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wlad13 [49]
3 years ago
8

In a class test containing 30 questions 2 marks are awarded for every correct answer.

Mathematics
1 answer:
astra-53 [7]3 years ago
4 0

Step-by-step explanation:

If the test has 30 questions each worth 2 points, then the test is worth 60 points. [30 × 2]

Seema got 12 answers correct. If each is worth 2 points, then her 12 correct answers are worth 24 points. [12×2]

Her total score is 24/60.

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The capacity of a cylindrical water tank is 539 litres. If its height is 1.4 meter then find the radius of the base.​
natulia [17]

Answer:

350m

Step-by-step explanation:

  • capacity= volume/1000
  • but we know that volume of cylinder is πr²h so substitute it I'm the volume space
  • then substitute for π as 22/7, h as 1.4 , and also capacity as 539
  • 539= ((22/7)×r²×1.4)/1000
  • when you simplify you get r as 350m
6 0
2 years ago
Nate has $50 to spend at the grocery store. He fills his shopping cart with items totaling $46. At checkout he will have to pay
Deffense [45]

Answer:

yes

Step-by-step explanation:

Find the amount of the sales tax:

46 x 0.06 = 2.76

Add the sales tax to the items total:

46 + 2.76 = 48.76

50 > 48.76

Since $48.76 is less than $50 he has enough money

5 0
3 years ago
I need qestion number d) solution please help me​
natita [175]

Answer:

It is an identity, the proof is in the explanation

Step-by-step explanation:

csc(A)-cot(A)=tan(A/2)

I'm going to start with right hand side

tan(A/2)=(1-cos(a))/(sin(a))                half angle identity

tan(A/2)=1/sin(a)-cos(a)/sin(a)         separate fraction

tan(A/2)=csc(a)-cot(a)                     reciprocal and quotient identities

8 0
3 years ago
What are the next two numbers in the pattern 3,6,5,10,9,18,17.
LenKa [72]
This pattern appears to alternate between doubling and subtracting by 1. 

To get from 3 to 6, we multiply by two.
To get from 6 to 5, we subtract one.
To get from 5 to 10, we multiply by two.
To get from 10 to 9, we subtract one.
To get from 9 to 18, we multiply by two.
To get from 18 to 17, we subtract one.

Therefore, next we need to multiply by two.
17 x 2 = 34
So, the next number is 34.

To find the number after, we subtract one.
34 - 1 = 33
Thus, the number after is 33.

In conclusion, the next two numbers are 34 and 33.
6 0
3 years ago
Read 2 more answers
In a class of 32 boys, 16 passed the
vodka [1.7K]

Answer:

3/8

Step-by-step explanation:

12/32 failled and if you simplify this it means that about 3/8 of the class failled

8 0
3 years ago
Read 2 more answers
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