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victus00 [196]
3 years ago
11

Please help!!! no links or I will report!!! #6

Mathematics
1 answer:
Karolina [17]3 years ago
3 0

Answer:

(A) 33 1/3%

Step-by-step explanation:

it looks like there are 15 total people, and it's asking for the probability of a member <u>over</u> 40 being chosen.

Over means that 40 should be excluded

there are 5 people over 40 (43, 45, 50, 54, 58), which means the probability would be 5/15

5/15 = 1/3 ≈ 33 1/3%

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Which is true?<br><br>3+2=4+1 <br><br>1+2=3+3<br><br>0+3=3+1​
julsineya [31]

3 + 2 = 4 + 1 is true

1 +2 = 3 + 3 and 0 + 3 = 3+1 is not true

7 0
3 years ago
In a class 26 of students, 17 have a brother and 7 have a sister. There are 4 students who do not have any siblings. What is the
Anni [7]
Number of students = 26
Number of students without siblings = 4 
⇒ Number of students with at least one siblings = 26 - 4 = 22
 
Number of students with brothers = 17
Number of students with sisters = 7
⇒ Number of students with both a brother and a sister = 17 + 7 - 22 = 2

P(student has a brother, given that they have a sister) = 2/7

Answer: 2/7
6 0
3 years ago
Here is an equilateral triangle. The length of each side is units. A height is drawn. In an equilateral triangle, a line drawn f
Temka [501]

1. Height of the equilateral triangle is: √3 units

2. Area of the equilateral triangle = √3 units²

3. Area = √3/4 x², when each side is x.

<h3>What is an Equilateral Triangle?</h3>

A triangle that has all its three sides equal in length, is referred to as an equilateral triangle.

1. Given the each side measures 2 units, and h is the height, applying the Pythagorean theorem, we would have:

h = √(2² - 1²)

h = √(4 - 1)

h = √3

2. Area of the equilateral triangle = 1/2bh = 1/2(2)(√3)

Area of the equilateral triangle = √3 units²

3. If x is the side length of the equilateral triangle, we would have:

height (h) = √[x² - (x/2)²] = √[x² - x²/4] = √(3x²/4) = √3/2x

Area = 1/2bh = 1/2(x)(√3/2x) = √3/4 x²

Learn more about equilateral triangle on:

brainly.com/question/15294703

#SPJ1

3 0
2 years ago
Patti puts 40 marbles in a bag. Each marble has 3 grams. What us the total mass of the bag of marbles? in grams?
JulijaS [17]
I believe that the answer is 120 marbles.<span />
4 0
3 years ago
Read 2 more answers
Which of the following describes the parabola with the equation y = −x2 − 3x + 6?
seropon [69]

Answer:

C) The axis of symmetry is x = −1.5 and the vertex is (−1.5, 8.25).

Step-by-step explanation:

The axis of symmetry is x = − b/2a

= -(-3) / 2(-1)

= 3/(-2)

= -1.5

the vertex => x = -1.5

y= -(-1.5)²-3(-1.5)+6 =

-2.25 +4.5+6= 8.25

4 0
3 years ago
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