MATHEMATICS HIGH SCHOOL

If f(x) = 2x3 – 2, what is the value of f(2)?

Answers

Answer 1
Answer:

Answer:

f(2) = 14

Step-by-step explanation:

Step 1: Define

f(x) = 2x³ - 2

f(2) = x = 2

Step 2: Substitute and evaluate

f(2) = 2(2)³ - 2

f(2) = 2(8) - 2

f(2) = 16 - 2

f(2) = 14

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An airplane flew for 8 hours at an airspeed of x miles per hour (mph), and for 7 more hours at 325 mph. If the average airspeed for the entire flight was 350 mph, which of the following equations could be used to find x ? A. x + 325 = 2(350)
B. x + 7(325) = 15(350)
C. 8x – 7(325) = 350
D. 8x + 7(325) = 2(350)
E. 8x + 7(325) = 15(350)

Answers

E. 8x+7(325)=15(325)

It would include the 8 hrs. of x miles per hour and the 7 hrs. of 325 miles per hour, giving the total miles. Then, as you eliminate, you can find out what (x) is.

Expand 2 (x+10)
What is the answear 2 (x+10)

Answers

its 2x +20

hope this helped you
it 2x10 you welcome                                                                       

There are only blue yellow and green cubes is a bag. There are three times as many blue cubes as yellow cubes. There are five times as many green cubes as blue cubes. I take out a random cube from the bag, what is the probability that I take out a yellow cube?

Answers

Let the number of yellow cubes be x

Yellow Cubes = x

Blue Cubes = 3x

Green = 5 (3x) = 15x

Ratio : Yellow : Blue : Green = 1 : 3 : 15

P(Yellow) = 1/19

Answer: 1/19

How can you apply the Addition Rule and interpret the answer in terms of the model?

Answers

We can apply the addition rule in the simple way as the addition of two addition .

What is addition?

The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.

Given two function f and g

Function addtion; f + g.

It is the addition of two functions similar to the addition of any two polynomial functions.

we can apply the addition rule in the simple way as the addition of two addition .

Learn more about function;

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P(A or B) = P(A) + P(B)

if u have a dice and want to roll 1 or 2 
P(1) = 1/6
P(2) = 1/6

P(1 or 2) = 1/6 + 1/6 = 2/6 = 1/3 

Pam likes to practice dancing while preparing for a math tournament. She spends 80 minutes every day practicing dance and math. To help her concentrate better on math, she spends 20 minutes more dancing than doing math.Is it possible for Pam to have spent 60 minutes practicing dance every day? Explain your reasoning.

Answers

yes becuase it would be 80/2 then take 20 away from math and give it to dance see? she gets 80mins total  so she spend way more time on dance

Final answer:

Given that Pam spends 80 minutes a day practicing math and dance combined, with dancing taking up 20 minutes more than math, it's mathematically impossible for her to spend 60 minutes on dance. She can only spend 50 minutes on dance and 30 minutes on math.

Explanation:

To answer your question, let's first assume that Pam spends 'x' minutes practicing math. According to the information provided, she spends 20 minutes more dancing than doing math, which means she spends 'x + 20' minutes dancing. The total time she spends practicing both activities is 80 minutes. So, 'x' (math) plus 'x + 20' (dance) equals 80.

This can be represented as the equation: x + x + 20 = 80. By solving this equation, we find that 'x' equals 30. This means that Pam spends 30 minutes practicing math and 50 minutes (30 + 20) practicing dance. Therefore, it is not possible for Pam to have spent 60 minutes practicing dance every day because she only spends 50 minutes practicing dance.

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Can i get some help with #6

Answers

4(x^2) + 2 - (242) ➡0
(2^2 x^2 + 2) - 242 ➡0
4 (x^2 - 60)
Now factor: x^2 -60
4 (x^2 - 60) ➡0
4 ➡0[solve]
x^2➡±60 [by the way]
X ➡ ±  √15 [⬅this might be your answer if you're working with square roots]
Just break it up
4x^2 needs to equal 240
So find what equals 240 when multiplied by 4
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