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
Romashka [77]
3 years ago
7

Alexandra has 78 emails in her box. she deletes 47 emails. How many emails are left in her box? Draw jumps and label the number

line to show your thinking.
I know the answer is 78-47=31 ( but I am having trouble with the jump labeling I know you can draw the line for the bar but can you just write the numbers in a row and I can line jump from there please help asap thanks)

< --------------------------------78--------> this is the jump and label to get the answer
Mathematics
2 answers:
labwork [276]3 years ago
7 0
There are 31 emails left in her box. Hope this helps!! :)
nadezda [96]3 years ago
7 0
There are 31 left in the mailbox
You might be interested in
Find the x-coordinates of any relative extrema and inflection point(s) for the function f(x)= 6x^1/3 + 3x^4/3. You must justify
irina [24]

Answer:

x-coordinates of relative extrema = \frac{-1}{2}

x-coordinates of the inflexion points are 0, 1

Step-by-step explanation:

f(x)=6x^{\frac{1}{3}}+3x^{\frac{4}{3}}

Differentiate with respect to x

f'(x)=6\left ( \frac{1}{3} \right )x^{\frac{-2}{3}}+3\left ( \frac{4}{3} \right )x^{\frac{1}{3}}=\frac{2}{x^{\frac{2}{3}}}+4x^{\frac{1}{3}}

f'(x)=0\Rightarrow \frac{2}{x^{\frac{2}{3}}}+4x^{\frac{1}{3}}=0\Rightarrow x=\frac{-1}{2}

Differentiate f'(x) with respect to x

f''(x)=2\left ( \frac{-2}{3} \right )x^{\frac{-5}{3}}+\frac{4}{3}x^{\frac{-2}{3}}=\frac{-4x^{\frac{2}{3}}+4x^{\frac{5}{3}}}{3x^{\frac{2}{3}}x^{\frac{5}{3}}}\\f''(x)=0\Rightarrow \frac{-4x^{\frac{2}{3}}+4x^{\frac{5}{3}}}{3x^{\frac{2}{3}}x^{\frac{5}{3}}}=0\Rightarrow x=1

At x = \frac{-1}{2},

f''\left ( \frac{-1}{2} \right )=\frac{4\left ( -1+4\left ( \frac{-1}{2} \right ) \right )}{3\left ( \frac{-1}{2} \right )^{\frac{5}{3}}}>0

We know that if f''(a)>0 then x = a is a point of minima.

So, x=\frac{-1}{2} is a point of minima.

For inflexion points:

Inflexion points are the points at which f''(x) = 0 or f''(x) is not defined.

So, x-coordinates of the inflexion points are 0, 1

7 0
3 years ago
Pls help
denis-greek [22]

Answer:

C I think

Step-by-step explanation:

Hehehehehehe

7 0
3 years ago
Help me please ..........................................................
ale4655 [162]
It would be the last one to add up to 180 witch is a triangle or supplementary
<span />
7 0
3 years ago
Solve the simultaneous equations<br> 5y−4x=8<br> y+x=7<br><br> x= ?<br> y= ?
inna [77]

Answer:

x=3 y=4

Step-by-step explanation:

5(4)=20

4(3)= 12

20-12=8

4+3=7

4 0
3 years ago
Read 2 more answers
Free p0ints first come first serve
Ira Lisetskai [31]

Answer:

Tyty :)

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Jesses team won the basketball game, scoring 96 points. The other team only scored 71 points. Jesse scores 16 of those points, a
    8·1 answer
  • Which equation represents grants path? <br>A. y=2-4x<br>B. y=4-x/2<br>C. y=6-x/4<br>D. y=8-2x​
    11·2 answers
  • HELP PLEASEEEE!!! First correct answer gets brainliest! ​
    8·1 answer
  • 1. Add or Subtract. Show your work
    15·1 answer
  • The equation of a circle is (x - 3)^2 + (y - 1)^2 = 64. Find the equation of the circle after it is shifted 2 units to the right
    7·1 answer
  • without actually calculating the cubes find the value of each of the following (-28)^3+(12)^3+(16)^3 ​
    9·1 answer
  • About what percentage of the states (out of 51) seem to have close to 800 licensed drivers per 1000 residents?
    15·1 answer
  • HELP HELP HELPPPP<br> ILL GIVE BRAINLIEST HELPPPPPPPPP<br> 100 POINTSSS
    12·2 answers
  • The median, range and mode of 8,7,12,7,11,10,7,12
    12·1 answer
  • Pleaseee HELPPPPP!!! WILL GIVE 40 points!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!