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mart [117]
3 years ago
7

What is the rate of change for the equation f(x)=-4x+3?

Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0
-4 is the rate of change otherwise known as the slope
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1 1/10 divided by 1 1/5
Black_prince [1.1K]

Answer:

  11/12

Step-by-step explanation:

(1 1/10)/(1 1/5) = 1.1/1.2 = 11/12

__

You can also work this using improper fractions:

(1 1/10)/(1 1/5) = (11/10)/(6/5) = 11/10×5/6 = (11×5)/(6×10)

  = (11×5)/(6×2×5) = 11/(6×2) = 11/12

6 0
3 years ago
Read 2 more answers
If y=1/2 when x=2, find y when x=3, given that y varies directly with x
Lelu [443]
\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=\frac{1}{2}\\
x=2
\end{cases}\implies \cfrac{1}{2}=k2\implies \cfrac{1}{4}=k
\\\\\\
\boxed{y=\cfrac{1}{4}x}
\\\\\\
\textit{when x=3, what is \underline{y}?}\qquad y=\cfrac{1}{4}\cdot 3
4 0
3 years ago
Please show me how you find x and determine what x is <br> Thank you I appreciate it :)
AfilCa [17]

well, let's notice something, we have two 45° angles, now each of those will give use an equal opposite side, namely if that one side is "x", the other is her twin, "x" as well.

is a right-triangle, so we can use the pythagorean theorem, and we know the sides are x,x,6.


\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies 6^2=x^2+x^2 \qquad \begin{cases} c=\stackrel{hypotenuse}{6}\\ a=\stackrel{adjacent}{x}\\ b=\stackrel{opposite}{x}\\ \end{cases} \\\\\\ 36=2x^2\implies \cfrac{36}{2}=x^2\implies 18=x^2\implies \sqrt{18}=x\implies \sqrt{9\cdot 2}=x \\\\\\ \sqrt{3^2\cdot 2}=x\implies \boxed{3\sqrt{2}=x}

7 0
3 years ago
Which of the following refers to the principle that if A exceeds B in some property and B exceeds C, then A must also exceed C?
Mazyrski [523]

Answer:

Option c) Transitivity

Step-by-step explanation:

We are given the following information in the question:

If A exceeds B in some property and B exceeds C, then A must also exceed C.

We have to define the property shown by A,B and C.

Transitivity:

  • It is a mathematical property which states that between three numbers if first and second share the property, second and third share the property, then according to transitive property, the property holds between first and third as well.

Thus, A, B and C here shows the transitive property.

The correct answer is

Option c) Transitivity

7 0
3 years ago
X/7=3/5 so x=??????????????????
frosja888 [35]
By using cross multiplication x= 3×7÷5=4.2
the answer is 4.2
5 0
3 years ago
Read 2 more answers
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