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
SIZIF [17.4K]
2 years ago
13

The mean of 5 numbers is 4. What happens to the mean if the number 13 is added to the data set?

Mathematics
2 answers:
Temka [501]2 years ago
8 0
It’s option D. Hope it helps
elena-s [515]2 years ago
5 0
D, hope I helped you
You might be interested in
-/2 points
Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval  (-∞,∞)

Part 2) The range is the interval  (-∞,1]

Step-by-step explanation:

we have

f(x)=-x^2+14x-48

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

so

The range is the interval

(-∞,k]

Find the vertex

f(x)=-x^2+14x-48

Factor -1 the leading coefficient

f(x)=-(x^2-14x)-48

Complete the square

f(x)=-(x^2-14x+49)-48+49

f(x)=-(x^2-14x+49)+1

Rewrite as perfect squares

f(x)=-(x-7)^2+1

The vertex is the point (7,1)

therefore

The range is the interval

(-∞,1]

6 0
3 years ago
Difference of 86.42 - 2.1.
densk [106]

Answer:

The first one

Step-by-step explanation:

The decimals line up when you subtract them

3 0
3 years ago
Read 2 more answers
Which expression has a pair of like terms?
KATRIN_1 [288]

Answer: x-3+x+3y

Step-by-step explanation:

Because there is 2 x’s

7 0
3 years ago
The loaves of rye bread distributed to a local store by a certain bakery have an average length of 30 centimeters and a standard
cupoosta [38]

Answer:

79.91% of loaves are between 26.94 and 32.18 centimeters

Step-by-step explanation:

When the distribution is normal, we use 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.

In this question, we have that:

\mu = 30, \sigma = 2

What percentage of loaves are between 26.94 and 32.18 centimeters

This is the pvalue of Z when X = 32.18 subtracted by the pvalue of Z when X = 26.94.

X = 32.18:

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

Z = \frac{32.18 - 30}{2}

Z = 1.09

Z = 1.09 has a pvalue of 0.8621

X = 26.94:

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

Z = \frac{26.94 - 30}{2}

Z = -1.53

Z = -1.53 has a pvalue of 0.0630

0.8621 - 0.0630 = 0.7991

79.91% of loaves are between 26.94 and 32.18 centimeters

5 0
3 years ago
2. R = PN + C<br> Solve for (N)
Galina-37 [17]

Answer:

N=R/P−C/P

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

5 0
3 years ago
Other questions:
  • the soccer team is practicing in small groups.there are 36 players on the team.how many groups will they have if they split into
    13·1 answer
  • Milley wants to solve the following equations using the method of elimination:
    15·1 answer
  • 18 divided by 2 equals 9 because
    14·2 answers
  • 12 counters are arranged in 4 dishes are shown how could you rearrange the shade counters to clearly show to equivalent fraction
    9·1 answer
  • How to put 1760 into a fraction
    12·2 answers
  • The volume of a cube is 125 cubic inches. What is the length of one side of the cube? A. 5 inches B. 25 inches C. 125 inches D.
    7·1 answer
  • An item is regularly priced at $35 . It is on sale for 80% off the regular price. What is the sale price?
    8·1 answer
  • Keiko can type 72 words in 8 minutes. what is her rate in words per minute?<br><br> Please Help...
    12·2 answers
  • What value of x satisfies this equation, 4/5 x - 6 = -2 ? Group of answer choices
    8·1 answer
  • Find the sum of -3a + 2 and 5a - 3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!