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xz_007 [3.2K]
3 years ago
10

in a class of 45 students, 25 students failed Maths, 20 students failed Physics, and students failed both . A student is selecte

d at random.
Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

What is the question?

Step-by-step explanation:

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A line with a slope of 1/3 passes through the point (-8,9). What is its equation in point-slope form?
BARSIC [14]

Answer:

y - 9 = 1/3 (x+8)

Step-by-step explanation:

point slope form is y - y1 = m (x - x1)

8 0
3 years ago
Newton's first law of motion applies only to objects that are already moving.<br> O True<br> O False
larisa [96]

Answer:

false

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The sum of the first n consecutive even numbers can be found using S=n2+n, where n≥2. What is the value of n when the sum is 42?
lawyer [7]

Answer:

  • C. 6

Step-by-step explanation:

<u>Given</u>

  • S = n² + n
  • S = 42, n = ?

<u>Substitute and solve for n:</u>

  • 42 = n² + n
  • n² + 2*1/2n + 1/4 = 42.25
  • (n + 0.5)² = 42.25
  • n + 0.5 = √42.25
  • n + 0.5 = 6.5
  • n = 6

Correct option is C

5 0
2 years ago
Read 2 more answers
Which expressions are equivalent to -2(5x-1)+7(5x-1)-3(-5x+1)
blondinia [14]

Answer:

x=1/5

Step-by-step explanation:

To solve this question we will have to open the bracket first

So let's go back to the given question

-2(5x-1)+7(5x-1)-3(-5x+1)

We can actually equate the equation to zero

Let's solve

-10x+2+35x-7+15x-3=0

Let's collect like terms

-10x+35x+15x=-2+7+3

40x=8

Let's make x the subject of formula by dividing both sides by 40

x=1/5

So the final answer is 1/5

8 0
2 years ago
45% of what distance is 135 miles
horrorfan [7]
300 miles. Hope it helps
8 0
3 years ago
Read 2 more answers
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