Factor completely 3x^2+ 2x -1.
O (3x + 1)(x - 1)
O (3x + 1)(x + 1)
O (3x - 1)(x + 1)
O (3x - 1)(x - 1)

Answer:

0.44

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

The price of the burrito is $3.5 and the price of the taco is $2.5.

Step-by-step explanation:

2x+5y=19.5

5x+2y=22.5

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

5(2x+5y)=5(19.5)

-2(5x+2y)=-2(22.5)

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

10x+25y=97.5

-10x-4y=-45

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

21y=52.5

y=52.5/21=2.5

2x+5(2.5)=19.5

2x+12.5=19.5

2x=19.5-12.5

2x=7

x=7/2=3.5

x=3.5, y=2.5

The price of the burrito is $3.5 and the price of the taco is $2.5.

Answer:

we conclude that:

[tex]\frac{2^{-\frac{4}{3}}}{54^{-\frac{4}{3}}}=81[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{2^{-\frac{4}{3}}}{54^{-\frac{4}{3}}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}\:=\:x^{a-b}[/tex]

[tex]\frac{2^{-\frac{4}{3}}}{54^{-\frac{4}{3}}}=\left(\frac{2}{54}\right)^{-\frac{4}{3}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}[/tex]

         [tex]=\frac{1}{\left(\frac{2}{54}\right)^{\frac{4}{3}}}[/tex]

        [tex]=\left(\frac{1}{27}\right)^{-\frac{4}{3}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}[/tex]

        [tex]=\frac{1}{\frac{1^{\frac{4}{3}}}{27^{\frac{4}{3}}}}[/tex]

         [tex]=\frac{1}{\frac{1^{\frac{4}{3}}}{81}}[/tex]      ∵ [tex]27^{\frac{4}{3}}=81[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{1}{\frac{b}{c}}=\frac{c}{b}[/tex]

         [tex]=\frac{81}{1^{\frac{1}{3}}}[/tex]              

[tex]\mathrm{Apply\:rule}\:1^a=1[/tex]

         [tex]=\frac{81}{1}[/tex]

          [tex]=81[/tex]

Therefore, we conclude that:

[tex]\frac{2^{-\frac{4}{3}}}{54^{-\frac{4}{3}}}=81[/tex]

Answer:

(x^2)*y

Step-by-step explanation:

Answer:

x^2y

Step-by-step explanation:

2x4y4

2x−2y3(−x2)2

=

2x6y4

2x4y3

=

2x2y

2

=x^2y

Answer:

Step-by-step explanation:

50......................................................................

Parallel lines have equal slopes.

Converting the given into slope-intercept form:

Option B is the parallel line with different y-intercept

51.......................................................................

Perpendicular lines have negative reciprocal slopes.

Converting the given into slope-intercept form:

Perpendicular line will have a slope of

The equation will be:

to find b using the given point (-2. 5)

So the line is:

or

Answer:1 2/4

Step-by-step explanation:

Answer:

I think its something like: Money Leftover = 125 - (price of one shirt * 5)

Step-by-step explanation:

just use variables in the place of "price of one shirt" and "Money Leftover".

multiplying the price of one shirt by five since she buys 5 of the same shirt and subtracting that value from her budget will leave you with the amount of money she had left after the purchase.

Answer:

125-5s=money left over (s is the price of one shirt)

Step-by-step explanation: I hope this helps!

Solve- 55+0.50m = 66

          -55                 -55

            0.50m = 11

             0.50      0.50  cross out the 5´s

               m=22

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The function simplifies to ...

  [tex]f(x)=\dfrac{x^2-7x+12}{x-3}=\dfrac{(x-4)(x-3)}{(x-3)}\\\\\boxed{f(x)=x-4 \quad x\ne3}[/tex]

The graph has the appearance of a graph of the straight line y = x-4, but there is a hole where the function is undefined at x=3.

Answer:

There is a 25% markup

Step-by-step explanation:

First find the original cost of each shirt

$2400/ 100 shirts

$24/ shirt

Mark up = ( new price - original price) / original price

               = ( 30-24) / 24

               = 6/24

               = 1/4

                = .25

                 25%

There is a 25% markup

Answer:

percent markup = 25%

Step-by-step explanation:

buys 100 shirts = $2400

buys 1 shirt = $2400/ 100

= $24

sells 1 shirt = $30

percent markup:

=[ ( selling price - bought price) ÷ bought price ] × 100

= [ (30-24) ÷ 24 ] × 100

= [ 6 ÷ 24 ] × 100

= 0.25 × 100

= 25 %

Answer:

im not sure but but try D

Step-by-step explanation:

:|

Step-by-step explanation:

divide,pluss well read

Answer:

7 : 11 is the right answer

Answer:

30.48 centimeters

Step-by-step explanation:

Answer:

8 tickets

Step-by-step explanation:

to find how many raffle tickets Jason can buy,

Divide the prices

24 divided by 3

He can buy 8 tickets

Answer:

single-channel, multi -phase

Step-by-step explanation:

The concept known as '' Queuing'' is not only important in the mathematical aspect alone but it is also useful in economic matters as signifies the abundance of resources that is when we have queues it means the reason for it is that the available resources is not enough.

From the question above we have that there are 3 individual car wash stalls, it is also given that the customers wait in a single line before choosing the next available stall. This means that there is only a single-channel.

Then, we have that from the single line initially, the queues then moves to multi -phase that is to  3 individual car wash stalls.

Answer:

b. 63 minutes

Step-by-step explanation:

Given;

number of times the hash function is applied  = 12

time taken to brute force one application, = 21 minutes

Apply proportion, bearing in mind that 4 available resources should take less time;

1 available resource ------- 21 minutes

4 available resources ------ x

Thus, x  = 21 minutes / 4

When applied  12 times, the time should be [tex]\frac{21 \ minutes}{4} \ \times \ 12 \ = 63 \ minutes \\\\[/tex]

Therefore, the correct option is B, 63 minutes

Answer:

3x³ - 18x² + 26x - 8

Step-by-step explanation:

(x - 4)(3x²- 6x + 2) =

= x*3x² + x*(- 6x) + x*2 + (-4)*3x² + (-4)*(-6x) + (-4)*2

= 3x³ - 6x² + 2x - 12x² + 24x - 8

= 3x³ - 18x² + 26x - 8

Answer:Its B.

Step-by-step explanation:

If you take awa the sales tax it should be B. Sorry if it’s wrong tho.

Answer:

f^ - 1 (x) = x/3 + 1/3​ is not the inverse function of f(x) = 3x + 1

Step-by-step explanation:

F(x) = 3x + 1

Inverse:

x = 3y + 1

3y = x - 1

y = x/3 - 1/3 or f^ - 1 (x) = x/3 - 1/3​

so

f^ - 1 (x) = x/3 + 1/3​ is not the inverse function of f(x) = 3x + 1

9514 1404 393

Answer:

  -7/4 < x < 8

Step-by-step explanation:

The value of y can be determined from the sum of the angles, so you know each of the angles exactly. That means you know the ratio of side lengths exactly, which lets you solve for x exactly.

__

Setting that aside, we observe that angle C is greater than angle A, so side AB will be longer than side BC.

  3x +15 > 4x +7

  8 > x . . . . . . . . . . subtract 3x+7

We also know that the lengths of these sides must be positive. Since BC is the shorter side, we require ...

  4x +7 > 0

  4x > -7

  x > -7/4

So, the allowable values of x are ...

  -7/4 < x < 8

_____

More complete solution

If we read the figure correctly, the sum of angles is ...

  (2y +12) +(4y +12) +(y -18) = 180

  7y +6 = 180

  y = (180 -6)/7 = 24 6/7°

Then (in degrees) ...

  ∠A = 2(24 6/7) +12 = 61 5/7, and ∠C = 4(24 6/7) +12 = 111 3/7

The Law of Sines tells us ...

  AB/sin(C) = BC/sin(A)

  sin(A)(3x +15) = sin(C)(4x+7)

  x(4sin(C) -3sin(A)) = 15sin(A) -7sin(C)

  x = (15sin(A) -7sin(C))/(4sin(C) -3sin(A))

  x ≈ 6.1872652

Answer:

18

Step-by-step explanation:

3/4 of 8 is 6

so

3/4 of 24 is 18

or

8/4= 2

2x3= 6

so

24/4= 6

6x3= 18

Hope that helps!

Answer:

5 to 2

Step-by-step explanation:

you divide both numbers by 2

Answer: 84

Step-by-step explanation:

Question requires finding the 16th term in this sequence:

= -6 + ( n - 1 )(6)

= -6 + ( 16 - 1) (6)

= -6 + (15 * 6)

= 84

The required answer is -2.85.

Hope it helps!

Answer:

-2.85

Step-by-step explanation:

first take l. c. m

(-35-22)/20

and -57/20= -2.85

Answer:

144:9

16

16 ft high

Step-by-step explanation:

Easy...could also be written as 144/9 or 144 to 9

Divide

Same thing

Hope this helps. Have a nice day

sam will climb 60m

Step-by-step explanation:

9514 1404 393

Answer:

  D.  R = {-7, 1, 9, 17}

Step-by-step explanation:

Substitute the given values for x to see what the y-values are.

  f(x) = 4x +9

  f({-4, -2, 0, 2}) = 4{-4, -2, 0, 2} +9 = {-16, -8, 0, 8} +9

  = {-7, 1, 9, 17} . . . . . matches choice D

Answer:

 D.  R = {-7, 1, 9, 17}

Step-by-step explanation:

 D.  R = {-7, 1, 9, 17}