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3 years ago

What is the value of 2x3 + x2 – x when x = 3?

Mathematics

1 answer:

Bad White [126]3 years ago

7 0

Answer:

Step-by-step explanation:

This is assuming that x2 means x to the power of 2 and that the x on the left is to represent multiplying. First, plug in all of the number to get 2*3+3^2-3.Using PEMDAS, you should solve the exponent to get 9. Then, multiply 2 by 3 to get 6. Add 6 to 9 to get 15. Subtract 2 to 15 to get 12.

TL;DR

2*3+3^2-3

6+9-3

15-3

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Anna bought p packages of paper plates at Party City that cost $4 per package and c packages of cups that cost $3 per package. S

sergeinik [125]

Answer:

$46

Step-by-step explanation:

Cost: 4p + 3c + 16

if p=3 and c=6 then,

4(3) + 3(6) +16

12+18+16

46 dollars spent

4 0

2 years ago

36/48 in simplest form

babunello [35]

Well you can simplify them by dividing by there greatest common factor.
In this case they can both divide by 12!
Thats the biggest number they can divide by...
Soo..
36 ÷ 12 = 3
----------------
48 ÷ 12 = 4

So your answer is 3/4!

Good Luck! :)

3 0

3 years ago

Read 2 more answers

The diameter of the wheels on your car is 25 inches. You are going to drive 458 miles today. Each of your wheels is going to tur

Kipish [7]

d = Diameter of wheels = 25 inches

s = Distance to be traveled by the wheels = 458 miles

Converting the miles to inches

$s=458\times 5280\times 12=29018880\ \text{inches}$

The distance traveled by the wheels in rotation is the circumference

$D=\pi d\\\Rightarrow D=\pi\times 25$

The number of rotations required to cover the distance would be

$\dfrac{s}{D}\\ =\dfrac{29018880}{\pi\times 25}\\ =369479.855599$

$1$ rotation is $360^{\circ}$ so

$369479.855599\times 360=133012748.016^{\circ}$

The number of rotations to cover the required distance is $133012748.016^{\circ}$

Learn more:

brainly.com/question/23298088

brainly.com/question/1066067

4 0

2 years ago

The are of a rectangle is 259cm2 and its length is 18.5 cm .Find its breath

Hoochie [10]

Answer:

A=L×B

259=18.5×B

295=18.5B

295/18.5=18.5B/18.5

8.595=B

5 0

3 years ago

What is the mean of 13,6,8,6,15

Luden [163]

Hey there!

To start, the mean of the answer is also known as the average value of a set of numbers. This is calculated by dividing the sum of the set by the total amount of numbers.

In this case the sum of all the numbers is 13 + 6 + 8 + 6 + 15 which is equal to 48.

Now, divide 48 by the total number of numbers in the set: 48/5 = 9.6

Your final answer should be 9.6, or you can leave it in fraction form as 48/5.

Hope this helps!

4 0

3 years ago

Read 2 more answers