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
Mkey [24]
3 years ago
9

Question 7 Solve the Equation: D(7) = ? D= 8

Mathematics
1 answer:
Degger [83]3 years ago
4 0
If 8=8 it will be 8(7) which means we have to do 8*7 and 8*7 will be 56 so the answer is 56 :) brainliest would be appreciated
You might be interested in
Suppose that you take a sample of 250 adults. If the population proportion of adults who watch news videos is 0.58​, what is the
aliina [53]

Answer:

0.36% probability that fewer than half in your sample will watch news​ videos

Step-by-step explanation:

To solve this question, i am going to use the binomial approximation to the normal.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 250, p = 0.58

So

\mu = E(X) = 250*0.58 = 145

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{250*0.58*0.42} = 7.80

If the population proportion of adults who watch news videos is 0.58​, what is the probability that fewer than half in your sample will watch news​ videos

Half: 0.5*250 = 125

Less than half is 124 or less

So this is the pvalue of Z when X = 124

Z = \frac{X - \mu}{\sigma}

Z = \frac{124 - 145}{7.8}

Z = -2.69

Z = -2.69 has a pvalue of 0.0036

0.36% probability that fewer than half in your sample will watch news​ videos

8 0
3 years ago
Read 2 more answers
Write an algebraic expression for 84 more than the product of 167 and b
Ket [755]

Answer:

  167b + 84

Step-by-step explanation:

Multiplication is indicated between a number and a variable by writing them next to each other. A "product" is the result of multiplication, so "the product of 167 and b" is written 167b.

If you want a value that is 84 more than that, you get it by adding 84.

  167b + 84

4 0
3 years ago
A positive integer is 4 more than 12 times another. Their product is 5896. Find the two integers.
maksim [4K]
X = integer one
y = integer 2

x = 12y + 4

x * y = 5896

Solve the system of equations
8 0
3 years ago
Read 2 more answers
Can the sides of a triangle have lengths 3, 3, and 10?
Bingel [31]

Answer:

No

Step-by-step explanation:

According to the property of the triangle ,

sum of any two sides should we greater then third side of the triangle.

Here, Measurement of three sides are given as 3,3,5 .

So, sum of the measurement of first two sides is 6.

And third side equals 10.

Clearly 6 is less than 10. So . it violates the property sum of any two sides should we greater then third side of the triangle.

Thus , Sides of a triangle can't be 3,3,10.

8 0
3 years ago
Read 2 more answers
Write the following statement as an equation​
puteri [66]

Answer:

The answer is: b5y + 9 = 16

3 0
3 years ago
Read 2 more answers
Other questions:
  • 30 Points if you can answer my question
    5·1 answer
  • Which of the following can be used to find the sum of the interior angles for any regular polygon?
    7·2 answers
  • The average heights of a random sample of 400 people from a city is 1.75 m. It is known that the heights of the population are r
    8·1 answer
  • Ricardo uses a rule to make a pattern of numbers .all the number r odd .which could be the rule
    9·1 answer
  • HELP IN THIS QUESTION
    9·2 answers
  • What is the equation of the following line? Be sure to scroll down first to see all answer options. A. y = - x B. y = x C. y = -
    10·1 answer
  • The local newspaper has letters to the editor from 70 people. If this number represents 2​% of all of the​ newspaper's readers,
    12·1 answer
  • 1. Find the distance between the points A(1,0) and B(0,0).​
    9·2 answers
  • Can you figure out the missing number in this sequence?<br><br> 2, 5, 9, 14, 27
    6·1 answer
  • ⚠️URGENT PLEASEEEEE HELP!!!<br><br> Find the m
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!