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
Sphinxa [80]
2 years ago
7

A company has 50 employees all working in the same building. As part of their safety procedures, a fire drill is carried out wit

h the total number of employees who have left the building recorded every 10 seconds. the results are displayed in the cumulative frequency diagram below. the company has the following policy "in event of a fire at least 90% of the employees must have left the building within 1 minute"
Did the fire drill meet the policy above? you must show all your working.

Mathematics
1 answer:
Novay_Z [31]2 years ago
8 0

Answer:

yes

Step-by-step explanation:

if you see the diagram go to 60 s and you see it untop of 45 percent so it 95% so they meet the policy

You might be interested in
There were 324 adults surveyed. Among the participants, the mean number of hours of sleep each night was 7.5 and the standard de
kirill [66]
0.17 sense you have to round it to the nearest hundreth


5 0
2 years ago
Read 2 more answers
A bulletin board can be covered completely by 30 square pieces of paper without any gaps or overlaps if each piece of paper has
34kurt

Answer:

The area of the bulletin board is 30 square foot.

Step-by-step explanation:

A bulletin board can be covered completely by 30 square pieces of paper without any gaps or overlaps.

If each piece of paper has side length of 1 foot so the area of each paper is 1 ft x 1 ft = 1 square foot.

There are 30 pieces of paper needed to completely cover the bulletin board, so 30 pcs of paper with an area of 1 square foot is equal to 30 square feet. The area of the bulletin board is 30 square foot.

4 0
2 years ago
Lamar shares 6 pencils equally with himself and 5 friends. Write an equation and solve to show the number of pencils each friend
kkurt [141]
6 pencils÷ lamer+5 other friends=1.1 pencil for each person
3 0
2 years ago
Read 2 more answers
Simplify the following expression into the form a + bi, where a and b are rational numbers.
vagabundo [1.1K]
The answer is -16 - 10i.

Using the distributive property on the first part, we have:
-2i*7--2i*4i + (3+i)(-2+2i)
-14i+8i² +(3+i)(-2+2i)

Using FOIL on the last part,
-14i+8i²+(3*-2+3*2i+i*-2+i*2i)
-14i+8i²-6+6i-2i+2i²
-10i+8i²-6+2i²

Since we know that i = -1,
-10i+8(-1)-6+2(-1)
-10i-8-6-2
-16-10i
7 0
2 years ago
Read 2 more answers
Statements about regression
galben [10]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

  • It is true because the square of the standard error of its estimate was its total square error divided only by the degree of freedom.  
  • It is true because Its coefficient with Standardized Regression, beta, will have the same value as r, the approximate similarity.  
  • It is false because Its slope b, of its equation of regression, will have the same value as r, the projected correlation.
3 0
2 years ago
Other questions:
  • Emily wants to hang a painting in a gallery. The painting and frame must have an area of 31 square feet. The painting is 5 feet
    10·2 answers
  • The mean weight of the packages Joan shipped was 2.5 pounds. If Joan mailed four packages and three of them had weights of 1.7,
    5·1 answer
  • Jenny runs a cake making business, she receives an order of 6 carrot cakes. How much mixed spice will she need for 6 cakes. The
    10·2 answers
  • Varia is studying abroad in Europe. She is required pay $3,500 (in US dollars) per year to the university; however, she must pay
    15·2 answers
  • a direct variation function contains the points ( -8, -6 ) and (12,9 ) . Which equation represents the function ?
    14·1 answer
  • Determine all real numbers a$ such that the inequality $ |x^2 2ax 3a|\le2$ has exactly one solution in x$.
    5·1 answer
  • The table below shows the amount of lemon juice and sugar needed to make three different-sized batches of lemonade using the sam
    14·1 answer
  • Ava and Kelly ran a road race, starting from the same place at the same time. Ava ran at an average speed of 6 miles per hour. K
    11·1 answer
  • What property is used in the second step of solving the inequality below?
    5·2 answers
  • Write the converse of the following statement and determine its truth value.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!