2 years ago

Hello, I need help ASAP please help me

Mathematics

1 answer:

topjm [15]2 years ago

5 0

Answer:

Step-by-step explanation:

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Please help! i think the answer is 12 but any verification would be greatly appreciated!

ANEK [815]

Answer:

13.9 or 14

Step-by-step explanation:

a^2 + b^2 = c^2

5^2 + 13^2 = c^2

25 + 169 = 197

square root 197 to get c

c = 13.9 (14 rounded up)

Helpful thing to note is that the hyptoenuse will always be longer than your "long side" of the triangle

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2 years ago

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1/7 rounded to the nearest thousand

Semmy [17]

1/7 = 0.14285714
rounded to the nearest thousandth, it would be 0.143

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2 years ago

If you place these marbles in a bad, Close your eyes, and choose a marble, what is the probability that it’ll be pink.

Illusion [34]

Answer:3/14

Step-by-step explanation:

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2 years ago

When building a house, you have the choice of seven different floor plans, brick or stone exterior and carpet or hardwood floori

tigry1 [53]

You would multiply all of the choices: 7 x 2 x 2=28

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2 years ago

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The height of a trapezoid can be expressed as x-4, while the bases can be expressed as x+4 and x+9. If the area of the trapezoid

hram777 [196]

Check the picture below.

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{bases}{parallel~sides}\\ \cline{1-1} h= x - 4\\ a = x+4\\ b=x+9\\ A=99 \end{cases}\implies 99=\cfrac{(x-4)[(x+4)+(x+9)]}{2} \\\\\\ 99=\cfrac{(x-4)[2x+13]}{2}\implies 198=\stackrel{\mathbb{FOIL}}{2x^2+5x-52}\implies 0=2x^2+5x-250$

$\bf 0=(2x+25)(x-10)\implies x= \begin{cases} ~~\begin{matrix} -25 \\[-0.6em]\cline{1-1}\\[-5pt]\end{matrix}~~\\ 10 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{larger base}}{x+9}\implies 10+9\implies 19$

keeping in mind that "x" cannot be equal to -25, since that'd give us negative values on either base and the bases are a positive value.

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2 years ago

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