answer.
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
harkovskaia [24]
2 years ago
10

Select the correct answer. Which is the simplified form of the expression ? A. B. C. D. here is a photo of it and 40 points and

who ever gives me answer marked brainlyest

Mathematics
2 answers:
PolarNik [594]2 years ago
5 0

Answer:

c

Step-by-step explanation:

allsm [11]2 years ago
4 0

Answer:

it  is c

Step-by-step explanation:

You might be interested in
A small business ships specialty homemade candies to anywhere in the world. Past records indicate that the weight of orders is n
FinnZ [79.3K]

Answer with Step-by-step explanation:

Since we have given

n = 16

a) Describe the sampling distribution for the sample mean.

The sampling distribution of the mean is the population's mean from where the items are sampled.

It would be \mu

b. What is the standard error?

s=\dfrac{\sigma}{\sqrt{n}}\\\\s=\dfrac{14}{\sqrt{16}}\\\\s=\dfrac{14}{4}\\\\s=3.5

c. For 90% confidence, what is the margin of error?

Degrees of freedom = v - 1= 16-1 = 15

Using t-table, 1.753 cuts 5% level of significance in each tail.

so, Margin of error would be

1.753\times 3.5\\\\=6.1355

d. Based on the sample results, create the 90% confidence interval and interpret.

So, 90% confidence interval would be

110+6.136\\\\=116.136\\\\and\\\\110-6.136\\\\=103.86

(103.86,116.136)

3 0
2 years ago
Franklin rides his bike to the beach averaging 18mph. He rides home along the same route. What speed must he average on the way
Sedaia [141]
  • <em>Answer:</em>

<em> 24 mph</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>Vm = 21mph</em>

<em>V1 = 18mph</em>

<em>V2 = ?</em>

<em>Vm = (V₁ + V₂)/2</em>

<em>2Vm = V₁ + V₂</em>

<em>V₂ = 2Vm - V₁</em>

<em>replace Vm ; V₁</em>

<em>V₂ = 2×21mph - 18mph</em>

<em>= 42mph - 18mph</em>

<em>= 24 mph</em>

<em>Good luck !</em>

8 0
2 years ago
A coach purchases 47 hats for his players and their families at a total cost of $302. The cost of a small hat is $5.50. A medium
bazaltina [42]
First, we define variables:
 x: small hat
 y: medium hat
 z: large hat
 We now write the system of equations:
 x + y + z = 47
 5.50x + 6y + 7z = 302
 -3x + y = 0
 We can write the system in matrix form as:
 Ax = b
 Where,
 A = [1  1  1; 5.50  6  7; -3  1  0]
 b = [47;  302;  0]
 x = [x;  y ;  z]
 Solving the system we have:
 x = 6
 y = 18
 z = 23
 Answer:
 
the coach did purchase 23 large hats
 
d. 23
3 0
2 years ago
Read 2 more answers
Tommy Webster obtained a 30-year, $110,000.00 mortgage loan from People's Savings. The interest rate is 7.5 percent. For the fir
Pepsi [2]
The interest on the first monthly payment is ...
  I = Prt
  I = 110,000*7.5%*(1/12)= 687.50

For the first payment, the interest is
  $687.50

_____
The time period for the interest rate calculation is 1/12 year.
4 0
2 years ago
Ben uses 3/12 pound of strawberries and 2/12 pound of blueberries
Gennadij [26K]

Answer:

what's the rest of the question

Step-by-step explanation:

:/

4 0
2 years ago
Read 2 more answers
Other questions:
  • Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1
    7·2 answers
  • Orly uses 2 cups of raisins for every 9 cups of trail mix she makes. How many cups of trail mix will she make if she uses 12 cup
    11·1 answer
  • What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9? I need help ASAP!!!!!!! please help me
    13·2 answers
  • Sharon is rowing a boat upstream. The river is flowing at a speed of 3 miles per hour. Sharon starts rowing at a speed of 8 mile
    14·1 answer
  • I have to multiply then check my work by switching factors
    7·1 answer
  • Ben bought the enormous box of juice shown below. He drinks 450 cubic centimeters of juice each day.
    12·2 answers
  • What is the relationship between the degree measure of the angle formed by the straight edges of a section of a circle graph as
    9·1 answer
  • Work out the missing numbers:<br> a)(-4)x =320
    12·2 answers
  • Xavier is attempting to recreate a problem his teacher showed him in class. To do so, he creates the table below. x y 1 3 2 ? He
    7·2 answers
  • The equation for the line of best fit is f(x) ≈ 1.8x − 5.4 for the set of values in the table. A 2-column table with 7 rows. The
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!