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3 years ago

Which algebraic expression represents the difference of fifty four and seven times a number

Mathematics

2 answers:

givi [52]3 years ago

3 0

7x-54 mark as branliest

zmey [24]3 years ago

3 0

7x -54 is the correct

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Help me asap!!!!!!! please!!!

Alex_Xolod [135]

Answer:

see attachment

Step-by-step explanation:

The applicable property of exponents is ...

$\sqrt[n]{x^m}=x^{\frac{m}{n}}$

The 4th selection uses this property directly. The 3rd selection uses the property

$(a^b)^c=a^{bc}$

to show that the cubes of the two expressions are equivalent. Since all the numbers involved are real numbers, this is equivalent to showing the expressions equivalent.

6 0

3 years ago

Integrate dx/sin3xtan3x

disa [49]

$\displaystyle\int\frac{\mathrm dx}{\sin3x\tan3x}=\int\frac{\cos3x}{\sin^23x}$

Set $u=\sin3x$ , so that $\mathrm du=3\cos3x\,\mathrm dx$ . Then the integral is

$\displaystyle\frac13\int\frac{\mathrm du}{u^2}=-\frac1{3u}+C=-\frac1{3\sin3x}+C=-\frac13\csc3x+C$

Or, if you meant exponents in place of coefficients,

$\displaystyle\int\frac{\mathrm dx}{\sin^3x\tan^3x}=\int\csc^3x\cot^3x\,\mathrm dx=\int\csc^2x\cot^2x\csc x\cot x\,\mathrm dx$

Let $u=\csc x$ , so that $\mathrm du=-\csc x\cot x\,\mathrm dx$ , and use the fact that $\csc^2x=\cot^2x+1$ to get

$\displaystyle-\int u^2(u^2-1)\,\mathrm du=\int (u^2-u^4)\,\mathrm du=\frac13u^3-\frac15u^5+C$
$=\dfrac13\csc^3x-\dfrac15\csc^5x+C$

8 0

3 years ago

The length of a rectangle is 4 units shorter than half the width. If the length of the rectangle is 18 units, which equation can

maria [59]

Using x for width (x/2)-4=18. completely solved x=44

4 0

3 years ago

Read 2 more answers

Graph the solution to the inequality on the number line : q < 69.5

liq [111]

Answer:

hopes this helps :]

7 0

2 years ago

Read 2 more answers

How many servings of 3/4 cups are in 32/2cups

NARA [144]

Answer: 3/64

Step-by-step explanation: I think you ask 3/4 divided by 32/2 if you are the answer is 3/64. How to divided is first simplify the expression, if possible, by canceling the common factors. But if your asking me to do 32/2 divided by 3/4 the answer is 64/3 if you want it to be an improper fraction but if you want it to be a mixed fraction it would be 21 1/3. How to divided is first simplify the expression, if possible, by canceling the common factors.

8 0

3 years ago