1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Viefleur [7K]
3 years ago
10

Arlene us showing her work in simplifying(−7.9)+8.2−3.4+2.1 identify any error in her work or in her reasoning.

Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0
Keep doing each step manually, and see where it slips up: −7.9+8.2−3.4+2.1=−1 −7.9+8.2+(−3.4)+2.1=−1 −7.9+(−3.4)+8.2+2.1=−1 (−7.9+(−3.4))+(8.2+2.1)=−1 −11.3+10.3=−1

You might be interested in
Which number is an integer? 6 4.2 3/4 5 1/2
stellarik [79]

Answer:

5, 6

Step-by-step explanation :

3 0
3 years ago
Read 2 more answers
If the area of △PQR is A, give the expressions that complete the equation for the measure of ∠R.
Alik [6]

Answer:

I think that you have to find the perimeter of p and q

Step-by-step explanation:

4 0
3 years ago
Differentiate y=x⁴(1-2x⁵)⁶(5-8x³)².​
Liula [17]

Step-by-step explanation:

Let y(x)=f(x)g(x)h(x) where

f(x) = x^4

g(x)= (1 -2x^5)^6

h(x)= (5 - 8x^3)^2

so that

y(x) = x^4(1 -2x^5)^6(5 - 8x^3)^2

Recall that the derivative of the product of functions is

y'(x)=f'(x)g(x)h(x)+f(x)g'(x)h(x)+f(x)g(x)h'(x)

so taking the derivatives of the individual functions, we get

f'(x) = 4x^3

g'(x) = 6(1 - 2x^5)^5(-10x^4)

h'(x) = 2(5 - 8x^3)(-24x^2)

So the derivative of y(x) is given by

y'(x) = 4x^3(1 -2x^5)^6(5 - 8x^3)^2 +  x^4 6(1 -2x^5)^5(-10x^4)(5 - 8x^3)^2 +  x^4(1 -2x^5)^6 2(5 - 8x^3)(-24x^2)

or

y'(x) = 4x^3(1 -2x^5)^6(5 - 8x^3)^2

\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:- 60x^8(1 -2x^5)^5(5 - 8x^3)^2

\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:- 48x^6(1 -2x^5)^6 2(5 - 8x^3)

3 0
2 years ago
What's the slope of line 2?
WARRIOR [948]

Answer:

Step-by-step explanation:

The slope of line 2=\frac{-3-(-3)}{7-5}

                               =0

3 0
2 years ago
Read 2 more answers
15 minutes into decimal
prohojiy [21]

the answer is 0.25

I got this out of mt textbook not to long ago


hope this helped

3 0
3 years ago
Other questions:
  • Six times Jason's collection of books and one-third of Nathan's collection add up to 134 books. One-third of Jason's collection
    5·1 answer
  • A piece of carpet is 8 feet wide and 12 feet long. The carpet needs to be reduced by a scale factor so that the reduced carpet i
    5·1 answer
  • Fred runs 200 metres in 21.2 seconds.
    6·1 answer
  • For the function F(x) = 2x^2-31x-51, where is the function increasing and positive? ( for all X values greater than what number
    11·1 answer
  • Nolan deposited $2300 into a savings account for which interest is compound weekly at a rate of 2.12%.
    14·2 answers
  • Complete the statement.<br> 6.<br> 42 gal = __L<br> min min
    14·2 answers
  • PLEASE HELP! <br><br>Record the lengths of the sides of ΔABC and ΔADE.<br><br>I would appreciate it.
    15·1 answer
  • B<br> C<br> height<br> A<br> Choose 1 answer:<br> A<br> B
    5·1 answer
  • My last one I will be getting more tomorrow have a merry Christmas my next on is only gonna be 32 points have a good day :)
    7·1 answer
  • HELP NOW PLEASE!!<br> answer choices-<br><br> 370mm^2<br> 370mm^3<br> 270mm^3<br> 170mm^2
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!