In the equation 4x^3=60 , what is the value of x ?

Answers

Answer 1

Answer: The value of x should be -10

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Caitlin had $402 in her bank account. She withdrew $15 each week to pay for a swimming lesson. She now has $237.a. Write an equation that can be used to find the number of swimming lessons that she paid for.
b. How many swimming lessons did she pay for?
c. At the time she has $237, the cost of a lesson rose to $19. How many lessons can she pay for with her remaining $237?

Answers

a.) Let x be the number of swimming lessons she had, then
402 - 15x = 237

b.) 15x = 402 - 237 = 165
x = 165/15 = 11
She had 11 swimming lessons

c.) Let the number of lesson she had be y, then 19y = 237
y = 237/19 = 12 lessons
She can pay for 12 lessons with her remaining $237.

A) Equation:

($402 - $237) ÷ $15 = y

B) Solution:

$402 - $236 = $165

$165 ÷ $15 = 11

Answer: 11 Swimming Lessons

C) Equation:

$237 ÷ $19 = 13

Answer: 13 Swimming Lessons

A study is done on the population of a certain fish species in a lake. Suppose that the population size P(t) after t years is given by the following exponential function. P(t)=280(1.29)^t Find the initial population size?
does the function represent growth or decay?
By what percentage does the population change each year?

Answers

Answer:

280
function represent growth.
29 %

Step-by-step explanation:

Equation to calculate population size after time, t

P(t) = 280(1.29)^t

To find initial population size we will take t = 0

P(0) = 280(1.29)^0

= 280(1)

= 280

To find that function represent growth or decay

P(1) = 280(1.29)^1

= 280(1.29)

= 361.2

Its means that after a year population increases. Hence, function represent growth.

By what percentage does the population change each year?

(361.2 - 280 / 280) * 100%

= 29 %

Answer:

280

function represent growth.

29 %

For f(x)=2x+1 and g(x)=x^2-7 find (f•g)(x)

Answers

(f•g)(x) = (2x+1) (x^2-7)
(f•g)(x) = 2x^3 + x^2- 14x - 7

............................................

Answer:

^he right

Step-by-step explanation:

If p and q are non-zero rational numbers, and s and t are irrational numbers, select all of the statements that are always false.answer choices are
The product pq is irrational.

The product pt is irrational.

The quotient pq is irrational.

The product st is irrational.

The quotient st is rational.

Answers

The false statements are:

The product pq is irrational.

The quotient pq is irrational.

The quotient st is rational.

A rational number is a number can be expressed as a fraction of two whole numbers. While, an irrational number is a number that cannot be expressed as the fraction of two whole numbers.

Examples of rational numbers are: 6, 2,3

Examples of irrational numbers are: √2, √3

Let p and q be represented with 2 and 6 respectively.

The product of 2 and 3 = 2 x 6 = . The number is a rational number

Let p and t be represented with 2 and √2 respectively.

The product of 2 and √2 = 2 x√2 = 2√2. The product is irrational

The quotient of pq = 6 /2 = 3.

The quotient is rational.

Let s and t be represented with √2, √3. The product is √2 x √3 = √6. The product is irrational.

The quotient of s and t = √2 /√3.

The number is irrational.

To learn more about rational numbers, please check: brainly.com/question/15815501?referrer=searchResults

Answer:

The false choices are A, C, and E

Step-by-step explanation:

Let's make an example:

p=1

q=2

s=sqrt(3)

t=sqrt(6)

Since pq=1*2=2, the answer is rational and A is false.

Since pt=1*sqrt(6)=sqrt(6), the answer is irrational and B is true.

Since p/q=1/2=0.5, the answer is rational and C is false.

Since st=sqrt(3)*sqrt(6)=sqrt(18), the answer is irrational and D is true.

Since s/t=sqrt(3)/sqrt(6)=sqrt(1/2), the answer is irrational and E is false.

Please help asap 29 pts

Answers

-|6-18|

-|-12|

-12

Answer -12

ChoiceD

What is the reading in kwh of the electric meter shown in the exam figure below?

Answers

Answer:

(C)=0631

Step-by-step explanation:

Kwh is the unit of measurement which is equal to the amount of the energy being used or the amount of energy you are using.

In order to get the readings of kwh of the electric meter, take the smallest reading when there are numbers from 0 to 9 and zero is always taken if the meter points between the number 9 and 0.

Hence, from the given meter, the first meter points between 0 and 1, thus reading will be 0 as 0 is the smallest of the two. Next, the reading is between 6 and 7, therefore the reading will be 6. similarly, the rest readings will be 3 and 1. Therefore, the correct reading will be: 0631

What is the reading in kwh of the electric meter shown in the exam figure below?

The answer is letter C. 0631. Always read the dial from left to right. If the dial is in between the numbers, choose the smaller number. If it is between 9 and 0, choose 9.

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