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Alexxandr [17]
2 years ago
9

6 The bar chart shows the A-level mathematics grades achieved by some students one year. A-level grades 120 100- 80 Frequency 60

40 20 om 0 A* A B D E U С Grade a How many students achieved grade B or C? b How many students took A-level mathematics? c Estimate the probability that a student will achieve grade B or C next year.​
Mathematics
1 answer:
skelet666 [1.2K]2 years ago
5 0

Answer:

very hard very hard

Step-by-step explanation:

other will answer it

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A polygon has a perimeter of 36 inches. Each side of the polygon has exactly 12 inches long. What is the name of the polygon tha
Nikitich [7]

Answer:

Equilateral Triangle

Step-by-step explanation:

Since each side is the same length, divide the perimeter by side length to get the number of sides.

36in ÷ 12in = 3

A triangle has 3 sides.

6 0
3 years ago
Read 2 more answers
Write an integer for each situation.(In this exercise you must Wirte the + and Negative signs) 1.) A profit of $12 2.) 1,440 fee
goldenfox [79]
1)  + $12, since it is a profit

2) -1440 ft,  since it is below the sea level

3) - 22°F,    since it is below

4) + 31 yards,  since it is a gain.
7 0
3 years ago
Find all the square roots of x2 ≡ 53 (mod 77)
Nikolay [14]

Answer:

x=\pm\sqrt{77n+53}

Step-by-step explanation:

We have been given an equivalence equation x^2\equiv 53\text{ (mod } 77). We are asked to find all the square root of the given equivalence equation.

Upon converting our given equivalence equation into an equation, we will get:

x^2-53=77n

Add 53 on both sides:

x^2-53+53=77n+53

x^2=77n+53

Take square root of both sides:

x=\pm\sqrt{77n+53}

Therefore, the square root for our given equation would be x=\pm\sqrt{77n+53}.

3 0
3 years ago
3/8 + 1/4 + 1/2 - 2/3 =
Nostrana [21]

Answer:

\frac{11}{24}

Step-by-step explanation:

3/8 + 1/4 + 1/2 - 2/3

- > 1/4 =  2/8

3/8 + 2/8 + 1/2 - 2/3

5/8 + 1/2 - 2/3

- > 1/2 = 4/8

5/8 + 4/8 - 2/3

9/8 - 2/3

- > LCM of 8,3: 24

- > 9/8 = 27/24

- > 2/3 = 16/24

27/24 - 16/24

11/24

Hope this helps you.

7 0
3 years ago
!!!!!please hurry!!!!!
Finger [1]

Answer:

  y = ln(x) -5

Step-by-step explanation:

To translate the graph of a function 5 units down, subtract 5 from the function value.

ln(x) is translated 5 down when you make it ln(x) -5.

y = ln(x) -5

4 0
4 years ago
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