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3 years ago

A state lotto has a prize that pays $1,400 each week for 25 years.

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

8 0

Answer:

Step-by-step explanation:

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I need desperate help PLEASE!!!

koban [17]

Answer:

OPTION B

OPTION D

Step-by-step explanation:

An element in the domain should be mapped to exactly one element on the co-domain. Also, every element in the domain should be mapped to an element in the co-domain.

These two conditions are satisfied to call a relation, a function.

Two different elements in the domain can be mapped to the same element in the co-domain. But the same element in the domain cannot be mapped to two different elements in the co-domain.

A) {(3,7), (3,6), (5,4), (4,7)}

Here, the element '3' in the domain is mapped to two elements 7 and 6. So, it is not a function.

B) {(1,5), (3,5), (4, 6), (6,4)}

This is a function because all the elements in the domain have a unique image in the co-domain. So, this is a function.

C) {(2,3), (4,2), (4,6), (6,4)}

Here, the element '4' in the domain is again mapped to two different elements. Hence, it cannot be a function.

D) {(0,4), (3,2), (4,2), (6,5)}

This is again a function. Because the domain is mapped to unique elements. So, this is a function.

4 0

3 years ago

What is 25 divided by 9

Airida [17]

Answer:

25/9=2.77777777778

Step-by-step explanation:

8 0

2 years ago

help me thank you whoever is right gets brainliest A carpenter attaches a piece of plywood with a width of 4 feet and a length o

levacccp [35]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The table shows the time a patient spends at the dentist and the amount of the bill.

erica [24]

<u>Answer-</u>

Correlation coefficient for the data in the table was found to be 0.93.

<u>Solution-</u>

Taking the independent variable or input variable as, the time a patient spends at the dentist and the dependent variable or output variable as the amount of the bill.

We know that,

$r=\frac{n(\sum xy)-\sum x \sum y}{\sqrt{[n\sum x^{2} -({\sum x})^{2}]\times [n\sum y^{2} -({\sum y})^{2}]}}$

Calculating the values from the table, then putting it in the formula

$r=\frac{4 \times 3130.9 \ - \ 6.45 \times 1473}{\sqrt{[4\times 12.3725 \ - \ 6.45^{2}][4 \times 877475 \ - \ 1473^2]}}$

$\Rightarrow r=0.929720561 \approx 0.93$

∴ Correlation coefficient for the data is 0.93.

3 0

3 years ago

Read 2 more answers

for points A, B, and C, AB = 2, BC = 3, and AC = 4. Select one: a. A, B, and C are noncollinear. b. A, B, and C form a right tri

victus00 [196]

Short Answer: A
Remark
C
Let's start with the false choices.
If they were colinear, then if AB + BC would = 5 or 1 depending on the location of C. Answer C is not correct.

B
a b and c do not form a right triangle. a^2 + b^2 ≠ c^2
2^2 + 3^2 = 13 not 16 (which is what c^2 or 4^2 = )

D
D is false. Equilateral triangles have 3 equal sides.

A is true. Since A and C are opposites and you have eliminated C by arguing A. Then A must be the answer.

3 0

3 years ago