help me on number 4 you get brainliest

Answer:

Answer A

Step-by-step explanation:

In the equation [tex]\dfrac{10}{x^2-1}=\dfrac{15}{3x-3}[/tex], 1 makes the denominator zero and 1 is the solution of the equation derived from cross multiplication.

Given :

Option A)

Given :

[tex]\dfrac{10}{x^2-1}=\dfrac{15}{3x-3}[/tex]

The above expression is not defined for x equal to 1 so, 1 is an extraneous solution.

Simplify the above equation by doing the cross multiplication.

[tex]10(3x-3)=15(x^2-1)[/tex]

[tex]30(x-1)=15(x-1)(x+1)[/tex]

2 = x + 1

x = 1

In the given equation 1 makes the denominator zero and 1 is the solution of the equation derived from cross multiplication.

Therefore, the correct option is A) and therefore, no need to check the other options.

For more information, refer to the link given below:

https://brainly.com/question/11897796

Step-by-step explanation:

The equation of the line is y = 4x - 9.

Answer:2/3 / 16

Step-by-step explanation:

I js did it n got that

Answer:

2/3 / 16 or two-thirds divided by 16

Step-by-step explanation:

i did it and got it right and i need points. ty c:

Answer: 36

Step-by-step explanation:

Sry I got 12 but I changed it since 36 is correct

Answer:

36

Step-by-step explanation:

( 3 * 2 ) ^(2)

Remember the order of operations;

1. Parenthesis

2. Exponents

3. Multiplication or Division

4. Addition or subtraction

( 3 * 2 ) ^ (2)

Simplify what is in parenthesis first.

(6)^(2)

Now simplify the exponent. Remember, the power or the degree to which the base is at is telling one the number of times one needs to multiply the base by itself;

36

Answer and Step-by-step explanation:

Question #10.

We are told to fill in the blank that corresponds to a property of congruence for like KM and line KM.

A property that states that something is equal to itself if the Reflexive Property of Congruence.

The Reflexive Property of Congruence is the answer. This is because it comes from a latin word called reflexus (also known as reflect), which is when something is the same of itself. In this case, the line KM is reflexive, or congruent to itself because when reflected, it reflects onto itself.

#teamtrees #WAP (Water And Plant) #ELM (Every Life Matters)

Answer:

$112.50

Step-by-step explanation:

25% is $37.50

37.50x3=112.50

Answer:

its 112.50

Step-by-step explanation:

i got it right

Answer:

2.94

Step-by-step explanation:

3.29 - 35/100 = 2.94

Answer:

349

Step-by-step explanation:

please give thanks by clicking the heart :)

Answer:

Step-by-step explanation:

1,83 x 10^2

lenght :

[tex]2x - 3[/tex]

breadth :

[tex]4x + 5[/tex]

AREA = LENGTH × BREADTH

[tex] = (2x - 3) \times (4x + 5)[/tex]

multiplying the above gives :

[tex] = 8 {x}^{2} + 10x - 12x - 15[/tex]

[tex] = 8 {x}^{2} - 2x - 15[/tex]

Answer:

(4,-2.5)

Step-by-step explanation:

because you move to the right it is a positive x-axis point and since you are moving down it is a negative y- axis point

Answer:

-3,-4.5

Step-by-step explanation:

Answer:

You can cancel your investment without wasting a lot of money.

Step-by-step explanation:

Short-term means that you dont have it for a long time, so you could basically wait it out and then cancel.

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Answer:

Short-term investments, also known as marketable securities or temporary investments, are those which can easily be converted to cash, typically within 5 years. Many short-term investments are sold or converted to cash after a period of only 3-12 months. Some common examples of short term investments include CDs, money market accounts, high-yield savings accounts, government bonds and Treasury bills. Usually, these investments are high-quality and highly liquid assets or investment vehicles.

Step-by-step explanation:

Answer:

0.75 cup = 0.1763 liters

Step-by-step explanation:

From the question:

Using the conversion factors given in question

We are converting

0.75 cup to liters

Step 1

Convert cups to pint

1 cup = 0.5 pints

0.75 cup = x pints

x = 0.75 × 0.5 pints

x = 0.375 pints

Step 2

Convert pints to Quart

1 pints = 0.5 quart

0.375 pint = x quart

Cross Multiply

x quart = 0.375 × 0.5 quart

x quart = 0.1875 quart

Step 3

Convert from quart

1 quart = 0.94 liter

0.1875 quart = x liter

Cross Multiply

x liter = 0.1875 × 0.94 liter

x liter = 0.17625 liters

Approximately to 4 significant figures= 0.75 cup = 0.1763 liters

Answer:

0.75 cup = 0.1763 liters

Answer:

n = 3.02

Step-by-step explanation:

12.65 - n = 9.63

- n = 9.63 - 12.65

- n = - 3.02

-n/-1 = -3.02/-1

n = 3.02

Answer:

3.02

Step-by-step explanation:

Answer:

3, 4, and 5

Step-by-step explanation:

Given: We're looking for x, x+1, and x+2

Requirements: (x+1)+(x+2)=3(x)

Solve equation:

x+1+x+2=3x

2x+3=3x

3=x

This means the three consecutive integers are 3, 3+1, and 3+2 which is the same as 3, 4, and 5

Answer: Mixture C. 1:3

Step-by-step explanation:

given data:

paint mixtures

mixture               blue                white

   A                       12                      5

   B                        6                       6

   C                        12                     4

   D                        6                       5

Solution:

= [tex]\frac{4}{12}[/tex]

= [tex]\frac{1}{3}[/tex]

= 1:3

from the given data, mixture C has the highest number or ratio of blue paint to white paint which is 1:3 this means for every bucket of white paint there are 3 other buckets of blue.

Answer:

Mixture B

Step-by-step explanation:

got it right on the test

Answer: The height of the flagpole is 12 feet.

Step-by-step explanation:

Let the height of the flagpole be 'H'.

So, from the figure, we can conclude that, the height and shadow of the flagpole is in proportion to the height and shadow of the stick.

Given:

Height of stick is,

Shadow of the stick is,

Shadow of the flagpole is,

Now, as these are in proportion, we have

Plug in the given values and solve for 'H'. This gives,

Hence, the height of the flagpole is 12 feet.

Answer:

C. 25² + 36² = 49²

Step-by-step explanation:

We use the Pythagoras theorem to determine if the triangle is a right angle triangle. The theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

In geometry, hypotenuse is the longest side in a right angle triangle. This means it would have the highest number.

A. 36+ 25= 49

This is wrong because the theorem deal with the sum of the squares of the other two sides.

B. 25 + 36 = 49

This is wrong because the theorem deal with the sum of the squares of the other two sides.

C. 25² + 36² = 49²

This is correct as it matches the theorem.

D. 36² –25² = 49²

This is wrong because the theorem deal with the sum of the squares of the other two sides and not their difference.

Answer:

Read Under

Step-by-step explanation:

Just did the quiz. First one is "a + b"

Second spot put "a+b/2"

Third put "c/2"

Finally put "CE" and then "BE"

A parallelogram is a quadrilateral , In which opposite sided are equal and parallel to each other.

The coordinate of point C are (a + b , c)

The coordinates of the midpoint of diagonal BD are [tex](\frac{a+b}{2},\frac{c}{2} )[/tex]

AC and BD intersect at point E with coordinates [tex](\frac{a+b}{2},\frac{c}{2} )[/tex]

By the definition of midpoint, AE ≅ CE  and BE ≅ DE.

Therefore, diagonals AC and BD bisect each other.

Properties of Parallelogram shown below,

Since, Diagonals of a parallelogram bisect each other. Therefore, point E is the mid point of both diagonal AC and BD.

Let us consider , coordinate of point C are (x, y)

By using mid point formula,

                Coordinate of point E =  [tex](\frac{x}{2},\frac{y}{2} )[/tex]

                        [tex](\frac{a+b}{2},\frac{c}{2} )=(\frac{x}{2},\frac{y}{2} )[/tex]

  So,     [tex]C(x,y)=(a+b,c)[/tex]

E is the point at which both diagonal bisect to each other. Therefore, E is the mid point of both diagonal AC and BD.

So, coordinate of point E are [tex](\frac{a+b}{2},\frac{c}{2} )[/tex]

Thus, By the definition of midpoint, AE ≅ CE  and BE ≅ DE.

Therefore, diagonals AC and BD bisect each other.

Learn more:

https://brainly.com/question/13251657

Answer:

what are teachers teaching these days!?!?!?

Step-by-step explanation:

‍♀️

Answer: 1/2x + 1/3

Step-by-step explanation:

Given:

1/4(x) + 3/4(x) - 1/2(x) + 1 - 2/3

Step 1: Combine like terms

1/4(x) and 3/4(x) have a common denominator of 4.  This means that you can add them together.

1/4(x) + 3/4(x) = 4/4(x) = x

Step 2: Find the common denominator of x in step 1 and combine like terms  

x - 1/2(x) = 2/2(x) - 1/2(x)

Now that we have the common denominator of x, we can combine like terms.  Its the same as adding or subtracting fractions without a variable.  In this case, you must subtract 1/2(x) from 2/2(x).

2/2(x) - 1/2(x) = 1/2(x)

Step 3: Find the common denominator of the constants and combine like terms

1 - 2/3 = 3/3 - 2/3

Now combine like terms.  Simply subtract 2/3 from 3/3.

3/3 - 2/3 = 1/3

Step 4: Write the simplified equation

1/2(x) + 1/3

This is the answer

Answer:

y=17x-55

Step-by-step explanation:

y-(-4)=17(x-3)

y+4=17x-51

y=17x-55

Answer: 100 rides are needed to break even.

Step-by-step explanation:

C(x)=15x+2000 - x is the number of rides.

R(x)=35 x , where x is the number of rides

35x=15x+2000

35-15x=2000~subtract 15x from both sides~

20x=2000 ~simplify~

x=2000/20 ~dividing both sides by 20~

x=100

Answer:

I think it's A, B, and B

Step-by-step explanation:

Pretty sure that irrational numbers are like square roots of things

Answer: Ehhhhhhh

Hello?

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