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faltersainse [42]
3 years ago
12

Find x and y plz help :(

Mathematics
2 answers:
Zolol [24]3 years ago
6 0
D :) i’m just here for the points
liraira [26]3 years ago
5 0

Answer:

D. x = 5.4, y = 6.67

Step-by-step explanation:

The triangles are similar as per problem description, so the ratios match:

y/5 = 4/3

x/3 = 9/5

let's solve:

y/5 = 4/3

3y/5 = 4

3y = 20

y = 6.(6)

x/3 = 9/5

5x/3 = 9

5x = 27

x = 5.4

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6. The base of a triangular field is three times its height. If the cost of cultivating the field
dedylja [7]

Answer:

base = 519.62, height = 173.21 m

Step-by-step explanation:

Let the base and height of the triangle be represented by b and h respectively.

Thus,

b = 3h

Area of a triangle = \frac{1}{2} x base x height

For the given triangle,

area = \frac{1}{2} x b x 3h

       = \frac{3}{2}bh

Area of the triangle = \frac{3}{2}bh

To determine the number of hectares,

36 per hectare = 486

hectare = \frac{486}{36}

             = 13.5

numbers of hectares = 13.5

Area of the hectares = number of hectares x 10 000 m²

                                   = 13.5 x 10 000

                                  = 135000

Total area of the hectares = 135 000 m²

So that,

area of the hectares = area of the triangle

area of the triangle = \frac{3}{2}bh

135 000 = \frac{3}{2}bh

270000 = 3bh

bh = \frac{270000}{3}

     = 90000

bh = 90000

But, b = 3h

3h x h = 90000

3h^{2} = 90000

h^{2}  = \frac{90000}{3}

     = 30000

h = \sqrt{30000}

  = 173.2051

h = 173.21 m

So that,

b = 3 x 173.2051

  = 519.6153

b = 519.62

Therefore, the base of the triangle is 519.62 m, while the height is 173.21 m.

7 0
4 years ago
F(x) = x^2. What is g(x)?
Murrr4er [49]
C would be your answer i hope i helped you :) sorry if i’m incorrect. i’m not sure
6 0
2 years ago
A small college has 800 students, 10% of which are left-handed. Suppose they take an SRS of 8 students.
Margarita [4]

Answer:

(8/2)(0.10)^2(0.90)^6

Step-by-step explanation:

Khan

3 0
3 years ago
A class of 32 children need a pair of boots each for their school trip. How many children's boots will there be in total?
antiseptic1488 [7]

Answer: 64 boots in total

Step-by-step explanation:

Since a pair is 2, and there are 32 students that need a pair each, 32 x 2 = 64.

4 0
2 years ago
Choose the set of numbers with an average of 45.
Troyanec [42]
A.
30+40+50+60= 180

180 divided by 4equals 45

Their fore the answer is A

8 0
4 years ago
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