Question

Evaluate the given expressions. All numbers are approximate. 1328^2-(-7.023)^4/1.037(-2.01)
how do i do this? my teachers book got -2256 over -2.08437 and the answer was 1082.341427 which rounds off to 1080. how did she get the top number to be -2256?

Answer 1

@Euler271

Answer 2

\[1328^2 - \frac{ -7.023^4 }{ 1.037(-2.01) }\]

is this it?

Answer 3

or everything in numerator

Answer 4

it's likethe way you have it but she has it like 1328^2-(-7.023)^4/1.037(-2.01)

Answer 5

i have hw due tomorrow but can't seem to remember this example to do for my hwproblem that is similar

Answer 6

cause evenwhe n i round i still don't get what she got

Answer 7

\[\frac{ 2.08437 }{ 2.08437 } \times 1328^2 - \frac{ 7.023^4 }{ 2.08437 } = \frac{ 3,673,528.87 }{ 2.08437 }\]

this is what i get. a decimal must be out of place

Answer 8

yeah that's what i got at home but looking at what we did inclass shows different. but thanks for your help

Answer 9

i see. it's 1.328^2

answer is:

\[\frac{ -2429.035905 }{ 2.08437 }\]

Answer 10

maybe your teacher rounded up a lot when doing it step by step. im doing it all one step with a calculator.

pretty confident about answer. problem is in the problem itself

Answer 11

ohi have onemore to check it's a bit easier i just want to make sure i solved it right?

Answer 12

ok np

Answer 13

yeah

Answer 14

okay here's my problem...

Answer 15

x-y^-1/x^-1-y for my final answer i got xy-x-y^2/y is this correct?

Answer 16

can you please copy/paste it and add brackets?

Answer 17

can be interpreted so many ways :P

Answer 18

\[x-y^-1/x^-1-y\]

Answer 19

your answer is correct

Answer 20

(xy-x-y^2)/y

Answer 21

\[\frac{ x-y^-1 }{ x^-1-y}\]

Answer 22

okay thanks

Answer 23

oh really. that's not what i read. i read x -[ y^(-1)/x^(-1)] - y

Answer 24

no bracketes in this just dividing the letter and exponent