Solve the system -0.18x + y = -6.54 -2.8x - y = -2.4

1 answer:

5 0

ADDING THE 2 EQUATIONS TO ELIMINATE Y WE HAVE

-2.98x = -8.94
x = 3

Plug x=3 into first equation:-
-0.18(3) + y = -6.54
y = -6.54 +0.54 = -6

answer x= 3 and y= -6.

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given the arithemtic or geometric sequence, identify f(0) and the common difference ratio f(x) = 4-2/3x

ankoles [38]

Answer:

Required value of f(0) = 4 and common difference of given sequence is $\frac{-2}{3}$

Solution:

Given sequence rule for arithmetic sequence is $\mathrm{f}(\mathrm{x})=4-\left(\frac{2}{3}\right) x$

We need to determine f(0) and common difference

Calculating f(0).

Substituting x = 0 in given sequence rule we get

$\begin{array}{l}{f(0)=4-\left(\frac{2}{3}\right) 0} \\ {=4-0=4}\end{array}$

Calculating common difference

Let’s first calculate f(1) and f(2).

Substituting x = 1 in given sequence rule

$\begin{array}{l}{\mathrm{f}(1)=4-\left(\frac{2}{3}\right) 1} \\ {=4-\left(\frac{2}{3}\right)=\frac{10}{3}}\end{array}$

$\mathrm{f}(2)=4-\left(\frac{2}{3}\right) 2=4-\left(\frac{4}{3}\right)=\frac{8}{3}$

Common Difference can be found by subtracting f(1) from f(2)

$\text { Common difference }=\mathrm{f}(2)-\mathrm{f}(1)=\left(\frac{8}{3}\right)-\left(\frac{10}{3}\right)=\frac{-2}{3}$

Hence required value of f(0) = 4 and common difference of given sequence is $\frac{-2}{3}$

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3 years ago

12/7=k/8 slove for k

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Answer:

k = 96/7

Step-by-step explanation:

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3 years ago

Read 2 more answers

Which equation has solution x = -3?

Lubov Fominskaja [6]

Your question: Which equation has solution x = -3?

I'd like you to know: I couldn't find any answer that exactly answered X=-3, although there is an answer similar to. But if it was accidental, this would be the most correct answer.

Answer: A) 2x - 7 = -1

|Step-by-step explanation|