Maths Group11
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The main purposes of this channel are to:
1. 📝 Provide various Mathematics questions and exercises.
2. 📚 Share and publish different educational books.
3. 📖 Provide useful short notes and study materials.

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I_______________ to that hotel so many times although I always get disappointed with their service.
Anonymous Quiz
17%
like being
12%
was
53%
have been
18%
had been
They had to get together at six in the morning and when we got up at 5:45 a.m, we thought we wouldn't make it. However, we ___________ to get there before they left.
Anonymous Quiz
44%
were able
23%
are able
24%
could be able
9%
must be able
Let me go and check if the car is ready. It _________ when I came this morning.
Anonymous Quiz
19%
intended to be fixed
24%
might be fixed
22%
will have to be fixed
35%
was being fixed
If the ratio of the lengths of any two corresponding sides of two similar polygons is k, then:
Anonymous Quiz
32%
The ratio of their perimeters is 1/k².
29%
The ratio of their areas is 2k².
32%
The ratio of their perimeters is k
7%
The ratio of their areas is 1/2k²
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Two triangles are similar. The sides of one are three times as long as the sides of the other. What is the ratio of the areas of the smaller to the larger?
Anonymous Quiz
37%
1:3
16%
1:6
39%
1:9
9%
1:27
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How many lines of symmetry does a circle have?
Anonymous Quiz
10%
1
14%
2
69%
Infinite number
8%
Can not be known
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How many lines of symmetry does a regular hexagon have?
Anonymous Quiz
5%
5
82%
6
5%
8
8%
3
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What is the perimeter of regular hexagon whose radius is 6cm ?
Anonymous Quiz
56%
36 cm
13%
6 cm
19%
36√3 cm
12%
6√3 cm
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Grade 9 teacher guide Old books.
Biology some questions from grade 9 unit 3 Old book.

1. Which of the following is the primary source of energy for the human body?
a) Proteins
b) Carbohydrates
c) Fats
d) Vitamins
2. Which of the following nutrients is essential for building and repairing body tissues?
a) Carbohydrates
b) Lipids
c) Proteins
d) Minerals
3. Which of the following vitamins is fat-soluble and important for vision?
a) Vitamin C
b) Vitamin B12
c) Vitamin A
d) Vitamin K
4. A deficiency in which mineral can lead to anemia?
a) Calcium
b) Sodium
c) Iron
d) Potassium
5. Which of the following is a good source of dietary fiber?
a) White bread
b) Processed meats
c) Fruits and vegetables
d) Dairy products
6. The process by which the body breaks down food into smaller molecules that can be absorbed is called:
a) Respiration
b) Circulation
c) Digestion
d) Excretion
7. Which of the following enzymes primarily breaks down carbohydrates in the mouth?
a) Pepsin
b) Lipase
c) Amylase
d) Trypsin
8. Essential amino acids are those that:
a) The body can produce in sufficient amounts.
b) Are only found in plant-based foods.
c) Must be obtained from the diet.
d) Are broken down into fatty acids.
9. Which of the following is a major function of water in the body?
a) Providing energy
b) Building strong bones
c) Transporting nutrients and waste products
d) Clotting blood
10. Which of the following is a micronutrient?
a) Glucose
b) Starch
c) Vitamin D
d) Glycogen
❤7
For what angle of project is the range equal to maximum height?
Anonymous Quiz
25%
tan(θ) = 4
16%
sin(θ) = 1/2
13%
cos(θ) = 3
46%
tan(θ) = 1 or θ = 45°
❤1
Which of the following general terms is not an arithmetic sequence?
Anonymous Quiz
10%
{an} = 3n-7
58%
{an} = n² + 3
14%
{an} = 2n
18%
{an} = 3n/2
Which of the following is equal to cot(1755°) ?
Anonymous Quiz
14%
1
50%
-1
25%
√3
11%
-√3
❤8
What is the reference angle of -40°
Anonymous Quiz
33%
320°
30%
40°
27%
-320°
10%
60°
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