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
alexdok [17]
4 years ago
14

What is wrong with this question if K =4 then 3k+5=39

Mathematics
2 answers:
Virty [35]4 years ago
7 0
3k+5=-39

3(4)+5=-39
12+5=-39
17=-39

well 17 doesnt equal -39. the variable provided is wrong!

3k+5=-39
3k = -44
k = -14.66666667

so .... k should have been solved for instead of just plugging in a number!
kotegsom [21]4 years ago
4 0
You can tell it's wrong by plugging in 4 for K like so:
3(4) + 5 = 39

12 + 5 = 39

17 = 39

By looking at this you can tell it's false because 17 is not equal to 39.


I hope this helps! Feel free to let me know if you have any questions!

- mathwizzard3

You might be interested in
Here is the question the whole question is in the image​
lawyer [7]

Answer:

The change for the input would be 1, and the change for the output would be 0.35. The rate of change should be 0.35 also.

Step-by-step explanation:

7 0
3 years ago
Distribute (2m-5m)(-5)
Reika [66]

First Method (Distributive Property)

(2m - 5m) (-5)

Rearrange the equation to make it easier.

(-5) (2m - 5m)

In distributive property, it's all about multiplying. The -5 goes to the 2m and the 5m. Like this: (-5 • 2m) - (-5 • 5m).

-10m + 25m

15m

Second Method

(2m - 5m) (-5)

Since 2m and 5m have the same variable, we can subtract them.

(-3m) (-5)

Multiply.

15m

15m is your answer. I hope this helps!

6 0
3 years ago
Also need help for this question!! Someone please help
SVEN [57.7K]
Given profit, 
p(t)=0.4t^2+5.3t-8
After the first year, t=1
p(1)=0.4*(1^2)+5.3*1-8=-2.3
Answer: the annual loss of the coffee shop after the first year (i.e. the second year) is $2,300.
7 0
3 years ago
If the area of Bianca’s rectangular backyard patio is represented by the expression x2−18x + 81, and the length of the patio is
frosja888 [35]

Answer:

a square backyard with width (x - 9)

Step-by-step explanation:

x²−18x + 81 = x² - (2 x 9) x + 9² = (x - 9)²

width = area / length = (x - 9)² / (x - 9) = x - 9

Length = width

This is a square backyard

4 0
3 years ago
Is it legal to travel down a road in reverse, as long as your following the direction of the traffic?
raketka [301]

technically yes but please do not.

4 0
3 years ago
Other questions:
  • How do you do this maths I need help please
    6·1 answer
  • I need help on math. ASAP please I am stuck on this homework problem
    8·1 answer
  • Alexis drove 1200 miles in 30 h. What was her rate of travel in miles per hour?
    5·2 answers
  • Write 9 as a fraction with 7 in the denominator
    10·2 answers
  • What is 3/7 divided by 2/3
    14·2 answers
  • Find the value of y.
    15·1 answer
  • NOONE IS HELPING ME, THIS IS FOR A GRADE
    8·2 answers
  • HELP I NEED HELP ASAP
    5·1 answer
  • Finding the<br> Roots/Zeros
    6·1 answer
  • The following is the number of red dresses each student owned.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!