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
erica [24]
3 years ago
13

Can someone explain step by step to me

Mathematics
1 answer:
skad [1K]3 years ago
7 0
-  2 /15  - (  - 9/10 )
-2/15  + 9/10  multiply fraction #1 by 2 an fraction  #2 by 3 to get 
-4 /30  +27/ 30 = 23/30

You might be interested in
If y= -3x7+2x3+ x, the derivative of y with respect to x is
larisa [96]

Answer:

\frac{dy}{dx} = - 21x^{6} + 6x² + 1

Step-by-step explanation:

Differentiate each term using the power rule

\frac{d}{dx} (ax^{n} ) = nax^{n-1}

Given

y = - 3x^{7} + 2x³ + x , then

\frac{dy}{dx} = (7 × - 3 )x^{6} + (3 × 2)x² + (1 × 1 )x^{0}

    = - 21x^{6} + 6x² + 1

8 0
3 years ago
Form a sequence that has two arithmetic means between 13 and 88.
hichkok12 [17]

Answer:

Correct choice is A

Step-by-step explanation:

For the numbers 13 and 88, find the difference 88-13:

since 88-13=75 and \dfrac{75}{3}=25 (two arithmetic means tells you there will be three intervals), two arithmetic means will be

  • 13+25=38;
  • 38+25=63.

The only correct sequence is 13, 38, 63, 88.


7 0
3 years ago
Read 2 more answers
What does perimeter mean ?
PtichkaEL [24]
The distnace around a two dimensional shape
7 0
3 years ago
Read 2 more answers
Supposed a Visa card had a credit card number of 4162 0012 3456789a where a is the check number what is the check number? A) 0 B
MrMuchimi

Answer:

Option B) 3

Step-by-step explanation:

we have the number

4162 0012 3456 789a

<u><em>Find the value of a (check number)</em></u>

step 1

Multiply every even-position digit (when counted from the right) in the number by two. If the result is a two digit number, then add these digits together to make a single digit

4162 0012 3456 789a

9(2)+7(2)+5(2)+3(2)+1(2)+0(2)+6(2)+4(2)

(18)+(14)+(10)+(6)+(2)+(0)+(12)+(8)

Remember that If the result is a two digit number, then add these digits together to make a single digit

so

(1+8)+(1+4)+(1+0)+(6)+(2)+(0)+(1+2)+(8)

(9)+(5)+(1)+(6)+(2)+(0)+(3)+(8)=34

step 2

add every odd-position digit

4162 00123456 789a

so

8+6+4+2+0+2+1=23

step 3

Adds  the result in step 1 and the result in step 2

34+23=57

The check-digit is what number needs to be added to this total to make the next multiple of 10

In our case, we’d need to add 3 to make 60

therefore

The check number is 3

6 0
4 years ago
Help asap!!!!!!!
azamat

Answer:

C and D

Step-by-step explanation:

So from the equation <em>y = 1.26x + 9.49</em>  we can gather that <em>9.49</em> is an initial value because it has to be added to the number with a variable <em>( 1.26x)</em>

Because <em>1.26</em>  has a variable of <em>x  </em>and x represents a week, we know that the number<em> 1.26 </em>will increases in value depending on how many weeks have passed.

7 0
3 years ago
Other questions:
  • The sugar content of the syrup in canned peaches is normally distributed. A random sample of n = 10 cans yields a sample standar
    14·1 answer
  • Please help I'm really stuck
    5·1 answer
  • What is the scale factor for the set of similar figures? Type in your answer as a decimal.
    10·1 answer
  • PLZZZZ HELP The Lakeview city council is considering two different plans to help reduce the amount of pollution in the city. Pla
    14·1 answer
  • Solve for N:<br> -24 - N = 12<br> Explain how you solved it.
    9·2 answers
  • In the 3D map shown below, what is the depth of the area marked by the red "x"?
    7·2 answers
  • Use the map for exercises 13 to 15​
    14·1 answer
  • A line passes through (0,1) and (-6,4). What is the slope of the line?
    11·1 answer
  • I need help! Thanks!
    8·2 answers
  • The diagram below represents which percent?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!