What is the domain of the function f(x) = 2/5√x ?

all real numbers
all real numbers less than 0
all real number less than or equal to 0
all real numbers greater than or equal to 0

Answers

Answer 1

Answer:

D: All real numbers greater than or equal to 0.

Step-by-step explanation:

Answer 2

Answer:

the answer is D

Step-by-step explanation:

just took the test


Related Questions

Select all the zeros of the function f(x) = (x + 10)(x - 5)(x + 1).
- 10
0 - 5
- 1
0 0
1
5
010

Answers

Answer:

-10, 5,-1

Step-by-step explanation:

Set each parentheses to 0

x+10=0 then factor 10 over

x=-10

repeat

x-5=0 to x=5

x+1=0 to x=-1

What is the value of a3 in the sequence?
5, 10, 20, 40, 80...

Answers

i can’t see a3 do you have a picture

Help Help!!!
will Give uh brainliest​

Answers

Answer:

First one: A 4 in 12 chance

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

The coin was flipped 12 times. Out of the 12, Tashi tagye was gotten 4 times. That will be 4/12. Reducing to the lowest tem will get 1/3

3) Ashley is buying a bagel for her friends for lunch. The person in front of her buys a half a dozen bagels (6) for $38.35. How much would she pay for her and 8 friends bagels?

Answers

Answer:

38.35/6 * 8

Step-by-step explanation:

please help me this question​

Answers

Step-by-step explanation:

Please mark me as the brainliest answer

Answer:

x^3 - 7x^2 + 72

Step-by-step explanation:

you just subtract both equations

A machine is used to stamp bottle caps. If 150 bottle caps can be stamped in 30 s, the rate is _______ caps per second.

Answers

Answer:

5 bottle caps each second

Step-by-step explanation:

To find the unit rate, just divide the total number by the total time.

150/30

5

So 5 bottle caps per second

Determine the measures of angles C and D.

Answers

Answer:

c = 40 and d = 76

Step-by-step explanation:

this is going to take me a long time to explain but here we go

so you need to do 180 - 116 and get 64.

then create a equation that is like this 7y + 6 + 4y + 64 = 180

when you solve it you get y = 10

then plug in 10 in for y in 4y. and you get 40 for c

do the same for d and you will get 76

pls mark me brainleist because i didnt waster your time.

Find the perimeter of the figure below, composed of a rectangle and semicircle. Round to the nearest tenths place.

Answers

The perimeter of the given figure is 44.28 units.

Given that, from the figure length of a rectangle = 15 units, width of a rectangle = 4 units and the radius of a semicircle = 2 units.

What is the perimeter of a rectangle?

The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).

Here, perimeter = Perimeter of a rectangle  + Circumference of a semicircle

= 2(15+4) + 2πr/2

= 2×19 + 3.14×2

= 38 + 6.28

= 44.28 units

Therefore, the perimeter of the given figure is 44.28 units.

To learn more about the perimeter of a rectangle visit:

https://brainly.com/question/15287805.

#SPJ2

The equation f equals 9/5 C + 32 relates temperature measured in degrees celsius C to degrees Fahrenheit f Determine whether there is a proportional relationship between C and F explain your reason

Answers

Given:

[tex]F=\dfrac{9}{5}C+32[/tex]

where, F is degree Fahrenheit and C is degree Celsius.

To find:

Whether there is a proportional relationship between C and F.

Solution:

We know that, proportional relations is defined as

[tex]y\propto x[/tex]

[tex]y=kx[/tex]

where, k is constant of proportionality.

So, the line of proportional relationship passes through (0,0) and the equation must be true for (0,0).

If there is a proportional relationship between C and F, then the equation must be true for (0,0).

Substituting F=0 and C=0 in the given equation, we get

[tex]0=\dfrac{9}{5}(0)+32[/tex]

[tex]0=0+32[/tex]

[tex]0=32[/tex]

This statement is false because [tex]0\neq 32[/tex].

It means the line of given equation does not passes through (0,0). So, it s not a proportional relationship.

Hence, there is not a proportional relationship between C and F.

Which expression is equivalent to 16a+24b?

Answers

Answer:

the anwer is 8

Step-by-step explanation:

ur welcome

A certain company reported selling 5,000 toys during the month of January and expects sales to grow at a rate of 7.5% per month until the end of that year. How many toys should the company expect to sell by the end of June of that year?

Answers

Answer:

Answer is 36,220

Step-by-step explanation:

Which property of equality could be used to solve -3x = 348? addition property A.subtraction property B.division property C.multiplication property

Answers

Answer:

Division property

Step-by-step explanation:

you would need to set up your equation. Then divide -3x by -3 to get x alone. then you do 348 divided by -3 to get your answer

-3x=348

-3= -3

x=-116

Layla has a toy car collection of 400 toy cars. She keeps 85% of the toy cars on her wall. How many toy cars does she keep on her wall?

Answers

Answer:

340 cars

Step-by-step explanation:

400*0.85

which is 340

340 cars.

Hope this helps plz hit the crown :D

The total cost, c, of buying Mickey Mouse Ears, where m is amount of ears bought and 1 magnet, is given by the formula c = 22m + 8. Which equation is equivalent to this formula when solved for m? *
1 point
m = (c - 8)/22
m = (c+ 8)/22
m = c/22- 8
m = c

Answers

The first one. First you'd subtract 8 from both sides then divide both sides by 22, so it should be the first answer.

The Daytona 500 is 500 miles long. How long is the race in kilometers? (Use the school conversion sheet)

Answers

Answer:

804.672 km

Step-by-step explanation:

Answer:

It's 804.672 long in kilometers. If needed to be round then about 805 kilometers.

Step-by-step explanation:

You know that:

1 mile = 1.609344 km

So you'll do

500 * 1.609344 = 804.672 km

0.612 as a simplified fraction ​

Answers

Answer:

153/250

Step-by-step explanation:

Answer:

153/250

Step-by-step explanation:

My school is giving me a 1-day break for Thanksgiving and I'm very sad, I wanted at least 2-3 days.

Answers

Answer: If your school is only giving you a day off take memories that one day.

Step-by-step explanation: I'm also very sorry that you didn't get 2-3 days off. I get 2 days off and then the weekend.

Can I get brainlest please?! Also have a great day! (Everyday)

Answer:

i feel the same way :>

Step-by-step explanation:

but what you can do is try to enjoy the day as much as you can!!  :)

4 bracket 3x minus 2 bracket

Answers

Answer:

4[3x-2]

Step-by-step explanation: 12x-8

Hope this helped out

Bob can do a job in 5 hours while Bill can do the same job in 8. How many hours would it take them, working together, to do this job?


plesa heap

Answers

Answer:

It would take either 13 hours, or there is not enough informatino to solve this problem.

Answer:

It would take them 13 hours to work together on the job.

Step-by-step explanation:

Just add 5 hours + 8 hours.

The calorie count of a serving of food can be computed based on its composition of carbohydrate, fat, and protein. The calorie count for a serving of food can be computed using the formula C=4h+9f+4p, where his the

of grams of carbohydrate contained in the serving, is the number of grams of fat contained in the serving, and is the number of grams of protein contained in the serving

A serving of a certain type of but contains 12 grams of fat, 6 grams of carbohydrate, and 5 grams of protein. How many calones are in this serving of ruts?

There are calories [___] in this serving of nuts

Answers

Answer:

152 calories

Step-by-step explanation:

The calories count, composition of carbohydrates, fat and protein are related by;

C = 4h + 9f + 4p

where C, h, f, and p have there given meaning.

Given that the serving of a type of nut contains; f = 12 grams, h = 6 grams and p = 5 grams, then;

C = 4(6) + 9(12) + 4(5)

  = 24 + 108 + 20

  = 152

C = 152 calories

Therefore, there are 152 calories in the serving of the certain type of nut.

What is the slope of a line perpendicular to the line whose equation is x-3y=-18

Answers

Answer: y = 3x + 2

Step-by-step explanation: Convert the equation to slope intercept form to get y = –1/3x + 2.  The old slope is –1/3 and the new slope is 3.  Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

With the new slope, use the slope intercept form and the point to calculate the intercept: y = mx + b or 5 = 3(1) + b, so b = 2

So y = 3x + 2

which expression can be an integer when simplified? i will give so many points and brainliest plz answer!
a.6^-3/6^-1
B. 12^-2/12^2
C. 2^-10 x 2^3
D. 4^7 X 4^-2

Answers

Answer:

D

Step-by-step explanation:

when simplify 4^7, using a calculator, you get 16384. When you simplify 4^-2 , you get 0.0625. When multiplied together, the total is 1024, which is an integer. Answer a, b, and c were not integers, because when multiplied or divided, the answer was less than zero and showed up as a decimal starting with 0.*** . An integer is defined as any whole number, and not a fraction, therefor D is the only correct answer.

Answer:

D fs

Step-by-step explanation:

how do I find the factor of the trinomial
x²+x-20​

Answers

Answer:

(x+5)(x-4)

Step-by-step explanation:

Answer:

(X-4) (X+5)

Step-by-step explanation:

look for 2 numbers that multiply to be -20 and adds up to be 1 which ould be -4 and 5

Sandra can run 5 miles per hour. Write an equation to show the relationship between the amount of hours, h, and the total distance, d. Explain how you got your answer.

Answers

Answer:

d=5h because the number of hours run multiplied by 5 would equal the

total distance.

You are allowed to eat at most 12 pieces of candy. You have already eaten 2. Write an inequality and solve to find how many more piece of candy you can eat.

Answers

Answer:

One of the below.

Step-by-step explanation:

12-2=10      2+x=12    

A dog walker earns $10 plus $3 per dog. What equation represents this model?

Answers

10+3x Or 3x+10.
This is because he gets 10 dollars add it to the 3 he gets per dog. The per dog is X as you don’t know how many dogs he gets

A pitcher can hold 5.2 liters of water. How many 0.4 liter glasses of water can be poured from the pitcher? *

Answers

13 glasses can be poured

Hope I helped

Answer:

13

Step-by-step explanation:

number of glasses = total quantity of water / quantity of one cup

n = 5.2/0.4

n = 52/4 (multiply numerator and denominator with 10)

n = 13

therefore it can be poured into 13 cups

(picture)
for each number on the left,place a check mark under the numbers it is divisible by.​

Answers

45- 3, 5, 9

369- 3, 9

7870- 2, 5, 10

1976- 2, 4,

6003- 3, 9

136- 2, 3, 4

1674- 2, 3, 6, 9

35496- 2, 3, 4, 6, 9

How would i do this??:: Some kinds of fruit juice are only 10% juice. Other brands are 40% juice how much of each kind of juice should be mixed together to form 5 gallons of punch which is 25% juice?

Answers

Answer:

You should mix

2.5 gallons of the first juice with

2.5 gallons of the second juice

Step-by-step explanation:

Step one

Let the first kind of juice be x

Let the second be y

Given x contain 10% juice

and y contains 40% juice

So for the percentage constituent concentration of each the expression is

0.1x+ 0.4y=0.25(5)

0.1x+0.4y=1.25—----------------1

Step two

Also for the volume of the mixture, we are working with 5 gallons hence the expression

x+y=5-------------------------------2

The system of equation for the situation is

0.1x+0.4y=1.25------1

x+y=5-------------------2

From equation 2

x=5-y

Put x=5-y in the equation

0.1(5-y) +0.4y=1.25------1

0.5-0.1y+0.4y=1.25

0.3y=1.25-0.5

0.3y=0.75

Dividing both sides by 0. 3

y=0.75/0.3

y=2.5

x=5-y

x=5-2.5

x=2.5

The mixture should consist of

2.5 gallons of the first juice with

2.5 gallons of the second juice

Benji wrote the expression below to match the description "three less than the quotient of a number and nine" he wrote “3-n/9”explain benji's error

Answers

Benji’s error is that the division should happen BEFORE subtracting 3. 3 should be subtracted from the quotient.

The correct response should be: (n/9)-3
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