3 years ago

17. Convert 7/8 into a fraction using long division. Is it a terminating or repeating decimal? Why

Mathematics

1 answer:

scoray [572]3 years ago

8 0

7 / 8 = 0.875

It is a terminating decimal because the decimal has a finite amount of numbers.

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Write the statement below as a math expression

lukranit [14]

D. 2(n-8)

The difference of a number and eight is separate from being multiplied by 2 which is why you would use parenthesis.

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3 years ago

Please answer this correctly

olasank [31]

Answer:

12 days

Step-by-step explanation:

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The dimensions of a rectangle can be given by x+9 and x-2. If the area is 60ft^2, what is the value of X?

Veronika [31]

Answer:

Step-by-step explanation:

(x + 9) * (x - 2) = 60

x^2 - 2x + 9x - 18 = 60

x^2 + 7x - 18 = 60

x^2 + 7x = 78

FACTORING:

x(x + 7) = 78

x = 6

6 0

3 years ago

IMPORTANT <br><br>[how do you]Find sin theta if tan theta = 3/4

zvonat [6]

$\bf tan(\theta )=\cfrac{\stackrel{opposite}{3}}{\stackrel{adjacent}{4}}\impliedby \textit{let's find the \underline{hypotenuse}}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies c=\sqrt{a^2+b^2}
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
c=\sqrt{3^2+4^2}\implies c=5
\\\\\\
sin(\theta )=\cfrac{\stackrel{opposite}{3}}{\stackrel{hypotenuse}{5}}$

bear in mind that, though the square has two valid roots, one negative and one positive, the hypotenuse is just a radius distance, and therefore is never negative.

5 0

4 years ago

Factor the expression completely:<br> 2x² + 5x - 12

Finger [1]

Using the slip and slide method:

2x^2+5x-12
x^2+5x-24
(x+8)(x-3)

(x+8/2)(x-3/2)
(x+4)(2x-3)

Final answer: (2x-3)(x+4)

7 0

3 years ago

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