Evaluate the function below for x=2. F(x)=2x^3-x^2-5x+6

Answers

Answer 1

Answer:

Answer:

A Function states an equation that has only one answer for y for every x. Also, a function assigns exactly one output to each input of a specified type.

i,e y= f(x) where x represents the input variable and y represents the output value.

Given the function: $F(x) = 2x^3-x^2-5x+6$

Substitute the given input value of x =2 , we get;

$F(2) = 2(2)^3-(2)^2-5(2)+6$

$F(2) = 2(8)-4-10+6$

$F(2) = 16-4-10+6$

Simplify:

$F(2) = 8$

Therefore, the function $F(x)=2x^3-x^2-5x+6$ for x=2, we have F(2) =8.

Answer 2

Answer: $f(x)=2x^3-x^2-5x+6 \ \ \ \boxed{x=2}\n \n f(2)=2*2^3-2^2-5*2+6\n \n f(2)=16-4-10+6\n \n f(2)=8$

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How is statement B related to statement A? Statement A: If two angles are not vertical, then the angles are not congruent.
Statement B: If two angles are vertical, then the angles are congruent.
A) Inverse
B) Converse
C) Conditional
D) Contrapositive

Answers

This is an Inverse.
Final Answer : A

This is because each part (the hypothesis and conditional) were reversed.

Numbers like 7.478478... and 2.3565656... are rational or irrational. Give reason .

Answers

These numbers are irrational because they cannot be written in the form: $(x)/(y)$ .

Only rational numbers can be written in the ratio form.

Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What multiplicative rate of change should Hal use in his function?

Answers

Answer
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98
=9.8×10⁻¹

Explanation
The investment of $10,000 decreases by 2% every year. So the following year is usually (100 - 2)=98% of the previous year. This is a geometric progression.
In this case the first term = 10000
The second term = 98% × 10000 = 9800.
The common ratio = 9800/10000=49/50
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98.
The equation of the exponential rate would be;
10,000ₓ0.98ⁿ.
where n is the number years.

Answer: B

Step-by-step explanation:

0.98

E2020

Help please! I have to do this math test and I dont understand

Answers

Answer:

y=1x+1

Step-by-step explanation:

y=1x+1 gradient= 1 and y-intersept = 1

Carson has $450 in his bank account and deposits $70 per month out of his babysitting money. Construct a linear function that models Carson’s bank balance for any given month.

Answers

450 + 70x, where x is the number of months that carson works and 450 is the initial amount of money in his bank account

The sum of two numbers is 95, and their difference is 61. What are the two numbers?

Answers

Let's call:

$first\#=x$

$second\#=y$

then

when we have a SUM, we have PLUS and when we have a DIFFERENCE, we have MINUS... Let's go then...

$\begin{Bmatrix}x+y&=&95\nx-y&=&61\end{matrix}$

now we can sum all the rows then we got it... (This is the other way to solved this question)

$x+y+(x-y)=95+61$

$x+y+x-y=156$

$2x=156$

$\boxed{x=78}$

now we can replace this value at first or at second row, you just need to pick up one...

I'll choose the second one

$x-y=61$

$78-y=61$

$y=78-61$

$\boxed{y=17}$

$\boxed{\boxed{\begin{Bmatrix}x&=&78\ny&=&17\end{matrix}}}$

$\left \{ {x+y=95} \atop {x-y=61}} \right. \n \n2x=156\nx= (156)/(2) \n \nx=78\n \ny=95-y\ny=95-78\ny=17$

First number 78, and the second is 17 .

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