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
Soloha48 [4]
1 year ago
13

-7(n - 2) + 2n = -5(n + 6)

Mathematics
1 answer:
skad [1K]1 year ago
7 0

Given the expression below

-7(n-2)+2n=-5(n+6)

To find n

Open the brackets

\begin{gathered} -7(n-2)+2n=-5(n+6) \\ -7n+14+2n=-5n-30 \\ -7n+2n+14=-5n-30 \\ -5n+14=-5n-30 \end{gathered}

Collect like terms

\begin{gathered} -5n+14=-5n-30 \\ -5n-(-5n)=-30-14 \\ 0\ne-44 \end{gathered}

Since, the sides are not equal,

Hence, there is no solution

You might be interested in
By Using 0,2,4,5,6 Write The Smallest And Greatest Number Of 5 digit​
Otrada [13]

Answer:

Smallest number:20456

Greatest number:65420

5 0
3 years ago
Samples of rejuvenated mitochondria are mutated (defective) in 1% of cases. Suppose 18 samples are studied, and they can be cons
Temka [501]

Probability that no samples are mutated is 0.83, probability that at most one sample is mutated is 0.9812 and probability that more than half the samples are mutated is 0.

Given percentage of rejuvenated mitochondria defective is 1%, and sample size is 18.

Binomial distribution is the probability of exactly x successes on n repeated trials and X can have two outcomes.

P(X=x)=C_{n,x} p^{x}(1-p)^{n-x}

percentage of defective rejuvendated mitochondria=1%

p=0.01

Sample size=18

n=18

a) No samples are mutated

This means P(X=0)=C_{18,0}(0.01)^{0} (0.99)^{18}

=0.83

b) At most one sample is mutated.

P(X<=1)=P(X=0)+P(X=1)

so,

P(X=0)=C_{18,0} (0.01)^{0}  (0.99)^{18}

=0.83

P(X=1)=C_{18,1}(0.01)^{1} (0.99)^{17}=

=0.1512

P(X<=1)=0.83+0.1512

=0.9812

c) More than half the samples are mutated.

P(X>9)=P(X=10)+P(X=11)+P(X=12)+P(X=13)+P(X=14)+P(X=15)+P(X=16)+P(X=17)+P(X=18)

Using two decimals digits precision all will be 0.

Hence Probability that no samples are mutated is 0.83, probability that at most one sample is mutated is 0.9812 and probability that more than half the samples are mutated is 0.

Learn more about probability at brainly.com/question/24756209

#SPJ4

4 0
2 years ago
1 . a sequence in which a fixed amount is added on to get the next term arithmetic sequence 2 . an individual quantity or number
Dmitry [639]
T_n = a_1 + d(n-1)

If a = 4 and d = 3,

T_n = 4+ 3(n-1)

T_n = 4+ 3n-3

T_n = 3n + 1

---------------------------------------------------------------------------------------
Answer: The general equation for the nth term is 3n + 1.
---------------------------------------------------------------------------------------
6 0
3 years ago
Provide me three coordinate points for the following, given the Slope and Y-intercept. 5. Slope = 7/9, Y intercept = 12(give me
madam [21]

Since we have that the slope is m = 7/9 and the y-intercept is b = 12, we can write the equation of the line in slope-intercept form:

\begin{gathered} y=mx+b \\ \Rightarrow y=\frac{7}{9}x+12 \end{gathered}

to find three coordinate points, we can use arbitrary values on x to get the y-coordinate. To make things easier, let's use x = 9, 18 and 27:

\begin{gathered} x=9 \\ \Rightarrow y=\frac{7}{9}(9)+12=7+12=19 \\ x=18 \\ \Rightarrow y=\frac{7}{9}(18)+12=7(2)+12=14+12=26 \\ x=27 \\ \Rightarrow y=\frac{7}{9}(27)+12=7(3)+12=21+12=33 \end{gathered}

therefore, the line with slope m = 7/9 and y-intercept 12 passes through the three points (9,19), (18,26) and (27,33)

8 0
1 year ago
Which expression is equivalent to – 12 + (-4/5) + 31 and includes the correct justification for the equivalence?
anyanavicka [17]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Brian has 5 marbles, Sarah has 9 marbles, Jimi has 4 marbles, and Juan has 6 marbles. They want to redistribute the marbles so t
    12·2 answers
  • What number is halfway between 0 and negative 20
    12·2 answers
  • How many 1/5 cup serving are in 5 cups of pecans
    9·2 answers
  • The point A(-2, 5) is translated 4 units right and 4 units down. Which rule describes the translation? explain please
    5·1 answer
  • Please help me with this question.​
    15·1 answer
  • Solve x^3=27?
    11·2 answers
  • A trencher can be rented for $27 an hour or $145 a day. If you need the trencher for 6 hours, how much money
    13·1 answer
  • write the smallest possible four-digit number using the digits 5 9 3 and 8. PLEASE HELP ASAP!!! WILL MARK BRAINLIEST!!!!
    15·2 answers
  • Mr. Myers wants to join a music club. The 1st choice music club charges a $5 sign-up fee and $1 each song.The superstar music cl
    10·1 answer
  • Please, I need to know for SURE what is the right answer.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!