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
timama [110]
4 years ago
12

What is y in 15=-7.5x^2+86x+702

Mathematics
1 answer:
dexar [7]4 years ago
8 0

Answer:

  • add 15<em>x</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>8</em><em>6</em><em>x</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>l</em><em> </em><em>t</em><em>o</em><em> </em><em>7</em><em>1</em><em>x</em>
You might be interested in
Which is an equation of the line that passes<br> through the points (-2,5) and (-4. -5)?
DedPeter [7]

Answer:

y=5x=15

Step-by-step explanation:

y-5=5(x--2)

y-5=5x+10

y=5x+15

4 0
3 years ago
You are collecting a sample of 60 data points from a population that you know to follow an exponential distribution. It is not a
11111nata11111 [884]

Answer:

For the exponential distribution:

\mu = \frac{1}{\lambda}

\sigma^2 = \frac{1}{\lambda^2}

We know that the exponential distribution is skewed but the sample mean for this case using a sample size of 60 would be approximately normal, so then we can conclude that if we have a sample size like this one and an exponential distribution we can approximate the sample mean to the noemal distribution and indeed use the Central Limit theorem.

\bar X \sim N(\mu_{\bar X} , \frac{\sigma}{\sqrt{n}})

\mu_{\bar X} = \bar X

\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}

Step-by-step explanation:

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

For this case we have a large sample size n =60 >30

The exponential distribution is the probability distribution that describes the time between events in a Poisson process.

For the exponential distribution:

\mu = \frac{1}{\lambda}

\sigma^2 = \frac{1}{\lambda^2}

We know that the exponential distribution is skewed but the sample mean for this case using a sample size of 60 would be approximately normal, so then we can conclude that if we have a sample size like this one and an exponential distribution we can approximate the sample mean to the noemal distribution and indeed use the Central Limit theorem.

\bar X \sim N(\mu_{\bar X} , \frac{\sigma}{\sqrt{n}})

\mu_{\bar X} = \bar X

\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}

5 0
4 years ago
Pythagorean Theorem #2
Nataly_w [17]

Answer:

4 square root 2

Step-by-step explanation:

the pythagorian theorem will look like this: 2^2+b^2=6^2

simpify: 4+b^2=36

get b by itself by subtracting four from each side: b^2=32

take the square root of 32 and simplify: 4sqrt2

6 0
3 years ago
Read 2 more answers
for cases of n objects taken n at a time the number of possible combinations is _____________ the number of possible permutation
slavikrds [6]

Answer:

I believe your answer is less than or equal to. I hope this helps.

8 0
3 years ago
Read 2 more answers
How many ten thousand are in 8 million
wlad13 [49]
8.000.000 = 800 ten thousands 

hope helped 
7 0
3 years ago
Other questions:
  • Identify the following as either an expression, an equation, or neither.<br>3x+(10 - x) = 3​
    13·1 answer
  • Which ratio forms a proportion with 16/20
    10·2 answers
  • What is the answer to this
    7·1 answer
  • Nestor need 750 centimeters of rope . Rope comes in lengths of 4 1/2 meters and 9 meters at the hardware store. Which length of
    10·1 answer
  • Hello I don't know how to do this, can somebody explain me? Graph the linear function w(x)= 3/5x+2 ​
    11·1 answer
  • If a sample of 58 runners were taken from a population of 302 runners, could refer to the mean of how many runners' times?
    10·2 answers
  • Given: 3x + 1 = -14; Prove: x = -5<br> Statements
    14·1 answer
  • HELPPPPPPPPPPPPPPPPPP
    6·1 answer
  • Tess plants flowers every year, and she noticed that her flowers tend to bloom earlier when the spring weather is warmer. She co
    13·2 answers
  • Find the focus and the directrix for the parabola with the given equation.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!