All categories

2 years ago

Simplify the expression A(A^-1 + B^-1)B(A + B)^-1.

Mathematics

1 answer:

Elis [28]2 years ago

4 0

Answer:

i think it would just be B+A

Step-by-step explanation:

You might be interested in

Im to lazy for math can u help me please?

riadik2000 [5.3K]

Answer:

he spent $68 without the fees and $32 on fees

Step-by-step explanation:

8 0

2 years ago

Please help, i need to raise my grade

Dmitrij [34]

Answer:

$r=\dfrac{v^2}{a}$

Step-by-step explanation:

To isolate r, we're going to need to do some algebraic manipulation.

$a=\dfrac{v^2}{r}$

Multiply both sides by r:

$a\cdot r=v^2$

Divide both sides by a:

$r=\dfrac{v^2}{a}$

Hope this helps!

5 0

3 years ago

Renee tossed 12 heads when tossing a coin 18 times.

Nadya [2.5K]

So,

Simply divide 12 by 18.
$\frac{12}{18} --\ \textgreater \ \frac{2}{3}$

The experimental probability of tossing heads was 2 out of 3.

5 0

2 years ago

Convert the fraction 7 24 into a repeating decimal.

goldenfox [79]

$\dfrac7{24}=\dfrac6{24}+\dfrac1{24}=\dfrac14+\dfrac1{24}$

$\dfrac1{24}=\dfrac1{8\time3}=\dfrac a8+\dfrac b3=\dfrac{3a+8b}{24}$
$\implies3a+8b=1$

We can choose $a=-1$ and $b=\dfrac12$ , so that

$\dfrac1{24}=-\dfrac18+\dfrac16$

Recalling that $\dfrac13=0.333\ldots$ , it follows that $\dfrac16=0.166\ldots$ . So,

$\dfrac1{24}=0.125+0.166\ldots=0.04166\ldots$
$\implies\dfrac7{24}=0.25+0.4166\ldots=0.29166\ldots$

6 0

3 years ago

Una solución tiene un valor de pH=5 Cuál es la concentración molar de OH-?

Mnenie [13.5K]

Answer:

Podemos hacer la conversión entre [\text{H}^+][H

]open bracket, start text, H, end text, start superscript, plus, end superscript, close bracket y \text{pH}pHstart text, p, H, end text mediante las siguientes ecuaciones:

\begin{aligned}\text{pH}&=-\log[\text{H}^+]\\ \\ [\text H^+]&=10^{-\text{pH}}\end{aligned}

]

=−log[H

]

=10

−pH

5 0

2 years ago

Simplify the expression A(A^-1 + B^-1)B(A + B)^-1.​

Simplify the expression A(A^-1 + B^-1)B(A + B)^-1.