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Levart [38]
3 years ago
13

Find the surface area of the shape below.

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

A=384 cm^{2}

Step-by-step explanation:

A =2(wl+hl+hw)

A=2(8*8+8*8+8*8)

A=2(64+64+64)

A=2(192)

A=384

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Factor completely<br> 9-6a-24a^2
Natasha_Volkova [10]
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8a² +6a - 9 =0

x=(-b +/-√(b² - 4ac))/2a
x = (-6 +/-√(36+4*8*9)  /(2*8) = (-6 +/-√(324)  /16 =  (-6 +/-18)/16
x1 =  (-6 +18)/16 = 0.75
x2 =  (-6 -18)/16 = - 1.5

-24a²- 6a +9 = - 3(8a² +6a - 9) = -3(a - 0.75)(a + 1.5)
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3 years ago
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Does the expression Y&gt;2x-1 define a function?
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3 years ago
In a poll of Mr. Briggs's math class, 67% of the students say that math is their favorite academic subject. The editor of the sc
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I am confused. Can somebody explain this to me?
jolli1 [7]

Answer: If they worked together, it would take 31.5 minutes

Step-by-step explanation:

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t1= the time it took for the first person to complete the task.

t2= the time it took for the second person to complete the task.

tb= the time it took for both of them to complete the task.

We have the values for both t1 and t2, but not for tb.

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\frac{1}{45} +\frac{1}{105} = \frac{1}{x}

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The LCM for both fractions is 315, so now we multiply BOTH sides of the equation by 315.

\frac{315}{45} + \frac{315}{105} = \frac{315}{x}

This will simplify nicely, so now we just need to get x on the other side.7 + 3 = \frac{315}{x} \\\\\ 10*x = \frac{315}{x} * x

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