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puteri [66]
4 years ago
15

Which best describes the domain and range of the function y=4x^2

Mathematics
1 answer:
nasty-shy [4]4 years ago
5 0
There is no restriction on the domain so:

x=(-oo,+oo)  (all real numbers)

Since x^2, the range is limited to [0,+oo)  (all real non-negative numbers)
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Five more than 3/4 of a number C is 26 find the number
Furkat [3]

Answer:

28

Step-by-step explanation:

let x be the number,

(3/4)x+5=26

(3/4)x=21

x=21*(4/3)

x=28

8 0
3 years ago
Read 2 more answers
Solve x^2=2x+3 by factoring
solong [7]

The solution is x = 1 and x = -3

<em><u>Solution:</u></em>

Given that we have to solve the given equation by factoring

Given equation is:

x^2=2x + 3\\\\x^2 - 2x - 3 = 0

\text{Consider the form } x^2+bx+c

Find a pair of integers whose product is c and and whose sum is b

\text{Compare } x^2-2x-3 = 0 \text{ with } x^2+bx +c\\\\\text{We get } b = -2 \text{ and } c = -3

Now find, a pair of integers whose sum is -2 and product is -3

The integers that satisfies this condition is -1 and 3

When we add - 1 and 3 we get 2

When multiply -1 and 3 we get -3

Thus the pair of integers are -1 and 3

Write the factored form using these integers.

(x-1)(x+3) = 0

The Zero Product Property states that if ab = 0, then either a = 0 or b = 0, or both a and b are 0

Set the factors equal to 0

x - 1 = 0 \text{ and } x + 3 = 0

x = 1 and x = -3

Thus the solution is x = 1 and x = -3

4 0
3 years ago
Make x the subject of the formula (mx^2=f)
wolverine [178]

Answer:

x = ± \sqrt{\frac{f}{m} }

Step-by-step explanation:

Given

mx² = f ( isolate x² by dividing both sides by m )

x² = \frac{f}{m} ( take the square root of both sides )

x = ± \sqrt{\frac{f}{m} }

4 0
4 years ago
Question 5(Multiple Choice Worth 4 points) Find negative square root of 16. −4 4 ±4 −8
Jobisdone [24]

Answer:

-4

Step-by-step explanation:

-√16

-4

3 0
3 years ago
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Which of the following is the best buy?
-BARSIC- [3]

The $1.25 one for 9 Oz box of rice would be the best buy.

<h3>How to find the Unit Price?</h3>

To get the best buy among the given items and prices, we need to find the unit price. Thus, the formula is;

Unit price = Price/Quantity

A) Unit Price = 0.90/6 = 0.15

B) Unit Price = 1.93/12 = 0.15083

C) Unit price = 2.42/16

Unit Price = 0.15125

D) Unit Price = 1.25/9 = 0.138

The $1.25 one for 9 Oz box of rice would be the best buy.

Read more about Unit price at; brainly.com/question/2804909

#SPJ1

3 0
2 years ago
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