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
LekaFEV [45]
3 years ago
7

Sarah has gone four weeks. Micah has been recording the daily high temperature. During that time, the high temperature has been

greater than 45F on 20 out of 28 days. What is the experimental probability that the high temperature will be below 45F on the twenty-ninth day?
Mathematics
1 answer:
pickupchik [31]3 years ago
8 0
The experimental probability that the high temp will be below 45 F on the 29th day is, 4.5 out of 29 days, that is because 20 of the days have had lower temperatures, so they left 9 days of and from those 9 days, they could be lower or greater that 45F (50% each side), that is:
4.5/29 = 0.155 = 15.5%
that is the exp probability
You might be interested in
5. Nobu ate of one pizza, Brandi ate half
iren2701 [21]

Answer:

Step-by-step explanation:

Is a bien de su coma

7 0
3 years ago
Read 2 more answers
Can u plz help me look at the photo<br><br> PLZ NO LINKS
djyliett [7]

Answer:

0.07

Step-by-step explanation:

The hundredths place is the place between the tenths and thousandths place. For example, the digit in the tenths place in 0.073 is 7.

To round to the nearest hundredth, we look to the digit right of the hundredth digit, 7. We notice that the digit in the thousandths place is 3. When rounding, if a number is 4 or less, we change that digit to a 0, along with the digits beyond it. If a number is 5 or more, we bump up the digit to the next number. Since 3 is less than 4, we change 0.073 to 0.07.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

8 0
2 years ago
A filing unit has six shelves and holds 180 inches of filing. How many inches of filing does each shelf hold
Anestetic [448]

Answer:

Each shelf holds 30 inches of filling.

Step-by-step explanation:

Divide 180 inches of filling by  the six shelves and you get 30 inches of filling per shelf

You are welcome

5 0
3 years ago
House of Mohammed sells packaged lunches, where their finance department has established a
blagie [28]

The revenue function is a quadratic equation and the graph of the function

has the shape of a parabola that is concave downwards.

The correct responses are;

  • (a) <u>R = -x² + 82·x</u>
  • (b) <u>$1,645</u>
  • (c) The graph of <em>R</em> has a maximum because the <u>leading coefficient </u>of the quadratic function for <em>R</em> is negative.
  • (d)  <u>R = -1·(x - 41)² + 1,681</u>
  • (e) <u>41</u>
  • (f) <u>$1,681</u>

Reasons:

The given function that gives the weekly revenue is; R = x·(82 - x)

Where;

R = The revenue in dollars

x = The number of lunches

(a) The revenue can be written in the form R = a·x² + b·x + c by expansion of the given function as follows;

R = x·(82 - x) = 82·x - x²

Which gives;

  • <u>R = -x² + 82·x </u>

<em>Where, the constant term, c = 0</em>

(b) When 35 launches are sold, we have;

x = 35

Which by plugging in the value of x = 35, gives;

R = 35 × (82 - 35) = 1,645

  • The revenue when 35 lunches are sold, <em>R</em> = <u>$1,645</u>

(c) The given function for <em>R</em> is R = x·(82 - x) = -x² + 82·x

Given that the leading coefficient is negative, the shape of graph of the

function <em>R</em> is concave downward, and therefore, the graph has only a

maximum point.

(d) The form a·(x - h)² + k is the vertex form of quadratic equation, where;

(h, k) = The vertex of the equation

a = The leading coefficient

The function, R = x·(82 - x), can be expressed in the form a·(x - h)² + k, as follows;

R = x·(82 - x) = -x² + 82·x

At the vertex, of the equation; f(x) = a·x² + b·x + c,  we have;

\displaystyle x = \mathbf{-\frac{b}{2 \cdot a}}

Therefore, for the revenue function, the x-value of the vertex, is; \displaystyle x = -\frac{82}{2 \times (-1)} = \mathbf{41}

The revenue at the vertex is; R_{max} = 41×(82 - 41) = 1,681

Which gives;

(h, k) = (41, 1,681)

a = -1 (The coefficient of x² in -x² + 82·x)

  • The revenue equation in the form, a·(x - h)² + k is; <u>R = -1·(x - 41)² + 1,681</u>

(e) The number of lunches that must be sold to achieve the maximum revenue is given by the x-value at the vertex, which is; x = 41

Therefore;

  • The number of lunches that must be sold for the maximum revenue to be achieved is<u> 41 lunches</u>

(f) The maximum revenue is given by the revenue at the vertex point where x = 41, which is; R = $1,681

  • <u>The maximum revenue of the company is $1,681</u>

Learn more about the quadratic function here:

brainly.com/question/2814100

6 0
3 years ago
Is it the green?<br><br>Which line has a slope of 2?
OleMash [197]

Answer:

With all the lines, I may be wrong. But I'm confident that line B has a slope of 2.

This is because it rises up 2 up the y axis for every one unit on the x axis.

8 0
3 years ago
Read 2 more answers
Other questions:
  • How can you tell which is bigger, a square with a perimeter of 25 units or a square with an area of 25 square units
    13·1 answer
  • Cedric's basketball team scored fewer than 78 points in their last game. Which of the following inequalities represents the numb
    9·1 answer
  • In a video game, Clare scored 50% more pints than Tyler. If c is the number of points that Claire scores and t is the number of
    6·1 answer
  • The triangle shown has a hypotenuse with a length of 13 feet. The measure of angle A is 20 degrees. and the measure of angle B i
    14·1 answer
  • Triangle ABC is dilated by a scale factor of 4 to form triangle A′B′C′.
    8·1 answer
  • D is directly proportional to t2 When t = 4, D = 8 Find the positive value of t when D = 50
    7·2 answers
  • Which geometric figure has 120 rotational symmetry?
    7·1 answer
  • An ice cream shop sells 700 cones per day at a price of $4.50. A survey lets the owner know
    10·1 answer
  • I need help finding x!<br><br> Please show work for both!
    10·2 answers
  • 4.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!