which of the following expression, when evaluated, equals an irrational number ?

Which Of The Following Expression, When Evaluated, Equals An Irrational Number ?

Answers

Answer 1

Answer:

the answer for number 38 is H


Related Questions

Factor completely
4x^2 - 18x - 36

Answers

Answer: 2(2x + 3)(x - 6)

Step-by-step explanation: For any factoring problem you do, your first

task will be to determine if a GCF exists for the original polynomial.

If a GCF does exist, it must be factored out as the first step to the problem.

In the problem you see here, the 3 terms in

the original polynomial have a GCF of 2.

So a 2 must be factored out as your first step.

This leaves you with 2(2x² - 9x - 18).

This does not make your life a whole lot easier however

because you still have a coefficient on the x squared term.

Factoring from here, you get 2(2x + 3)(x - 6).

Answer:

2(x - 6)(2x + 3)

Step-by-step explanation:

There are a few steps to factoring depending on the polynomial.

Step 1. Factor our a common factor if possible.

Every term is divisible by 2, so factor out a 2.

4x^2 - 18x - 36 =

= 2(2x^2 - 9x - 18)

Step 2. We need to factor the quadratic trinomial.

Now we have a quadratic trinomial, in which the x^2 term is not plain x^2, but it has a coefficient of 2.

Our polynomial is of the form ax^2 + bx + c, with "a" not equal to 1.

We have 2x^2 - 9x - 18, so we have a = 2, b = -9, c = -18.

We can try guessing, but instead, I will use the "ac" method.

Step A. Multiply coefficients ac:

ac = 2(-18) = -36

Step B. Now we need two numbers that add to b and multiply to ac.

We need two numbers that add to -9 and multiply to -36.

The numbers are -12 and 3 since (-12)(3) = -36, and -12 + 3 = -9.

We now break up the middle term, -9x, using these two numbers.

= 2(2x^2 - 12x + 3x - 18)

Now we factor by grouping. Factor a common factor out of the first two terms, and factor a common factor out of the last two terms.

= 2[2x(x - 6) + 3(x - 6)]

x - 6 is a common factor inside the brackets, so we factor it out inside the brackets.

= 2[(x - 6)(2x + 3)]

= 2(x - 6)(2x + 3)

f(x)=x -1 g(x)=-4x2 + 4 Find (f o g)(x)​

Answers

Answer:

4x^2 + 3.

Step-by-step explanation:

f o g(x) = f(4x^2 + 4)

= (4x^2 + 4) - 1

= 4x^2 + 3.

haven't been able to solve nor my tutors please help ​

Answers

Answer:

.5,2.5,1.5,3.0

Step-by-step explanation:

Answer:

.5,2.5,1.5,3.0

Step-by-step explanation:

Which fraction is nearest in value

Answers

Answer:

7/22

Step-by-step explanation:

Answer:

it will be B took the test

Step-by-step explanation:

Matter is not created or destroyed:

Answers

this is true! matter can only be transferred but never destroyed

como puedo salir de Brainly

Answers

Answer:

push the x on the top left corner of the tab

Step-by-step explanation:

go to profile-settings-log our

7 < 12 + c < 13


Pls help me show work

Answers

Answer:

−5<c<1

Step-by-step explanation:

Let's solve your inequality step-by-step.

7<12+c<13

7<c+12<13(Simplify all parts of the inequality)

7+−12<c+12+−12<13+−12(Add -12 to all parts)

−5<c<1

Answer:

c∈[-5,1]

Step-by-step explanation:

12+c>7

12+c<13

c>-5

c<1

HELPPPPPPP URGENT AGAIN.!!!! The coordinates of which point are (–3, –6)? point A point B point C point D

Answers

Answer:

Point C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

If B is the midpoint of AC, and AC = 8x-20, find BC

Answers

Answer:

AC=-160

BC is the midpoint of AC meaning half of AC

-160/2=-80

1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.​

Answers

Answer:

N$  612.5

Step by step explaination:

Given,

Principal or'P'=N$2500

Time or'n'=3 years & 6 months or 3.5 years

Rate of profit or 'r'=7% or 7/100

Profit or 'I'=?

_____________________________________

We know,

I=P*n*r

I=2500*3.5*7/100

I=612.5

So,simple interest is N$  612.5.

1/2 (6x +4) + 3x - 1 = 3/4 (12 - 8x) solve

Answers

Answer:

x = 2/3

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask

If you find this answer helpful, mark it Brainleast ;)

Solve each equation 9-4(2x-1)=45

Answers

I think it is done like this but I am not sure.

Simplifying

9 + -4(2x + -1) = 45

Reorder the terms:

9 + -4(-1 + 2x) = 45

9 + (-1 * -4 + 2x * -4) = 45

9 + (4 + -8x) = 45

Combine like terms: 9 + 4 = 13

13 + -8x = 45

Solving

13 + -8x = 45

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-13' to each side of the equation.

13 + -13 + -8x = 45 + -13

Combine like terms: 13 + -13 = 0

0 + -8x = 45 + -13

-8x = 45 + -13

Combine like terms: 45 + -13 = 32

-8x = 32

Divide each side by '-8'.

x = -4

Simplifying

x = -4

The solution to the equation 9 - 4(2x - 1) = 45 is x = -4.

We have,

Distribute the -4 to the terms inside the parentheses:

9 - 4(2x - 1) = 45

9 - 8x + 4 = 45

Combine like terms:

13 - 8x = 45

Move the constant term to the other side of the equation by subtracting 13 from both sides:

13 - 8x - 13 = 45 - 13

-8x = 32

Divide both sides of the equation by -8 to isolate the variable:

(-8x) / (-8) = 32 / (-8)

x = -4

Therefore,

The solution to the equation 9 - 4(2x - 1) = 45 is x = -4.

Learn more about equations here:

https://brainly.com/question/3118662

#SPJ6

Solve for x: -4 x+5 =-16

Answers

Answer:

Step-by-step explanation:

X=5.25

Out of these numbers which ones are multiples of 7 {−7, −4, 2, 14, 21, 34, 42}

Answers

Answer:

-7, 14, 21, and 42

Step-by-step explanation:

7•-1=-7

7•2=14

7•3=21

7•6=42

What are the coefficients in this expression, 2x+y-3z? Hint, There is 3 coefficient.

Answers

2x , y, -3z are the coefficients
yes the person above me is correct

A water ballon shaped like a sphere is filled with water.The water ballon has a diameter of 3 inches.Which measurement is closest to the volume of water in the water ballon in cubic inches?
A. 14.13 cu. in.
B. 3.53 cu. in.
C. 113.04 cu. in.
D. 3.33 cu. in.

Answers

Answer:

the answer is (A) 14.13 cu. in

Step-by-step explanation:

Is A 14.13

explanation divide by to get radius then use the formula   4/3πr to the third

A bakery sells a dozen bagels for $8.50 and a dozen donuts for $3.99. Write an expression for the
cost of buying b dozen bagels and d dozen donuts.

Answers

Answer:

Total cost = ($8.50b) + ($3.99d)

Step-by-step explanation:

In a bakery, the cost of a dozen bagels = $8.50

and the cost of a dozen donuts = $3.99

1 Dozen = 12 pieces

Let 'b' represents the number of bagels (in dozen) and d represents dozen donuts.

The expression that represents total cost of b dozen bagels and d dozen donuts would be :

Total cost = ($8.50b) + ($3.99d)

Please answer all of them and give steps.

Answers

Answer:

Step-by-step explanation:

1. 12a = 4

    12a/12 = 4/12

    a = 1/3

2.  2c = 7(8/7)

    2c = 8

     c = 4

3. 5h = 6(-3/8)

    5h = -18/8

    5h = -9/4

    20h = -9

      h = -9/20

4. -27m = -4

    m = 4/27

5. -42p = 21

    p = -21/24 = -1/2

6. -7x = 4/7

    x = -4

7. 9n = -40/9

  n = -40

8. 15g = -24

  g = -24/15 = -8/5

9. 4s = 56

   s = 14

10 -5t = -9(2/3)

     -5t = -6

    t = 6/5    

For x > 3, values of the function f(x) = –(x – 3)^2(x + 2) are negative. On this same interval, which statement correctly describes the values of the additive and multiplicative inverses?

A) Both the additive inverse and the multiplicative inverse are positive.
B) Both the additive inverse and the multiplicative inverse are negative.
C) The additive inverse is positive, while the multiplicative inverse is negative.
D) The additive inverse is negative, while the multiplicative inverse is positive.

Answers

the addictive inverse is positive while the multiplicative inverse is negative

Answer:

C) The additive inverse is positive, while the multiplicative inverse is negative.

Step-by-step explanation:

The answer is C on Edge.   (VERIFIED Edge Answer)

Make sure to click "thanks" and rate this answer to let others know this is the correct answer for this question.  

Edge Tip: Answers do not mix or change.

Health officials in Parsnipville are concerned about the recent outbreak of the flu. While scientists are working hard to find a vaccine, the town leaders are turning to you to predict how many people will be sick over time. They hope to find a vaccine in a week. Here are the facts: The epidemic started on Day 0 when Velma and Stanley returned from their exotic jungle vacation with symptoms of the flu. Each day, a sick person infects two additional people. The town of Parsnipville has 3800 citizens.

Answers

Answer:

4372 people would have been sick over time.

Step-by-step explanation:

Since the vaccine would be found in a week, then the over time is a week (7 days). Each day, a sick person infects two additional people.

Number of people infected by Velma can be predicted as follows:

Day 1 - 2, Day 2 - 6, Day 3 - 18, Day 4 - 54, Day 5 - 162, Day 6 - 486, Day 7 - 1458

Number of people infected by Velma = 1458 + 486 + 162 + 54 + 18 + 6 + 2

                                                       = 2186

Also, number of people infected by Stanley can be predicted as follows:

Day 1 - 2, Day 2 - 6, Day 3 - 18, Day 4 - 54, Day 5 - 162, Day 6 - 486, Day 7 - 1458

Number of people infected by Stanley = 1458 + 486 + 162 + 54 + 18 + 6 + 2

                                                       = 2186

Total number of people than can be infected over time = 2186 + 2186

                                                      = 4372

Therefore, the predictable number of infected people over time would be 4372. All citizens of Parsnipville would have been infected before the vaccine is available.

Answer:

Step-by-step explanation:

ASSUMING that only 4 new people get sick a day then we would have the equation 4x+2


The total rainfall for two days was 14.6 mm. The first day's total was 4.5 mm less than the second
day's. How much rain fell on each day in cm?​

Answers

Answer:

first day = 5.05mm = 0.505cm

second day = 9.55mm = 0.955cm

Step-by-step explanation:

Let x represent first day

Let y represent second day

x + y = 14.6

x = y - 4.5

(y - 4.5) + y = 14.6

2y - 4.5 = 14.6

2y = 14.6 + 4.5

2y = 19.1

Divide both sides by coefficient of y which is 2

y = 9.55

Substituting value of y in the equation x + y = 14.6

x + 9.55 = 14.6

x = 14.6 - 9.55

x = 5.05

To convert the values in mm to cm you divide them by 10 since 1cm=10mm

Amy simplifed this complex fraction problem. Negative 2 and one-half divided by five-fourths = Negative five-halves divided by five-fourths = negative five-halves (five-fourths) = negative StartFraction 10 over 8 EndFraction. The quotient is negative five-fourths. What errors did Amy make? Select all that apply.

Answers

Answer:

B, C

Step-by-step explanation:

Amy should have flip the numerator and the denominator of the second fraction before multiplying. She also used addition instead of multiplication for the numerators.

Answer:

B C

Step-by-step explanation:

Evaluate f(x) = 12 for the function f(x) = 5(x - 3) + 17

Answers

Answer:

62

Step-by-step explanation:

12-3=9

5x9=45

45+17=62

Answer:

f(12)= 62

Step-by-step explanation:

Plug 12 into x.

5(12-3)+17

45+17

= 62

what is the value of y in this equation. 3-4y=19

Answers

Steps to solve:

3 - 4y = 19

~Subtract 3 to both sides

-4y = 16

~Divide -4 to both sides

y = -4

Best of Luck!

The cost of a taxi follows the function C(m) =6+.50m where C is the cost and m is the number of miles. Find the cost for: 10 miles and 20 miles

Answers

Answer:

Step-by-step explanation:

c

=

0.6

d

+

1.2

Explanation:

The

3

mile cab ride includes a basic charge as well as the cost for the distance covered.

For a

6

mile trip, the cost is

$

4.80

which means that :

The cost of

3

miles is

$

4.80

$

3.00

=

$

1.80

Therefore the cost for

1

mile is

$

1.80

÷

3

=

$

0.60

The basic fee for hiring the cab is  

$

3.00

$

1.80

=

$

1.20

So the total cost,

c

for a trip of

d

miles will be:

c

=

0.6

d

+

1.2

please help me out, i'm really bad at math

Answers

Answer:

Step-by-step explanation:

3. [tex]\frac{3}{16}=\frac{x}{12}[/tex]

   36 = 16x

   9 = 4x

   x = [tex]\frac{9}{4}[/tex]

4. [tex]\frac{x}{120}=\frac{1}{24}[/tex]

   x = [tex]\frac{120}{24}[/tex]

   x = 5

5. [tex]\frac{a-2}{9}=\frac{2}{3}[/tex]

   3a - 6 = 18

   3a = 24

   a = 8

6. [tex]\frac{b+4}{5}=\frac{7}{4}[/tex]

  4b + 16 = 35

  4b = 19

   b = [tex]\frac{19}{4}[/tex]

7. [tex]\frac{3}{7}=\frac{c+4}{35}[/tex]

  105 = 7c + 28

  7c = 105 - 28

   7c = 77

   c = 11

8. [tex]\frac{2c}{11}=\frac{c-3}{4}[/tex]

   8c = 11c - 33

   11c - 8c = 33

    3c = 33

    c = 11

9. [tex]\frac{7}{k-2}=\frac{5}{8}[/tex]

   56 = 5k - 10

   5k = 66

    k = [tex]\frac{66}{5}[/tex]

12. [tex]\frac{c+1}{c-2}=\frac{4}{7}[/tex]

    7c + 7 = 4c - 8

    7c - 4c = -15

    3c = -15

    c = -5

13. [tex]\frac{v}{4}= \frac{7}{8}[/tex]

    v = [tex]\frac{7}{2}[/tex]

14. [tex]\frac{9}{14}=\frac{3}{n}[/tex]

    9n = 42

    n = [tex]\frac{42}{9}[/tex]

    n = [tex]\frac{14}{3}[/tex]

15. [tex]\frac{b+13}{2}=\frac{-5b}{3}[/tex]

   3b +39 = -10b

   13b = -39

    b = -3

16. [tex]\frac{3b}{b-4}=\frac{3}{7}[/tex]

    21b = 3b - 12

    21b - 3b = -12

    18b = -12

    b = -[tex]\frac{12}{18}[/tex]

    b = [tex]-\frac{2}{3}[/tex]

17. [tex]\frac{x+2}{2x-6}=\frac{3}{8}[/tex]

   8x + 16 = 6x - 18

   8x - 6x = -18 - 16

   2x = -34

    x = -17

Sammy's bedroom has the dimensions 9 feet by 15 feet. If the ceiling is 11 feet, what is the area of the smallest wall?

Answers

Answer:

99

Step-by-step explanation:

11 and 9 are the smallest dimensions. Multiply them and you get 99.

Jackson bought 555 ounces of raisins for \$4$4dollar sign, 4. How much do raisins cost per ounce?

Answers

Answer:

$0.80/oz

Step-by-step explanation:

$4 for 5 ounces

unit cost = price/weight = $4/(5 oz.) = $0.80/oz

Answer:

$00.80 and 1.15 ounces

Step-by-step explanation:

khan said so hope this helps

Solve:
-8(x - 3) + 5x < 9(x + 12)
This is Algebra 1

Answers

Answer:

The answer is x > -7

Step-by-step explanation:

The starting out equation is:

-8(x - 3) + 5x < 9(x + 12)

Once you've got your equation down, you have to remove the parentheses by doing distributive property, and multiplying the -8 by x and -3, [-8(x-3)] and the 9 by x and 12, [9(x + 12)]

Once you do that, you have something like this:

-8x + 24 + 5x < 9x + 108

Then you have to add like terms. That means adding -8x to the positive 5x, and only that since thats the only possible way.

-3x + 24 < 9x + 108

When that's over, you have to move the variable(in my case, 9x) to the left-hand side and change its sign:

-3x -9x + 24 < 108

You see that instead of positive 9x, like it was, it's now negative 9x since we changed its location.

And now do the same to the constant (in my case, 24) to the right-hand side. make sure to reverse its sign aswell, so now it's a negative 24. Now it looks a bit like this:

-3x -9x < 108 -24

Collect like terms (subtracting -9x by -3x, subtracting 108 by -24)

-12x < 84

Now that we isolated the variable, we have to divide it by -12.

KEEP IN MIND!!

When doing work like this, at some point you have to divide the variable by itself, and same thing to the other side. When the variable is a positive number and you're dividing by a positive number, DONT REVERSE THE GREATER/LESS (whatever you have) SIGN!!

When you are dividing by a negative number,

REVERSE THE SIGN!!

I always forgot this and got it wrong back then!!

Back to the lesson, itll look like this when dividing

-12x < 84

------ ------

-12x -12x

Once you divide it, you'll get this

x > -7

I hope this helped!

Someone please help! :(

Answers

Answer:

See below.

Step-by-step explanation:

Start with triangle ABC with side BC lying on line n.

Draw a line through point A parallel to line n, and call it line m.

Angles 1 and 3 are alternate interior angle of parallel lines and are congruent.

Angle 2 and 4 are alternate interior angles of parallel lines and are congruent.

The sum of the measures of angles angles 1, BAC, and 2 is 180 since they lie on a line.

m<1 + m<BAC + m<2 = 180

Now we substitute in the angles we know are congruent by alternate interior angles (written above).

m<3 + m<BAC + m<4 = 180

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