Answer:
136/21 as an improper fraction.
Step-by-step explanation:
multiply 6 x 21
6 x 21 = 126
And then add 10.
126 + 10 = 136
Finally, you just keep the denominator. Your final answer is 136/21.
It is Given that f(x) = log₂ (x + 4), so the value of f(3) is log₂ (7) or 2.807.
<h3>What is a logarithm?</h3>
When you raise a number with an exponent, there comes a result.
Let's say you get
a^b = c
Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows
'a' is called base of this log function. We say that 'b' is the logarithm of 'c' to base 'a'
Given ;
f(x) = log₂ (x + 4)
we need to find f(3)
substitute x = 3 in f(x)
f(x) = log₂ (x + 4)
f(3) = log₂ (3 + 4)
f(3) = log₂ (7)
Hence, f(3) = 2.807
Learn more about logarithm here:
brainly.com/question/20835449
#SPJ1
Answer:
Step-by-step explanation:
hello :
x²+6x+9 = 20
(x+3)²-20 = 0
(x+3)²-√20 = 0
(x+3-√20)(x+3+√20)=0
x+3-√20=0 or x+3+√20=0
x = -3+√20 or x = -3-√20 answer B
Vamos lá.....
Duas maneiras praticas:
1 - Multiplicar a fraçao pelo total, vai informar quanto a fracao representa (o que é questionado na questao)
2 - Regra de 3.
1:
72 × (3/8)
216/8
27
Ele acertou 27 questoes
<em>(pergunta mais que interessante: qntas questoes havia na prova??? 72)</em>