3 years ago

If f (x)= x2- 2x : which of the following is the value of f (4)

Mathematics

1 answer:

suter [353]3 years ago

3 0

62031549163916391638173163

You might be interested in

Solve by factoring and i need the steps too !!

IrinaVladis [17]

Answer:

$x_1 = -8\\\\x_2 = 8$

Step-by-step explanation:

To solve this problem use the formula "Difference of squares":

$(a + b) (a-b) = a ^2 -b ^ 2$

In this problem we have the following equation

$x ^ 2 -64 = 0$

This we can write it in the following way

$x ^ 2 - 8 ^ 2 = 0$

Then if a = x and b = 8 then:

$x ^ 2 - 8 ^ 2 = (x+8)(x-8) = 0$

Then the product of both factors is equal to zero when:

$x+8 = 0\\\\x =-8$

$x -8 = 0\\\\x =8$

8 0

4 years ago

Eduardo has purchased a home with an assessed value of $179,000. The property tax rate in his area is 2.3%. What is his monthly

ad-work [718]

Answer:

C. 343.08

Step-by-step explanation:

Convert the tax rate into a decimal and multiply by the house price:

.023(179,000) = 4,117

Divide by 12 (to get monthly rate):

4,117/12 ≈ 343.08

Option C should be the correct answer.

7 0

3 years ago

suppose the income tax rate is 4% determine the amount of money remaining after paying income tax on an income of $20,000

Romashka [77]

Answer:

$19200

Step-by-step explanation:

20,000*0.96=19200

4 0

3 years ago

Ella has ½ gallon of orange juice left that must last 4 days. How much can she drink each day?

Masja [62]

She can drink 1/8 each day.

This is because we do 1/2 divided by 4 which would equally distribute the amount she can drink each day.

4 0

3 years ago

Find the midpoint of the segment with the endpoints: (-7, -13) and (-11, -5)

vichka [17]

Answer:

(-9, -9)

Step-by-step explanation:

Midpoint Formula :-

(x, y) = (x₁ + x₂ / 2, y₁ + y₂ / 2)

= (-7 + -11 / 2, -13 + -5 / 2)

= (-9, -9)

6 0

3 years ago