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
guajiro [1.7K]
3 years ago
8

Help I need this today

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0

Answer:

x=70

y=75

Step-by-step explanation:

2x+x+5-35=180

3x-30=180

3x=210

x=70

2(70)-35=105

180-105=75

y=75

You might be interested in
Which of the following is a factor of 3x3-12x2 +X-4 ?<br> A. X+3<br> B. X+2<br> C. X-4<br> D.X-1
DiKsa [7]

Answer:

B.x+2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Suppose in the University of Manitoba, 40% of the students live in apartments. If 600 students are randomly selected, then the a
just olya [345]

Answer:

P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)

=P(Z

So then the correct answer would be:

B) .9996

Step-by-step explanation:

The exact way to solve this problem is using the binomial distribution, assuming that our random variable of interest is "number of students living in apartments" represented by X and X \sim Bin(n=600, p =0.4)

And we want this probability:

P(200 \leq X \leq 400) [tex]In order to find this probability we can use the foloowing excel code:"=BINOM.DIST(400,600,0.4,TRUE)-BINOM.DIST(199,600,0.4,TRUE)"And we got:[tex] P(200 \leq X \leq 400) =0.999675[tex]But for this case the problem says that we need to approximate, so then we can use the normal approximation to the normal distribution. We need to check the conditions in order to use the normal approximation.&#10;[tex]np=600*0.4=240\geq 10

n(1-p)=600*(1-0.4)=360 \geq 10

So we see that we satisfy the conditions and then we can apply the approximation.

If we appply the approximation the new mean and standard deviation are:

E(X)=np=600*0.4=240

\sigma=\sqrt{np(1-p)}=\sqrt{600*0.4(1-0.4)}=12

And then X \sim N (\mu = 240, \sigma= 12)

And we are interested on the following probability:

P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)

=P(Z

So then the correct answer would be:

B) .9996

6 0
3 years ago
I need help asp . I'm running out of time​
frutty [35]

Answer:

A = 104 ft²

Step-by-step explanation:

We're given that the width of the rectangle is 8 so that's the value of w. All we have to do is just plug in 8 into the equation:

A=w²+5w

A=(8)²+5(8)

A=64+40

A = 104 ft²

7 0
3 years ago
Help plss!!show me how to do this and the answer for 20 or 15 points thx!
GarryVolchara [31]
Let me show you a website that has saved my behind so many times in high-school...

https://www.cymath.com/

4 0
3 years ago
A Thurstone scale was constructed to measure creativity. The scale scores ranged from 1 to 13. If the scale was properly constru
Sonja [21]

Answer: A person with a score of 6 was more creative than a person with a score of 5

Step-by-step explanation: The Thurstone scale is usually employed in the representation of non-numerical attributes such as creativity, like or dislike, understanding and so on. in a numerical format usually in questionnaires or surveys in other to denote the level of agreement or disagreement with the statement or create ranking. However, despite being represented in numerical format to create distinction and processing. Variables measured cannot be subjected to mathematical calculation.

In the scenario above, creativity is represented in numerical format to show the level of creativity such that individuals with higher numbers are deemed more creative than those with lesser figures. However, it is wrong to Infer that an individual with creativity score of 6 is twice as creative as those with a creativity of 3.

IT just shows that individuals with 6 are more creativity than those with 5 and so on.

7 0
3 years ago
Other questions:
  • What is the decrease in 15.60 to 11.70
    11·1 answer
  • A sports ball has a diameter of 12 cm. Find the volume of the ball. Round your answer to 2 decimal places, and use 3.14 as an ap
    12·1 answer
  • A well pump pumps at a rate of 40 gallons per minute. you want to fill a 1,000-gallon tank. the tank already has 80 gallons. you
    13·1 answer
  • 7200 divided by Y = 90 tutorial
    9·1 answer
  • What is the cube root of 1024?
    5·1 answer
  • 1. Find the least common multiple of 6 and 9. oct common multiple of​
    6·1 answer
  • Blake's pool can hold 2.539 gal of water when full. If it takes 9 hours to fill the empty pool. How much water will be in the po
    11·1 answer
  • Solve this system using substitution x+5y=-32 y=3x
    5·1 answer
  • Which of the following numbers round to 43,000 when rounded to the nearest thousand? Select all that apply 42,499 42,532 42,983
    8·2 answers
  • 200,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000+1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!