3 years ago

For which values of x is the function f(x)= 4/x not defined?

1 answer:

7 0

$f(x)=\dfrac{4}{x}$

Answer: The function f(x) is not defined for x = 0 because the denominator cannot be equal 0.

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Solve the following system of equations using the substitution method.

Novay_Z [31]

X=2y
2x+5y=9

substitute the x=2y into the second equation
2(2y)+5y=9
multiple the 2y by 2. 4y+5y=9
combine like terms. 9y=9
divide the 9 out from both sides. y=1
plug the y back into the first equation
x=2(1)
multiply. x=2

your answer is: x=2
y=1

7 0

3 years ago

A 2-column table with 5 rows. The first column is labeled time (weeks) with entries 1, 2, 3, 4, 5. The second column is labeled

Goshia [24]

Answer:

exponential

constant multiplicative rate of change

Step-by-step explanation:

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2 years ago

I can't quite remember how to approach this one, I have three others, but I think I could solve them if someone helped walked me

Nimfa-mama [501]

Https://us-static.z-dn.net/files/d8d/e008ced388704d59896d3bf37158f465.jpeg

3 0

2 years ago

9. A cup of tea costs x pence. Coffee costs 20 pence more. Hermes buys 2 cups of tea and one cup of coffee. In total Hermes pays

qaws [65]

Answer:

£1.20

Step-by-step explanation:

Given:

Tea = x
Coffee = x + 0.2

Comparing the total cost, work out the value of x:

2x + x + 0.2 = 3.80
3x = 3.60
x = 1.20

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2 years ago

5. The point (-7, 4) is reflected over the line x = -3. Then,

Genrish500 [490]

Answer:

(4,1)

Step-by-step explanation:

Reflected over x = -3, new point : (1,4)

Reflected over y=x, new point = (4,1)

6 0

2 years ago