Please help with these three questions! Thank you! (No links! No trolls! Will mark brainliest!)

Please Help With These Three Questions! Thank You! (No Links! No Trolls! Will Mark Brainliest!)

Answers

Answer 1

Answer:

1. 4*10^7

2. 5.1*10^-7

3.9,842,000,000(9.842*10^9)

Answer 2

Answer:

im answering so you can give them brainliest!

Step-by-step explanation:


Related Questions

Write the phrase as an expression. Then evaluate the expression when $y=20.

3 less than the quotient of a number y and 4

Answers

y/4-3 y=20 the answer is 2

Answer:

20/4 -3, which equals 5-3, or 2

Step-by-step explanation:

3 less than= -3

the quotient of a number y and 4, with y being 20= 20/4

Divide: 20/4 = 5

combine the terms, either 5-3 or -3 +5, you'll end up with 2 either way

please help ! i'll give brainliest to the first person who gets it right ! :,>

Answers

Answer:

±16

Step-by-step explanation:

the square root of 256 is positive or negative 16! (if it only lets you put one answer, put positive 16).

Answer:

16

Step-by-step explanation:

16*16=256

6 3/7 minus 1 3/6 equals _?

Answers

6 3/7 - 1 3/6 = 69/14 = 4 13/14 ≅ 4.9285714

Hope this helps.

Answer:

umm

Step-by-step explanation:

Please answer when u can! (asap, pls in 5 or less minutes ;-;) No links pls


​((THE QUESTION INFO) Marina, Cleo, and Paul are buying paper plates for a big cookout. A​ 4-pack of plates sells for​ $0.37 and a​ 48-pack sells for​ $3.84. They each use a different method to decide which option is the best buy. Decide which methods use correct reasoning. Write an equation relating the cost C to the number of plates p for the best option. )


question B. Write the equation for the best​ option, relating the cost C to the number of plates p.

Answers

Answer:

2+2=4

Step-by-step explanation:

solve for x enter the solution from least to greatest (x - 1)^2 - 9 = 0 Lesser x = ___ greater x = ____

Answers

Answer:

X=4 or X=-2

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant   1 • -8 = -8  

Step-2 : Find two factors of  -8  whose sum equals the coefficient of the middle term, which is   -2 .

     -8    +    1    =    -7  

     -4    +    2    =    -2    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -4  and  2  

                    x2 - 4x + 2x - 8

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x-4)

             Add up the last 2 terms, pulling out common factors :

                   2 • (x-4)

Step-5 : Add up the four terms of step 4 :

                   (x+2)  •  (x-4)

            Which is the desired factorization

Equation at the end of step

1

:

 (x + 2) • (x - 4)  = 0  

STEP

2

:

Theory - Roots of a product

2.1    A product of several terms equals zero.  

When a product of two or more terms equals zero, then at least one of the terms must be zero.  

We shall now solve each term = 0 separately  

In other words, we are going to solve as many equations as there are terms in the product  

Any solution of term = 0 solves product = 0 as well.

Solving a Single Variable Equation:

2.2      Solve  :    x+2 = 0  

Subtract  2  from both sides of the equation :  

                     x = -2

Solving a Single Variable Equation:

2.3      Solve  :    x-4 = 0  

Add  4  to both sides of the equation :  

                     x = 4

Supplement : Solving Quadratic Equation Directly

Solving    x2-2x-8  = 0   directly  

Earlier we factored this polynomial by splitting the middle term. let us now solve the equation by Completing The Square and by using the Quadratic Formula

Parabola, Finding the Vertex:

3.1      Find the Vertex of   y = x2-2x-8

Parabolas have a highest or a lowest point called the Vertex .   Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) .   We know this even before plotting  "y"  because the coefficient of the first term, 1 , is positive (greater than zero).  

Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two  x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.  

Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.  

For any parabola,Ax2+Bx+C,the  x -coordinate of the vertex is given by  -B/(2A) . In our case the  x  coordinate is   1.0000  

Plugging into the parabola formula   1.0000  for  x  we can calculate the  y -coordinate :  

 y = 1.0 * 1.00 * 1.00 - 2.0 * 1.00 - 8.0

or   y = -9.000

Parabola, Graphing Vertex and X-Intercepts :

Root plot for :  y = x2-2x-8

Axis of Symmetry (dashed)  {x}={ 1.00}  

Vertex at  {x,y} = { 1.00,-9.00}  

x -Intercepts (Roots) :

Root 1 at  {x,y} = {-2.00, 0.00}  

Root 2 at  {x,y} = { 4.00, 0.00}  

Solve Quadratic Equation by Completing The Square

3.2     Solving   x2-2x-8 = 0 by Completing The Square .

Add  8  to both side of the equation :

  x2-2x = 8

Now the clever bit: Take the coefficient of  x , which is  2 , divide by two, giving  1 , and finally square it giving  1  

Add  1  to both sides of the equation :

 On the right hand side we have :

  8  +  1    or,  (8/1)+(1/1)  

 The common denominator of the two fractions is  1   Adding  (8/1)+(1/1)  gives  9/1  

 So adding to both sides we finally get :

  x2-2x+1 = 9

Adding  1  has completed the left hand side into a perfect square :

  x2-2x+1  =

  (x-1) • (x-1)  =

 (x-1)2

Things which are equal to the same thing are also equal to one another. Since

  x2-2x+1 = 9 and

  x2-2x+1 = (x-1)2

then, according to the law of transitivity,

  (x-1)2 = 9

We'll refer to this Equation as  Eq. #3.2.1  

The Square Root Principle says that When two things are equal, their square roots are equal.

Note that the square root of

  (x-1)2   is

  (x-1)2/2 =

 (x-1)1 =

  x-1

Now, applying the Square Root Principle to  Eq. #3.2.1  we get:

  x-1 = √ 9

Add  1  to both sides to obtain:

  x = 1 + √ 9

Since a square root has two values, one positive and the other negative

  x2 - 2x - 8 = 0

  has two solutions:

 x = 1 + √ 9

  or

 x = 1 - √ 9

Solve Quadratic Equation using the Quadratic Formula

3.3     Solving    x2-2x-8 = 0 by the Quadratic Formula .

According to the Quadratic Formula,  x  , the solution for   Ax2+Bx+C  = 0  , where  A, B  and  C  are numbers, often called coefficients, is given by :

                                     

           - B  ±  √ B2-4AC

 x =   ————————

                     2A

 In our case,  A   =     1

                     B   =    -2

                     C   =   -8

Accordingly,  B2  -  4AC   =

                    4 - (-32) =

                    36

Applying the quadratic formula :

              2 ± √ 36

  x  =    —————

                   2

Can  √ 36 be simplified ?

Yes!   The prime factorization of  36   is

  2•2•3•3  

√ 36   =  √ 2•2•3•3   =2•3•√ 1   =

               ±  6 • √ 1   =

               ±  6

So now we are looking at:

          x  =  ( 2 ± 6) / 2

Two real solutions:

x =(2+√36)/2=1+3= 4.000

or:

x =(2-√36)/2=1-3= -2.000

Answer: X=4 or X= -2

Beth is half as old as Meg. Enter an algebraic expression based on this situation.

The algebraic expression for this is ____________

Answers

Answer:

b = 1/2m

Step-by-step explanation:

Let:

b = beth's agem = meg's age

The prompt tells us that Beth is half as old as Meg. Therefore, mathematically, b = 1/2m.

The answer is b=1/2 m. I know the question was already answered but I need to answer more questions to ask questions lol.

Which expression is equivalent to
5
p
2
+
3
p
2

6
p
? first correct answer gets brainliest pog

Answers

Answer

8p2 - 6p

Explanation
Reorder and gather like terms: (5p2 +3p2)-6p
Collect coefficients for the like terms: (5+3)p2-6p

Answer:
8p2-6p

Answer : The correct answer is 8p2 - 6p

Write the equation of the line that passes through the points (8,−7) and (−9,7). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.

Answers

Answer:

y + 7 = (-14/17)(x - 8)

Step-by-step explanation:

We want the equation of this line in the point-slope form y - k = m(x - h).

We are given two points (8, -7) and (-9, 7), and may arbitrarily choose one of them to serve as the point (h, k) in the point-slope form shown above.  Then the other point is represented by (x, y) in the point slope form shown above:

Let (h, k) be 8, -7) and let (x, y) be (-9, 7).  Then,  y - k = m(x - h) becomes:

7 - (-7) = m(-9 - 8), so that 14 = m(-17), and the slope is thus m = -14/17

The desired equation is then y + 7 = (-14/17)(x - 8) (which is in point-slope form).  

Another way to get this result would be to find m in the usual way:

          rise           14

m = ------------- = --------- = -14/17 (same as before).

           run           -17

plz help me easy 10 points

Answers

Answer

21

Step-by-step explanation:

Find the total cost with sale tax.
Show all your steps ( Works)
Holly has $15 to buy a gift for her brother. She found a stuffed animal that cost $12.50. With 10.1% sales tax added on, what is the sale tax? What is the total cost of the stuffed animal with tax included?

Answers

ANSWER: $13.76

Explanation:

We know the stuffed animal cost $12.50 and we know the sales tax is 10.1%. So we need to find 10.1% of 12.50. In math of means multiplication so it’s

10.1 x 12.50

Multiply like normal to get 1.2625

I’m assuming you round and get 1.26.

Now we know the sales tax and the price of the stuffed animal. But to know what it is after the sales tax we need to add.

1.26 + 12.50 = $13.76
The Answer is $13.76

Rewrite each of the following expressions without using absolute value bars.

a
|x−4| if x>4
b
|x−y| if x c
|3r−15| if r<5

Answers

a  y=x-4 if x>4

b INCOMPLETE

c 3r-15 is r<5

Joe drove 538 miles in 9 hours 15 minutes. What was his average speed per hour? Round to the nearest whole number.

The First-person to answer gets brainliest.

Answers

I’m pretty sure it’s 58mph

Multiplying Integers with Integer Tiles –5(–2) =

Answers

Answer:

-5 x -2 = 10

Step-by-step explanation:

- x - = +

5 x 2 = 10

The answer is 10 because a negative number times a negative number is a positive number

What is not an example of potential energy?

Question 3 options:

A stretched rubber band


A ball sitting high on a shelf


A pendulum at the top of its swing when it briefly stops


A car accelerating down a hill

Answers

Answer:

a car accelerating down a hill

Step-by-step explanation:

because if an object is moving at a speed, then it has kinetic energy because its moving, not potential energy. potential energy is strored energy meaning that it has the potential to move.

A car accelerating down a hill

PLEASE HELP FAST! DUE TODAY AND CANT HAVE A 0!

Answers

Answer:

ok so i think it is 5/9

Step-by-step explanation:

both equal 0.5 in decimal point

Answer:

The last option is correct

Step-by-step explanation:

Eg: i take  -4/9

If your answer id 4/-9 , the negative sign will always go on the top so answer will be -4/9

Thus its similar

Hope you understood

if not I will explain again !

Your welcome !

Will mark brainlest pls dont answer if you don't know! fill in the table by following the rules provided for each backpack

Answers

Basically you multiply each of them: Backpack 2 (2x,2y) and (0,2) it will be (0,4)

Find the sale price and then add tax.

Pete wants to buy a new PlayStation 5 controller that is on sale. The controller cost $70 and is on sale for 40% off. If the sales tax is 10.1% how much will he pay for the controller?

Answers

Answer:

Your answer is $52.2 :)

Step-by-step explanation:

First, we need to find the sale, which is 40% of $70, we can do that by doing this equation: (40% x $70) / 100 = 28.  Now we minus 28 from 70 in this equation: 70 - 28 = 42.  Now we do tax, which is 10.1% of $42.  We can do the same equation, but with the new information, so the new equation is ($42 x %10.1) / 100 which is 4.2042, and since we are talking money, we can make 4.2042, 4.2 (Rounded 0.042 down). Lastly, we add $4.2 (Tax) and $48 (Discounted price) to get $52.2. You're welcome :D

The answer would be 46.24 because 40% off of 70 is 42 and forty two mutiplied by .101 would be 4.24

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:   1. 447

                2. 572

                3. 257

               

Step-by-step explanation:

Find the selling price.

Markup ($) = percent markup (%) x original cost ($)

Selling price ($) = original cost ($) + markup ($)


A local gaming store bought a gaming console for $90. The gaming store sold the console, and the percent markup was 162%. What is the selling price?

The selling price is: $_________

Skip to navigation

Answers

Answer:

$145.80

Step-by-step explanation:

The original cost of the product was $90.  There was a 162% markup.  In order to get the selling price, I like to take away 100 percent and simply add original price+(original price*62%).  After taking away 100%, I am left with 62%.  I then multiply the original cost ($90) by the remaining percent (62%), getting 55.8.  Following the steps that I originally wrote, I now add 90 to 55.8, getting 145.8.

Answer:$145.80

Step-by-step explanation:

Solve for x.

25(x−12)=−234 will name you the brainllest fastest answer

Answers

Answer:

2.64

Step-by-step explanation:

looked it up

Answer:

66/25 or 2.64

Step-by-step explanation:

times 25 and x to get 25x and then 25 and 12 to get -300, put it togather as an equation to get 25x-300= -234. Next move postive 300 to -234 do the math and get 66=25x. last divied 66 and 25 to get 2.64 or in a fraction 66/25

2(3y + 7 + 5) = 196 - 16
what’s the value of y?
And tell me how you know this and why or Y ahahahahahaha

Answers

Answer:

y=60

Step-by-step explanation:

196 - 16 = 180

7 + 5 = 12

12 + 3y = 15y

2 * 15y = 30y

180 ÷ 30 = 60

y = 60

Answer:

y=26

Step-by-step explanation:

Let's solve your equation step-by-step.

2(3y+7+5)=196-16

Step 1: Simplify both sides of the equation.

2(3y+7+5)=196-16

(2)(3y)+(2)(7)+(2)(5)=196+-16 (Distribute)

6y+14+10=196+-16

(6y)+(14+10)=(196=-16) (Combine Like Terms)

6y+24=180

Step 2: Subtract 24 from both sides.

6y+24-24=180-24

6y=156

Step 3: Divide both sides by 6.

6y/6 = 156/6

y=26

will giver brainliest to the person with the most detailed answer. That means tell me how you got ur answer. And the person who answers with the most clear explanation as well. Good luck!! This is due in 8 minutes as well. And pls number ur answers in order so it is clear!!

Answers

Answer:

Step-by-step explanation:

Mr. Quick bought a new computer system. The regular price was $1,580, but he got a 15% discount. How much did he actually pay?

Answers

Answer:

$1343

Step-by-step explanation:

Mr. Quick bought a new computer system. The regular price was $1,580, but he got a 15% discount. How much did he actually pay?

You need to turn 15% into a decimal.

Move the decimal point to the left 2 spaces.

15 ---> 1.5 ---> 0.15

Now multiply 0.15 by $1,580.

0.15 × $1,580

Which is $237.

Now subtract $1580 - $237.

Which is $1343.

Answer:

$1580*15/100=$237that is discount rate.

$1580-237=$1343 actually pay

help me plzzzzzz 5 buck

Answers

Answer:

The unit rate for the first bag is about 2.50 and for the second bag it is about 2.42. The second bag is the better bag because it has a smaller unit rate.

Step-by-step explanation:

Divide the amount of money by the weight of each bag to find the unit rate.

A i do believe

Step-by-step explanation:

7 increased by a number w

An expression is

Answers

an expression for this would be, w + 7
w+7 because it’s increasing w

please help me with problem with clear explanation

Answers

Answer:

this doesn't even make any sense

Step-by-step explanation:

both -5.4 and 5.4 go off the m.f grid

1. •The starting point will be located in quadrant Q
•The finishing point will be located in quadrant S
Explanation: the x and y values determine where the points are located on the graph

2. The starting point is (-5.4, 3) and the checkpoint is (5.4, 3). The difference is they’re both in different quadrants, and one has a negative value, and the other is positive. They are related because they’re all in one race, and the checkpoint will be involved in the race, most likely between the start and finish points, located in quadrant P.

I hope that helps, merry Christmas and happy holidays! :)

write 28 x 32 in distributive property

Answers

Answer: I'm not sure if anyone else has answered but ~ The Answer is 4* 14

Hoped this helped i'm learning the same thing

Step-by-step explanation:

I need help due today

Answers

Answer:

Step-by-step explanation:

y=mx+b       b= y-intercept   y-intercept=where the line crosses the y-axis    m=slope         slope== rise/run or slope formula, m=y2-y1/x2-x1

For example, number 1's slope is 5/3.  On a graph, you would go up 5 (not in block, but in numerical value) and right 3.   The y-intercept is -2.  This is where your line starts on the graph.

sorry, cant help ya there buddy

Two quantities are related, as shown in the table:

x y
2 3
4 4
6 5
8 6
Which equation best represents the relationship?
A. y = 1/2x + 2

B. y = 1/2x + 1

C. y = x + 2

D. y = 2x + 1

Answers

Answer:

B. y = 1/2x + 1

Step-by-step explanation:

y is added up by 1, while it is split 1/2 from x.

hope this helps.

Simplify each expression involving signed numbers.


-7 – 2 =
12 + (-4) =
-8(-6) =

18/-3=

Answers

Answer:

-5 , 8 , 48 , -6

Step-by-step explanation:

-7- -2 = -5

This complies with the rule that 2 negatives make a positive.

12 + (-4) = 8

You just ignore the brackets.

-8(-6) = 48

The -8 next to the bracket with no symbol means you need to multiply, and again 2 negatives make a positive.

18/-3 = -6

As the 18 is not negative, but -3 is, the answer is also a negative because one negative and one positive make a negative!

Hope this helps and have a good day!

-5 8 48 and -6

hope I helped
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