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3 years ago

6

Please help! Will mark brainliest! Simplify.

tle="(3a^{2}*-3a)" alt="(3a^{2}*-3a)" align="absmiddle" class="latex-formula">

1 answer:

PilotLPTM [1.2K]3 years ago

8 0

<em>S</em><em>t</em><em>e</em><em>p</em><em>-</em><em>b</em><em>y</em><em>-</em><em>s</em><em>t</em><em>e</em><em>p</em><em> </em><em>e</em><em>xplanation</em><em>:</em>

<em>Since</em><em> </em><em>-3a</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>said</em><em> </em><em>to</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>power</em><em> </em><em>of</em><em> </em><em>1</em><em>,</em><em> </em><em>we</em><em> </em><em>add</em><em> </em><em>the</em><em> </em><em>powers</em><em> </em><em>together</em><em> </em><em>and</em><em> </em><em>multiply</em><em> </em><em>the</em><em> </em><em>coefficients</em>

-9a³

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You work for a rental car company. If customers return a car with under half a tank of gas, they are charged $7.50 per gallon of

expeople1 [14]

Answer:

<u>The correct answer is C. $ 39.89</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the questions correctly:

Tank capacity = 21 gallons

Cost of gallon of gas when the car is returned with under half a tank = $ 7.50

Cost of gallon of gas when the car is returned with more than half a tank = $ 5.75

Gas in the tank of the rental car = 1,800 fluid ounces

2. How much should you charge the customer to fill the tank?

Let's recall that 1 gallon = 128 fluid ounces

Now, we will answer the question this way, converting the tank capacity from gallons to fluid ounces:

Capacity of the gas tank = 21 * 128 = 2,688 fluid ounces

Like 1,800 is above the 50% of the tank, we will charge $ 5.75 per gallon to fill up the tank

Now, we calculate the cost of gas per fluid ounce, this way:

Cost per fluid ounce = 5.75/128 = $ 0.04492

Finally, we calculate how many fluid ounces the customer has to pay this way:

We will charge the customer = (2,688 - 1,800) * 0.04492

We will charge the customer = $ 39.89

<u>The correct answer is C. $ 39.89</u>

7 0

2 years ago

Find x <br> Plz help me !!!

mel-nik [20]

Answer:

$\Huge\boxed{x=33.2}$

Step-by-step explanation:

Hello there!

We can solve for x using law of sines

As we can see in the image a side length divided by sin ( its opposite angle) = a different side length divided by sin ( its opposite angle)

So we can use this equation to solve for x

$\frac{21}{sin(35)} =\frac{x}{sin(65)}$

Our objective is to isolate the variable using inverse operations so to get rid of sin (65) we multiply each side by sin (65)

$\frac{x}{sin(65)} sin(65)=x\\\\\frac{21}{sin(35)} sin(65)=\frac{21sin(65)}{sin(35)}$

we're left with

$x=\frac{21sin(65)}{sin(35)}\\x=33.18208755$

assuming we have to round the answer would be 33.18 or 33.2

7 0

3 years ago

Coefficient of 24x+32+4x+3

coldgirl [10]

Firstly, you can combine like terms, or terms that have the same variable and exponents.

24x and 4x both have the variable "x" so it can be combined to make 28x

A coefficient is basically just the number that's used to multiply the variable

In this case, the variable is "x" and the number that will be multiplied to x is 28.

<em>The coefficient is 28.</em>

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3 years ago

Select three ratios that are equivalent to 11 : 1

liq [111]

Answer:

33:3 22:2 44:4 55:5 66:6

Step-by-step explanation:

what are your options? comment them if I didn't include them

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2 years ago

In the above, ABCD is a square with sides of length 6. If X is the midpoint of side AB, and If Z is the midpoint of CD, what is

o-na [289]

Answer:

Step-by-sitstep explanation:

so its easy add ab and after that add the x

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3 years ago