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Lelu [443]
3 years ago
5

A teacher randomly chooses a two-person leadership team from a group of four qualified students. Three of the students, Sandra,

Marta, and Jane, are girls. The fourth student, Franklin, is a boy. Using the sample space of possible outcomes listed below, where each student is represented by the first letter of his or her name, answer each of the following questions.
Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer:

What is P(A), the probability that the first student is a girl? (3/4)

What is P(A), the probability that the first student is a girl? (3/4)What is P(B), the probability that the second student is a girl? (3/4)

What is P(A), the probability that the first student is a girl? (3/4)What is P(B), the probability that the second student is a girl? (3/4)What is P(A and B), the probability that the first student is a girl and the second student is a girl? (1/2)

The probability that the first student is a girl is (3/4), likewise for the 2nd 3rd and 4th it's still (3/4). The order you pick them doesn't matter.

However, once you're looking at P(A and B) then you're fixing the first position and saying if the first student is a girl what's the probability of the second student being a girl.

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kupik [55]

Answer:

360\ cm^2

Step-by-step explanation:

<u>Step 1:  Determine the area of the bottom rectangle</u>

A = l * w

A = 10\ cm * 12\ cm

A = 120\ cm^2

<u>Step 2:  Determine the area of the back rectangle</u>

A = l * w

A = 10\ cm * 5\ cm

A = 50\ cm^2

<u>Step 3:  Determine the area of the top rectangle</u>

A = l * w

A = 10\ cm * 13\ cm

A = 130\ cm^2

<u>Step 4:  Determine the area of the triangle</u>

A = \frac{h*b}{2}

A = \frac{5\ cm * 12\ cm}{2}

A = \frac{60\ cm^2}{2}

A = 30\ cm^2

<u>Step 5:  Determine the surface area</u>

120\ cm^2 + 50\ cm^2 + 130\ cm^2 + 2(30\ cm^2)

360\ cm^2

Answer: 360\ cm^2

4 0
2 years ago
Help me please 2. You learn from your science teacher that water expands when you freeze it. The next time that you freeze your
harkovskaia [24]
You would be correct. Direct reasoning you already have your teacher who told you what would happen you are simply doing a reaction because of her.
3 0
3 years ago
What is the area of the triangle?<br> 16<br> 8<br> 10
sertanlavr [38]

Answer:

64

Step-by-step explanation:

Find the area of both triangles inside the bigger triangle and add them together.

Use the Pythagorean theorem to find the missing length of the leg in the smallest triangle:

a² + b² = c²

8² + b² = 10²

64 + b² = 100

36 = b²

6 = b

Calculate the area of the smaller triangle:

1/2(<em>b</em>x<em>h</em>)

1/2(6 x 8)

1/2(48)

24

Calculate the area of the bigger triangle:

<em>We know that the longer leg is 10 units because we were able to subtract the length of the smaller triangle's leg from 16.</em>

1/2(<em>b</em>x<em>h</em>)

1/2(10 x 8)

1/2(80)

40

Add both areas to find the area of the largest triangle:

40 + 24 = 64

3 0
2 years ago
Please help me I will mark brainliest. I’m just double checking to make sure I got it correct
ycow [4]

Answer:

the length of c is 18.43909

Step-by-step explanation:

pythagorean therorem

3 0
2 years ago
.Write in standard form. 4h - 6(5+7h)
Anarel [89]

Answer:

-38h-30

4h+(−6)(5)+(−6)(7h)

=4h+−30+−42h

=(4h+−42h)+(−30)

=−38h+−30

5 0
2 years ago
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