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3 years ago

Find the missing numbers... (2cubed)cubed =2?

Mathematics

1 answer:

kotegsom [21]3 years ago

7 0

((2)^3)^3 = 2^(3*3) = 2^9

hope this will help you

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Which value of x makes the open sentence true? 10 +m2x< 15x-20? 0, 1, 2,3

Zielflug [23.3K]

x=3 if the m was a typo, idk what that means

3 0

3 years ago

In 2001, gold was priced at (0.5x + 300) dollars per ounce. Its price tripled in 2008 and then doubled in 2011. In 2016, its pri

zloy xaker [14]

Given:

Price of gold in 2001 = (0.5x+300)

Its price tripled in 2008 and then doubled in 2011. In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

To find:

An expression for the price of gold per ounce in 2016.

Solution:

We have,

Price of gold in 2001 $= (0.5x+300)$

Its price tripled in 2008.

Price of gold in 2008 $= 3(0.5x+300)$

Then doubled in 2011.

Price of gold in 2011 $= 2\times 3(0.5x+300)$

In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

Price of gold in 2016 $=\dfrac{2}{3}\times 2\times 3(0.5x+300)$

$=2\times 2(0.5x+300)$

$=4(0.5x+300)$

$=4(0.5x)+4(300)$

$=2x+1200$

Therefore, the required expression for the price of gold per ounce is (2x+1200).

8 0

3 years ago

Given that 2x + 7 equals 27 and 3x + 1 equals 28 does 2x + 7 equals 3 x + 1

ICE Princess25 [194]

2×+7=27
2×-7=27-7
2× =20
2/× =20/2
× = 10
2(10)+7=27

3×+1=28
3×-1=28-1=27
3× =27
3/× =27/3
× =9
3(9)+1=28

27 does not equal 28
so no

6 0

3 years ago

A metal rod is placed in a rectangular box as shown in the figure. How long is the rod? Round your answer to the nearest tenth o

Alexandra [31]

Fist we find the legnth of the diagonal
a^2+b^2=c^2
3^2+4^2=c^2
9+16=c^2
25=c^2
c=5

now the other diagonal
11^2+5^2=c^2
121+25=c^2
146=c^2
sqrt both sides12.083
closest is B

7 0

3 years ago

Find the acute angle between the sides of a rhombus whose diagonals are 8cm and 12cm long

Sergeu [11.5K]

Answer:

67.38°

Step-by-step explanation:

The diagonals of a rhombus intersect at their midpoints and make a right angle. They also divide the angles of the rhombus in two equal angles.

So, to find the acute angle of the rhombus, we can use the tangent relation of half this angle in the small triangle made when drawing the diagonals:

tan(angle/2) = 4 / 6

tan(angle/2) = 0.666

angle/2 = 33.69

angle = 67.38°

So the acute angle of the rhombus is 67.38 degrees.

Please check the image attached for better comprehension.

4 0

3 years ago