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2 years ago

Write the number .00000325 in scientific notation

Mathematics

2 answers:

slega [8]2 years ago

8 0

.0000”325 is 3.25 x 10-6 in scientific notation

lana66690 [7]2 years ago

4 0

3.25*10^-6
The correct answer is

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Write an expression in simplest form that represents the cost for shampooing and cutting W women's hair and M men's hair

Tema [17]

Women's cut and shampoo is $20. Men's cut and shampoo is $9.

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3 years ago

SOLVE PLEASE, FIND THE VALUE OF X! 7x/3+2=-15

nikklg [1K]

Answer:

${ \tt{ \frac{7x}{3} + 2 = - 15 }} \\ \\ { \tt{ \frac{7x + 6}{3} = - 15 }} \\ \\ { \tt{7x + 6 = - 15 \times 3}} \\ \\ { \tt{7x + 6 = - 45}} \\ \\ { \tt{7x = - 45 - 6}} \\ \\ { \tt{7x = - 51}} \\ \\ { \boxed{ \tt{x = - 7.3}}}$

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2 years ago

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If the perimeter of a rectangle is 38 cm and the area is 78 square cm, then what are the dimensions of the rectangle?

nexus9112 [7]

The length is 13 and the width is 6. The way I figured it out is: find two factors of the area (that if multiplied with each other, they equal the area) and see which ones add up and then get multiplied by two to find the perimeter. I found 6 and 13 and then added them together to get 19. Then I multiplied 19 by two and got 38. This is how I have always done it idk.

Your answer is length = 13 and width = 6.
hope this helps :)

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3 years ago

MARK AS BRAINLEST

Ierofanga [76]

Answer:

Option C $3n^{2}+n-2$

Step-by-step explanation:

<u><em>Verify each expression</em></u>

case A) we have

$5n^{2}+6n-1$

In this expression the term of n is 6n

has a coefficient of positive 6

case B) we have

$2n^{2}-5n+1$

In this expression the term of n is -5n

has a coefficient of negative 5

case C) we have

$3n^{2}+n-2$

In this expression the term of n is n

has a coefficient of positive 1

case D) we have

$4n^{2}-n+9$

In this expression the term of n is -n

has a coefficient of negative 1

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3 years ago

What is the length of CD in this diagram, ABC - EDC,

natima [27]

Answer:

Option A is the right option.

solution,

∆ABC~∆EDC

$\frac{bc}{cd} = \frac{ac}{ec} \\ \:$

putting the values,

$\frac{20 - x}{x} = \frac{20}{5} \\ or \: 5(20 - x) = 20x(cross \: multiplication) \\ or \: 100 - 5x = 20x \\ or \: - 5x - 20x = - 100 \\ or \: \: - 25x = - 100 \\ \: or \: x = \frac{ - 100}{ - 25} \\ x = 4$

Hope this helps..

Good luck on your assignment..

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3 years ago

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