of each form that she could print? no links pls​

Answers

Answer:

6

Step-by-step explanation:

The LCM of 6 and 2 is 6.

What is the perimeter of a rectangle whose length is twice the width? Width = 7 cm.

Answers

Answer:

42 cm is the perimeter

Step-by-step explanation:

Brainleast answer mo nalang

Answer:

P = 42 cm

Step-by-step explanation:

The perimeter (P) is the sum of the 4 sides of the rectangle with opposite sides being congruent.

Given width = 7 cm then length = 2 × 7 = 14

P = 7 + 7 + 14 + 14 = 42 cm

7/11 x 7/15 x 3 multiply and write your answer as a fraction in the simplest form.

Answers

Answer: 49/55

7/11 x 7/15 x 3

49/165 * 3

147/165

49/55

The answer is 49/55!

What is the probability that the reader is a young adult given that their favorite is Asimov or Brooks?​

Answers

Answer:

7/16

Step-by-step explanation:

80 is the given amount which would become the denominator then you get the number of young adults in those sections and add them up to equal 35

then simplify

45 + 30 = 100 - w


Answer:



Explanation:

Answers

Answer:

w = 25

Step-by-step explanation:

45+30 = 100 - w75 = 100 - ww = 100 - 75w = 25
In order to work out “w”, you could begin by working backwards, starting with 100, then doing the inverse operation (subtracting 30 then subtracting 45).

100 - 30 = 70 - 45 = 25.

100 - 25 = 45 + 30

w = 25

What is 3.6% as decimal’s?

Answers

Answer:

.036

Step-by-step explanation:

.036 = 3.6%

converting percent to decimal:  remove the percent sign and move the decimal point two places to the left

Answer:

0.036

Step-by-step explanation:

To convert to a decimal, divide the percent number by 100.

3.6 ÷ 100=0.036

Therefore, the decimal form is 0.036

Please help me on this question!

Answers

-8 to 8

Step-by-step explanation:

f(x) is the same as y when discussing functions. Therefore we look for the places where the line is above or touching the x axis

Please answer 1 and 2
Will mark brainliest!!!!

Answers

Answer:

1. No they are not parallel

2. no they are not perpendicular

Step-by-step explanation:

1. the slope for p is  5/2 mean while the slope for o is 4/2 therefore they are not parellel because the slopes are different

2. the slope for m is 2/1 and the slope for k is 3/5. inorder for them to be parelle for slope for k would have to be -1/2 and m would be 2/1 OR the slope for k would be 3/5 and the slope for m would be -5/3

what is 57/100- 3/10

Answers

Answer:

27/100

Step-by-step explanation:

make 3/10 into an equivalent fraction with a denominator of 100

therefore, multiply both 3 and 10 by 10 to get:  30/100

57/100 - 30/100 = 27/100

Answer:27/100 Step-by-step explanation:57/100 - 3/10=> 57/100 - 30/100=> 27/100Therefore, 27/100 is your answer.Conclusion:

Hoped this helped

[tex]BrainiacUser1357[/tex]

The width of the rectangle is 50% of its length. What is the area of the rectangle?

Answers

Answer:

area = length x half of length

Step-by-step explanation:

whatever the length of the rectangle is, replace it with 'length'

for example if the length was 6cm, it would be:

length x half of length = area

6cm x (6/2) = area

6cm x 3cm = area

18cm² = area

I'M MARKING BRAINLIEST PLEASE HELPPPPP

Answers

Answer:

option a is the correct answer

Step-by-step explanation:

bye

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