3 years ago

Precalculus class questions

Mathematics

1 answer:

Delicious77 [7]3 years ago

7 0

This is an exponential function that moved 4 units down.

$y= 3^{x} - 4$

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Find lim h→0 f(2+h)-f(2)/h if f(x)=x^2+x+1

bekas [8.4K]

Answer:

Step-by-step explanation:

$\displaystyle \lim_{h \to 0} \frac{f(2+h)-f(2)}{h}$

$\displaystyle\lim_{h \to 0} \frac{(2+h)^2 + 2 + h + 1 - 2^2 - 2 - 1}{h}$

$\displaystyle\lim_{h \to 0} \frac{4 + 4h + h^2 + h - 4}{h}$

$\displaystyle\lim_{h \to 0} \frac{h^2 + 5h}{h}$

$\displaystyle\lim_{h \to 0} h + 5$

= 5

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2 years ago

A new car is sold with or without antilock brakes, with or without a CD player, with or without electric seats, and with or with

True [87]

Answer:

8 different choices

Step-by-step explanation:

With or without antibrake=2 ways

With or without player=2ways

With or without sunroof=2 ways

Total number of ways=2×2×2=8 ways

3 0

3 years ago

Classify this expression

lyudmila [28]

Answer:

$8. - 1. - 44$

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2 years ago

Fine Floors can install 15 square yards of carpeting in 4 hours and 30 minutes. At this rate, how long would it take to install

AnnZ [28]

D is your awnser here

3 0

3 years ago

Read 2 more answers

How to solve 2(x+y)^2-9(x+y)-5

Aliun [14]

Answer:

2(x + y)² - 9( x + y ) -5 = 0

⇒2(x + y)² - 10 (x+y) +1(x+y) -5 = 0

⇒2(x+y)(x + y - 5 ) + 1(x + y -5 ) = 0

taking (x + y -5 ) common ,

⇒(x + y -5 )[2(x + y) + 1] =0

⇒(x + y -5)(2x + 2y +1) =0

hope , you got this

6 0

3 years ago