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Step2247 [10]
4 years ago
5

HELP pretty please! What is the theoretical probability of the event that a family with two children has two boys?

Mathematics
1 answer:
amid [387]4 years ago
7 0
 Your answer would be .a.
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Polygon ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to create polygon A′B′C′D′. If the endp
liq [111]

Answer:

A'B' = 34 units

Step-by-step explanation:

Since the dilatation is centred at the origin , then multiply the coordinates by 2

A' = (2(0), 2(- 7) = (0, - 14 )

B' = (2(8), 2(8) = (16, 16)

Calculate the length using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = A'(0, - 14) and (x₂, y₂ ) = B'(16, 16)

d = \sqrt{(16-0)^2+(16+14)^2}

   = \sqrt{16^2+30^2}

   = \sqrt{256+900}

   = \sqrt{1156}

   = 34

3 0
3 years ago
What is the line of this slop :( ?
Rasek [7]
The slope is 2

Find two points on the line then do the slope formula. That’s how I got my answer. Hope this helps!
3 0
3 years ago
Read 2 more answers
A physical education class is running a mile. The teacher has set a goal of 12 minutes to complete the mile. Students
Illusion [34]

Answer:

Isaac is 26

Simon is 24

if 8 is 4 I.e 8 divide by 4 is 2

therefore 1 minute is 2 scores

Isaac :13 x 2=26

(do the same to Simon to get his score)

6 0
3 years ago
Help Please 100 point's + Brainly.est 8th grade Math Look at the photos below and answer them PLEASE
CaHeK987 [17]

Part 1.

A is.

45 and 34 wood pieces left

B is.

It takes 11 cause 100-89=11 and 11+89=100 and it keeps subtracting 11.

C is.

I dont understand the question(sorry)

D is.

At least 9 shelves,

100-11=89

89-11=78

78-11=67

67-11=56

56-11=45

45-11=34

34-11=23

23-11=12

12-11=1

And you would have 1 wood piece remaining!!

8 0
3 years ago
Read 2 more answers
Catalan drove 210 miles on her vacation. She drove an average of 1.4 times faster than the second 105 miles of her trip and she
jok3333 [9.3K]
Logan, the way you have phrased this question makes it a bit hard to follow.  I'm going to take the liberty of paraphasing it:

"Catalan drives an average of 1.4 times faster during the first 105 miles of her trip than she does during the second 105 miles."

As we are told, let X represent her speed during the first 105 miles of her trip.  She drives more slowly during the second 105 miles.  Thus, her speed during the 2nd 105 miles is X/1.4.

Remember:  distance = (rate)(time), or time = (distance)(rate)

We need to determine an expression for the time she spends driving.  Let T1 be the time required to drive 105 miles at speed X mph and T2 be the time required to drive 105 miles at speed (X/1.4) mph.

What is the total time required to drive these 210 miles?

Total time = (time required to drive 105 miles at X mph) + (time required to drive 105 miles at X/1.4 mph).

This gives you TIME SPENT DRIVING as a function of X, her speed during the first 105 miles of driving.
4 0
3 years ago
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