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pogonyaev
3 years ago
13

What is the length of AB?

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
7 0

Answer:

5 cm

Step-by-step explanation:

Sin 30° = opposite / hypothenus

= AB / 10cm

AB = sin 30° × 10 cm

= 5 cm

Dovator [93]3 years ago
4 0

Answer:

AB = 5

Step-by-step explanation:

The side opposite the 30 degree angle will have the shortest length. The side opposite the 60 degree angle will be  √3  times as long, and the side opposite the 90 degree angle will be twice as long.

In this case we just divide 10 by 2

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What is the equation of the line that is parallel to line y = -3x – 8 and passes
qwelly [4]

Answer:

y = -3x + 3

Step-by-step explanation:

Since the line is parallel, it has the same slope. Plug the point you have into the equation y - y1 = slope (x -x1) to get your answer, which should be y = -3x +3

Hopefully this helps - let me know if you have any questions!

6 0
3 years ago
Read 2 more answers
PLEASE HELP 2O POINTS
vovangra [49]
C. The first is a solution, but the second is not.

5x - y/3 = 13 ; (2,-9)
substitute the letters:
5(2) - (-9/3) = 13 
10 - (-3) = 13 : note that deducting a number with a negative sign turns both sign as positive.
10 + 3 = 13 ;
13 = 13

5x - y/3 = 13 ; (3,-6)
5(3) - (-6/3) = 13
15 - (-2) = 13
15 + 2 = 13
17 = 13 not equal. not a solution

hope i could help
4 0
3 years ago
Read 2 more answers
Is it more difficult to run up a ramp with a slope of 1/5 or a ramp with a slope of 5? Explain.
stich3 [128]

Is it more difficult to run up a ramp with a slope of 1/5 or a ramp with a slope of 5? Explain.  

a dlope of 1/5 is walkable; a slope of 5 is not without climbing gear.

6 0
3 years ago
If an investment of $3000 grows to $4432.37 in eight years with interest compounded annually , what is the interest rate?
melamori03 [73]
\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$4432.37\\
P=\textit{original amount deposited}\to &\$3000\\
r=rate\to r\%\to \frac{r}{100}\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &8
\end{cases}

\bf 4432.37=3000\left(1+\frac{r}{1}\right)^{1\cdot 8}\implies \cfrac{4432.37}{3000}=(1+r)^8
\\\\\\
\sqrt[8]{\cfrac{4432.37}{3000}}=1+r\implies \sqrt[8]{\cfrac{4432.37}{3000}}-1=r
\\\\\\
0.0500001086\approx r\qquad\qquad\cfrac{r\%}{100}\approx 0.0500001086
\\\\\\
r\%\approx 100\cdot 0.0500001086\implies r=\stackrel{\%}{5}
6 0
4 years ago
PLZ HELP ASAP SOLVE SIMMILAR TRIANGLES (BASIC)
GuDViN [60]

<span>By similarity of triangles we have the following relationship:</span>

<span> (x) / (6) = (18) / (9)</span>

<span> Simplifying we have:</span>

<span> (x) / (6) = 2</span>

<span> Clearing the value of x we have:</span>

<span><span> x = 6 * 2</span></span>

<span><span> X = 12</span></span>

<span><span> Answer:</span></span>

<span><span> The value of x for this case is equal to:</span></span>

<span><span> <span>X = 12</span></span>
</span>

5 0
4 years ago
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