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2 years ago

Which expression is the simplest form of -(2x + y) + 3(x - 4y)?

Mathematics

1 answer:

xenn [34]2 years ago

6 0

Answer:

The answer is x - 13y

Step-by-step explanation:

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Luke has 48 books he puts 7 books in a box how many boxes can he fill?? Explain how you interpreted the remainder.

madam [21]

You divide 48 by 7 and you get the remainder of 6.8 . Therefore he can ONLY put 6 books in each box.

3 0

3 years ago

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Given g (c)=9 (c )^2+7=?

AVprozaik [17]

C^2+7 would equal 88. the first equation states that C=9, so you can just plug in 9 for C

3 0

3 years ago

What is the expression of 3^9

nordsb [41]

Well, 3^9 is the same thing as
3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
So 3^9 is equal to 19,683

4 0

3 years ago

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Given that tan^2 theta=3/8,what is the value of sec theta?

algol [13]

Answer:

The value of SecФ is $\pm \sqrt{\frac{11}{8}}$ .

Step-by-step explanation:

Given as for trigonometric function :

tan²Ф = $\frac{3}{8}$

Or, tanФ = $\sqrt{\frac{3}{8} }$

∵ tanФ = $\frac{Perpendicular}{Base}$

So, $\frac{Perpendicular}{Base}$ = $\sqrt{\frac{3}{8} }$

So, Hypotenuse² = perpendicular² + base²

or, Hypotenuse² = ( $\sqrt{3}$ )² + ( $\sqrt{8}$ )²

Or, Hypotenuse² = 3 + 8 = 11

Or, Hypotenuse = ( $\sqrt{11}$ )

Now SecФ = $\frac{Hypotenuse}{Base}$

or, SecФ = $\frac{\sqrt{11}}{\sqrt{8}}$ = $\sqrt{\frac{11}{8} }$

<u>Second Method</u>

Sec²Ф - tan²Ф = 1

Or, Sec²Ф = 1 + tan²Ф

or, Sec²Ф = 1 + $\frac{3}{8}$

Or, Sec²Ф = $\frac{11}{8}$

Or, SecФ = $\pm \sqrt{\frac{11}{8}}$

Hence The value of SecФ is $\pm \sqrt{\frac{11}{8}}$ . Answer

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3 years ago

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How to solve for x in the equation a 3x=x/2?

aalyn [17]

3x = x / 2

Mmc (2,1) = 2

6x = x
6x- x = 0
5x= 0
x = 0/5
x = 0

8 0

3 years ago