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2 years ago

Please help 2 questions

Mathematics

1 answer:

inna [77]2 years ago

8 0

Answer:

1) 2002

2) 92

Step-by-step explanation:

First, you need to find the area of the triangular base. The height of the triangle is 7, and the base is 26, meaning that the area is 7*26/2=91. Multiplying this by the length of the prism, you get 2002 cubic meters.

First, you need to find the area of the trapezoidal base. The two bases of the trapezoid have lengths 12 and 11, while the height is 8, meaning that the area is 8*(12+11)/2=92 cubic centimeters.

Hope this helps!

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7^16/7^12=7^-18/? what is the missing denominator

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$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
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\qquad \qquad
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\qquad \qquad 
a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}\\\\
-------------------------------\\\\$

$\bf \cfrac{7^{16}}{7^{12}}=\cfrac{7^{-18}}{x}\implies x\cdot 7^{16}=7^{12}\cdot 7^{-18}\implies x\cdot 7^{16}=7^{12-18}
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Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~

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