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
Marysya12 [62]
3 years ago
8

What is 6=1–2n+5?????

Mathematics
2 answers:
Ket [755]3 years ago
7 0
6=1-2n+5
    (1+5)
6=6-2n
    (subtract 6 from both sides)
0=-2n
    (divide -2 from both sides
0=n

6 = 1 - 2(0) + 5
grigory [225]3 years ago
4 0
6 = 1 - 2n + 5
6 = 6 - 2n
-2n = 0
n = 0/-2

when 0/x = 0
x/0 = undefined

n = 0

0 is the only solution.

You might be interested in
If I can read 30 paged in a hour. how long will it take for me to read 230 pages?
zvonat [6]
Im guessing 20 hours

6 0
3 years ago
Read 2 more answers
7.) Simplify (6 xr)x7
Crank

Answer:

6xrx7

2

 

Regroup terms.

6x{x}^{7}r6xx7r

3

 

Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}xaxb=xa+b.

6{x}^{1+7}r6x1+7r

4

 

Simplify  1+71+7  to  88.

6{x}^{8}r6x8r

3 0
3 years ago
Janie has $3. She earns $1.20 for each chore she does and can do fractions of chores. She wants to earn enough money to buy a CD
d1i1m1o1n [39]

Answer:

The fraction of chores which Janie wants to earn enough money to buy a CD for $13.50 are 8.75~9 chores

Step-by-step explanation:

Given that Janie has $3. She earns $1.20 for each chore she does and can do fractions of chores. She wants to earn enough money to buy a CD for $13.50.

we have to find the fraction of chores Janie did to earn total of $13.50

Let the fraction of chores is x which Janie wants to earn enough money to buy a CD for $13.50.

Total money=$3+$1.20(fraction of chores)

$13.50=$3+$1.20(x)

$13.50-$3=$1.20(x)

x=8.75~9

Hence, the fraction of chores which Janie wants to earn enough money to buy a CD for $13.50 are 8.75~9 chores

6 0
3 years ago
Read 2 more answers
What is 2x-3y=12 on a graph?
Step2247 [10]
The graph for 2x-3y=12 is

4 0
3 years ago
The bacterial strain Acinetobacter has been tested for its adhesion properties, which is believed to follow a normal distributio
pantera1 [17]

Answer:

a) Alternative hypothesis should be one sided. Because Null and Alternative hypotheses are:

H_{0}: μ=2.66 dyne-cm.

H_{a}: μ<2.66 dyne-cm.

b) the hypothesis that mean adhesion is at least 2.66 dyne-cm is true

Step-by-step explanation:

Let μ be the mean adhesion in dyne-cm.

a)

Null and alternative hypotheses are:

H_{0}: μ=2.66 dyne-cm.

H_{a}: μ<2.66 dyne-cm.

b)

First we need to calculate test statistic and then the p-value of it.

test statistic of sample mean can be calculated as follows:

t=\frac{X-M}{\frac{s}{\sqrt{N} } } where

  • X  is the sample mean
  • M is the mean adhesion assumed under null hypothesis (2.66 dyne-cm)
  • s is the standard deviation known  (0.7 dyne-cm_2)
  • N is the sample size(5)

Sample mean is the average of 2.69, 5.76, 2.67, 1.62 and 4.12 dyne-cm, that is \frac{2.69+5.76+2.67+1.62+4.12}{5} ≈ 3.37

using the numbers we get

t=\frac{3.37-2.66}{\frac{0.7}{\sqrt{5} } } ≈ 2.27

The p-value is ≈ 0.043. Taking significance level as 0.05, we can conlude that sample proportion is significantly higher than 2.66 dyne-cm.

Thus, according to the sample the hypothesis that mean adhesion is at least 2.66  dyne-cm is true

3 0
4 years ago
Other questions:
  • Mary has 36 flower pots. She plants in 2/3 of her flower pot. In how many flower pots does mary plant daisies?
    5·1 answer
  • Tina made a down payment of 1200.00. her monthly payment is 200.00 for 36 months. What is the total cost of the lease if the res
    7·2 answers
  • What are negative exponents<br>​
    11·1 answer
  • Mason has lunch at a restaurant and the cost of his meal is $30. Mason
    14·2 answers
  • Help me out here please
    7·2 answers
  • Find X. round to the nearest tenth. Pls help I’m taking a quiz i’ll give brainliest
    15·1 answer
  • Hellooooooooooooooooooooooooooooooooooo
    11·1 answer
  • 4. A map of an amusement park is shown on a coordinate plane, where each square
    6·1 answer
  • Simplify Simplify 6 - 23 + (-9 + 5) · 2.
    6·1 answer
  • Round 68.09 to 2 Sf please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!