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
kupik [55]
3 years ago
6

Combine the like terms to create an equivalent expression: 5n + 6 +(-7n) - 9

Mathematics
1 answer:
wel3 years ago
5 0

Answer:

-2n - 3

Step-by-step explanation:

5n + 6 + (-7n) - 9

5n + 6 - 7n - 9

5n - 7n + 6 - 9

-2n - 3

You might be interested in
Solve 4x - c=k for x
kumpel [21]

Answer:

x=k/4+c/4

Step-by-step explanation:

4x-c=k

4x=k+c

x=k/4+c/4

8 0
3 years ago
Read 2 more answers
10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like
ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\  \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\  \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\  \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}

Now, we calculate the minimum value of the sample size as follows:

\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\  \\ \text{ We replacing:} \\  \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\  \\ \:n=103.2858\cong104 \end{gathered}

The minimum sample size needed is 104

3 0
1 year ago
System A:x=3y=-9 2x=y=4 system B: 3x+4y=-9 2x+y=4 how can we get system b from system A? Are the systems Equivalent? TEST NEED H
Nadusha1986 [10]

Answer:

I need point

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
6,500 acres of a 41,000 acre forest burned in a fire. what percentage of forest was damaged?​
Tems11 [23]

Answer:

15.85%

Step-by-step explanation:

Given:

Acres damaged (burned) = 6,500 acres

Acres in total forest = 41,000 acres

Hence the amount of damaged forest as a fraction of the total forest,

= \frac{6500}{41000} = \frac{13}{82}

expressed as percentage = \frac{13}{82} x 100% = 15.85%

8 0
3 years ago
A quality control inspector tested 235 CDs and found 8 defective
antiseptic1488 [7]

Answer:

235 C D s =

8 =

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her
    14·2 answers
  • What is the percentage of 56 out of 70
    14·2 answers
  • The sum of three integers is 189. The first integer is 28 less than the second. The second integer is 21 less than the sum of th
    12·1 answer
  • Two numbers are of the ratio 3:5. If their difference is 18, find the numbers.​
    13·1 answer
  • The fraction 12/20 express in its simplest form is:
    14·2 answers
  • Help pls I need to study for a quiz
    5·2 answers
  • Please give me the correct answer.Only answer if you're very good at math.Please don't put a link to a website.Please use the Py
    12·1 answer
  • 2.
    5·2 answers
  • Please help me with this question…. I mnot getting it…..best answer with step by step explanation will get brainliest answer.
    10·1 answer
  • How do you get the answer to 1+1?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!