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Ludmilka [50]
4 years ago
10

Can someone help me ​

Mathematics
2 answers:
V125BC [204]4 years ago
5 0

Step-by-step explanation:

k(-5)= 6.(-5)+100

=30 + 100

=70

Stolb23 [73]4 years ago
5 0

Answer:

70

Step-by-step explanation:

We can substitue -5 in for x:

k(-5) = 6(-5) + 100 = 70.

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The data represent the age of world leaders on their day of inauguration. Find the​ five-number summary, and construct a boxplot
Mumz [18]

Answer:

Minimum value = 43, Q_1=52, Q_2=Median=61, Q_3=67, Maximum value = 69.

Distribution is negative skewed.

Step-by-step explanation:

The given data set is

44, 43, 67, 68, 57, 65, 52, 62, 69, 54, 53, 61, 67, 48, 65​

Arrange the data in ascending order

43, 44, 48, 52, 53, 54, 57, 61, 62, 65, 65, 67, 67, 68, 69

Divide the data in 4 equal parts.

(43, 44, 48), 52, (53, 54, 57), 61, (62, 65, 65), 67, (67, 68, 69)

Minimum value = 43

Q_1=52

Q_2=Median=61

Q_3=67

Maximum value = 69

Starting and end point of box plot represent the minimum and maximum value respectively. Box starts from the first quartile to the third quartile. A vertical line goes through the box at the median.

The shape of the distribution.

Normally distributed: If Q_3-Q_2=Q_2-Q_1

Positive skew: If Q_3-Q_2>Q_2-Q_1

Negative skew: If Q_3-Q_2

For the given data set

Q_3-Q_2=67-61=6

Q_2-Q_1=61-52=9

Since Q_3-Q_2, therefore the given distribution is negative skewed.

5 0
4 years ago
A board 12 3 4 feet long is cut so that 9 7 8 feet are left. What length of the board was cut off? A) 2 1 2 ft B) 2 7 8 ft C) 3
Papessa [141]

Answer:

B 2 7/8

Step-by-step explanation:

12 3/4 - 9 7/8 = 2 7/8

5 0
3 years ago
What ordered pair represents the y-intercept of the graph y = 2x - 3?
Rudik [331]

Answer:

C. (0,-3)

Step-by-step explanation:

y = 2x - 3

We only need to focus on "- 3" because it represents "b" of the equation y = mx + b.

Since it is a y intercept, the coordinate must be at the y axis.

So,

x = 0

y = -3

(0,-3)

3 0
4 years ago
A local humane society houses 300 animals the ratio of cats to all animals is 7 : 15. Write a proportion that gives the number o
Ivahew [28]
If we have 300 animals total, and the ratio of cats to all animals is 7 : 15 or 7/15, we can multiply that fraction/ratio by the total, so 300 * 7 /15 = 20 * 7 = 140.
6 0
4 years ago
What the explicit formula of 3 5 7 9
SIZIF [17.4K]

Answer:

a_{n}=3+2(n-1)

Step-by-step explanation:

Given:

The given sequence is 3, 5, 7, 9

The difference between the second and first term is 5 - 3 = 2

The difference between the third and second term is 7 - 5 = 2

The difference between the fourth and third term is 9 - 7 = 2

So, there is a common difference of 2. Thus a sequence which has the same difference is known as an arithmetic sequence.

The explicit formula to determine the n^{th} term of an arithmetic sequence is given as:

a_n=a_1+(n-1)d

Where, a_1\rightarrow 1^{st}\ term, d\rightarrow \textrm{common difference}

Plug in 3 for a_1 and 2 for d. This gives,

a_{n}=3+(n-1)\times 2

Therefore, the explicit formula to represent the given sequence is:

a_{n}=3+2(n-1)

7 0
4 years ago
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