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ahrayia [7]
2 years ago
10

Please somone help me 40 points will mark brainliest

Mathematics
2 answers:
cestrela7 [59]2 years ago
7 0

Answer:

the answer is in the picture below

Step-by-step explanation:

Andreas93 [3]2 years ago
4 0

1. We're doubling to go from ABDC to A'B'D'C'.  So AB=15 becomes A'B'=30 cm and BD=8 becomes B'C'=16 cm.  Please see attached figure.

2. We have equal ratios

40:50:60 = 30:37.5:45

Let's check that.  30/40=3/4, 37.5/50=3/4, 45/20=3/4, all ratios the same, similar triangles.

We see the meets of the longest side and the shortest side are B and Z respectively.

The meets of the longest side and the medium side are C and X.

The meets of the short side and medium side are A and Y.

Pairing them up we have our

Answer: ABC ~ YZX

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Si n es un número impar, ¿cuál de las siguientes opciones representa un número par? a) 2n +1 b) n (n + 2) c) n + (n-1) e) 2 (n +
emmainna [20.7K]

Answer:

Option E) is correct

If n is an odd number then 2(n+1) represents an even number.

Step-by-step explanation:

Let X=set of all odd numbers

that is X={\{1,3,5,7...}\}

Let Y=set of all even numbers

that is Y={\{2,4,6,8...}\}

Verify that 2(n+1) represents an even number where n is an odd number:

Put n=1 in 2(n+1) we get

2(1+1)=2(2)=4

Put n=3 in 2(n+1) we get

2(3+1)=2(4)=8

Put n=5 in 2(n+1) we get

2(5+1)=2(6)=12

and so on.

From above results we get 2(n+1) represents an even number and is belongs to the set Y when n is an odd number.

Therefore Option E) is correct

If n is an odd number then 2(n+1) represents an even number.

5 0
3 years ago
Two factory plants are making TV panels. Yesterday, Plant A produced 9000 panels. Ten percent of the panels from Plant A and 3%
Gwar [14]

Answer:

Panels produced by Plant B = 12000

Step-by-step explanation:

Let the number of panels produced by plant B be 'x'

Now, according to the given information;

⇒ 9000(\frac{10}{100} ) + x(\frac{3}{100} ) = (9000 + x)(\frac{6}{100} )

⇒ 90000 + 3x = 54000 + 6x

⇒ x = 12000

4 0
3 years ago
Ill mark brainlist plss help
iVinArrow [24]

Answer:

35

Step-by-step explanation:

35 : 14 = 5 : 2

7 0
3 years ago
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Find x on the triangle
iragen [17]

Answer:

(c)

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos42°  = \frac{adjacent}{hypotenuse} = \frac{x}{12}

Multiply both sides by 12

12 × cos42° = x, hence

x ≈ 8.9 → (c)

3 0
2 years ago
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Yvette is conducting two experiments. She is choosing two marbles from a bag that contains 1 pink, 4 purple, 3 blue and 2 white
Llana [10]

Answer:

A

Step-by-step explanation:

(pwease give brainliest :)

8 0
3 years ago
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