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3 years ago

Which expression is equivalent to z+(z+6)?

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

Answer:

2(z+3)

Step-by-step explanation:

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The dimensions of a rectangle box are consecutive integers. If the box has volume of 13,800 cubic centimeters, what are its dime

dezoksy [38]

If the dimensions were all the same number ... the box was a cube ...
then each dimension would be (the cube root of 13,800) cm.

∛13,800 = 23.986... (rounded)

so the place to look is around 23 .

(22 x 23 x 24) = 12,144 <== too small; go up one integer

(23 x 24 x 25) = 13,800 <== Eureka !

The consecutive integers are 23, 24, and 25 .

4 0

3 years ago

Need help with this question ! Due soon*

Doss [256]

Answer:

x = 10, AB = 57

Step-by-step explanation:

In a trapezoid, the length of the median is one-half the sum of the lengths of the bases. From this, we have:

$\frac{1}{2} (5x + 7 + 8x - 11) = 63$

$13x - 4 = 126$

$13x = 130$

$x = 10$

$5(10) + 7 = 50 + 7 = 57$

5 0

3 years ago

What is 4/8 simplified

Vinvika [58]

Answer:

exact form: 1/2

decimal form: 0.5

Step-by-step explanation:

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3 years ago

The value of a machine depreciates each year by 5% of its value at the beginning of that year. If its value when new on 1st Janu

Artemon [7]

$\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &10250\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=\textit{elapsed time}\dotfill &9\\ \end{cases} \\\\\\ A=10250(1 - 0.05)^{9}\implies A=10250(0.95)^9\implies A\approx 6460$

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2 years ago

If A=−2x+8 and B=2x−4, find an expression that equals 2A+B in standard form.

kirza4 [7]

Answer: -2x + 12

Step-by-step explanation:

2A + B = 2(-2x + 8) + (2x - 4) = -4x + 16 + 2x - 4 = -2x + 12

5 0

2 years ago