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
Daniel [21]
3 years ago
10

Help please solve for the given variable -8 (7k - 5) + 7(7k - 7) = 1 - 5k - k - 7

Mathematics
1 answer:
cluponka [151]3 years ago
8 0
- 8(7k-5) + 7(7k-7) = 1 - 5k - k - 7
- 56k + 40 + 49k - 49 = 1 - 6k - 7
13k = 3
k = 3/13

i am a mathematics teacher. if anything to ask please pm me
You might be interested in
Need help <br> Choices<br> 4<br> 3<br> 2<br> 1
-Dominant- [34]

Answer:

1

Step-by-step explanation:

The amplitude is the maximum distance away from the middle of the wave. Here we can see that the middle of the wave is the x axis and the farthest point (largest difference between the y coordinate of the x-axis, or the line y = 0, and the wave) is 1 unit away.

4 0
3 years ago
Read 2 more answers
/viewform?hr submission=Chclk4feKBIQ.
Gennadij [26K]

Answer:

c) .22

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this question:

\sigma = 2.5, n = 500

Then

M = z*\frac{\sigma}{\sqrt{n}}

M = 1.96*\frac{2.5}{\sqrt{500}}

M = 0.22

5 0
3 years ago
What is the correct answer?
babunello [35]

Answer:

Image B shows a reflection.

6 0
3 years ago
Read 2 more answers
What are the answers plz help me
Serga [27]

For number 3 it would be |-10| and |10|.

Number 5a is supposed to <, because -1 is greater than -7 when you look at the line graph. The same goes for 5b. 5d is >, because 0 is always greater than -1 and it shows that on the line graph that you have there. 5e is =.

I don't see anything else wrong though. Just the ones I listed.

Hope that helps!

8 0
3 years ago
Why is my answer wrong ?
kicyunya [14]
Because it says it’s looking for the ESTIMATED sum. Round your answer to the nearest tenth, and that would be an estimated answer.
4 0
2 years ago
Read 2 more answers
Other questions:
  • 250= 28.5x + 50.5 where x is the number of years after 2000
    15·1 answer
  • What do u call a Frog with a cast on each its back Legs
    10·2 answers
  • 6x - 4 = x + 6
    11·2 answers
  • Polygon ABCDE is congruent to polygon TVSRK. what do angle VSR correspond to _____?
    5·2 answers
  • Solve the equation 5x+2y=14 for y
    6·1 answer
  • Jimmy and Chris went on a 4 day bicycle tour that covered 169 miles of Skyline Drive in Shenandoah National Park. About how many
    9·1 answer
  • write an equation of a line that is perpendicular to the given line and that passes through the given point (4,-6); m=3/5
    12·1 answer
  • A man buys 11 oranges for * 10 and sells 10 oranges for 11. What is his gain percent?​
    13·1 answer
  • Please answer my question please
    5·1 answer
  • “21 x __ = 7” help please
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!