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3 years ago

G = {(5, 3), (2, 3), (6, 4)} Is G-1 a function and why?

Mathematics

1 answer:

mars1129 [50]3 years ago

5 0

Becasue there are no repeating numbers in the x coordinate

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Determine if the following relations are functions. if they are functions, also state the domain and range.

Feliz [49]

Answer:

no, they are not functions

Step-by-step explanation:

this is because a single domain has multiple range.

i.e. domain 2 has ranges 2 and 4

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3 years ago

In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=29°, and SQ = 5 feet. Find the length of QR to the nearest tenth of a foot.

goldfiish [28.3K]

Answer:

2.8 feet

Step-by-step explanation:

tan(29)=x/5

5tan(29)=x

2.8=x

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2 years ago

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Directions- Solve the following problem and write your answer in scientific notation. The mass of the moon is about 7.3X10^22 kg

Masteriza [31]

Answer:

Step-by-step explanation:

7.3×10^22 = 73,000,000,000,000,000,000,000

73,000,000,000,000,000,000,000 × 26,000,000 = 1,898,000,000,000,000,000,000,000,000,000 or 1.898 × 10^30

3 0

3 years ago

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bought a new car in 2011 for 25000. in 2015, joe was offered a fair price of 12000 for his car but he turned it down. build a li

Mrrafil [7]

Answer:

$y=-3,250t+25,000$

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope of unit rate of the linear equation

b is the y-intercept or initial value of the linear equation

Let

t ----> the number of years since 2011

y --->the car's value

In this problem the year 2011 represent t=0

the year 2015, represent t=4 years (2015-2011)

we have the ordered pairs

(0,25,000) ----> represent the y-intercept

(4,12,000)

<em>Find the slope m</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{t2-t1}$

substitute the values

$m=\frac{12,000-25,000}{4-0}$

$m=\frac{-13,000}{4}$

$m=-\$3,250\ per\ year$ ---> is negative because is a decreasing function

we have

$b=\$25,000$ ----> value of y when the value of x is equal to zero (initial value)

substitute the given values

$y=-3,250t+25,000$

3 0

3 years ago

Read 2 more answers

Hi ..<br>I really need help on this one <br>

IgorLugansk [536]

Answer:

LCM of 3 and 2 is 6

so, firstly we had to make the denominator same:-

$\frac{2(2a + 1) + 3(3a - 1)} {6}$

$\frac{4a + 2 + 9a - 3}{6}$

$\frac{13a - 1}{6}$

Step-by-step explanation:

hope this helps you!!!

XxITSCHOCOLOVERxX

5 0

2 years ago