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svetoff [14.1K]
3 years ago
8

E2

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

See Explanation

Step-by-step explanation:

The question is not properly formatted.

<em>Assume that the given parameter is: 4</em>

Required

The multiplicative inverse

Let a number be x, and the multiplicative inverse be y. The relationship between them is:

y * x = 1

Make y the subject

y = \frac{1}{x}

So;; for the assumed given parameter.

The multiplicative inverse is:

y = \frac{1}{4}

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Solve for the unknown quantity in each proportion.
Nady [450]

Answer:

D

Step-by-step explanation:

27÷3=9

7 0
3 years ago
Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.
ivolga24 [154]

Answer:

The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  .

Step-by-step explanation:

Given as :

The time for which Leilani practiced piano = \dfrac{3}{5} hours

The time for which Sarah practiced piano = \dfrac{7}{8} hours

Let the number of hours did Sarah practice more than Leilani = T hours

<u>Now, According to question</u>

The number of hours did Sarah practice more than Leilani = \dfrac{7}{8} hours -  \dfrac{3}{5} hours

Or, T =  \dfrac{35-24}{40} hours

Or, T =  \dfrac{11}{40} hours

So,The number of hours did Sarah practice more than Leilani = T =  \dfrac{11}{40}  hours

Hence, The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  . Answer

3 0
3 years ago
Evaluate f(3) divided by k(2) using functions f(x) = x^2 - 1 and k(x) = x + 1.
m_a_m_a [10]
3^2-1/2+1=
9-1/3=
8/3=
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4 0
3 years ago
Change the fraction w-3/w+5 into an equivalent fraction with the denominator w2 + w – 20.
viktelen [127]
ANSWER

\frac{ {w}^{2}  - 7w + 12}{ {w}^{2}  + w - 20 }

EXPLANATION


The given fraction is,

\frac{w - 3}{w + 5}

To get an equivalent fraction, we multiply both the numerator and the denominator by the same quantity that will give us

w²+w-20

in the denominator.


This implies that,

\frac{w - 3}{w + 5}  =  \frac{(w - 3)(w - 4)}{(w + 5)(w - 4)}

We multiply out the numerators and denominators using the distributive property to obtain,


\frac{w - 3}{w + 5}  =  \frac{ {w}^{2}  - 4w - 3w + 12}{ {w}^{2} - 4w + 5w - 20 }

This simplifies to

\frac{w - 3}{w + 5}  =  \frac{ {w}^{2}  - 7w + 12}{ {w}^{2}  + w - 20 }


5 0
3 years ago
Simplify (7ty)(3t)<br> (answer fast please)
attashe74 [19]
21t^2y is the answer!
4 0
3 years ago
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