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nikitadnepr [17]
4 years ago
5

Is this correct??please help​

Mathematics
1 answer:
maw [93]4 years ago
8 0

Answer:

Step-by-step explanation:

All the following answers are correct 1:=142.5 2:=165 3:=153.75 ^2m You got them all right Conratulations.

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Trapezoid be classified as a parallelogram
sleet_krkn [62]
Yes, a trapezoid can be classified as a parallelogram. 
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3 years ago
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This is geometry! Help me please
Crazy boy [7]

Answer:

m<GFC = 149°

Step-by-step explanation:

m<GFC = m<C + m<CDF (exterior angle theorem)

Substitute

12x - 7 = 26 + 8x + 19

Subtract 8x from each side

12x - 7 - 8x = 26 + 8x + 19 - 8x

4x - 7 = 26 + 19

4x - 7 = 45

Add 7 to both sides

4x - 7 + 7 = 45 + 7

4x = 52

Divide both sides by 4

4x/4 = 52/4

x = 13

✔️m<GFC = 12x - 7

Plug in the value of x

m<GFC = 12(13) - 7 = 149°

8 0
3 years ago
Mrs. Rayne has a phone tree to contact all of her family in the case of an emergency. She
sergij07 [2.7K]

Answer:

In the third round, total family members contacted is 8.

Step-by-step explanation:

Let us assume that Mrs Rayne contacts two members in her family say A and B

or, Total new members contacted in First Round =  A and B  (2 members)

Now, in second Round, A contacts two members say H and G

and B contacts L and M

So, Total new members contacted in second round = H, G ,L and M   (4)

Now, in third round each of the members H, G , L and M contact two people each say

<u>H contacts W, X</u>

<u>G contacts Y, Z</u>

<u>L contacts P, Q</u>

and <u>M contacts R and S</u>

So, Total new members contacted in second round = W, X, Y, Z , P, Q R and S

Hence, in the third round, total family members contacted is 8.

7 0
3 years ago
Read 2 more answers
In 1912, the RMS Titanic, a British passenger ship, sank in the North Atlantic Ocean after colliding with an iceberg. Historians
denpristay [2]

Answer:

The probability that a surviving passenger belongs to second-class cabin passengers is \frac{118}{285} = 0.414

Step-by-step explanation:

Let's define the events:

S: The passenger survived.

NS: The passenger did NOT survive.

C2: The passenger belonged to a second class cabin.

NC2: The passenger did not belong to a second class cabin.

With these events and the information provided the probability are:

P (S) = 711/2201

P(NS) = 1490/2201

P(C2) = 285/2201

P (NC2) = 1495/2201

The probability that a surviving passenger belongs to second-class cabin passengers is:

P (S | C2) = \frac{P(S\bigcapC2)}{P(C2)} = \frac{\frac{118}{2201}}{\frac{285}{2201}} = \frac{118}{285} = 0.414

7 0
4 years ago
Solve the problem, who will solve this will be marked as brainliest ​
laila [671]

<h2>I hope it's helpful for you</h2>

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