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denpristay [2]
3 years ago
15

If the data below are represented by a comparative bar chart, the bar representing which of these will be the tallest? Passed Fa

iled Cats 24 26 Dogs 30 28
Mathematics
1 answer:
zhuklara [117]3 years ago
6 0

Answer:

  1. Left-handed Right-handed Boys 15 19 Girls 21 13 Right-handed girls
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4х + 3у = — 2<br> Зу = 4 -x<br> х =?<br> у =?
zlopas [31]

Answer: x=-2, y=2

Step-by-step explanation:

(SUBSTITUTION)

= 4x+4-x=2

x=-2

3y=4 x (-2)

y= 2

3 0
3 years ago
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3n + 9 = 27<br><br> n = ?<br><br> solve for n
Debora [2.8K]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
Find the mean, the median, and all modes for the data in the given frequency distribution. (Round your answers to one decimal pl
kvasek [131]

Answer: Mean = 7.8

              Median = 9

             Mode = 2,9

Step-by-step explanation: <u>Mean</u> is the average value of a data set. Mean from a frequency table is calculated as:

E(X)=\frac{2(10)+3(9)+9(10)+11(7)+12(3)+15(4)+16(3)}{10+9+10+7+3+4+3}

E(X) = 7.8

Mean for the given frequency distribtuion is 7.8.

<u>Median</u> is the central term of a set of numbers. Median in a frequency table is calculated as:

1) Find total number, n:

n = 10 + 9 + 10 + 7 + 3 + 4 + 3 = 46

2) Find position, using: \frac{n+1}{2}

\frac{n+1}{2}=\frac{47}{2} = 23.5

Median is in the 23.5th position.

3) Find the position by adding frequencies: for this frequency distribution, 23.5th position is 9

Median for this frequency distribution is 9.

<u>Mode</u>  is the number or value associated with the highest frequency.

In this frequency distribution, 2 and 9 points happen 10 times. So, mode is 2 and 9.

Mode for this distribution is 2 and 9.

7 0
3 years ago
F(x)=|x+3|-1 range and domain
KiRa [710]

Hey there! :)

Answer:

Domain: (-∞, ∞)

Range: [-1, ∞)

Step-by-step explanation:

This is an absolute-value function.  (Graphed below) The vertex is at (-3, -1) which consists of the minimum y-value of the function. Therefore:

Domain: (-∞, ∞)

Range: [-1, ∞)

8 0
3 years ago
Question is in the picture
ANTONII [103]

Answer:

She forgot to flip the inequality sign when dividing both sides by -4

8 0
3 years ago
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