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
lys-0071 [83]
2 years ago
12

A restaurant sold 6 hamburgers every day for a week. How many hamburgers were sold during the week

Mathematics
2 answers:
DedPeter [7]2 years ago
7 0

Answer:

42 hamburgers

Step-by-step explanation:

bagirrra123 [75]2 years ago
6 0

Your answer is <u>42</u>.

6 x 7 = 42

You might be interested in
Darren wants to estimate the mean age in a population of trees. He'll sample nnn trees and build a 90\%90%90, percent confidence
Alchen [17]

Using the z-distribution, as we have the standard deviation for the population, it is found that the smallest sample size required to obtain the desired margin of error is of 77.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

The margin of error is given by:

M = z\frac{\sigma}{\sqrt{n}}

In this problem, we have that the parameters are given as follows:

M = 3, z = 1.645, \sigma = 16.

Hence, solving for n, we find the sample size.

M = z\frac{\sigma}{\sqrt{n}}

3 = 1.645\frac{16}{\sqrt{n}}

3\sqrt{n} = 1.645 \times 16

\sqrt{n} = \frac{1.645 \times 16}{3}

(\sqrt{n})^2 = \left(\frac{1.645 \times 16}{3}\right)^2

n = 76.97

Rounding up, the smallest sample size required to obtain the desired margin of error is of 77.

More can be learned about the z-distribution at brainly.com/question/25890103

4 0
2 years ago
Find the area of the figure. Round to the nearest hundredth when necessary
dexar [7]

Answer:

  745.44 square mm

Step-by-step explanation:

The figure can be decomposed into ...

  • a semicircle of radius 12.5 mm
  • a rectangle 12.5 mm by 25 mm
  • a triangle 12.5 mm by 30 mm

The relevant area formulas are ...

  Semicircle: A = 1/2πr² = 1/2π(12.5 mm)² ≈ 245.437 mm²

  Rectangle: A = LW = (12.5 mm)(25 mm) = 312.500 mm²

  Triangle: A = 1/2bh = 1/2(12.5 mm)(30 mm) = 187.500 mm²

Total area of the figure is ...

  245.437 +312.500 +187.500 = 745.437 . . . mm²

The area of the figure is about 745.44 square mm.

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to 735 ÷ 100?
aalyn [17]

Answer:

735x0.01

Step-by-step explanation:

4 0
2 years ago
Please help me with these questions. Thank you!
natka813 [3]

Answer:

382.19cm²

Step-by-step explanation:

a / sin(A) = b / sin(B)

a / sin(68) = 53 / sin(95)

a = (53 x sin(68)) / sin(95)

a = 49.33

area = ½absin(C)

C = 180 - (95 + 68)

C = 180 - 163

C = 17°

area = ½(53)(49.33)sin(17)

area = 382.19cm²

3 0
1 year ago
Is the triangle with the vertices A(5,2), B(0,6), and C(-5, - 7) a right triangle?
gogolik [260]

Answer:

We have, from distance formula.

AB² = (5-0)² + (2-6)² = 5² + 4² = 25 + 16 = 41

BC² = (0+5)² + (6+7)² = 5² + 13² = 25 + 169 =194

AC² = (5+5)² + (2+7)² = 10² + 9² = 100+81 = 181

Here, BC² ≠ AB² + AC².

So, the triangle is not a right triangle      

6 0
3 years ago
Read 2 more answers
Other questions:
  • Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the
    7·1 answer
  • An item is priced at $14.74. If the sales tax is 4%, what does the item cost including sales tax? A. $20.64 B. $15.33 C. $0.59 D
    13·1 answer
  • Find the volume of a pyramid with a square base, where the perimeter of the base is
    10·1 answer
  • Price-club sells a 12-ounce box of crackers for $2.59 and Shop Mart sells 1-1/2 pound box of crackers for $4.68. What is the uni
    7·2 answers
  • Select the BEST classification for square root .0081 . A) irrational B) rational C) imaginary D) complex
    13·2 answers
  • 15 is 6% of what number?
    5·1 answer
  • Can anyone help me Me with my homework
    7·1 answer
  • What is 4 written in decimal form?<br> u<br> A. 4.2<br> B. 4.25<br> C. 4.4<br> D. 4.75
    12·1 answer
  • Find X in the given figures.
    7·1 answer
  • Write 1.74 x 10^-4 as an ordinary number
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!