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4 years ago

5

A couple that already has two daughters wants to have another child. the couple is hoping for a son. what is the probability tha

t the couple\'s third child will be a boy? record your answer as a percentage.

1 answer:

Natali [406]4 years ago

8 0

Answer: 50%

Explanation:

A child is either a boy or a girl
P(a boy) = 1/2 = 50%

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Step-by-step explanation:

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3 years ago

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Which ordered pair would form a proportional relationship with the point graphed below?

vampirchik [111]

Hey there! I'm happy o help!

To get from 60 to -20, you multiply by -1/3. This is our constant of proportionality. Let's see which points below follow this.

-10(-1/3)=3 1/3≠30

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Therefore, the correct answer is (-30,10).

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3 years ago

For what values of does the equation (2 + 1)^2 + 2 = 10 − 6 have two real and equal roots?

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Answer:

(2 + 1)^2 + 2 = 10 - 6

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Step-by-step explanation:

The left side

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3 years ago

Candita uses 1 of an ounce of green paint each time she draws a green line on her painting. She draws a total of 7 green

omeli [17]

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3 years ago

On a coordinate plane, triangles R S T and L M N are shown. Triangle R S T has points (5, 5), (2, 1), and (1, 3). Triangle L M N

ivolga24 [154]

Answer:

LMN has a larger area

Step-by-step explanation:

Given

RST

$R =(5,5)$

$S= (2,1)$

$T = (1,3)$

LMN

$L = (0,-1)$

$M= (2,-4)$

$N= (-2,-3)$

Required

Compare both areas

The area of triangle is:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

For RST, we have:

$Area = \frac{1}{2}|5*1 - 2*5 + 2*3 - 1*1 + 1*5 - 5*3|$

$Area = \frac{1}{2}|-10|$

Remove absolute signs

$Area = \frac{1}{2}*10$

$Area = 10$

For LMN, we have:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

$Area = \frac{1}{2}|0*-4-2*-1+2*-3--2*-4--2*-1-0*-3|$

$Area = \frac{1}{2}|-14|$

Remove absolute signs

$Area = \frac{1}{2}*14$

$Area = 7$

<em>By comparing both areas, we can conclude that LMN has a larger area</em>

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3 years ago