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3 years ago

Determine which relation is a function.

Mathematics

2 answers:

GrogVix [38]3 years ago

8 0

Letter A is the function because the input has exactly 1 output

anyanavicka [17]3 years ago

7 0

Answer choice a is a function because none of its x values repeat at all. There is only one -4 in the function. and same with all the x values

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Pls help

astra-53 [7]

Answer:

2+i times the square root of 7

4 0

3 years ago

Read 2 more answers

I will give brainiest

Tju [1.3M]

Answer:

(7,-2)

Step-by-step explanation:

G is currently at (2, 0)

(2+5, 0-2) becomes (7, -2)

6 0

3 years ago

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A cyclist travels at distance of 400 meters in 120 seconds towards school, calculate his speed. (Show your work)

DochEvi [55]

we know that

The scalar magnitude of the velocity vector is the speed. The speed is equal to

$Speed=\frac{distance}{time}$

in this problem we have

$distance=400\ m \\time=120\ sec$

substitute in the formula

$Speed=\frac{400}{120}$

$Speed=3.5\frac{m}{sec}$

therefore

the answer Part a) is

the speed is equal to $3.5\frac{m}{sec}$

Part b) Find the velocity

we know that

Velocity is a vector quantity; both magnitude and direction are needed to define it

in this problem we have

the magnitude is equal to the speed

$magnitude=3.5\frac{m}{sec}$

$direction=North\ East\ (NE)$

therefore

the answer Part b) is

the velocity is $3.5\frac{m}{sec}\ North\ East\ (NE)$

Part c)

we know that

the acceleration is equal to the formula

$a=\frac{V2-V1}{t2-t1}$

in this problem we have

$V2=0 \\V1=3.5\frac{m}{sec}$

$t2=15\ sec\\t1=0$

substitute in the formula

$a=\frac{0-3.5}{15-0}$

$a=-\frac{3.5}{15}\frac{m}{sec^{2}}$

$a=-\frac{7}{30}\frac{m}{sec^{2}}$

therefore

the answer Part c) is

the acceleration is $-\frac{7}{30}\frac{m}{sec^{2}}$

This is an example of negative acceleration

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3 years ago

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What percent of 75 is 25

nikdorinn [45]

P / 100 = 25 / 75;

p = 2500 / 75 ;

p = 33.33;

p% = 33.33%

4 0

3 years ago

What is the molarity of a solution

Vika [28.1K]

Answer:

0.670. M

Step-by-step explanation:

Molarity can be expressed like this:

molarity = number of moles /volume (L)

We know the volume, which is 2.37 L , but we need to find the number of moles. We can do this by dividing 67.3 g by the molar mass of L i C l :

number of moles = mass of sample /molar mass

number of moles = 67.3 g /(6.94 + 35.45) g/mol = 67.3 g /42.39 g/mol

number of moles = 1.59 mol

molarity = 1.59 mol /2.37 L = 0.670. M

7 0

2 years ago