If a(x) = 3x + 1 and b (x) = StartRoot x minus 4 EndRoot, what is the domain of (b circle a) (x)?

Answers

Answer 1

Answer:

The domain is [1,∞)

Step-by-step explanation:

The given functions are:

[tex]a(x)=3x+1[/tex]

and

[tex]b(x) = \sqrt{x - 4} [/tex]

We want to find the domain of

[tex](b\circ a)= \sqrt{3x + 1 - 4} [/tex]

Simplify to get:

[tex](b\circ a)= \sqrt{3x -3} [/tex]

This function is defined when the expression under the radical is greater or equal to zero.

[tex]3x -3 \geqslant 0 \\ x \geqslant 1[/tex]

Answer 2

Answer:

C on Edge 2021

Step-by-step explanation:

Took the test


Related Questions

Translate the following sentence into an equation. The sum of twice a number x and 13 is two less than three times x.

Question 20 options:

a)

2x + 13 = 3x – 2


b)

2(x + 13) + 3x – 2


c)

2x + 13 = 2 – 3x


d)

2x + 13 = 3(x – 2)

Answers

Answer:

2x + 13 = 3x - 2

Step-by-step explanation:

This should be the answer

Answer:

its 2

Step-by-step explanation:

How many groups of 14 are in 28?

Answers

Answer:

there are 2 groups

Step-by-step explanation: 14 x 2 = 28

2. Graph each equation using a table of values.
(a)) y = 3x - 1

Answers

Make an x and y table, and pick any values to plug in for x in the equation.

I will use the numbers from -2 to 2

Now plug in the values you picked for x into the equation to find its y-value

x = -2

y = 3x - 1   Plug in -2 for x

y = 3(-2) - 1

y = -6 - 1

y = -7

x = -1

y = 3x - 1

y = 3(-1) - 1

y = -3 - 1

y = -4                

Do the same for the rest of the numbers, and graph each point and draw a line connecting them.

A triangle with a height of 12
inches has an area of 42 square
inches. How long is the base of
the triangle? (need help) need it asap​

Answers

The area of a triangle is 1/2*base*height

So make your equation: 1/2*b*12=42

6*b=42

b=7

So the base is 7 inches long

Hope that helped!

Morse code is a way to transmit text using a series of dots or dashes. The Morse Code for "Add" is shown. What fraction of the shapes are dots in the Morse code for "Add"

Answers

Add in Morse code is :

.—..-..

There are 8 total symbols, 5 of them are dots.

The fraction would be 5/8 are dots.

Answer:

[tex]\frac{5}{8}[/tex]

Step-by-step explanation:

The Morse Code for Add is:

.__.._..

There are 5 dots and 3 dashes, so there are 8 figures in total. The fraction is 5 divided by the total number of symbols, which is 8. So the answer is [tex]\frac{5}{8}[/tex]

PLEASE HURRY!!! THANK YOU
1. There were 88 birds in the tree and then b of the birds flew away. Write an expression that shows how many birds are in the tree now.

2. Brice had $73 and then he earned d more dollars. Write an expression that shows how much money he has now.

3. Kurt's car gets 23 miles to a gallon of gasoline. He filled up his car's gas tank with g gallons. Write an expression that shows how far Kurt can drive on a tank of gasoline.

Answers

1. Answer: 88 - b
Explanation: there are 88 birds and then some of flying away. We know b is just a substitute for an amount of birds so it’s 88 - b

2. Answer: 73 + d
Explanation: he is earning d, amount of dollars, so you have to add the amount of dollars, d, to your original amount, 73

3: Answer: 23 x g
Explanation: We have 23 miles. If the car goes 23 miles to a gallon and we have g gallons then we would multiply to find how far he can drive.

56∙9÷14∙ 1/3
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help

Answers

Answer:

Result = 12

Step-by-step explanation:

Fractions

Fractions are the general expression for rational numbers, defined as

[tex]\displaystyle \frac{a}{b}, \ b\neq 0[/tex]

Where a and b are integer numbers. Some operations with fractions have special rules than those with integers. The product of two or more fractions is

[tex]\displaystyle \frac{x}{y}\cdot \frac{w}{z}\cdot \frac{r}{s}=\frac{xwr}{yzs}[/tex]

We'll use that rule to operate the numbers given in the question:

[tex]\displaystyle 56\cdot \frac{9}{14}\cdot \frac{1}{3}=\frac{504}{42}[/tex]

The fraction can be simplified to an integer by dividing it

[tex]\displaystyle \frac{504}{42}=12[/tex]

Answer:The Answer is 12.

Step-by-step explanation:

When going through a step by step problem you always  wanna go from the left to right.(Unless you have parentheses)

56*9=504

504/14=36

36*1/3=12

There for, you answer is 12.

Hope this helped you. Remember Stay Positive!

6v+13b=377
4v+9b=259

Answers

Answer:

v = 13

b = 23

Step-by-step explanation:

To solve this system of equations, we can negate one equation and add it to other to cancel out one variable.

Looking at v and b, the coefficients are 6, 4 and 13, 9, respectively.

It would be easier to use the LCM of 6 and 4

[tex]E_1 : 6v + 13b = 377\\E_2: 4v + 9b = 259\\\\4E_1 + (- 6)E_2:\\24v + 52b = 1508\\-24v - 54b=-1554\\\\0v -2b = -46\\-2b = -46\\b = 23\\\\4v + 9(23) = 259\\4v + 207 = 259\\4v = 52\\v = 13\\\\6(13) + 13(23)\\78 + 299\\377[/tex]

Help please I really need it

Answers

Answer:

X-Intercept is -45. (Answer would be (-45,0))

Step-by-step explanation:

You can use Desmos which is a graphing calculator to figure out the answer. Plug the equation into Desmos and it will show you a line and where the x-intercept is. And boom, you got your answer.

What is the prime factorization of 40?
2 times 5
2 times 20
2 times 2 times 2 times 5
2 times 2 times 4 times 5

Answers

Answer:

C.

Step-by-step explanation:

2 times 2 times 2 times 5 = 40

The prime factorization of 40 is 2 times 2 times 2 times 5, which can be written as 2^3 * 5. So, option C, "2 times 2 times 2 times 5," is the correct prime factorization of 40.

The prime factorization of the number 40 is 2^3 * 5. To arrive at this factorization, we break down 40 into its prime factors. We start by dividing 40 by the smallest prime number, 2. Since 40 is even, it can be divided by 2 evenly, resulting in 20. We continue this process until we can no longer divide by 2, which leaves us with 20. Now, we try to divide 20 by the next smallest prime, which is also 2. This division gives us 10. Once again, we divide by 2, and we are left with 5. Since 5 is a prime number, we cannot further divide it. Therefore, we have prime factorized 40 as 2 * 2 * 2 * 5, which can be expressed as 2^3 * 5, where the exponent 3 indicates that we have three 2s multiplied together, and the 5 is the prime factor on its own.

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use the fact that 2 1/2 divided by 1/8 equals 20 to find 2 1/2 divided by 5/8.

Answers

Answer:

The value of the expression is 4.

Step-by-step explanation:

Consider the provided information.

We have given that:

[tex]\dfrac{2\dfrac{1}{2} }{\dfrac{1}{8} } =20[/tex]

Now we need to find the value of:

[tex]\dfrac{2\dfrac{1}{2} }{\dfrac{5}{8} } =?[/tex]

Consider the provided fact:

[tex]\dfrac{2\dfrac{1}{2} }{\dfrac{1}{8} } =20[/tex]

Multiply [tex]\frac{1}{5}[/tex] both sides.

[tex]\dfrac{1}{5}\times \dfrac{2\dfrac{1}{2} }{\dfrac{1}{8} } =20\times\dfrac{1}{5}[/tex]

[tex]\dfrac{1\times2\dfrac{1}{2} }{5\times\dfrac{1}{8} } =20\times\dfrac{1}{5}[/tex]

[tex]\dfrac{2\dfrac{1}{2} }{\dfrac{5}{8} } =4[/tex]

Hence, the value of the expression is 4.

The graph of which function has a minimum located at (4, –3)?

f(x) = one-halfx2 + 4x – 11
f(x) = –2x2 + 16x – 35
f(x) = one-halfx2 – 4x + 5
f(x) = 2x2 – 16x + 35

Answers

Answer:

f(x) = 1/2x^2 – 4x + 5  (the third option)

Step-by-step explanation:

I looked it up on a graphing calculator.

The quadratic function that has a minimum located at (4, -3) is:

[tex]f(x) = (1/2)*x^2 - 4x + 5[/tex]

Which function has a minimum located at (4, -3)?

All the options are quadratic functions, so we need to find the one with a leading coefficient positive, which also has a vertex at (4, -3).

The 3 ones with positive leading coefficients are:

[tex]f(x) = (1/2)*x^2 + 4x -11[/tex]

[tex]f(x) = (1/2)*x^2 - 4x + 5[/tex]

[tex]f(x) = 2x^2 - 16x + 35[/tex]

The vertex of the first one is at:

[tex]x = -4/(2*1/2) = -4[/tex]

The x-value of the vertex must be x = 4, so we can discard this.

For the second quadratic function the x-value of the vertex is:

[tex]x = -(-4)/(2*1/2) = 4[/tex]

Then the y-value of the vertex is:

[tex]f(4) = (1/2)*4^2 - 4*4 + 5 = -3[/tex]

Then the vertex is at (4, -3), so this is the correct option.

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4 times a number divided by 3 is 5 more than that number divided by 2 what is the value of that number

Answers

Answer:

x=6

Step-by-step explanation:

Let the number be x

Then 4 times a number divided by 3 is 5 more than that number divided by 2 gives the equation:

[tex] \frac{4x}{3} = \frac{x}{2} + 5[/tex]

Multiply through by the LCD, which is 6.

[tex] 6 \times \frac{4x}{3} = 6 \times \frac{x}{2} + 5 \times 6[/tex]

Cancel out to obtain:

[tex] 2 \times 4x =3 \times x + 30[/tex]

[tex]8x = 3x + 30[/tex]

Group similar terms

[tex]8x - 3x = 30[/tex]

Simplify the LHS

[tex]5x = 30[/tex]

Divide both sides by 5 to get:

[tex]x = 6[/tex]

What is 22,119 rounded on o the nearest hundred

Answers

The hundreds numbers are 119.
119 rounded to the nearest hundred is 100.
That means that the answer is 22,100.
Answer is 22,100.

Use the drawing tools to form the correct answers on the graph. Plot the zeros of this function: f(x) = (x – 1)(x – 7).

Answers

The answer is in the graph picture

The zeros of the function f(x) = (x - 1)(x - 7) are 1 and 7

The function is given as:

f(x) = (x - 1)(x - 7)

Set the function to 0.

So, we have:

f(x) = (x - 1)(x - 7) = 0

This gives

(x - 1)(x - 7) = 0

Split

(x - 1) = 0 or (x - 7) = 0

Remove brackets

x - 1 = 0 or x - 7 = 0

Solve for x

x = 1 or x = 7

Hence, the zeros of the function are 1 and 7

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What is 4x4 i need to know

Answers

Answer: 16

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

4x4 is 4 groups of four.

You can visibly show this by doing four lines of four dots.

••••

••••

••••

••••

count those dots, you get 16

A pen in the shape of an isosceles right triangle with legs of length x ft and hypotenuse of length h ft is to be built. If fencing costs $ 4 divided by ft for the legs and $ 16 divided by ft for the​ hypotenuse, write the total cost C of construction as a function of h.

Answers

Answer:

[tex]\frac{8h}{\sqrt{2}} + 16h[/tex]

Step-by-step explanation:

First we need to compute the side length as a function of h

So x be the side length of the right isosceles triangle, in Pythagorean formula we have

[tex]x^2 + x^2 = h^2[/tex]

[tex]2x^2 = h^2[/tex]

[tex]x = \frac{h}{\sqrt{2}}[/tex]

The cost for the legs is

[tex]C_l = 4*2x = \frac{8h}{\sqrt{2}}[/tex]

The cost for the hypotenuse is

[tex]C_h = 16h[/tex]

So the total cost in term of h is

[tex]C = C_l + C_h = \frac{8h}{\sqrt{2}} + 16h[/tex]

The total cost C of construction as a function of h is C =  16 / h +  8√2 / h

The pen is in the shape of an isosceles right angle. This means one of the

angle is 90 degrees and 2 sides of the triangle are equal and the base angles

are equal too.

Using pythagora's theorem

Therefore,

x² + x² = h²

2x² = h²

x² = h² / 2

x = √h²/ √2 = h/√2

cost of the legs = 4 / h/√2 + 4 / h /√2 = 8√2 / h

cost of the hypotenuse = 16 / h

Total cost = 16 / h +  8√2 / h

C =  16 / h +  8√2 / h

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QUESTION 4 of 10: Your restaurant purchases 1,625 bottles of Chablis per year. The annual increase of purchases has been 6%. If this
increase continues for 5 years, what will be your average increase in bottles purchased per year over that time?
a) 110 bottles
b) 190 bottles
c) 260 bottles
d) 400 bottles

Answers

Answer:

A - 110

Step-by-step explanation:

So if it is 6% increase you would times the number by 1.06. So you would do this like 5 times:

1,625 x 1.06 = 1722.5

1722.5 x 1.06 = 1825.85

1825.85 x 1.06 = 1935,401

1935.401 x 1.06 = 2051,52506

2051.52506 x 1.06 = 2174,6165636

Now you have the total number of bottles after 5 years, you would find the increase which is 2174.6165636 - 1,625 ≈ 550. 550 / 5 = 110

A

⭐ Answered by Foxzy0⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

The average increase in bottles purchased per year over that time is c) 110 bottles.

What is percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is generally denoted using the percent sign ''%''.

Now it is given that,

Number of bottles purchased per year, a = 1,625

Percentage increase per year, r = 6% = 0.06

Total time period, n = 5 years

Since, the equation of a exponential growth function is given as,

y = a(1 +r)ⁿ

⇒ y = 1625(1 +0.06)⁵

⇒ y = 1625(1.06)⁵

⇒ y = 1625*1.338

⇒ y = 2,175

Therefore, average increase in bottles purchased per year over that time   = (2175 - 1625) / 5

= 550 / 5

= 110 bottles

Thus, the average increase in bottles purchased per year over that time is c) 110 bottles.

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Lisa purchased a concert ticket on a website. The original price of the ticket was $85. She used a coupon code to receive a 20% discount. The website applied a 10% service fee to the discounted price. Lisa's ticket was less than the original price by what percent?

Answers

Answer:

10%

Step-by-step explanation:

The original price of the ticket was $85 and she had a discount of 20%. Since the website applied a 10% service fee to her discount price, then Lisa'a ticket would be 10% less than the original price.

If you need 100 trucks for every 1500 yards, how many will you need for 1000 yards ?

Answers

The answer would be 66.666 repeating or rounding it up to 70

Find the output, yyy, when the input, xxx, is 555.

y = 5x-3y=5x−3

Answers

The output y is [tex]y=22[/tex]

Explanation:

The expression is [tex]y=5 x-3[/tex]

We need to determine the output y, when the value of input is x is 5.

That is, substituting [tex]x=5[/tex] in [tex]y=5 x-3[/tex], we get,

[tex]y=5(5)-3[/tex]

Multiplying the value within the bracket, we have,

[tex]y=25-3[/tex]

Subtracting the terms, we get,

[tex]y=22[/tex]

Thus, the value of output y is [tex]y=22[/tex]

72% of the students in Math 6th at AZVA are currently passing mastering their lessons. If 324 students are currently mastering their Math lessions, how many students are in Math 6th?

a) Use a percent equation OR set up a proportion that will use to solve the problem.

b) Solve the problem. Show your work.

Answers

Answer:

Step-by-step explanation:

72% of the students in math 6 = 324

let x represent the students in math 6

turn ur percent to a decimal

0.72x = 324

x = 324 / 0.72

x = 450 students <===

Answer:

its 233.28

Step-by-step explanation:

cuz i took a test and this was the right answer

Which is the value of this expression when a = 5 and k = negative 2? (3^2 a^-3)(3 a^-4)^-2

Answers

Answer: C 25/9

Step-by-step explanation:

Identify the x intercept and y intercept of the line 2x-4y=-12

Answers

-12/2 = -6 = x
-12/-4 = 3 = y

The x intercept is -6 and the y intercept is 3

The x-Intercepts of the line 2x - 4y = -12 is -6 and the y-intercept is 3.

To identify the x and y intercepts of the line, we set one variable to zero and solve the equation for the other variable.

For the x-intercept, we set y=0 and solve for x in the equation: 2x - 4(0) = -12, hence x = -6.

For the y-intercept, set x=0 and solve for y in the equation: 2(0) - 4y = -12, hence y = 3.

Therefore, the x-intercept is -6 and the y-intercept is 3

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What is 15x when x=4

Answers

Answer:

60

Step-by-step explanation:

15*4=60

The 15x when x = 5 will be 60.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

For example = 2 + 8 + 9

Subtraction = Minus of any two or more numbers with each other called subtraction.

For example = 4 - 8

Division = divide any two numbers or variable called division.

For example 4/8

Multiplication = to multiply any two or more numbers or variables called multiplication.

For example 5 × 7.

Given,

x = 4

Now,

15x is nothing but we need to multiply 15 with x

So,

15x = 15 × 4

15x = 60

Hence,The 15x when x = 5 will be 60.

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length of a rectangle is 4 more than its breadth.represent in the form equation​

Answers

Let length be x and breadth be y.
x=y+4

Answer:

L = B + 4

Step-by-step explanation:

Let the breadth be B

Let the length be L

But from the question, we were told that the length is 4 more than the breadth. This is expressed as

L = B + 4

Zoe had x dollars on Monday. 

Her sister took $4.50 from Zoe on Tuesday.

Zoe's mother gave her $20 on Wednesday.

Zoe spent half of her money on Thursday.

She had $17.80 left in her pocket.

how much did Zoe have on Monday​

Answers

13.00 I think I don’t know if that correct but that’s what I got
It’s $25.55 as if she took 4.50 from 20 it makes 15.50 and half of that it’s 7.75 plus $17.80 is $25.50

Consider the enlargement of a triangle that has a scale factor of 7.5.
A small triangle has a base of 5 centimeters and height of 2 centimeters. A larger triangle has a base of b and height of a.
Area Original = 1
2
(5)(2) = 5 cm2
What is the area of the enlarged triangle? cm2

Answers

Answer:    ✔ 281.25

Step-by-step explanation:

Answer:

281.25

Step-by-step explanation:

It is correct E d g e n u i t y

Write the Equation of the line in slope intercept form
(0, -3), (7.5,0)

Answers

Answer:

Step-by-step explanation:

First, start off by solving for the slope using this formula:

[tex]\frac{y_{2} -y_{1} }{x_{2}-x_{1} }[/tex]

Then, plug in the values: [tex]\frac{0-(-3)}{7.5-0}[/tex]

Solve the equation: [tex]\frac{3}{7.5}[/tex]

That's your slope.

Then plug in one of the coordinates given in the problem for x and y and solve this equation:

y=[tex]\frac{3}{7.5}[/tex]x+b

Hope that helped!!! :)

Polynomial equation when zeros are -4, -2, 1, 4

Answers

The required poynomial equation is [tex]x^{4}+x^{3}-18x^{2}-16x+32[/tex].

Step-by-step explanation:

Given,

The zeros of the polynomial are - 4, - 2, 1 and 4

To find, the polynomial equation = ?

We know that,

The polynomial equation = (x - A)(x - B)(x - C)(x - D)

= (x + 4)(x + 2)(x - 1)(x - 4)

= [(x + 4)(x - 4)] [(x + 2)(x - 1)]

= ([tex]x^{2}-16[/tex])([tex]x^2-x+2x-2[/tex])

=  ([tex]x^{2}-16[/tex])([tex]x^2+x-2[/tex])

= [tex]x^{4}+x^{3}-2x^{2}-16x^{2}-16x+32[/tex]

= [tex]x^{4}+x^{3}-18x^{2}-16x+32[/tex]

Thus, the required poynomial equation is [tex]x^{4}+x^{3}-18x^{2}-16x+32[/tex].

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