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
Ulleksa [173]
3 years ago
9

2x + 5y - 3x + 11y =

Mathematics
1 answer:
Nitella [24]3 years ago
7 0

Answer:

− x + 16y

Step-by-step explanation:

2x + 5y − 3x + 11y

= 2x + 5y + − 3x + 11y

Combine Like Terms:

= 2x + 5y + − 3x + 11y

= (2x + − 3x) + (5y + 11y)

= − x + 16y

You might be interested in
An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such tha
KiRa [710]

The p-value from the hypothesis test is 0.142 i.e., greater than the given significance level of 0.05. So, the null hypothesis is not rejected. The z-score for the given sample is 1.471.

<h3>What is the decision rule for the p-value approach to hypothesis testing?</h3>

The decision rule based on p-value states,

  • If p > α (significance level), then the null hypothesis is not rejected
  • If p < α (significance level), then the null hypothesis is rejected in favor of the alternative hypothesis.

<h3>Calculation:</h3>

Since it is given that the valve would produce a mean pressure of 5.4 pounds/square inch. I.e., μ = 5.4 p/si

So, Defining the hypothesis:

Null hypothesis H0: μ = 5.4

Alternative hypothesis Ha: μ ≠ 5.4

It is given that,

The valve was tested on 24 engines. I.e., Sample size n = 24

The sample mean X = 5.7

Standard deviation σ = 1.0 and

The significance level = 0.05

Since the population distribution is approximately normal,

the test statistic is calculated as follows:

z = (X - μ)/(σ/\sqrt{n})

On substituting the value,

z = (5.7 - 5.4)/(1.0/\sqrt{24})

  = (0.3)/0.204

  = 1.471

Fron this z-score, the p-value is calculated as 0.142.

Since, the value of p > 0.05 (significance level), the null hypothesis is not rejected.

Learn more about hypothesis testing here:

brainly.com/question/22078281

#SPJ4

6 0
1 year ago
State of the given functions are inverses
bonufazy [111]

Answer:

1) They are not inverses

2) They are inverses

Step-by-step explanation:

We need to find the composition function between these functions to verify if these functions are inverses. If f[g(x)] and g[f(x)] are equal to x they are inverses.

<u>1)</u>

<u>Let's find f[g(x)] and simplify.</u>

f[g(x)]=\frac{1}{2}g(x)+\frac{3}{2}

f[g(x)]=\frac{1}{2}(4-\frac{3}{2}x)+\frac{3}{2}    

f[g(x)]=\frac{7}{2}-\frac{3}{4}x

As f[g(x)] is not equal to x, these functions are not inverses.

2)

<u>Let's find f[g(x)] and simplify.</u>

f[g(n)]=\frac{-16+(4n+16)}{4}

f[g(n)]=\frac{-16+4n+16}{4}

f[g(n)]=\frac{4n}{4}

f[g(n)]=n

Now, we need to find the other composition function g[f(x)]

<u>Let's find g[f(x)] and simplify.</u>

g[f(x)]=4(\frac{-16+n}{4})+16

g[f(x)]=-16+n+16

g[f(x)]=n

Therefore, as f[g(n)] = g[f(n)] = n, both functions are inverses.

I hope it helps you!  

3 0
3 years ago
Create three fractions whose product is -5/24. You may only use fractions between -8/9 to 8/9 and you can only use a fraction on
damaskus [11]

Answer:

We find 3/4-5/24 = 0.54166666666 and try 2/7 x 6/8 = 0.21428571428

this is 0.069 too much we look at this as a fraction = 0.07 which is 1/10 approx of the 6/8. we then reapply 7/9 x 2/7 x 3/3 = 0.2

So we went up by 1 and can show another

2/7 x 7/10 = 2.0

So to 1dp there is lots of fractions including 2/7 x 7/9 = 2.0

But for three fractions that multiply together we can chose 5/7 x 2/6 x 6/6 = 2.0  As 5 x 2 x 6 = 60 and 60/360-102 = 60/258 = 0.20 and divided 198 =numbers 8 and 1/3 work with = 1.98/8.3 = 2.38554

We try again 1.68/8.3 = -0.2024 = 2/8 x 8/10 = 0.2

The balance is 1.3/2 x 0.8/2 = 0.65 x 0.333 = 13/20 x 1/3

3/5 x 1/3 = 0.2

8 0
3 years ago
Solve for p. −4.5 + p6= −18.9
Vesna [10]

Answer:

-2.4

Step-by-step explanation:

Given data

We have the expression before us as

−4.5 + p6= −18.9

Collect like terms

p6= −18.9+4.5

p6= -14.4

Divide both sides by 6

p= -14.4/6

p=-2.4

Hence the value of p= -2.4

7 0
3 years ago
Read 2 more answers
The given right rectangular prism is composed of small cubes. Find the following is the volume of the prism and the volume of on
valina [46]

Answer:

The big prism= \frac{25}{18} feet squared

Each individual cube= 216 inches squared

Step-by-step explanation:

The big prism LxWxH

The individual cube = 1 foot/6 (amount of edges made of small cubes) = 2 inches.

IDK how to convert from inches to feet though cause I ain't American. Sorry.

Hope that helped!!! k

5 0
3 years ago
Other questions:
  • Simplify the expression. 3t(t - 5) + 6t to the 2nd power
    5·1 answer
  • Which of the following statements best describes the graph of x + y = 4?
    7·2 answers
  • Please help me ASAP. Many Thanks
    8·1 answer
  • Which of the following are factors of x^4 − 81? Select all that apply.
    11·2 answers
  • Find the common difference for the given sequence.<br><br> 1.05, 1.1, 1.15, 1.2, ...
    11·2 answers
  • Callie is comparing the costs of two options for her college education.
    5·2 answers
  • How do you find the area of pentagons like this?
    14·1 answer
  • Which of the following values are in the range of the function graphed below? Check all that apply​
    10·1 answer
  • CAN SOME ONE BE MY FRIEND............
    10·2 answers
  • Plz help asap brainiest if right
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!