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3 years ago

9

A number decreased by 25

1 answer:

Irina18 [472]3 years ago

6 0

It would be for example: f-25

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Is 100% considered a rational or whole number?

IRINA_888 [86]

The number 100 is a rational number. It is a whole number, or integer.

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3 years ago

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Sin theata=3/5, then cos theata= ?

Elena-2011 [213]

$\bf sin(\theta )=\cfrac{\stackrel{opposite}{3}}{\stackrel{hypotenuse}{5}}\impliedby \textit{let's find the \underline{adjacent side}}
\\\\\\
\textit{using the pythagorean theorem}
\\\\
c^2=a^2+b^2\implies \sqrt{c^2-b^2}=a
\qquad
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
\sqrt{5^2-3^2}=a\implies \pm\sqrt{25-9}=a\implies \pm 4=a
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
~\hfill cos(\theta )=\cfrac{\stackrel{adjacent}{\pm 4}}{\stackrel{hypotenuse}{5}}~\hfill$

5 0

3 years ago

What is the equation of the graphed line written in

Ratling [72]

Answer:

semoga jawapan ini dapat membantu

4 0

3 years ago

a field is in the shape of a rectangle 5/6 mile long and 3/4 mile wide. what is the area of the field.

Nesterboy [21]

Answer: 15/24

Step-by-step explanation: 6x4=24 which is the denominator and 5x3=15 which is the numerator

3 0

4 years ago

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What is the product?<br> (6r-1)(- Br-3)

Andru [333]

Answer:

$-6Br^2-18r+Br+3$

Step-by-step explanation:

we have the expression:

$(6r-1)(- Br-3)$

We need to multiply the two terms in the first parenthesis by the two terms in the second parenthesis:

$(6r)(-Br)+(6r)(-3)+(-1)(-Br)+(-1)(-3)$

we solve each term taking into account the law of signs

(-)(-)=+

and

(+)(-)=-

also for the first term we use that $r*r=r^2$

thus we have:

$-6Br^2-18r+Br+3$

it can be simplified a little more if we factor an r of the second and third term:

$-6Br^2+r(-18+B)+3$

4 0

3 years ago