2. Which of the following quadratic equations has solutions x = 2a and x = -5b?
A. x2 - 10ab=0
B. x2 + x(2a – 5b) – 10ab = 0
C. x2 + x(5b - 2a) – 10ab = 0)
D. x? – x(2a – 5b) + 10ab=0
E. x2 + x(2a - 5b)+10ab = 0

Answers

Answer 1

Answer:

Try D

Step-by-step explanation:


Related Questions

The rectangular prism below is split into cubes. Each cube is 1/5 of an inch on each side. Which of the following expressions represent the volume, in cubic inches, of this rectangular prism? Select all that apply.
A. 1/5 x 1/5 x 1/5
B. (1/5 x 1/5 x 1/5) x 12
C. 2/5 x 3/5 x 2/5
D. 2/5 +3/5 + 2/5
E. (2 x 1/5) x (3 x 1/5) x (2 x 1/5)
F. (2 x 25 x2/5) + (2 x 3/5 x 2/5) + (2 x 2/5 x 3/5)

Answers

Answer:

a b and 3

Step-by-step explanation:

hope this helps :)

Kimberly has 3.25 kilograms of flour in a container. She adds 45 grams of flour to the container. How many kilograms of flour does she have now?

Answers

Answer:

3.295 Kilograms of flour

Step-by-step explanation:

Kimberly has 3.25 kilograms of flour in a container. She adds 45 grams of flour to the container. How many kilograms of flour does she have now?

Kimberly has 3.25 kilograms of flour in a container.

She adds 45 grams of flour to the container.

We convert 45 grams to kilograms

1 gram = 0.001 kilogram

45 grams = x

Cross Multiply

x = 45 × 0.001 kilogram

x = 0.045 kilograms

The kilograms of flour she has now is calculated as:

Number of kilograms of flour in the container + Number of kilograms of Flour just added

= 3.25 kilograms + 0.045 kilograms

= 3.295 Kilograms of flour

figure B is a scaled copy of figure A what is the scale factor from figure A to figure B​

Answers

Answer:

the scale factor is 9

Step-by-step explanation:

cause u count the units in figure B and it came to 27 and figure a is 3 so what can u times by 3 to get 27 thats how i got it lol

PLEASE HELP ASAP 100 POINTS AND BRAINIEST
please solve 7y + 13 -4z when =5 and z =9.

Answers

Answer:

35+13-36

Step-by-step explanation:

35+13=48

48-36=12

the answer is:

=12

if you need the step by step explanation let me know :)

Do u love school? I while give u brainliest and alot of points to the people who answer first

Answers

Answer:

yes

Step-by-step explanation:

School is an educational building where you learn math and reading and it doesnt help you but it benifits you in jobs.

Answer:

well yes but no at the same time

Step-by-step explanation:

have a nice week. please mark as brainllest

[o]-[o]

\___/

Does somebody know how to solve this?

Answers

Answer:

Since YS is an angle bisector, ∠XYS=∠SYZ

∠SYZ= 34.2°

∠XYZ= 34.2+34.2=68.4°

Step-by-step explanation:

IF KLMN is a rhombus, and m angle KLM=80^ , what is the m angle 1

Answers

Answer:

angle 1 = 100°

Step-by-step explanation:

Given:

∠KLM = 80°

Find:

angle 1

Computation:

∠KLM + angle 1 = 180°

80° + angle 1 = 180°

angle 1 = 100°

The measure of an angle is 68.5 degrees.What is the measure of its complementary angle?

Answers

Answer:

90 - 68.5

= 21.5

Hope it helps

Please mark me as the brainliest

Thank you

Which equation has exactly ONE solution?
A) 3 + 10x / 2 = 4x + 2
B) 15x − 5 / 3 = 5x + 4
C) 2 + 6x / 2 = 3x + 1
D) 4x − 10 / 2 = 2x − 5

Answers

Answer:

the answer is d.

Step-by-step explanation:

please mark brainliest

Answer:

I don't know  because

Step-by-step explanation:

A= -1

B)= 17/30

C)= has no solutions

D)= 0

Identify four tables that show a proportional relationship. Giving correct answer brain and 5 stars!!!

Answers

Answer:

The correct answer is A

Step-by-step explanation:

Forget about the decimal nd think about quarters 1 quarter is 25 2 is 50 3 is 75 and 4 is 1.00

Answer:

The answer is A if I understand the question correctly.

Step-by-step explanation:

Solve the proportion
2/r = 12/18​

Answers

Answer:

r=3

Step-by-step explanation:

Divide the numbers

2/r=12/18

2/r=2/3

Multiply all terms by the same value to eliminate fraction denominators

rx2/r=rx2/3

simplify

2=2r/3

multiply all terms by the same value to eliminate fraction denominators again

3x2=3x2r/3

simplify

6=2r

divide both sides if the equation by the same term

6/2=2r/2

r=3

Subtract. Write your answer in simplest form. 5/6 - 2/9

Answers

Answer:

11/18

Step-by-step explanation:

5/6 - 2/9 = 15/18 - 4/18 = 11/18.

Answer:

Step-by-step explanation:

step 1: [tex]\frac{5}{6}-\frac{2}{9}[/tex]

step 2- make the denominators the same: [tex]\frac{45}{54} - \frac{12}{54}[/tex]

simplify: [tex]\frac{42-12}{54}[/tex]

final answer: [tex]\frac{30}{54} --> \frac{15}{27}-->\frac{5}{9}[/tex]

Simplify the equation. n ÷ 12 = 11​

Answers

Answer:

n=132

Step-by-step explanation:

Answer:

132

Step-by-step explanation:

n/12=11

n=11*12

n=132

hellooop

what is the y-intercept of the graph shown below?

Answers

Answer:

-7 :) hope this helps

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

To find the y intercept find where the line crosses the the x axis at zero so for this graph it crosses at (0,-6) making the y intercept -6

There is a bag with only red marbles and blue marbles. The probability
of randomly choosing a red marble is 2/9. There are 63 marbles in total in
the bag and each is equally likely to be chosen. Work out how many red
marbles there must be.​

Answers

Answer:

No of red marbles = 14

Step-by-step explanation:

Let x be the number of red marbles

x/63 = 2/9

x = 14

No of red marbles = 14

Answer: 14

Step-by-step explanation:

Steve invests $1,800 in an account that earns 3.7% annual interest, compounded continuously. What is the value of the account after 10 years? Round your answer to the nearest dollar. A. about $2,466 B. about $2,589 C. about $2,601 D. about $2,606

Answers

Answer:

B. about $2,589

Step-by-step explanation:

Given data

P=$1,800

R= 3.7%

T=10years

The expression for the compound interest is given as

A= P(1+r)^t

substitute

A= 1800(1+0.037)^10

A= 1800(1.037)^10

A=1800*1.43809495884

A=$2588.570

Hence the answer is  B. about $2,589

PLEASE HELP FOR THIS QUESTION

Answers

Answer:

3 my guy

Step-by-step explanation:

There are 12 people in a tournament. Each player must play against every other player. How many games will be played?

Answers

Answer:

6

Step-by-step explanation:

A player will play against every OTHER player meaning that you will play against 6 players.

A big-screen TV that previously sold for $2,400 has been marked down to $2,040. What is the original price?

Answers

Answer:

easy $2,400

Step-by-step explanation:

What is the volume of the cylinder?

Answers

Answer:

24

Step-by-step explanation:

PLEASE HELP......due today

Answers

Answer:

Yes, *2

Step-by-step explanation:

The second figure is exactly half of the first figure

Ayala has 806 computer files she wants to put on CDs.
If she can fit 19 files on each CD, how many CDs will she need? Enter the correct
answer to complete the statement.

Answers

152829262428191929353919173

The circumference for a round pool that has a diameter of 16 feet would be?

Answers

Answer:

50.266 or 50.27

Step-by-step explanation:

What is true about angle APD?

It is ___ to angle APC

It is ___ to angle CPB​

Answers

Answer:

Step-by-step explanation:

I got this correct on this it is supplementary to apc and vertical to cpb

It is ✔️supplementary to angle ∠APC.

It is ✔️vertical to angle ∠CPB.

One number is 16 more than another number. The two numbers have a sum of 120. Which system of equations could you use to find the two numbers?
A)y=x – 16
y=x + 120
B)y=x + 16
y = x + 120
C)y=x - 16
y=x – 120
D)y= x - 16
y = -x + 120​

Answers

Answer: D)y= x - 16

                y = -x + 120​

Step-by-step explanation:

Let the two numbers be x and y

such that if one number is x , the other number y

Let x be the number which is 16 more than another number , so that it  can be expressed as

x= y+16  which can also be written as

y= x - 16

Also, if the two numbers have a sum of 120, then it can be represented as

x+y=120  or

y = -x + 120​

Therefore system of equations  to find the two numbers are

D)y= x - 16

y = -x + 120​

a) –9 + 3 = ?
b) -7 + ? = -9​

Answers

A= -6
B= -7+16=9
Sorry if it’s wrong

Answer:

a) 6

And b u sure it's plus? not minus?

4. Find the value of x.
A 7
B -7
C 3
D 3.5


Answers

Answer:

l got 7 sorry if it is not the answer

Step-by-step explanation:

2x+12=5x-9 two will come to the other side n become 5x-2x=3x then 9 will go to the other side n become 12+9=21

3x=21 then divide both sides by 3

What is the answer for 3/4X2 2/5-5/6

Answers

1.5, -0.43 is the answer

Answer:

3/4x2 2/5 - 5/6 = 29/ 30

≅ 0.9666667

Step-by-step explanation:

find the value of x in the given figure​

Answers

Answer:

x = 32

Step-by-step explanation:

(2x + 60) + (3x - 40) = 180  because they are supplementary angles

5x + 20 = 180

5x = 160

x = 32

Solve the system of equations.
12x - 5y = –20
y=x+4
2 =
Y=

Answers

Answer:

Solution :

{x,y} = {0/14261512,4}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 4

// Plug this in for variable y in equation [1]

[1] 12x - 5•(x +4) = -20

[1] 7x = 0

// Solve equation [1] for the variable x

[1] 7x = 0

[1] x = 0

// By now we know this much :

x = 0

y = x+4

// Use the x value to solve for y

y = (-0/14261512)+4 = 4

Answer:y = (-0/14261512)+4 = 4

Step-by-step explanation:[2]    y = x + 4// Plug this in for variable  y  in equation [1]

  [1]    12x - 5•(x +4) = -20   [1]    7x = 0// Solve equation [1] for the variable  x

  [1]    7x = 0

  [1]    x = 0 // By now we know this much :

   x = 0    y = x+4// Use the  x  value to solve for  y

   y = (-0/14261512)+4 = 4 Solution : {x,y} = {0/14261512,4}
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