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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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Which equation listed below, when solved, shows how to find the circumference of a circle if the diameter is 6 inches? Use 3.14
siniylev [52]
The pertinent formula for the circumference of a circle with diameter d is

C =pi*d.

Thus, if the dia. is 6 inches, the circumf. is C = 6pi inches.  Alternatively, if we let pi = 3.14, the circumf. is   C = 6*3.14   (answer A).
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3 years ago
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A little boy mass 10kg is placed at a height of 2cm above the ground,what is the potential energy of the boy with reference to t
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Potential gravitational energy:

mgh

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3 years ago
Omar says that the least common multiple of 9 and 6 is 54. Which is true about Omar's statement?
Damm [24]

Hey there!

Let's pull out the multiples of each number and see which ones fall in line first.

9,18

6,12,18

The LCM is 18. Therefore, answer B and D are incorrect. A is incorrect because 9 * 6 is 54. Therefore, the answer is C.

I hope this helps!

5 0
3 years ago
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"The product of four and a<br> number is more than ten."<br> ( write as an inequality thx)
lubasha [3.4K]

Answer:

4x > 10

Step-by-step explanation:

4x > 10

6 0
3 years ago
Find the equation of the line through (6,8) which is parallel to the line y=4x−6.
Ratling [72]

Answer:

y=4x-16

Step-by-step explanation:

Hi there!

<u>What we need to know:</u>

  • Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope of the line and b is the y-intercept (the value of y when x is 0)
  • Parallel lines always have the same slope

<u>1) Determine the slope (m)</u>

<u />y=4x-6<u />

4 is in the place of m, making it the slope. Because parallel lines have the same slope, the slope of the line is therefore 4. Plug this into y=mx+b:

y=4x+b

<u>2) Determine the y-intercept (b)</u>

y=4x+b

Plug in the given point (6,8) and solve for b

8=4(6)+b\\8=24+b

Subtract 24 from both sides to isolate b

8-24=24+b-24\\-16=b

Therefore, the y-intercept of the line is -16. Plug this back into y=4x+b:

y=4x-16

I hope this helps!

3 0
3 years ago
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