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
Elan Coil [88]
2 years ago
8

Y=6-4(2). What is the value of y=6-4x when x=2

Mathematics
1 answer:
Arturiano [62]2 years ago
4 0

Answer:

y = -2

Step-by-step explanation:

You might be interested in
A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. Following are the amounts measured in a
dlinn [17]

Answer:

The mean volume is 12 ounces.

Step-by-step explanation:

In this case we need to test whether the mean volume the machine fills the beverage cans with is 12 ounces or not.

The hypothesis for this test can be defined as:

<em>H₀</em>: The mean volume is 12 ounces. i.e. <em>μ</em> = 12 ounces.

<em>Hₐ</em>: The mean volume is not 12 ounces. i.e. <em>μ</em> ≠ 12 ounces.

As the population standard deviation is not known, we will use a <em>t</em>-test for single mean.

The sample mean and sample standard deviation is:

\bar x=\frac{1}{n}\sum X\\=\frac{1}{8}\times [11.98+12.08+11.87+11.95+11.89+12.01+11.97+12.10]\\=11.98

\text{s} = \sqrt{\dfrac{\sum_{i=1}^{n}(x_i - \overline{x})^{2}}{n - 1}}\\=\sqrt{\dfrac{\sum_{i=1}^{n}(11.98 - 11.98)^{2}}{8 - 1}}+\sqrt{\dfrac{\sum_{i=1}^{n}(12.08- 11.98)^{2}}{8 - 1}}+...+\sqrt{\dfrac{\sum_{i=1}^{n}(12.10- 11.98)^{2}}{8 - 1}}\\=0.0815Compute the test statistic as follows:

t=\frac{\bar x-\mu}{\s/\sqrt{n}}=\frac{11.98-12}{0.0815/\sqrt{8}}=-0.69

The test statistic value is -0.69.

Decision rule:

If the <em>p</em>-value of the test is less than the significance level, then the null hypothesis will be rejected.

Compute the <em>p</em>-value of the test as follows:

p-value=2P(t_{7}

*Use a <em>t</em>-table.

The significance level of the test is, <em>α</em> = 0.05.

<em>p</em>-value = 0.512 > <em>α</em> = 0.05

The null hypothesis was failed to be rejected.

Hence, it can be concluded that the mean volume is 12 ounces.

5 0
3 years ago
Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.
svetoff [14.1K]
D -3m-4n+14. Once you write out the equation, you have to combine all the like terms, also known as simplifiying
6 0
2 years ago
Read 2 more answers
Rob peeled 125 oranges in 5 hours. At that rate, how many oranges<br> would he peel in 12 minutes?
marin [14]

Answer:

\boxed {\tt 5 \ oranges}

Step-by-step explanation:

Let's set up a proportion.

\frac{oranges}{minutes} =\frac{oranges}{minutes}

He can peel 125 oranges in 5 hours. First, let's find the minutes in 5 hours.

There are 60 minutes in 1 hour, so multiply 60 and 5 (60*5=300). There are 300 minutes in 5 hours.

\frac{125 \ oranges}{300 \ minutes}=\frac{oranges}{minutes}

We don't know how many oranges he can peel in 12 minutes. So we say he can peel x oranges in 12 minutes.

\frac{125 \ oranges}{300 \ minutes}=\frac{x \ oranges}{12 \ minutes}

\frac{125 \ }{300 \ }=\frac{x \ }{12 }

Solve for x by isolating it. x is being divided by 12. The inverse of division is multiplication. Multiply both sides of the proportion by 12.

12*\frac{125 \ }{300 \ }=\frac{x \ }{12 \ }*12

12*\frac{125 \ }{300 \ }=x

12*0.416666667=x

5=x

Rob can peel 5 oranges in 12 minutes.

6 0
3 years ago
Read 2 more answers
Please help! the question is in the photo :))
dlinn [17]

Answer:

00000

Step-by-step explanation:

please send the clear pic of the question

8 0
2 years ago
Read 2 more answers
Find the value of x rounded to the nearest tenth
elena-14-01-66 [18.8K]
Cos28=11/x
x=11/cos28
it will be c
5 0
3 years ago
Read 2 more answers
Other questions:
  • A number is chosen at random from 1 to 10 find the probability of selecting a multiple of 3
    11·2 answers
  • A friend asks to borrow $250 for 18 months and pays 12% annual simple interest how much interest will you earn
    10·1 answer
  • What is 5 / 43 / 25 / 86
    5·1 answer
  • Discrete Math (MACM 101 Question)
    5·1 answer
  • What is the square of 20
    14·2 answers
  • Solve the formula x/4 + x/3 = 1
    14·2 answers
  • B) Find the standard deviation of the number of nights potential customers will need.
    5·1 answer
  • What should be added to 3/4+-5/6+1/2 to get 0
    14·1 answer
  • A survey of 2,541 American households discovered that 64% of the households own one car.
    12·1 answer
  • Help with Math Please... need in 5 min or less.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!