Mathematics College

Simplify the expression and find its value please help i will give brainliest​

Simplify The Expression And Find Its Value Please Help I Will Give Brainliest

Answers

Answer 1

Answer:

7.5

Step-by-step explanation:

a - (2a-1)/a

--------------------

(1-a)/3a

Multiply the top and bottom by 3a

a - (2a-1)/a              3a

-------------------- * ---------------

(1-a)/3a                     3a

3a *a - (2a-1)*3a/a

------------------------

          (1-a)/3a *3a

Simplify

3a *a - (2a-1)*3

------------------------

          (1-a)

3a^2 - 6a+3

------------------------

          (1-a)

Factor

3( a^2 -2a+1)

-----------------------

-(a-1)

3(a-1)^2

---------------

-(a-1)

Cancel like terms

-3(a-1)

Letting a = -1.5

-3( -1.5-1)

-3 (-2.5)

7.5

Related Questions

please help me w this lol i dont get it

Answers

Answer:

i don't get u

Step-by-step explanation:

The ratio of the angles of a triangle is 3:7:2. What is the measure of the largest angle?

Answers

Answer:

the largest angle is 150°

In ΔKLM, k = 4.4 cm, l = 3.1 cm and ∠M=150°. Find the length of m, to the nearest 10th of a centimeter.

Answers

The value of length m is 2.13cm

What is cosine rule?

In trigonometry, the Cosine Rule says that the square of the length of any side of a given triangle is equal to the sum of the squares of the length of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

therefore m² = k²+l²+2klCos M

m² = 4.4²+3.1²+ 2× 3.1×4.4cos 150

m² = 19.36+9.61+27.28(-0.8660)

m² = 28.97-23.62

m² = 5.35

m = √5.35

m = 2.31 cm( nearest tenth)

Therefore the measure of length m is 2.31 cm

learn more about cosine rule from

https://brainly.com/question/23720007

#SPJ1

What are the coordinates of point A?

A. (5,4)
B. (4,5)
C. (4,6)
D. (6,4)

Answers

The answer is A . (5,4)
A (5,4) the 5 is x coordinate and 4 is the y coordinate

Please help me due soon.

Answers

Answer:

Step-by-step explanation:

Substitute in a= -2:

-13(-2) + 15(-2) - 4(-2)

And solve:

26 - 30 + 8 =

-4 + 8 =

4

Answer:

3a-2

Step-by-step explanation:

Lewis directs the school marching band. He uses scale drawings of the football field to design marching formations for the band. The football
field is 100 yards long and 53 yards wide. Lewis always uses a scale of 1 inch to 10 yards for his drawings.
Complete the steps below to find the length and width of the football field as it appears in one of Lewis's scale drawings.
Aa
Part A
What is the actual area of the football field? Assume that the field is shaped like a rectangle.

Answers

Answer:

Actual area of the field = l×b

=100×531/3 sq. yards

=100×177 sq. yards

= 17700 sq. yards

Step-by-step explanation:

pls mark brainliest

I NEED HELP ON A PROBLEM FAST!!​

Answers

Answer:

The answer is the second one , i mean 4.096 cm^3

jamie has 12 bags of candy. in each bag there is 1/4 lb of candy. how many pounds of candy does jamie have in all?

Answers

Answer:
3 pounds

Explanation:
1/4 x 12 = 3

In terms of π, what is the area of the circle? A) 25π cm2 B) 100π ft2 C) 625π cm2 D) 1000π cm2

Answers

9514 1404 393

Answer:

  C) 625π cm^2

Step-by-step explanation:

The area of a circle is given by ...

  A = πr²

where r is the radius. The radius is half the diameter, so is 25 cm. The area is ...

  A = π(25 cm)² = 625π cm²

Helpshshdhdgdghseyeydgd

Answers

Answer:

To round 17.126 to the nearest tenth consider the hundredths’ value of 17.126, which is 2 and less than 5. Therefore, the tenths value of 17.126 remains 1.

17.126 rounded to the nearest tenth = 17.1

The following table contains starting numbers close to 17.126 rounded to the nearest 10th.

area of the algebra tiles as a sum

Answers

The answer is :10x^2-3x+6

What does 3 to the power of 2 minus 4 times 2 plus 6

Answers

Answer:

7 is the answer

Step-by-step explanation:

Answer:

This equals 7

Step-by-step explanation:

I used a calculator

Can I have brainliest pls

can someone help me with this ​

Answers

Answer

So if you want to get the area of a parallelogram you should do length x width

So 3.7 x 12.5= 46.25

I’m sorry if this is a wrong answer but this is what the teacher told us

Teresa bought 11 pounds of sugar for $7.
How many dollars did she pay per pound of sugar?

Answers

Answer:

Its about 1.50$

Step-by-step explanation:

i don't know the exact amount

Answer It, Thanks. -3(-100)

Answers

Answer: 300

Step-by-step explanation:

Answer:

300

Step-by-step explanation:

If all terms are negative then the result will come out positive.

Let $f(x) = x^3 + 3x ^2 + 4x - 7$ and $g(x) = -7x^4 + 5x^3 +x^2 - 7$. What is the coefficient of $x^3$ in the sum $f(x) + g(x)$?

Answers

Answer:

6

Step-by-step explanation:

Adding the two polynomials gives

(x^3 + 3x^2 + 4x - 7) + (-7x^4 +5x^3 + x^2 - 7) =

-7x^4 + (x^3 + 5x^3) + (3x^2 + x^2) + 4x + (-7-7) =

- 7x^4 + 6x^3 + 4x^2 + 4x -14

The x^3 term is 6x^3, so the desired coefficient is 6.

Help pleaseee!!!!!!!!!!!!!!!!!!

Answers

The answer to your question is 2/30 or 2 over 30

Answer: 6.6667% or 2/30

(X+3)(x+4) factor the trinomial

Answers

Answer:

[tex]x^{2} + 7x + 12[/tex]

Step-by-step explanation:

This is already factored so I assume you meant expand it.

Need help ASAP
Question 2

Answers

23 I don’t have to do

i need help with this 1 question

Answers

7 × 8 × 8 = 448

and that's it

7 x 8 x 8 = 448, so what that guy said^^

Which fraction is equivalent to

3/5

Answers

Answer:

12/20

Step-by-step explanation:

C is equivalent to 3/5 because if you times 3 by 4 it’s 12 and then 5 by 4 it’s 20 have a good day!

find the sum of the odd numbers between 100 and 200​

Answers

Answer:

50

Step-by-step explanation:

there are 100 numbers between 100 and 200

50 that are even 50 that are odd

Answer:

137 + 63 = 200

Step-by-step explanation:

PLEASE HELP 20 POINTS

Answers

Answer:

Step-by-step explanation:

You can simply count the number of unit cubes.

There are 11 cubic units.

Graph y=5/3x-9


Please help ASAP

Answers

Answer:

1

Step-by-step explanation:


Hopefully this helps

write 401+402+403+404+405 in sigma notation

Answers

Here is the answer
Message if u can’t read it

To decorate 6 dozen cupcakes with red hot candies, Nan needs about 550 red hots. Which two sacks of candy would be the best buy?plsss help me asap giving brainless and explain whay is that the answer.​ (353, 177, 255, 379)​

Answers

Answer:

If the numbers at the bottom are the sack size, then the 255 and the 353.

They give enough candy but not excessive given the sizes.

If this isn't right I will continue to try to help you but ill need more info

Identify each pair of angles as corresponding, Alternate interior, alternate exterior, or consecutive interior and solve for X

Answers

Answer:

Step-by-step explanation:

19). Angles measuring 90° and (21x + 6)° are Alternate exterior angles.

     Therefore, 21x + 6 = 90

     2x = 90 - 6

     2x = 84

      x = 42

21). Angles measuring 60° and (8x - 4)° are Alternate interior angles,

      8x - 4 = 60

      8x = 60 + 4

      x = [tex]\frac{64}{8}[/tex]

      x = 8

23). Since, angles measuring (-1 + 14x)° and (12x + 17)° are Alternate exterior angles

    Therefore, (-1 + 14x) = (12x + 17)

     14x - 12x = 17 + 1

     2x = 18

      x = 9

25). Both the angles (x + 96)° and (x + 96)° are consecutive interior angles.

      Therefore, (x + 96)° + (x + 96)° = 180° [Property of consecutive interior angles]

      2x + 192 = 180

      2x = 180 - 192

      2x = -12

       x = -6

       Now measure of (x + 96)° = -6 + 96

                                                = 90°

26). Both the angles (20x + 5)° and (24x - 1)° are consecutive interior angles.

      Therefore, (20x + 5)° + (24x - 1)° = 180°

       44x + 4 = 180

       44x = 176

        x = 4

If the manager sold 15 corn dogs, how would this quantity be represented in her table?

Answers

Answer:

Not enough information.

Step-by-step explanation:

What kind of table do you want.

Answer:

I had the same question, it would be -15 because in the video on the assignment it says the answers are the opposite.

Step-by-step explanation:

What is the greatest possible value for STATS in the cryptarithm shown here given that V = 1? [Different letters represent different digits, and no leading digit can equal 0.]

Answers

Answer:

Step-by-step explanation:

Where would it go I know how to do X axis but not Y

Answers

Answer: (-1,2) and (2,2) Make sure to see explanation!

Step-by-step explanation:

Well you need to remember the Y reflection rule!

To reflect over the Y axis you must do this:

Take the points in this case

(1,2) and (-2,2)

And you need to use the equation (x,y) --> (-x,y)

So the new points you NEED TO GRAPH ARE

(-1,2) and (2,2)

Hope this helped!

Answer: (-1,2) and (2,2)

Step-by-step explanation:

reflection over the y axis, take the point (x,y) and change the sign of the X-value (-x,y). When You reflect over the y-axis, the y remains the same.

point (1,2) would become (-1,2) reflected over the Y

and (-2,2) would become (2,2)

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