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2 years ago

I really need help on this question

Mathematics

1 answer:

saul85 [17]2 years ago

7 0

Answer:

Step-by-step explanation:

y = $\frac{1}{4}$ is the equation of a horizontal line, parallel to the x- axis.

A line perpendicular to it will be a vertical line parallel to the y- axis with equation

x = c

where c is the value of the x- coordinates the line passes through.

The line passes through (- 6, - 9) with x- coordinate - 6, thus

x = - 6 ← is the equation of the perpendicular line

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I need help with this if anyone can help

Fiesta28 [93]

Answer: $\Large\boxed{Fourth~Choice.~f(x)=2-i}$

Concept:

Here, we need to know the power of imaginary numbers

i = √(-1)

i² = -1

i³ = -i

i⁴ = 1

Solve:

Given function expression

$f(x)=x^3-2x^2$

Given the requirement of the question

To find the expression for f(i)

Substitute values into the expression

$f(x)=(i)^3-2(i)^2$

Simplify the exponents

$f(x)=(-i)-2(-1)$

Expand the parenthesis

$f(x)=-i-(-2)$

$\Large\boxed{f(x)=2-i}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

1 year ago

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You need at least $535 to go on a trip to California. You have already save $200. You decide to save an additional $25 per week.

FrozenT [24]

Answer:

200+25w

Step-by-step explanation:

200=starting amount

25=every week gaining

w=weeks

Answer= 14.5 weeks

Hope it helps!

4 0

3 years ago

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What is the simplified value of expression below 1/3 2/3

Dmitriy789 [7]

Answer:

C.1/2

Step-by-step explanation:

6 0

2 years ago

All the 5th graders at Lincoln Elementary School will go on a field trip to the science museum. Counting all the children, teach

user100 [1]

The answer must be a whole number because for example how are you suppose to fit half a child on a bus that can hold 44 people when it already holds that amount.

It will always be a whole number because if there are several left over students they will be put in another bus with more empty seats.

3 0

2 years ago

Is 3b-9 a algebraic expression

Slav-nsk [51]

Answer:

yes

Step-by-step explanation:

8 0

3 years ago

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