The answer and how to get it correctly on my own

The Answer And How To Get It Correctly On My Own

Answers

Answer 1
The domain means the allowed values for x. In this example, you can work your way backwards through the equation.

On the outside, there is a square root. You know that the argument for the square root has to be zero or positive (>=0), so

-4x + 20 >= 0. This simplifies to x <= 5. The domain therefore is

(-∞, 5]

If you have trouble following this, please say which part needs clarification.

Related Questions

Ian is 10 years old, how many candles has Ian had on all of his birthday cakes. Remember he has had 10 cakes

Answers

if he had a number of candles based on how old he was turning i would say he had 55 candles 

A coffee pot holds 2 3/4 quarts of coffee. How much is this in cups?

Answers

the answer  is 11 us cups

The formula for the circumference of a circle is C=3.14 multiplied by the radius Determine the circumference when the radius r is 10 cm.

Answers

C = 3.14 × r
r = 10 cm
C = 3.14 × 10 = 31.4 cm

Hope it helped!

Use distributive property and mental math to find the product

7x49

Answers

we remember that the distributive propert is a(b+c)=ab+ac

2 ways we can do this is to write 49 as either 40+9 or 50-1

if we do 40+9
7(49)=7(40+9)=7(40)+7(9)=280+63=343

if we do 50-1
7(49)=7(50-1)=7(50)+7(-1)=350-7=343

I have 140 markers. how many boxes of 10 markers does I need to get 180 markers

Answers

10 more boxes of markers

if half of a loaf of bread is cut into six equal slices, what fraction is each slice of the original loaf?

Answers

1/2 times 1/6
= 1/12

Each slice is 1/12 of the original loaf.

600 can be written as 2a x b x cd where a,b,c and d are all prime numbers find the values of a, b, c and d

Answers

The prime factorisation of 600 is given by

[tex]600 = 2 \times 2 \times 2 \times 3 \times 5 \times 5 = 2^3 \times 3 \times 5^2[/tex]

Therefore, a = 3, b = 3, c = 5 and d = 2.

600 can be written as [tex]\(2^3 \times 3^1 \times 5^2\)[/tex], where 2, 3, and 5 are prime numbers.

To express 600 as the product of prime numbers, we'll use prime factorization.

Prime factorization involves breaking down a number into its prime factors.

Here's how we can do it:

Step 1 :

**Start with the smallest prime number, 2:**

  [tex]\( 600 \div 2 = 300 \)[/tex]

  [tex]\( 300 \div 2 = 150 \)[/tex]

  [tex]\( 150 \div 2 = 75 \)[/tex]

Step 2 :

**Next, continue with the next smallest prime number, 3:**

  [tex]\( 75 \div 3 = 25 \)[/tex]

  [tex]\( 25 \div 5 = 5 \)[/tex]

Step 3 :

**Now, we can't divide further by smaller prime numbers, so we try dividing by the next smallest prime, 5:**

  [tex]\( 5 \)[/tex] is already a prime number.

Step 4 :

**There are no more prime factors to consider, so we stop.**

Now, let's write down the prime factors we obtained:

[tex]\[ 600 = 2 \times 2 \times 2 \times 3 \times 5 \times 5 \][/tex]

So, [tex]\( a = 2 \), \( b = 2 \), \( c = 3 \), and \( d = 5 \).[/tex]

Therefore, we can write:

[tex]\[ 600 = 2 \times 2 \times 2 \times 3 \times 5 \times 5 \][/tex]

Thus, [tex]\( 600 \)[/tex] can be written as [tex]\( 2^3 \times 3^1 \times 5^2 \)[/tex], where [tex]\( 2, 3, \) and \( 5 \)[/tex] are all prime numbers.

How many solutions does the equation have? 3+x=2–3x

Answers

it has two equation because of the equal sign 
zero solution:

3 + x = 2 - 3x
3x + x = -3 + 2

4x = -1

x = -1/4


hope this helps

Add integer help just explain

Answers

Since -6 +6 can be rearranged to 6-6 using the communicative property, we get 6-6 =0 . In addition, -120+(-6) is essentially having -120+ 1*(-6), and 1 times a number is simply that number, so we have -120-6=-126

Analyze each product in the table.

A. Why is the first product less than 3/4?
B. Why is the second product equal to 3/4?
C. Why is the third product greater than 3/4?

Answers

A because you are multiplying 3/4 by 1/2, you make the product smaller than 3/4

B beacue any number multiplied by one remains that number, since you are multiplying 3/4 by 1 it will remaim 3/4

C because the number multiplied by 3/4 is larger than 1 ( 3/2 = 1 1/2) the product will be larger than 3/4

Remove the parentheses from the following expression and combine like terms. 3(ax + b2 - c) + 2

Answers

To remove the parentheses, you just distribute. 
So, it will become 3ax + 3b^2 - 3c +2. I don't think there is any like term in this expression. 

Answer:

[tex]3ax+3b^2-3c+2[/tex]

Step-by-step explanation:

We have been given an expression [tex]3(ax+b^2-c)+2[/tex]. We are asked to remove the parenthesis and combine like terms for our given expression.

Using distributive property [tex]a(b+c)=ab+ac[/tex], we will get:

[tex]3*ax+3*b^2-3*c+2[/tex]

[tex]3ax+3b^2-3c+2[/tex]

We can see that our given expression don't have like terms, therefore, our expression would be [tex]3ax+3b^2-3c+2[/tex].

 need help with this

Answers

(450-210)/4+50=110

 hope this helps

$70. Because first he had $450 then he spends $210 (450-210= 240) which he is left with $240
After that he divided the money (240/4=60) which gives him $60, then he distributed 3 (60-30=20 or 60/3=20).
he then finds $50 on the road (50+20=70) which he now has $70.


The answer is $70

Liem is 6 feet 2 inches, Eli is 5 feet 9 inches, Faith is 6 feet, and Simon is 5 feet 4 inches. In yards, what is the total of their heights?

Answers

I believe 7.75 yards

From examples 9 and​ 10, what is the connection between function notation to evaluate a function at certain values and ordered pair solutions of the​ function?

Answers

what are examples 9 and 10?

Function notation and ordered pair solutions of a function are closely connected. Function notation is a way to represent a function by its name and its input value, while an ordered pair solution of a function is a pair of numbers (x, y) such that y is the output of the function when x is the input.

To evaluate a function using function notation, we simply substitute the input value into the function's expression. For example, if the function is f(x) = x^2, then to evaluate f(2), we would substitute 2 into the function's expression:

f(2) = 2^2 = 4

This means that the ordered pair solution (2, 4) is a solution of the function f(x) = x^2.

In general, any ordered pair solution of a function can be evaluated using function notation. For example, if the function is g(x) = 2x + 1, and the ordered pair solution is (3, 7), then we can evaluate g(3) as follows:

g(3) = 2(3) + 1 = 6 + 1 = 7

This confirms that the ordered pair solution (3, 7) is a solution of the function g(x) = 2x + 1.

Conversely, any function value can be represented as an ordered pair solution of the function. For example, if the function is h(x) = x^3, and the function value is 8, then we can represent this as the ordered pair solution (2, 8), since h(2) = 8.

In general, any function value can be represented as an ordered pair solution of the function by writing the input value as the first coordinate and the function value as the second coordinate.

Therefore, function notation and ordered pair solutions of a function are closely connected. Function notation is a way to represent a function and its input value, while an ordered pair solution of a function is a pair of numbers (x, y) such that y is the output of the function when x is the input. Any function value can be evaluated using function notation, and any ordered pair solution of a function can be represented as a function value.

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The following question may be like this:

What is the connection between function notation to evaluate a function at certain values and ordered pair solutions of the​ function?

What is 378×6 using place value with regrouping

Answers

Hello! To solve this problem, you can regroup this by multiplying the bottom digit by top digit. 6 * 8 is 48. From the 8 and carry your 4. 6 * 7 is 42 plus 4 is 46. Drop the 6 and carry your four. 6 * 3 is 18 plus 4 is 22. When combined, the product is 2,268. The product of 378 * 6 using place value with regrouping is 2,268.

The number of people contacted at each level of a phone tree can be represented by f(x) = 3x, where x represents the level.

What is x when f(x) = 27?

Answers

Answer:

Option B is correct

x= 3, At level 3, 27  number of people contacted

Step-by-step explanation:

As per the given statement:

The number of people contacted at each level of a phone tree can be represented by:

[tex]f(x) = 3^x[/tex]

where, x represents the level.

We have to find the value of x when f(x) = 27.

⇒27 = 3^x

We can write 27 as:

[tex]27 = 3 \times 3 \times 3 = 3^3[/tex]

then;

[tex]3^3 = 3^x[/tex]

on comparing we have;

3 = x

or

x = 3

Therefore, the value of x is, 3.

Out of 25 students in mrs. Green class 19 have a pet what percent of students in mrs. Green class don't have a pet

Answers

25 is our base, so, we need to find out what 19 out of 25 is what percentage. Let's just start with something a little small, like 30%
(We can experiment with different percentages using our trusty calculator)

30% of 25 = 7.5

We are way off, we need to bring it a bit higher if it is to reach 19. Let's try 67%

67% of 25 = 16.75

Not quite but close, lets try something a bit higher, like 76%.

76% of 25 = 19

So, 19 out of 25 is 76% all we need to do now is subtract that from 100 to get the remaining percentage.

100 - 76 = 24


24% of the students don't have a pet. :D
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For what value(s) of x is g continuous? g(x) = 0 if x is rational 4x if x is irrational x is in the set of real numbers x = 4 x = −4 x = 0 none of these

Answers

when you move the x to the other side it should be easier to solve for the irrational question.

Final answer:

The function g(x), being different for rational and irrational numbers, is nowhere continuous on the set of real numbers because it cannot satisfy the condition for continuity at any point.

Explanation:

We are asked to determine for what values of x the function g(x) is continuous. The function is defined to be 0 if x is rational, and 4x if x is irrational, over the set of real numbers. First, let's understand a key concept: for a function to be continuous at a point, the limit of the function as it approaches the point from either direction must be equal to the function's value at that point. In the case of g(x), the function takes the value of 0 for all rational numbers, but instantly changes to 4x for irrational numbers which are densely populated around every rational number.

Since the value of g(x) for rationals (0) is different from the nearby values for irrationals (which would be non-zero and depend on x), g(x) does not have a limit that equals its value at rational points and thus cannot be continuous at any rational number. Moreover, at irrational values of x, we cannot have continuity either, as any neighborhood around an irrational number contains rational numbers where g(x) would suddenly jump to 0, disrupting the limit process once again.

Therefore, the function g(x) is nowhere continuous on the set of real numbers since it cannot satisfy the condition for continuity at any point. Hence, the correct answer to the given question is 'none of these'.

Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train A heading towards station A, and train B heading towards station B. Train A reaches station A after 212 h. Train B reaches station B after 4 h. Station A and Station B are 585 mi apart. What is the rate of the trains?

Answers

recall your d  = rt, distance = rate * time

so, keeping in mind that both trains are going at the same speed, say speed of "r" mph, after 212 hours A arrived at station A and after 4 hours, B arrived at station B.

now, the distance covered by train A is say "d", we know both stations are 585 miles apart, so, if train A covered "d" miles in those 212 hours, then train B covered the slack from 585 and d, that is "585 - d".

[tex]\bf \begin{array}{lccclll} &\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\ &------&------&------\\ \textit{Train A}&d&r&212\\ \textit{Train B}&585 - d&r&4 \end{array} \\\\\\ \begin{cases} \boxed{d}=212r\\ 585-d=4r\\ ----------\\ 585-\boxed{212r}=4r \end{cases} \\\\\\ 585=216r\implies \cfrac{585}{216}=r\implies \cfrac{65}{24}=r\implies \stackrel{mph}{2\frac{17}{24}}=r[/tex]

I just had the same question on a test and the answer was 90 MPH. Hope this helps somebody!

What number represents the most accurate estimation of 65+77

Answers

140 would be the answer. This is because the real answer is 142 you round down to get the estimated answer
the answer is 142. that's the answer.

Lisa's coffee shop makes a blend that is a mixture of two types of coffee type A coffee cost Lisa $4.50 per pound and type B coffee cost $5.50 per pound. This month's blend uses three times as many pounds of type B coffee as type A, for a total cost of $634.50. How many pounds of type a coffee were used?

Answers

141 type a coffees 2326.50 type b coffees

The number of pounds of coffee used is 30 pounds.

Given data:

Let x be the number of pounds of type A coffee used.

Since the blend uses three times as many pounds of type B coffee as type A, the number of pounds of type B coffee used is 3x.

The cost of type A coffee is $4.50 per pound, so the cost of x pounds of type A coffee is 4.50x dollars.

The cost of type B coffee is $5.50 per pound, so the cost of 3x pounds of type B coffee is 5.50 * 3x = 16.50x dollars.

The total cost of the blend is $634.50, so the equation is:

4.50x + 16.50x = 634.50

Combine like terms:

21x = 634.50

On solving for x:

x = 634.50 / 21

x = 30

Hence, 30 pounds of type A coffee were used in the blend.

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given: f(x)=4x^2-5
find: f(5)=

Answers

This question is basically asking you to plug in 5 as x:

f(x) = 4x^2 - 5
f(5) = 4(5)^2 - 5
f(5) = 4(25) - 5
f(5) = 100 - 5
f(5) = 95

Hope this helps!

which values are equivalent to the fraction below 3^6/3^8

Answers

[tex] \frac{3^{6}}{3^{8}} = 3^{6-8} = 3^{-2} = \frac{1}{ 3^{2} } = \frac{1}{9} [/tex]

Which expression results when the change of base formula is applied to log4(x+2) ?

Answers

The change of base formula is the wanted/current.

So it would be log(x+2)/log4.

The answer is the first one.

Answer:

Option A : [tex]\frac{log(x+2)}{log(4)}[/tex]

Step-by-step explanation:

Write the expression when the change of base formula is applied to log4(x+2

Given [tex]log_4(x+2)[/tex]

USe change of base formula

[tex]log_b(a)= \frac{log(a)}{log(b)}[/tex]

WE apply change of base formula for the given log

the base of log becomes the denominator .

Numerator becomes the x+2

[tex]log_4(x+2)= \frac{log(x+2)}{log(4)}[/tex]

option A is the correct answer

How much greater is 98×50 than 97×50 with actual calculating it

Answers

98 is greater than 97 so 98x50 is greater than 97x50

Pre Calc question please help!

Answers

see attached picture for answer:

The total area of this shape is 44 square inches. The area of the triangle is 20 square inches. Write and solve an equation to find the area of the rectangle

Answers

44-20=20 square inches

Answer:

The equation is:  x + 20 = 44

The area of the rectangle is 24 inches.

Step-by-step explanation:

The total area of the shape is 44 square inches.

The area of the triangle is 20 square inches.

We need to find the area of the rectangle.

Total area = Area of the triangle + Area of the rectangle.

Let "x" be the area of the rectangle.

So the equation is

44 = 20 + x

This can be written as x + 20 = 44

Now let's find the value fo x.

Subtract 20 from both sides, we get

x + 20 - 20 = 44 - 20

x = 24 square inches.

Therefore, the area of the rectangle is 24 inches.

IT TAKES YOU 15 MINUTES TO BIKE 5 MILES. HOW LONG DOES IT TAKE YOU TO BIKE 1 MILE

Answers

It would take 3 minutes to bike 1 mile
15 minutes : 5 miles
15/5 minutes : 5/5 miles .... divide both parts by 5
3 minutes : 1 mile

Answer: 3 minutes

How are the numbers 579 and 597 different

Answers

The 79 and 97 are flipped. 597 is a greater value than 579.

597 is a greater value than 579.

What is the number pattern?

A number pattern is a pattern in a series of numbers that represents the common relationship between the numbers.

Rounding some number to a specific value is making its value simpler mostly done for better readability or accessibility.

Rounding to some place keeps it accurate on the left side of that place but rounded or sort of like trimmed from the right in terms of exact digits.

We have to find How are the numbers 579 and 597 different to each other.

As we can see that the last two digit of the numbers 79 and 97 are flipped.

We know that 97 is greater than 79.

Therefore, 597 is a greater value than 579.

Learn more about a number pattern:

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think about a real world example of where a wall meets the floor and where the same wall meets the ceiling. which term describes the edge of the floor and the edge of the ceiling?

A. Parallel line segments
B. Perpendicular line segments
C. Right angle
D. Acute angle

Answers

the answer for your question would be answer c right angle 
The right angle is the answer
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