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
Rudik [331]
3 years ago
11

Subtract the sum of -11ab and -23ab from the sum of -19ab and 7ab

Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0
The sum of -19ab and 7ab = -19ab + 7ab = -12ab
the sum of -11ab and -23ab = -11ab + (-23ab) = - 34ab

So
<span>Subtract the sum of -11ab and -23ab from the sum of -19ab and 7ab:

</span> (-12ab) - (-34ab) = -12ab + 34ab = 22ab

Answer
22ab
You might be interested in
At 2:00 PM a car's speedometer reads 30 mi/h. At 2:10 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:10 the acce
Daniel [21]

Answer: If we define 2:00pm as our 0 in time; then:

at t= 0. the velocity is 30 mi/h.

then at t = 10m (or 1/6 hours) the velocity is 50mi/h

Then, if we think in the "mean acceleration" as the slope between the two velocities, we can find the slope as:

a= (y2 - y1)/(x2 - x1) = (50 mi/h - 30 mi/h)/(1/6h - 0h) = 20*6mi/(h*h) = 120mi/h^{2}

Now, this is the slope of the mean acceleration between t= 0h and t = 1/6h, then we can use the mean value theorem; who says that if F is a differentiable function on the interval (a,b), then exist at least one point c between a and b where F'(c) = (F(b) - F(a))/(b - a)

So if v is differentiable, then there is a time T between 0h and 1/6h where v(T) = 120mi/h^{2}

5 0
3 years ago
Drag and drop each number to its correct position on the number line.
Stels [109]

Answer:

-⅜ is between -1 and 0

⅞ is between 0 and 1

-2½ is between -3 and -2 ( in the mid )

2½ is between 2 and 3 ( in the mid )

4 0
2 years ago
Aimee has $10.00 to spend on school supplies. The following shows the price of each item in the school store. No sales tax is ch
Rainbow [258]

Answer:

17. yes - 9.95

18. yes - 9.45

19. no - 10.01

20. no 10.01

21. yes 9.86

4 0
2 years ago
Infections seldom start with a single bacterium. Suppose that you cut yourself on a rusty nail that puts 25
Soloha48 [4]

Answer: There would be 12,000 bacteria 8 hours after the initial infection.

Step-by-step explanation: You start with 25 cells and if they divide every 15 minutes, 25 multiplied by 15 gets you 375 cells every quarter of an hour. Then if you multiply that by the 32 quarter hours, you get 12,000 cells. To check that you can also multiply 25 by 15, still 375, then 375 by 4 for each quarter of the hour, then that gets you 1,500 cells every hour. If you multiply that by 8 for the 8 hours they have time to divide, you still get 12,000 cells.

I hope this helps!

3 0
3 years ago
Fifteen more than half a number is 9
rusak2 [61]

For this case, the first thing we must do is define a variable.

We have then:

x: unknown number

We now write the equation that models the problem:

(\frac{1}{2}) x + 15 = 9

From here, we clear the value of x.

We multiply both sides of the equation by 2:

(\frac{2}{2}) x + 2 (15) = 2 (9)\\x + 30 = 18

We subtract 30 on both sides of the equation:

x + 30 - 30 = 18 - 30\\x = -12

Answer:

The value of the unknown number is given by:

x = -12

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the slope of the line that contains these points (-2,5) (-4,11)
    5·2 answers
  • Sasha Story's salary for a four week period in July was $5,824. What was her weekly salary?
    14·2 answers
  • I need help with this question plz
    9·2 answers
  • What's the area of this shape? Please answer. :) Tysm
    8·1 answer
  • What is equivalent to (x+1)^2
    14·1 answer
  • How do I solve this? Like what are the steps to solving this question
    12·2 answers
  • What is the missing step in sovling the inequality 5-8x &lt; 2x + 3?​
    5·1 answer
  • If x&gt;0, what values of c and d make the equations true?
    7·2 answers
  • Simplify -3(3x^2+2y-5)-2(x^2-3x)
    15·2 answers
  • A department store buys 200 shirts at a cost of ​$1,400 and sells them at a selling price of ​$10 each. Find the percent markup.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!