142,664 results

Simplify Exponents ba*(2ba4)-3

### Math

At Jefferson School, both 6th grade & 7th grade classes take a math test. The average score for the 6th grade is 80 and for the 7th grade is 90. If there are twice as many students, in the 7th grade as there is in the 6th grade, what is the average test score for both grades ...

Keeping the numbers in exact order, add perentheses, exponents, multiplication, subtraction, divison and addition to make this expression equal 100. 3,5,6,2,54, and 5. Thank you!

### Math

How many 7th grade students are expected to move by the end of the year? If 12 students actually moved, did more or fewer 7th-grade students move than expected? Justify your answer. 6th-grade # of students: 250 % moves: 2% 7th-grade # of students 200 % moves: 4% 8th-grade # of...

I'm not sure how to answer this: 3. THe 7th grade wants to have a back-up representative just in case the first teacher is absent. Based on the same scenario as #2, if a math teacher was chosen to be the 7th grade representative, what is the probablility that the back-up drawn...

im studying exponents. 50 is my result number How did I get using exponents

### help

can someone help me with the pythagorean theorem? VERY HARD IM IN 7TH GRADE AND THIS IS SOME 7TH GRADE MATH HOMEWORK THAT I NEED HELP WITH!!!!!!!!!!!

Represent each expression using positive exponents. 2. E(to the negative fourth power)f Would it be 1/e to the 4th power f?

My friend is in the 7th grade and broke his wrist so he cannot type. Wat is the square root of pi.He said he knows pi=3.14 but he doesn't know how to work it out. He said thanks.

I hope this makes sense, but my teacher said he wants all exponents in the prime factorization, the example he gave was, 4^2 he wants 2^4 Is there a simple way to figure it out? for example, i'm trying to figure out 10^4.

I was wondering if there were any sample placement tests that I could give to my son who is currently in 7th grade homeschool.

I just wanna know anyone who's been in 7th grade what do you learn in science mostly throughout the year??

i need help on Chemistry and i am in 7th grade i don't know how to do some problems and i would like to know how to translate statements into equation form?

Can you check these? 1. Olivia typed 2 pages in 15 minutes. Write an equation relating the number of minutes m to the number of pages typed. How long will it take her to type 10 pages at this rate? Ans: 15/2 = 7.5 = 7.5 * 10 = 75 minutes 2. If the ratio of Type O to non-Type O...

### Patterns and rules unit test 7th grade

I go to connection acdeamy and I am in the 7th grade regular math Mrs. Janus I just need some help with this test Find the next three terms of the sequence -2,-12,-72,-432... A. -1,728,-6,912,-27,648

Hi im a 7th grader and there is alot of book reports and homework in the 7th grade i really don't have time to do all that because im in extra cericular activities and i need to be passing all of my classes to be in my activities can somebody please help me by telling me a ...

I'm actually in 7th grade, but I'm doing 8th grade pre-algebra, but anyway, here: I'm supposed to simplify these four problems and I don't really understand how: 28s (15 power) ____ 42s (12 power) 4m+(n[7th power]m) 63m(5 power)n(6 power) ______________________ 27mn 3a·4a(4 ...

### Math

At one afterschool event, of the students were 8th graders and the rest were 7th graders. Of the students who were in 7th grade, the ratio of boys to girls was 3:5. What percent of all the students at the afterschool event were boys who are in the 7th grade? Help plz

Please. I need a list of Non-fiction books recommended for 6th and 7th grade readers. Thank you and have a nice day. God bless! <3

### what can i compare middle school to?

what can i compare middle school to? (use in metaphor), based on 6th, 7th, and 8th grade. for example playing monopoly 6th grade - buying properties, 7th grade- adjusting to the game, 8th grade - stress over money

### English Expression

What grade/year are you in? I'm in the first grade in middle school. I'm a first grader in middle school. I'm in the 7th grade. I'm a 7th grader. ----------------------- Are the answers all acceptable? Which one is commonly used? Can we use both 'grade' and 'year'?

### 7th Grade x y input output tables

i need help with x and y input output tables for 7th grade i don't understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!

I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen to represent all three...

### Math

How do you solve this equation; There are 128 7th graders at Mark's school, if there are 16 more girls than boys, how many 7th grade boys are there?

### Math

3) Explain how the laws of exponents work with rational exponents and give at least one example of an expression containing rational exponents... Please help.. I can't find the answer to this anywhere..

### Math

A fertilizer covers 5/8 square foot in 1/4 hour. i don't understand how to work out this math problem. By the way i'm in 6th grade but technically doing advanced math so i'm doing 7th grade math. I don't know how to do this

can you just give me a math riddle that's understandable to 7 th grade

Okay, so what are the axiom names? (honors math) Should this go in the 8th grade place? Oh well...

There are 150 students in 7th grade. After signing up for electives for next year, the counselor posted the following data: Art - 65 students Band - 70 students Theatre - 50 students Not all students signed up for an elective. Display this data using Venn Diagrams. I do not ...

I am in 6th grade and i am haveing trouble with statistics and how to memorize them!!! How can i do this???? Is there a special way???

### Physical Science

Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration calculation and velocity, time, ...

### english

- Computers - English - Foreign Languages - Health - Home Economics - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten - Elementary School - 1st Grade - 2nd Grade - 3rd Grade - 4th Grade - 5th Grade - 6th Grade - 7th Grade - ...

Why is it important to understand rational exponents?

? reads,"7th place driver had a time that was 18.5 min slower thatn the driver ahead of him(2hr 43min 7sec), what was his time in hrs, min & sec.? What was the diff. btwn 1st and 7th? Calculate the winner's time in hrs. only(answer correct to 3 decimal places). Winners time: ...

I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th power. ...

I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th power. ...

I need to see a completed example of input/output patterns at the 7th grade level. Thanks,

### Math

Which of the following statements is not true regarding operations with exponents? A.)To divide powers with the same base, subtract the exponents. B.)To subtract powers with the same base, divide the exponents. C.)To multiply powers with the same base, add the exponents. D.)To...

Why is it important to understand rational exponents? How does it work with radicals?

### Math

When you are adding variable with exponents, do you add the exponents too? What would ab2 + 2ab2 =

### math

expressions with possitive and negative exponents. how do u leave no exponents in the denominator?

### Math: Rational Exponents

Use exponents to write the prime factors of 32 and 81, I have no idea???Help

### Math

Use the rules of exponents to simplify each exponential expression. Your result cannot contain any negative exponents. Thank you for your help. (2m^2)^3 (4x^2y^4z^7)^0

### math

Use the properties of exponents to rewrite each expression so that it contains only positive exponents and simplify. (x^-1y^-2/x^-2y^3)^2

7.5*8.4

34/6=(2x+1)/3

1. 36/7= _ _ 2. -8-m>-19

12 - 5 3/10

6 11/12 - 4 5/12

40/n = 28/22 what is n?

2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?

7ã3 / ã 5

8/9 \1/4

-6(2r-4)

(-13) + (-1)

1. 5/6 + 4/9 1/2 9/18 1 5/18 1 1/2

Let me try writing it again... (X/2)^3*(X/2)^4 --------------------- (X/2^3)^2 I keep getting X/2^6, but the book says X/2^5. How do you get X/2^5????

### math

write an exponents using single exponents of x^2 y . xy^2

### Logic

Gene will teach 7th grade of Gene will teach 8th grade. If Gene teaches 7th grade, he will be assigned to the Sunset Road School. Gene will carpool with Chris if he is assigned to the Sunset Road School. If Gene teaches *th grade he will have his daughter Briana in his class. ...

### Marh

If 1/3 of the math team are 7th graders and 1/4 of the math team are boys, how many are 7th grade boys? 1/4 of 1/3 = 1/12

indicate the measure and the measure unit. 1. there are four windows in the room each 36 inches wide. 2. luisa received a gift of \$100 from a relative when she graduated from 8th grade.

### math

I solved (3x10^6)(2x10^5). My teacher said we were supposed to add the exponents. Do we still foil when we use exponents? Thanks, Kerry.

### math

Use the properties of exponents to rewrite each expression so that it contains only positive exponents and simplify the result. The answer is suppose to be 1/9. thank you (b^-1/3a^-1)(3a/b)^-1

What is 4/2/5 as a decimal?

How do I figure: ?/8 = 15/? = 24/32

7div by (-1/3)=

78 mi on 3 gal

Does 1/3 + 5/9 - 5/12 = 5/9 + 5/12 - 1/3 ? Explain Thank you :p

what is an equation?

what is an equation?

1/15 in percent

30 = 12d

What is the difference? |-9| - |13| =? A)-22 B)-4 C)4 D)22

### 7th grade math help quick

11/12 + (-2/3) = ?

1 5/6 divided by 5 2/5

-2.4/5 1/3 -2.4/5.333 =-0.45?????

### Math

^=exponents /= divide So I am not sure how to do this. It is an example in my book but I still don't get it. Can you work through ti so I can do my real work. (-1^2+-1^-2)^-1 (-1^2+-1^-2)^-1 = First, do work within the parentheses. -1*-1 = 1 and -1-2 = 1/(-12) = [1+(1/(-12...

HOW DO I STUDY BETTER? BECAUSE MY TEST GRADES ARE BAD, SO THEY ARE PULLING MY AVERAGE GRADE DOWN.

### phys

The speed of ocean waves depends on their wavelength Î» (in meters) and the gravitational field strength g (in m/sË†2) in this way: V=KÎ»Ë†p GË†q Where K is a dimentionless constant. Find the value of the exponents p and q. Consider the dimensions. Left side, m/s...

PV/nR=T find the value for n

10-3y=1 find the value of y

How do you convert 5/16 to a decimal??

find each product 1 3/8 .2 2/3

8(2x-3)- 6x Show work

i need a picture for X+2Y=13

Problem: c=45.00 (m) M=8 Do I times 45 by 8?

"x" is the variable 11x=8x-6

"x" is the variable 11x=8x-6

what is angle of rotation?

order of operations 11, 10, 15, 20, 3 = 6

how do i subtract intergers

9.8c + 8d - 4.6c + 2.9d simpilfy the expression

what is a supplementary angle?

### Math

what is y+19=9 plz help me i don't understand this im in 7th grade >.>