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4 years ago

Simplify the following expressions

Mathematics

1 answer:

Vlad [161]4 years ago

4 0

Answer:

d-5b

b^4

24ec^2x^2

Step-by-step explanation:

1. You just add all the a's.

2. Collect like terms.

(3d−2d)+(2b−7b)

Simplify.

d−5b

3. You just need to multiply all the b's together.

4. Take out the constants.

(3×2×4)ccxxe

Simplify 3×2×4 to 24

24ccxxe

Use Product Rule: x^ax^b=x^a+b

24c^2x^2e

Regroup terms.

24ec^2x^2

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schepotkina [342]

Answer: I think the answer is C.

Step-by-step explanation:

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3 years ago

A used bookstore will trade 2 of its books for 3 of yours if Val brings in 18 books to trade how many books can she get from the

UNO [17]

3 of yours for 2 of its.
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3 years ago

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The length s(t)s(t)s, (, t, )of the side of the base of a square prism is decreasing at a rate of 777 kilometers per minute and

gavmur [86]

Answer:

$\frac{dA_{s}}{dt} = -148\,\frac{km^{2}}{min}$

Step-by-step explanation:

The surface area of the square prism is obtained by using the following formula:

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The rate of change of the surface area can be found by deriving the function with respect to time:

$\frac{dA_{s}}{dt} = 4\cdot [h(t)\cdot \frac{dl}{dt} + l(t)\cdot \frac{dh}{dt}] + 2\cdot l(t)\cdot \frac{dl}{dt}$

Known variables are summarized below:

$h(t) = 9\,km$

$l(t) = 4\,km$

$\frac{dh}{dt} = 10\,\frac{km}{min}$

$\frac{dl}{dt} = -7\,\frac{km}{min}$

The rate of change is:

$\frac{dA_{s}}{dt} = 4\cdot [(9\,km)\cdot (-7\,\frac{km}{min} )+(4\,km)\cdot (10\,\frac{km}{min} )] + 2\cdot (4\,km)\cdot (-7\,\frac{km}{min} )$

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lisov135 [29]

Answer:

Choice box 1: Always

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Choice box 3: adjacent

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Zigmanuir [339]

A. yes...it is a function because there is no repeating x values.
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y = mx + b
slope(m) = 3
(5,2)...x = 5 and y = 2
now we sub
2 = 3(5) + b
2 = 15 + b
2 - 15 = b
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so the equation is : y = 3x - 13
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the function has a greater value

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3 years ago