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
melisa1 [442]
3 years ago
12

Evaluate 9u-2z if u = 7 and z =-1

Mathematics
1 answer:
klasskru [66]3 years ago
8 0
To solve problems where we already know the value of the variables, we must simply substitute in that value for every presence of the variable.

=9u-2z
=9(7)-2(-1)
=63-⁻2
=65

Using the math above, we can see that this equation equals 65.
You might be interested in
Two gongs strike at intervals of 24 and 40minutes respectively. At twist time will they strike together again if they start simu
solmaris [256]

Answer:

They will sound together at 2pm

Step-by-step explanation:

Now, the first thing we need to calculate is , in how many minutes will the two gongs strike together.

To be able to do this, we need to calculate the least common multiple of the two numbers 24 and 40

The lowest common multiple between both is 120

This means that the two gongs will sound together at exactly 120 minutes

Now since 1 hour is 60 minutes, this means that 120 minutes will be = 120/60 = 2 hours

Since they both sounded together at 12 noon and the next time they will be sounding is next two hours, their sounding time will thus be 12 noon + 2 hours = 2 pm

8 0
4 years ago
What is thanswer to this
Ber [7]
I can’t see it , it’s to blurry dude
6 0
4 years ago
Read 2 more answers
8600⋅0.0395x=21000<br> ok this time there is an x<br> what is x
11Alexandr11 [23.1K]

Answer: x = 61.81925228

Step-by-step explanation:

6 0
2 years ago
+{-x2y+[-(x2y-2xy2+y2)+(-xy2-3y2+x2y)]-(10y2-x2y)}
Kay [80]

Answer:

3xy² -  14y²      

Step-by-step explanation:

I hope that this is the problem

   - x²y + [ - (x²y - 2xy² + y²) + (xy² - 3y² + x²y)] - (10y² - x²y)

= - x²y + [ - x²y + 2xy² - y² + xy² - 3y² + x²y] - 10y² + x²y

Now combine like terms in the [  ].

= - x²y  + [ -x²y + x²y + 2xy² + xy² - y² - 3y² ] - 10y² + x²y

= - x²y  + [ 0 + 3xy² - 4y²] - 10y² + x²y

= - x²y + 3xy² - 4y² -10y² + x²y                      Now combine like terms

=   (-x²y + x²y) + 3xy² + (-4y² - 10y²)

=       0 + 3xy² - 14y²

=  3xy² -  14y²       or    y²(3x - 14)

6 0
3 years ago
Simply this plz ո • ո3
anzhelika [568]

Answer:

Answer is n^4

Step-by-step explanation:

You add the exponent when they are multiplying and have the same base

4 0
3 years ago
Read 2 more answers
Other questions:
  • Sam and Annika ride their bike to school. Sam rides his bike (k) kilometers. Annika rides her bike 2 less than 4 times as many k
    14·1 answer
  • Which are partial products for 89 × 25? There are two answers.
    9·1 answer
  • Find HCF and LCF of 377, 145and so 667​
    6·1 answer
  • Tyler buys 2 pairs of shoes every year. Which of the following expressions shows the total number of shoes he buys in z years? 2
    9·2 answers
  • 60 POINTS PLEASE HELP!!!What is the transformation of A(6, 4) when dilated by a scale factor of ½, using the origin as the cente
    11·1 answer
  • What is 6 x2 simplified?
    8·2 answers
  • What is the area of this tile 4 in long by 1 in short?
    11·1 answer
  • Pleaseeeee help on this one
    7·1 answer
  • Choose the correct answer for each question: What was the eastern border of the Louisiana Territory? What was at the western edg
    11·2 answers
  • 13 Use the given angle to find the missing angles 109 pleaseee before Monday ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!