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2 years ago

Exponential expression please help

Mathematics

2 answers:

Lelechka [254]2 years ago

8 0

${3}^{ - 2} = \frac{1}{9}$

Pepsi [2]2 years ago

5 0

The answer to the question is 1/9

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a restaurant owner bought 4 boxes of disposable cups for $145 , with each box containing 1,656 cups. if he wanted to divvy up th

snow_lady [41]

1104 cups per 1 restaurant

There are FOUR boxes EACH containing 1656 cups, MEANING that you will do 1656 x 4, getting 6624.

You divide this by 6, and TADA!

Hope this helps!

5 0

3 years ago

WORTH 50!! Answer it with explanation and the answer is not y+6 I have some idea on how to do this.

mafiozo [28]

Answer:

Therefore, equation of the line that passes through (16,-7) and is perpendicular to the line $2x-3y=12$ is $3x+2y=34$

Step-by-step explanation:

Given:

$2x-3y=12$

To Find:

Equation of line passing through ( 16, -7) and is perpendicular to the line

$2x-3y=12$

Solution:

$2x-3y=12$ ...........Given

$\therefore y=\dfrac{2}{3}\times x-4$

Comparing with,

$y=mx$

Where m =slope

We get

$Slope = m1 = \dfrac{2}{3}$

We know that for Perpendicular lines have product slopes = -1.

$m1\times m2=-1$

Substituting m1 we get m2 as

$m2=-\dfrac{3}{2}$

Therefore the slope of the required line passing through (16 , -7) will have the slope,

$m2=-\dfrac{3}{2}$

Now the equation of line in slope point form given by

$(y-y_{1})=m(x-x_{1})$

Substituting the point (16 , -7) and slope m2 we will get the required equation of the line,

$(y-7)=-\dfrac{3}{2}\times (x-16)\\\\2y+14=-3x+48\\3x+2y=34......Equation\ of\ line$

Therefore, equation of the line that passes through (16,-7) and is perpendicular to the line $2x-3y=12$ is $3x+2y=34$

6 0

3 years ago

an object accelerates from rest to a velocity of 4.om / s over a distance of 20m . what was it's acceleration

AfilCa [17]

Acceleration is the change in velocity over time. There's are formula's for such problems which are called kinematics equations. Look em up. One of them doesn't have t (time) in them you would normally use that one to solve this problem. 16/2/20=a=0.4m/s^2

I did it for you but please look it up, understand and memorize it ;)

7 0

3 years ago

You need $40 $ 40 to buy a new pair of shoes. You have saved $15 $ 15 . Which inequality models how much more you must save?

Hoochie [10]

Answer:

40 < 15+x

Step-by-step explanation:

8 0

3 years ago

A psychology class consists of 14 males and 36 females. if the professor selects name from the class list using random sampling,

Pavel [41]

The total number of students is 14+36, or 50. So the chance that a selected student is female is 36/50, or 18/25.

3 0

3 years ago