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
statuscvo [17]
2 years ago
8

Pls say hard very hard​

Mathematics
1 answer:
Simora [160]2 years ago
8 0

(a) From the histogram, you can see that there are 2 students with scores between 50 and 60; 3 between 60 and 70; 7 between 70 and 80; 9 between 80 and 90; and 1 between 90 and 100. So there are a total of 2 + 3 + 7 + 9 + 1 = 22 students.

(b) This is entirely up to whoever constructed the histogram to begin with... It's ambiguous as to which of the groups contains students with a score of exactly 60 - are they placed in the 50-60 group, or in the 60-70 group?

On the other hand, if a student gets a score of 100, then they would certainly be put in the 90-100 group. So for the sake of consistency, you should probably assume that the groups are assigned as follows:

50 ≤ score ≤ 60   ==>   50-60

60 < score ≤ 70   ==>   60-70

70 < score ≤ 80   ==>   70-80

80 < score ≤ 90   ==>   80-90

90 < score ≤ 100   ==>   90-100

Then a student who scored a 60 should be added to the 50-60 category.

You might be interested in
frankie puts £3000 in a bank account for four years with 12% rate of interest. how much will be in the account at the end of the
Tpy6a [65]
3000x1.12
=3360
Therefore, Frankie will have £3360 percent chance for at the end if the time period
3 0
3 years ago
Need help ASAP please
Likurg_2 [28]

Answer:

y=-6/5x - 1

Step-by-step explanation:

Slope intercept form is y=mx+b so first lets get it into correct order by subtracting the 6x to the other side.

6x-6x+5y=-5-6x

This gives you

5y=-6x-5

Now you need to isolate the y since the 5 is being multiplied by the variable "y" we need to divide to to separate. Divide all terms by 5.

5y/5=-6/5x+(-5)/5

This gives you your final answer:

y=-6/5x - 1

7 0
3 years ago
Read 2 more answers
Divide these polynomials. (8x³ + 2x² - 7x + 2) ÷ (2x - 1)
Novay_Z [31]

Answer:

The answer is letter A.

(8x³ + 2x² - 7x + 2) ÷ (2x - 1)

8x³ + 2x² - 7x + 2 ÷ 2x - 1

(2x-1)(4x²+3x-2)÷2x-1

cancel 2x-1 so that the answer is 4x²+3x-2.

6 0
2 years ago
people with severe hearing loss given a sentence and word recognition test six months after they got implants in their ears the
kirza4 [7]
That would be .82 as 82% is 82/100 so that makes the answer .82
8 0
2 years ago
Will someone help me with this problem please.
lianna [129]

Answer:-5 10 ,13

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Luca had a large container of yogurt with 1 and StartFraction 5 Over 8 EndFraction pounds of yogurt left in it. If a serving of
    14·1 answer
  • Marion is making trail mix for a group camping trip. She buys 3 pounds of granola for $3 per pound, and 0.75 pounds of raisins f
    9·2 answers
  • 3 1/4 x 5 write answer in simplest form please show work
    6·1 answer
  • Simplify the expression given below.<br><br> x+2/ 4x^{2} +5x+1 *4x+1/2x-4[/tex]
    7·1 answer
  • terry ate 4 less cookies than jack. alvin ate four times as many cookies as terry. if x represents the number if cookies that ja
    12·1 answer
  • Need t in degrees not just solve for t
    12·1 answer
  • Multiply n by 3 than square the result
    9·2 answers
  • We add the scale factor to each length of an image to get the scaled copy.<br> -True or False?
    7·1 answer
  • HELP ME PLSSS <br> I kinda know what to do but at the same time, I'm so lost right now. help
    8·1 answer
  • Please solve this thank you!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!