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3 years ago

How do you solve this using substitution -8x-y=-30 Y=12x-50

Mathematics

1 answer:

never [62]3 years ago

7 0

Step-by-step explanation:

substitude the y value into y in the first equation

-8-(12x-50)=30

-8-12x+50=30

you see it?

then solve

-8+50-30=12x

you got the value = 12x

then you divide with 12

finally you get x

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Describe and correct the error a student made in writing the exponential function

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The student steps' are given as:

Starting value: a = 6
Constant ratio: r = 1/3
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<h3>What is an exponential function?</h3>

An exponential function is a function that is represented as:

$f(x) = a(b)^x$

Where:

a represents the initial value
b represents the rate

From the student steps, we have:

$f(x) = 6(\frac13)^x$

The above means that:

The student did not make any error in substituting the values

However, the student made a mistake in multiplying 6 and (1/3)^x

So, the correct function that represents the given parameters is $f(x) = 6(\frac13)^x$

Read more about exponential functions at:

brainly.com/question/11464095

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3 years ago

A rectangular prism with a height of 6 m, a length of 5 m, and a width of 4 m will have a different surface area than a rectangu

lorasvet [3.4K]

False they have the same surface area: 148

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4 years ago

While visiting Haifa, Sid Resnick discovered that people who wish to travel from the port area up the mountain frequently take a

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Step-by-step explanation:

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3 years ago

Four circles of unit radius are drawn with centers $(1,0)$, $(-1,0)$, $(0,1)$, and $(0,-1)$. a circle with radius 2 is drawn wit

Reika [66]

Check the picture 1.

The regions contained in an odd number of these 5 circles are

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Consider the second picture.

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Thus, the overall yellow region is $8A1=8(\frac{1}{4}\pi- \frac{1}{2})=2\pi-4$

The purple area is:

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4 years ago

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