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3 years ago

The equation 0.5x - y = 2 is expressed in the standard form for a linear equation.

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

7 0

I went over this question. And the answer is True :)

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Pls answer asap i’m taking a test ahhh

goldenfox [79]

First, It's a function.

Second, domain is {a,b,c,d}

Third, range is {x,y,z}

Reason why it's function because

1. A single value in Input doesn't have 2 lines connected (domain must not be repetitive.)

2. All Inputs have lines connected to Output (if not then not a function.)

8 0

3 years ago

Is it possible to prove the triangles congruent? if so, what postulate would you use?

amid [387]

Answer:

Is in the attached image.

Hope this helped

-Adan

8 0

3 years ago

Which logarithmic graph can be used to approximate the value of y in the equation 4^y=8

WINSTONCH [101]

$\bf \textit{exponential form of a logarithm}\\\\
log_{{ a}}{{ b}}=y \implies {{ a}}^y={{ b}}\qquad\qquad 
% exponential notation 2nd form
{{ a}}^y={{ b}}\implies log_{{ a}}{{ b}}=y 
\\\\
-------------------------------\\\\$

$\bf 4^y=8\implies log_4(8)=y\qquad 
\begin{cases}
4=2^2\\
8=2^3
\end{cases}\implies (2^2)^y=2^3
\\\\\\
2^{2y}=2^3\impliedby \textit{since the bases are the same, so are the exponents}
\\\\\\
2y=3\implies y=\cfrac{3}{2}\implies y=1\frac{1}{2}\quad thus\quad 
\begin{cases}
x=8\\
y=\frac{3}{2}
\end{cases}$

so.. check your graphs

7 0

4 years ago

Which set of coordinates is a solution of the equation 2x - y =11

mina [271]

Just substitute any number for one variable to find the value of the other.
Eg:
2x-y=11
2(1)-y=11
2-y=11
-2 -2
-y=9
-y/-1=9/-1
y=-9
So (1,-9) is a solution to the equation.
Follow the steps and find many more solutions.
Hope I help you.

5 0

4 years ago

Read 2 more answers

A company knows that unit cost C and unit revenue R from the production and sale of x units are related by Upper C equals StartF

levacccp [35]

Answer:

$990 per unit.

Step-by-step explanation:

The Unit Cost (C) and Unit Revenue R from the production and sale of x units are related by the function:

$C=\dfrac{R^2}{220000} +3221$

We are required to find the rate of change of revenue per unit when the cost per unit is changing by $9 and the revenue is $1,000.

Rate of Change of C,

$\dfrac{dC}{dt}=\dfrac{R}{110000} \dfrac{dR}{dt} \\\dfrac{dC}{dt}=\$9, R=\$1000\\9=\dfrac{1000}{110000} \dfrac{dR}{dt}\\\dfrac{dR}{dt}=9 \div \dfrac{1000}{110000}\\=9 X \dfrac{110000}{1000}\\\dfrac{dR}{dt}=\$990 $ per unit$$

The Revenue is changing at a rate of $990 per unit.

6 0

3 years ago