Mathematics Middle School

Andre was trying to write 7⁴/ 7⁻³ with a single exponent and wrote 7⁴/ 7⁻³ = 7⁴⁻³ = 7¹. Explain to Andre what his mistake was and what the answer should be.

Answers

Answer 1

Answer:

His mistake was that he removed the fraction and instead he used [tex]7^4^-^3 =7^1\\[/tex]. He should've kept the fraction to make the answer right.

Related Questions

Which of the following statements concerning the linear correlation coefficient are true?

I: If the linear correlation coefficient for two variables is zero, then there is no relationship between the variables.
II: If the slope of the regression line is negative, then the linear correlation coefficient is negative.
III: The value of the linear correlation coefficient always lies between –1 and 1.
IV: A linear correlation coefficient of 0.62 suggests a stronger linear relationship than a linear correlation coefficient of –0.82.

I and IV

II and III

I and II

III and IV

Answers

Answer:

I and IV... ig (:

I and IV because i’m very extremely intelligent

Simplify 1/6(12x+24)+4x

Answers

Answer:

6x+4

Step-by-step explanation:

1/6(12x+24)+4x

Multiply 1/6 to all numbers in parentheses.

2x+4+4x

Combine all like terms.

6x+4

200 x 40 x 43 - 54 - 20 + 95 -23 =

If u get this i will give u a crown

Answers

Answer:

343,998

Step-by-step explanation:

Hope this helps!! :))

Answer:

343998

Step-by-step explanation:

200*40*43-54-20+95-23

8000*43-74+72

344000-2

343998

note:

were there parentheses?

Hey, can u help, answer right please. NO LINKS!

Answers

Answer:

1,-4 that would be right then 4 down, 4,-1 would be 4 to the right then one down, -1,4 would be one to the left and four up

Step-by-step explanation:

X is horizontal so if its negative you got left but if its positive you go right

Y axis is vertical so negative is down and positive is up.

I hope this helps you!

If tony made 378$ for 18 hours of work how many hours would he work to make 231$?

Answers

Answer:

11

Step-by-step explanation:

378 / 18 = 21 // Money p/h

231 / 21 = 11

Answer:

11 hours

Step-by-step explanation:

378/18

21

231/21

11

☀︎︎Scientific Notation: 2 problems, please provide an explanation as I missed the lesson on scientific notation :)

Answers

Answer:

Here you go hope this helps

Step-by-step explanation:

1: 7.7 x [tex]10^{8}[/tex]

2: 2.9 x [tex]10^{7}[/tex]

The number of decimal places you move will be the exponent on the

10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.  

7.7 x 10 to the power of 8 and 2.9 to the power of 7 if decimal is left positive right= negative

Helppppp someone answered the first half but I need the second half

Answers

Answer:

i think its 182 dollars

Step-by-step explanation:

$192 i think because if you add both the cost of the bike and helmet you get 192

Please help me! I will give brainliest to best answer!

Answers

Answer:

Both numerator and denominator can be divided by 3.

Explanation:

Find the HCF of 18 and 21. Now, it's 3.

Answer:

3

Step-by-step explanation:

Both of them are in the table of 3 so 18/3 = 6 and 21/3 = 7

So the fraction will be = 6/7

That's your answer

While eating lunch, Vivian ate 65% of the carrots she had in her bag. There were 20 carrots in her bag before she ate any. How many carrots did Vivian have left in her bag after she ate?

Answers

Answer:

Vivian would have 7 carrots left to spare if she ate 65% of the carrots in the bag.

Step-by-step explanation: Since 65% of 20 carrots equals 13 carrots, we would do 20 - 13. In which equals 7 so she has 7 carrots left in fer bag

Equation: 20-x=?

Solution: 20 - 13=7

If I got it wrong, please let me know. And if I got it right, can you please mark me as Brainliest? I'm trying to get pass the "ambitious" rank. Hope this helps you out!

I need this by today

Answers

Answer:

x<=119

Step-by-step explanation:

If it's no greater that the mean is 120 seconds, then the sum of the seconds should be 600. 600-118-129-120-114=119

So x should be less or equal to 119.

Answer is 5:)7yd written by gorgeous wxplaing(

Ski tour sales at an agency went from $12,500 in January to $8,700 in February. Enter the value to make a true statement. Round to the nearest whole percentage.

Answers

Answer:

70%

Step-by-step explanation:

8,700/12,500= 0.696

0.696 x 100 = 69.6%

69.6 estimated = 70%

Help me wit dis question I’ll give you brainliest

Answers

Answer:

6

Step-by-step explanation:

Answer:

She'll find 6 items in 3/4 of an hour.

Step-by-step explanation:

First, change 3/4 to 6/8. Then, do you 6/8 divided by 1/8 to get your answer of 6 items in 3/4 of an hour.

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

since they are all in the same line you only need to use 2 of the points I'm using (1,-1) and (2,1) next you do (x1,y1) and (x2, y2) which would be (1,2) and (-1, 1) then do y2-y1 / x2-x1 which would be 1/2

4,430 divided by 6= tysm whoever answer this question

Answers

Answer:

Step-by-step explanation:

4,430 divided by 6= 738.333333333

Answer:

738.333... = 738 1/3

Step-by-step explanation:

4,430 ÷ 6 = 738.333... = 738 1/3

Use the right triangular prism shown to answer the following questions.



What is the volume of the right triangular prism?

A. 144cm3
B. 168cm2
C. 168cm
D. 168

Answers

Answer:

168cm is the right answer

Step-by-step explanation:

C.168 is your answer

IM GIVING THE BRAINLY OUT NOW THANK YOU FOR THE 100% ON THE QUIZ!

Answers

Answer:

I wasn't here but np

Step-by-step explanation:

.....

Tacara has 4 groups. She puts 1 1/2 cupcakes in each group. What is the total number of cupcakes?

Answers

Answer:

look at the picture...............

3/8. ................

Write an equation of a line that passes through the point (2,0) and is perpendicular to the line y = − 1/2 x + 3.

Answers

Answer:

Step-by-step explanation:

The answer to your problem is y = 2x - 4

Answer 3-12 please, thank you!

Answers

The answer is nine, 9 + 3 = ( equals ) 12 so weather subtract, or adding, you will get the same answer <3

Brandon buys a radio for $48.81 in a state where the sales tax is 7%.
can someone pls help?

Answers

Answer:

$48.81 x 0.07 = 3.4167

$48.81 + $3.4167 = $52.2267

$52.23

Step-by-step explanation:

The shirt cost $48.81, and the sales tax is 7%. First convert the 7% into a decimal and you get 0.07, and then multiply that to the $48.81. You get left with $3.4167 and then add that to the $48.81 to get $52.2267. But, you have to shorten the numbers to make it look like money by simplifing. So the total is $52.23.

Answer:52.17

Step-by-step explanation: You go to your calculator and type 7% × 48.81

it's systems of linear equations btw

Answers

Each child ticket is 7$ and senior is 5$ and is this question from a packet? Bec I found the whole answer key online and I can send it to u if u want

Solve the inequality and graph the solution : k/-1 > 4

Answers

Answer:

k<-4

Step-by-step explanation:

In a video game, a guppy that escapes a net turns into three goldfish. Each goldfish can turn into two betta fish. Each betta fish can turn into two angelfish. Enter and evaluate an expression for the number of angelfish that can be formed from one guppy.

What is an expression?

Answers

an expression is an equation without an equal sign

for example:

equation- 2+2=4

expression- 2+2
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