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3 years ago

What is the square root of -1?

Mathematics

2 answers:

pickupchik [31]3 years ago

6 0

Answer:

Unit Imaginary Number or i

mojhsa [17]3 years ago

4 0

Answer:

Step-by-step explanatidk

ion:

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A large bag or sugar weighs 7 1/2 lb. Gow Much does 1 1/4 bags of sugar weighs

arsen [322]

Answer:

The correct option is 4.

Step-by-step explanation:

It is given that the weight of a large bag of sugar is $7\frac{1}{2}$ . This complex fraction can be written as

$7\frac{1}{2}=\frac{14+1}{2}=\frac{15}{2}$

So, the weight of a large bag of sugar is $\frac{15}{2}$ .

The number of bags is $1\frac{1}{4}$ . It means the number of bags is number of bags is $\frac{5}{4}$ .

$1\text{ Bag}=\frac{15}{2}\text{ lb}$

Multiply both side by $\frac{5}{4}$ .

$1\times \frac{5}{4}\text{ Bag}=\frac{15}{2}\times \frac{5}{4}\text{ lb}$

$\frac{5}{4}\text{ Bag}=\frac{75}{8}\text{ lb}$

$\frac{5}{4}\text{ Bag}=9\frac{3}{8}\text{ lb}$

Therefore correct option is 4.

5 0

3 years ago

Read 2 more answers

Use the properties of logarithms to expand the expression as a sum or difference, and/or constant multiple of logarithms. (Assum

Alecsey [184]

Answer:

$\log_5(9)+\frac{1}{2}\log_5(x)-3\log_5(y)$

Step-by-step explanation:

$\log_5(\frac{9\sqrt{x}}{y^3})$

First rule I'm going to use is the quotient rule:

$\log_b(\frac{m}{n})=\log_b(m)-\log_b(n)$

$\log_5(9\sqrt{x})-\log_5(y^3)$

Secondly, I'm going to rewrite the radical.

$\sqrt{x}=x^\frac{1}{2}$

$\log_5(9x^\frac{1}{2})-\log_5(y^3)$

Third, I'm going to use the product rule on the first term:

$\log_b(mn)=\log_b(m)+\log_b(n)$

$\log_5(9)+\log_5(x^\frac{1}{2})-\log_5(y^3)$

Fourth, I'm going to use power rule for both of the last two terms:

$\log_b(m^r)=r\log_b(m)$

$\log_5(9)+\frac{1}{2}\log_5(x)-3\log_5(y)$

6 0

2 years ago

There are 5 times as many males as females on the maths course at university. What fraction of the course are female? Give your

koban [17]

Answer: 1/6

Step-by-step explanation: Let the no of females be x

The no of males be 5x

The total no of males and females in the math course be 5x+x= 6x

The fraction of females is x/6x = 1/6

4 0

3 years ago

If pqr= 1 show that 1/(1+p+q^-1)+1/(1+q+r^-1)+1/(1+r+p^-1) = 1.<br>

mariarad [96]

Answer:

Step-by-step explanation:

1/(1+p+q^-1)+1/(1+q+r^-1)+1/(1+r+p^-1) = 1.

7 0

2 years ago

Read 2 more answers

Cuál enunciado No es verdadero con respecto al valor de la varieble n en la siguiente ecuación?

aliina [53]

Answer:

es la c

Step-by-step explanation:

Explicación paso a paso:ya que para que de 0 tiene que ser un número negativo, tiene que ser el número inverso a 2/3, entonces n= -2/3 que tiene el mismo valor absoluto que 2/3

3 0

3 years ago