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3 years ago

14

NEED HELP!!!!!!!!!!

1 answer:

kvasek [131]3 years ago

7 0

Number one is (saturated) number two is (solvent) number three is (b and c) number four is (element) number five is ( no more solvent can be dissolved)

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If f(x)=x^2+3x+4 which of the number choices represents (f(x+h)-f(x))/h?

Helen [10]

In case you're not already aware, the expression $\frac{f(x+h)-f(x)}h$ is called the "difference quotient" and represents the average rate of change of a function $f$ over an interval $[x,x+h]$ .

For the function $f(x)=x^2+3x+4$ , by substituting $x+h$ we get

$f(x+h)=(x+h)^2+3(x+h)+4=(x^2+2xh+h^2)+(3x+3h)+4=x^2+3x+4+(2x+3)h+h^2$

Then the difference quotient is

$\dfrac{f(x+h)-f(x)}h=\dfrac{(x^2+3x+4+(2x+3)h+h^2)-(x^2+3x+4)}h$

$=\dfrac{(2x+3)h+h^2}h=2x+3+h$

where the last equality holds as long as $h\neq0$ .

5 0

3 years ago

Tim’s height is 1m 20cm and Erica’s height is 1m. What is the simplified ratio of Tim’s height to Erica’s height?

Sholpan [36]

Tim is 20 cm higher on height

5 0

3 years ago

PLEASE HELP WILL MARK BRAINLIEST

LuckyWell [14K]

Answer:

a) $0.500 ; (b) $5

Step-by-step explanation:

(a) 11 pound of flour =$5

1 pound of flour = $5/11

1 pound of flour = $0.500

(b) 8hours =$40

1 hour =$40/8

1 hour = $5

8 0

3 years ago

Need help i don't understand

BabaBlast [244]

Answer:

Commutative property of multiplication

Step-by-step explanation:

This property states that numbers can be switched around when multiplying and the answer still remains the same

3 0

3 years ago

Read 2 more answers

How do you write 12,800 in scientific notation?

evablogger [386]

Answer:

Step-by-step explanation:

12,800 written as 1.28 x 104 in scientific notation

7 0

3 years ago