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2 years ago

What is the number of solutions of 4x^2+12x+9=0?

Mathematics

1 answer:

Gwar [14]2 years ago

7 0

Answer:

One Real number solution

Step-by-step explanation:

check the discriminant

12^2 - 4*4*9

b^2 - 4ac

...

144 - 16*9 = 0

one double root

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Answer:

c.) 70

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2 years ago

What is |-8| ? -16

olga nikolaevna [1]

Answer:

Those little "sticks" are called absolute value.

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I hope it helps.

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1 year ago

Read 2 more answers

Exact solutions. X^2-5x-1=0

Romashka [77]

Answer:

x= (5±√29)÷2

Step-by-step explanation:

Quadratic formula:

x= (-b±√b²-4ac)÷2a

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2 years ago

What is function and how is it related to domain and range?

const2013 [10]

Answer:

Function- a relationship or expression involving one or more variables.

A domain refers to the set of possible input values.

The range is the set of possible output values.

Step-by-step explanation:

4 0

3 years ago

Find the difference quotient of f(x)=5x+4

Aleonysh [2.5K]

The differnce quotient is basically taking the derivitive (result will be f'(x)=5, but anyway)

here is the disffernce quotient
$lim_{h\rightarrow0}\frac{f(x+h)-f(x)}{h}$

so
for your equation
$lim_{h\rightarrow0}\frac{(5(x+h)+4)-(5x+4)}{h}$
$lim_{h\rightarrow0}\frac{5x+5h+4-5x-4}{h}$
$lim_{h\rightarrow0}\frac{5h}{h}$
h's cancel and you are left with 5
the differnce quotient is 5

6 0

2 years ago