2 years ago

Is 2x+4-x linear or non linear?

1 answer:

6 0

Answer:

To determine if an equation is a linear function, it must have the form y = mx + b (in which m is the slope and b is the y-intercept). A nonlinear function will not match this form.

So it is linear.

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How do you like math plz explain

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I like math because it gets me thinking a lot. math helps me in the world because we need to know how to do math in order to go shopping or we will not give the cashier the correct amount or maybe you will give them an extra amount of money because you can't do math.

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2 years ago

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What is the sum of the first 6 terms of this geometric sequence? –4, –16, –64, –256, …

MatroZZZ [7]

$a_1=-4;\ a_2=-16;\ a_3=-64;\ a_4=-256;\ ...\\\\r=\dfrac{a_{n+1}}{a_n}\to r=\dfrac{a_2}{a_1}\to r=\dfrac{-16}{-4}=4$

The formula of the sum of a geometric sequence:

$S_n=a_1\cdot\dfrac{1-r^n}{1-r}$

We have:

$a_1=-4;\ n=6;\ r=4$

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2 years ago

Mrs. Figueroa made a spaghetti dinner for the cheerleaders after practice. She purchased 42 pounds of beef for $3.99 per pound.

Zigmanuir [339]

The answer is $167.58 you check it be multiplying 3.99x42

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1 year ago

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Help me , I need i whole number

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Answer:

Step-by-step explanation:

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2 years ago

Find the intervals on which f(x)=2xx2+64 increases.

Shtirlitz [24]

f(0)=64, f(1)=66, f(2)=72, f(3)=82, f(4)=96,...=2,6,10,14,...=2{1,3,5,7,...}
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2 years ago