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love history [14]
2 years ago
12

Please help

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
8 0

The combined mean of the 14 people's index finger is: 12.75 cm.

<h3>How to Find the Combined Mean?</h3>

Combined mean = [(mean of first group × number of data of the first group) + (mean of second group × number of data of the second group)] ÷ (number of data of the first group + number of data of the second group).

Given the following:

Mean of first group = 7.8

Number of data of the first group = 7

Mean of second group = 17.7

Number of data of the second group = 7

Combined mean = [(7.8 × 7) + (17.7 × 7)] / (7 + 7)

Combined mean = 178.5 / 14

Combined mean = 12.75 cm.

Learn more about combined mean on:

brainly.com/question/16553735

#SPJ1

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Look at this graph:
sergeinik [125]

Answer:

The slope is 3/2.

Step-by-step explanation:

The slope of a line is the relationship between the change of the y-variable and the change of the x-variable. It can be denoted as m = (y2-y1)/(x2-x1), and in layman's terms, it is known as rise over run.

You always can obtain the slope of a line with two points. From this line, for example, I can tell that points (0, 20) and (20, 50) are on the line.

To find the slope of the line, we must first find out what x1, x2, y1, and y2 are. x1 and y1 are the x- and y- coordinates of the first point, and x2 and y2 are the x- and y-coordinates of the second point. With this, we now know that x1 = 0, y1 = 20, x2 = 20, and y2 = 50. We now subsitute this into the formula.

m = (y2-y1)/(x2-x1)

m = (50 - 20)/(20 - 0)

m = (30)/(20)

m = 3/2

Now we know that the slope of the line is 3/2.

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME !! GEOMETRY REFLECTIONS!! PLEASE EXPLAIN
mr_godi [17]
The reflected image 1 is the image of reflected in the mirror line y=0 and the reflected image under y =2 is reflected and the mirror line y is equal to 2 hence the answer is (5,2)...

the number that belongs to the green box is 5

3 0
4 years ago
A community center sells a total of 305 tickets for a basketball game. An adult ticket costs ​$5. A student ticket costs ​$1. Th
julia-pushkina [17]

Answer: student tickets = 208

Adult tickets = 97

Step-by-step explanation:

x + y = 305

x = 305 - y

5x + y = 693

Substituting

5 (305 - y) + y = 693

1525 - 5y + y = 693

-4y = -832

y = 832 / 4 = 208

6 0
3 years ago
A circular park has 36 m diameter. Amira jogs around it 5 times every morning. How far does Amira jog every day?
Sedaia [141]

Answer:

D=565.6m

Step-by-step explanation:

From the question we are told that:

Diameter d=36m

Number of times jogged N=5

Generally the equation for Distance traveled is mathematically given by

D=Circumference of Park * Number of times jogged

Where

Circumference of Park c is mathematically give as

 c=2\pi r

 c=2 3.142*\frac{36}{2}

 c=113.1

Therefore

 D=c*N

 D=113.1*5

 D=565.6m

8 0
3 years ago
Factorise 6x^2 + 11x + 4​
zysi [14]
(3x+4)(2x+1)

If the question asks you to find roots/solutions:

3x + 4 = 0
3x = -4
x = -1.33333333

2x + 1 = 0
2x = -1
x = -0.5
4 0
3 years ago
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