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Papessa [141]
3 years ago
13

Are the following equivalent?

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

yes

Step-by-step explanation:

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Hello please help me! There are 3 questions, I will give brainliest!
Shalnov [3]

Answer:

1) There are 13 students in Jerry's study.

2) There are 39 students in Kathy's study.

3) Jerry's study is more trustworthy!

Step-by-step explanation:

1) Jerry's study is the one with the dot plot.

Now, the number of students is calculated by adding the total number of dots in the plot.

We have a total of 13 dots.

Thus, there are 13 students in Jerry's study.

2) Kathy's study is the one with the histogram.

The total number of students is gotten by adding the corresponding number of students on the y-axis for each range of distance on the x-axis.

Total number of students = 9 + 11 + 7 + 12 = 39 students

3) Jerry's study where he used a dot plot is likely to be more trustworthy because it gives exact values of the number of students for each distance represented whereas, Kathy's study where she used a histogram doesn't give exact values but just gives a range of distances for a particular number of people.

4 0
3 years ago
The sum of the ages of dauda and his brother is 2. Five years ago dauda was 3times as old as his brother . How old are they now
Aloiza [94]

Answer:

dauda = x \\ his \: brother = y \\ x + y = 2 \:  \:  \: (i) \\ 5(3x + y) = 5 \:  \:  \: (ii) \\ 15x + 5y = 5

I don't really remember this very well, because it confusing me

8 0
2 years ago
Miko filled two tanks with water. The ratio of the amount of water in Tank A to Tank B is 3 : 2. The total amount of water in bo
Anna71 [15]

Step-by-step explanation:

answer is in the above picture

6 0
2 years ago
Picture attachment below
alex41 [277]

Answer:

69.08

Step-by-step explanation:

round from 69.115

7 0
2 years ago
Please I need help
Dimas [21]

Answer:

Step-by-step explanation:

The directrix is a vertical line, so the parabola is horizontal. The focus lies to the left of the directrix, so the parabola opens to the left.

For a left-opening parabola:

x = a(y-k)²+h,

a < 0,

vertex (h,k)

focal length p = 1/|4a|

focus (h-p, k)

directrix: x=h+p

Apply your data

focus (1,-4)

directrix x=2

vertex (1.5,-4).

focal length p = 0.5

a = -1/|4p| = -½

x = -½(y-2)²+ ½

8 0
2 years ago
Read 2 more answers
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