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Natali5045456 [20]
3 years ago
12

the length of shadow of a house having 30m height is 30 root 3m find the length of shadow of the house having the height of 40 r

oot 3m at the same time​
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:

Height(P)=30

base(B)=30√3

we know

TanA= P/B= 30/30√3

TanA =√3

A =60

now

Tan 60 = P/B

√3=40√3/B

B=40

Step-by-step explanation:

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What are the coordinates of Point A after the
Flura [38]

Answer:

A' (-3,7)

B' (0,10)

C' (12,10)

D' (-2,-4)

Step-by-step explanation:

A' (-6+3 , 3+4) = (-3,7)

B' (-3+3 , 6+4) = (0,10)

C' (9+3 , 6+4) = (12,10)

D' (-5+3 , -8+4) = (-2,-4)

5 0
3 years ago
Is 3(x + 1)2 = (3x + 3)2 an identity? Explain and show your reasoning.
Scilla [17]

Answer:

YES

Step-by-step explanation:

The equation, 3(x + 1)2 = (3x + 3)2, would be an identity if the equation remains true regardless of the value of x we choose to plug in into the equation.

Let's find out if we would always get a true statement using different value of x.

✍️Substituting x = 1 into the equation:

3(x + 1)2 = (3x + 3)2

3(1 + 1)2 = (3(1) + 3)2

3(2)2 = (3 + 3)2

12 = 12 (TRUE)

✍️Substituting x = 2 into the equation:

3(x + 1)2 = (3x + 3)2

3(2 + 1)2 = (3(2) + 3)2

3(3)2 = (6 + 3)2

18 = 18 (TRUE)

✍️Substituting x = 3 into the equation:

3(x + 1)2 = (3x + 3)2

3(3 + 1)2 = (3(3) + 3)2

3(4)2 = (9 + 3)2

24 = 24 (TRUE)

Therefore, we can conclude that the equation, 3(x + 1)2 = (3x + 3)2, is an identity.

8 0
3 years ago
Which statements are true regarding the symmetry of the isosceles trapezoid? Check all that apply.
Ad libitum [116K]

Answer:

1, 3, and 5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please hurry.
Pie

Answer:

3i-1

Step-by-step explanation:

2+3i-3

3i-1

4 0
3 years ago
PLZZZZZZZZZZZZZZZZ HELP
Slav-nsk [51]

Answer:

The first box in the girl row is 18, the second one in the boy row is 8, and the bottom one is also 18.

Step-by-step explanation:

To get 81 to 9, you have to divide by 9, which means you have to do the same to 72. You get the ration 9 to 8, 9 being girls and 8 being guys. Then to get from 8 guys to 16, you have to multiply by 2, which means you do the same to 9 and get the answer of 18 girls. Hope this helps :)

5 0
3 years ago
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