Mathematics High School

Javier simplified the expression below. Find and
describe the three mistakes he made.
20x
- (203) = (5x®]* _ 5x * to
(5x®)» (20x)} – 20.x* *4

Javier Simplified The Expression Below. Find Anddescribe The Three Mistakes He Made.20x- (203) = (5x]*

Answers

Answer 1

Answer:

Step-by-step explanation:

Javier did not raise the coefficients to the third power

When Javier raised [tex]x[/tex] to the third power, he wrote that [tex](x^1)^3=x^4[/tex], but it equals [tex]x^3[/tex].

In the last step, Javier divided the exponents. He should have used the quotient of powers property and subtracted them.

Related Questions

Solve the equation by finding the common multiple.

three fourths minus two sixths plus seven twenty fourths equals blank

Help!

Answers

My answer~

1253/9997 or 0.12534

My explanation~

3/4 - 2/6 + 7/24

convert into decimals

3/4 = 0.75

2/6 = 0.333

7/24 = 0.29166

then use PEMDAS add first

0.333 + 0.29166 =

0.62466

then subtract

0.75 - 0.62466 =

0.12534

then convert back or leave as is

1253/9997

what you would get when converting back to a fractionhope i helped :P---------------------------------------------------------------

Answer: 11/6 that is it!

-9+n/4=-15 answer????

Answers

Answer:

-2

Step-by-step explanation:

9+n/4= -15

cross multiply

9+4-15=n

13-15=n

n=-2

Plzzzzz helpppppp which equation represents a line which is parallel to the y- axis A. y=x B.y=7 C.x=-8 D.x=1/2y

Answers

Answer:

C.) x=-8

Step-by-step explanation:

The y-axis is a line going up and down. You can think of it as x=0. Parallel means the two line never intersects so x=-8 is the answers because it will never intersects with x=0.

HELP I need to fine the slope-intercept form. Please it’s a timed assignment I only have two try’s and I already used one

Answers

Answer:

5. y = -1/2x + 6

6.  y = 1/2x + 150

7. y = 10x + 20

8. y = 25x

Step-by-step explanation:

Look at the y-intercept and eliminate the answers you dont need.

Then find the slope of each.

Mr. Stip bought a new pair of Jordans and 4 new polo shirts. The price of one pair of jordans were double the amount of one polo shirt. If Mr. Stip spent $510, determine the price he paid for the Jordans.

Answers

9514 1404 393

Answer:

  $170

Step-by-step explanation:

If the price of a pair of Jordans is the same as the price of two shirts, the total purchase has a value equivalent to that of 3 Jordans.

  pair of Jordans = $510/3 = $170

Answer:

$170

Step-by-step explanation:

You have 2 nickels, 11 dimes and 5 quarters in your pocket. What is the ratio of nickels to quarters?

Answers

Answer:

2:5

Step-by-step explanation:

Since there are 2 nickles and 5 quarters there are 2 nickles for every 5 quarters so answer is 2:5

HELP, I am not good at triangles at all

Answers

A, C, D, E, I i think are the answers because for all of the congruent sides there is an angle in the middle. Please please please correct me if Im wrong
C, D, E, and I. I’m in geometry as well

Find the slope and the y-intercept of the graph of y=−45x−2.

Answers

Answer:

Slope: -45

Y-intercept: -2

Step-by-step explanation:

The expression is written in slope-intercept form or y=mx+b.

mx is the slope and b is the slope intercept

If F(x) = 9x, which of the following is the inverse of F(x)?
O A. F'(x) = x-9
OB. F'(x) =
C. F'(x) = x + 9
D. F1(x) = 9

Answers

Answer:

Should be x/9

Step-by-step explanation:

The inverse of the function is F' ( x ) = x/9

What is a function rule?

The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Given data ,

Let the function be represented as F ( x )

Now , the value of F ( x ) is

F ( x ) = 9x  be equation (1)

Now , let the inverse of the function be represented as F' ( x )

where , the values of y are interchanged with x

So , the equation is

y = 9x

when x in interchanged ,

x = 9y

On solving for y , we get

Divide by 9 on both sides , we get

y = x / 9

So , the inverse of the function is F' ( x ) = x/9

Hence , the inverse of the function is F' ( x ) = x/9

To learn more about function rule click :

https://brainly.com/question/3760195

#SPJ7

b =

m =

Equation: y =

Answers

Answer:

..........................................

Step-by-step explanation:

////////////////////////

This right if not help me please.... for brainliest....

Answers

Answer:

Is 5/-1, -5?

Step-by-step explanation:

because if it is you are correct

Two lines that have the same slope and different y intercepts do not intersect at any points.

True

False

Answers

Answer:

True

Step-by-step explanation:

Please help! Thank you if you do!

Answers

Answer:

8/50

5/50

10/50

38/50

45/50

Step-by-step explanation:

L.B. Johnson Middle School held a track and field event during the school year. The chess club sold various drink and snack items for the participants and the audience. Altogether, they sold 486 items that totaled $2673. If the chess club sold each item at the same price, calculate the price of each item. Do not include units ($) in your answer.

Answers

Answer:

Price of each item = 5.50

Step-by-step explanation:

Total items sold = 486

Total price of items sold = $2,673

If the chess club sold each item at the same price,

Price of each item = Total price of items sold / Total items sold

= $2,673 / 486

= $5.50

Price of each item = $5.50

Excluding the units ($) in the answer

Price of each item = 5.50

Write the term that best completes each sentence. 1. The purpose of a(n) is to create an accurate drawing of either a very large or very small object. figures. 2. Two geometric figures that are proportional in size are sides. 3. The "bottom" sides of two similar are​

Answers

Answer:

homeostasis

Step-by-step explanation:

Can y’all help me pls

Answers

Answer:

B

Step-by-step explanation:

Volume = 4/3 pi r^3

r = 15 / 2

r = 7.5

Volume = 4/3 * 3.14 * 7.5^3

Volume = 4.1867 * 421.875

Volume = 1766.3 Cubic inches.

(see image for question)

Answers

Answer:

Hans has done a mistake in the second step.

The correct answer is:

5x^2+13x-6=0

5x^2+15x-2x-6x=0 - 5. -6=-30 -30=15. -2

5x(1+3x)-2x(1+3x)=0

(5x-2x)(1+3x)=0

5-2x=0 1+3x=0

x=5/2 x=-1/3

Leah would like to earn at least $120 per month. She babysits for $5 an hour and works at an ice cream shop for $10 per hour. Let x represent the hours she number of hours she babysits and y represent the hours she works at the ice cream shop.

Answers

This question is incomplete

Complete Question

Leah would like to earn at least $120 per month. She babysits for $5 per hour and works at an ice cream shop for $10 per hour. Leah cannot work more than a total of 20 hours per month. Let x represent the number of hours Leah babysits and let y

represent the number of hours Leah works at the ice cream shop.

Answer:

The inequalities to solve this question is given as:

x + y ≤ 20

5x + 10y ≥ 120

Leah must spend: 16 hours babysitting and 4 hours working at the ice cream shop to earn at least $120

Step-by-step explanation:

Let x represent the hours she number of hours she babysits and y represent the hours she works at the ice cream shop. Leah cannot work more than a total of 20 hours per month.

Hence:

x + y ≤ 20 ...... Equation 1

Leah would like to earn at least $120 per month.

She babysits for $5 an hour and works at an ice cream shop for $10 per hour.

Hence, out Equation is given as:

x × $5 + y × $10 = $120

5x + 10y ≥ 120..... Equation 2

The inequalities to solve this question is given as:

x + y ≤ 20

5x + 10y ≥ 120

To find x and y:

x + y = 20

x = 20 - y

5x + 10y = 120

Substitute: 20 - y for x

5(20 - y) + 10y = 120

100 - 5y + 10y = 120

Collect like terms

- 5y + 10y = 120 - 100

5y = 20

y = 20/5

y = 4 hours

Note:

x = 20 - y

x = 20 - 4

x = 16 hours

Hence:

Leah must spend: 16 hours babysitting and 4 hours working at the ice cream shop to earn at least $120

Given that f(x)=x-9, g(x)=3x^2-2x+5, Find the function

(f+g)(x):_____________

Answers

Answer:

f(g(x)) thats what (fog)(x) is

3(x-9)^2-2(x-9)+5

your answer is 3x^2-56x+266

Step-by-step explanation:

hope it helps

What postulate would you use to solve this triangle
congruence?
SAS
AAS
ASA
SSS

Answers

Im doing something similar to this you wanna help each other out?
SAS
Because there is a congruent side then an angle between the other congruent side

Four triangles are shown

Answers

Answer:

H

Step-by-step explanation:

H )
is the correct answer !

sin 70 in surf form​

Answers

Step-by-step explanation:

Calculate sin(70)°

Determine quadrant:

Since our angle is between 0 and 90 degrees, it is located in Quadrant I In the first quadrant, the values for sin, cos and tan are positive.

Determine angle type:

70 is an acute angle since it is less than 90°

sin(70) = 0.93969262030844

Write sin(70) in terms of cos

Since 70° is less than 90,

we can express this in terms of a cofunction

sin(θ) = cos(90 - θ)

sin(70) = cos(90 - 70)

sin(70) = cos(20)

Solve this -7 3/5 + (-3 2/3)
A-10 1/2
B-11 4/15

C- 4 1/2
D-10 9/15

Answers

9514 1404 393

Answer:

  B  -11 4/15

Step-by-step explanation:

  -7 3/5 -3 2/3 = -(7 3/5 +3 2/3)

  = -((7 +3) +(3/5 +2/3)) = -(10 +9/15 +10/15)*

  = -(10 +19/15) = -(10 +1 4/15)

  = -11 4/15

___

* you know at this point that the correct answer is B. The integer part cannot be 10, but must be 11.

Pls I NED HELP ASAP I ONLY HAVE 10 MINUTES

Answers

Answer:

20

Step-by-step explanation:

when a letter and a number are next to each other u have to multiply, so x is 5 so 3 x 5 is 15. 15 plus 5 is 20 so 20 is ur answwer

Answer:

20

Step-by-step explanation:

x= 20

3x+5 replace x with 5 than do 3x5=15+5=20

Which expression is equivalent to
8(3x+4w)

Answers

Answer:

24x+32w

Step-by-step explanation:

24x+32w is the answer I think

Select all that apply.

Answers

it would be 3 and -3 the two at the bottom

Solve: 2x+28=40
Find out what x is if you can
EXPLAIN WHAT YOU DID FOR BRAINLY

Answers

Answer:

x=6

Step-by-step explanation:

40-28=12

12/2=6

x=6

please mark brainliest, i hope this helps :)

Answer:

x = 6

Step-by-step explanation:

2x + 28 = 40

- 28 -28

2x/2 = 12/2

x = 6

HELPPPPPPPPPPPPPPP mmmmmmmmmmmmmeeeeeeeeeee

Answers

Answer:

Your answer should be B.

Is Letter B both have the same account balance

please solve this equation and show work 4y−70=12y+2

Answers

Answer:

Step-by-step explanation:

Simplifying 4y + -70 = 12y + 2

Add -12y to each side of the equation. -70 + 4y + -12y = 2 + 12y + -12y

Add 70 to each side of the equation. -70 + 70 + -8y = 2 + 70

Divide each side by -8.

So y = -9 is your answer.

Hope I Helped!!!

What is the first step in solving for z in the equation 5z - 4 = 26
O Add 4 to both sides of the equation.
O Subtract 4 from both sides of the equation.
O Multiply both sides of the equation times 5.
O Divide both sides of the equation by 5.

Answers

You would 4 to both sides of the equation

Answer:C

Step-by-step explanation:because we went over this in class

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