Combine the following expressions. 2√k + √k - 3√k

Answer:

a

Step-by-step explanation:

Answer:

2,000

Step-by-step explanation:

take 10×200 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

6

Step-by-step explanation:

72/24=3

3*2=6

Step-by-step explanation:

diameter = 20 inches

radius = diameter ÷ 2

radius = 20 ÷ 2

= 10 inches

circumference = 2π × radius

= 2 × 3.14 × 10

= 62.8 inches

Answer:

30 cents per orange

Step-by-step explanation:

$2.40 ÷ 8 = 30 cents

Answer:

30 Cents per orange

Step-by-step explanation:

so 2.40/8 to x/1

it will then be 2.40x1 and 8x.

we divide 2.40 by 8 to get x by itself.

Then x = .3 so 30 cents. <3

Answer:

Scalene Traingle

Step-by-step explanation:

Because a scalene triangle has no congruent sides, but can be a right angle (90 degree)!

Answer:

x = 6

Step-by-step explanation:

Step 1: Cross multiply.

[tex]\frac{x}{2x+4} = \frac{3}{8} \\x*(8)=3*(2x+4)\\8x=6x+12[/tex]

Step 2: Subtract 6x from both sides.

[tex]8x-6x=6x+12-6x\\2x=12[/tex]

Step 3: Divide both sides by 2.

[tex]\frac{2x}{2} =\frac{12}{2}[/tex]

hope it becomes helpful to you ☺️☺️

good luck

Answer:

24000 is ur awnser

Step-by-step explanation:

Answer:

24,000

Step-by-step explanation:

Answer:

3/7 is equal to 12/28

Step-by-step explanation:

n equals 12 because 28 divided by 7 is 4. multiply 3 by 4 and get 12.

Answer:

n=12

Step-by-step explanation:

Because 28 divided by 7= 4 so you have to do the same on the top and 3*4=12

Answer:

I think your trying to ask what the answer is and it would be B.

Step-by-step explanation:

Put in the X column: 0 1 2

Put in the Y column: 0 5 10

If it asks for how you know, put that it’s basically multiplying by 5s.

The answer is A.

Step-by-step explanation:

ARP means Annual Percentage Rate. Annual means yearly and there are 12 months in a year so divide 19.8 by 12 and you get 1.65.

Answer: 57

Step-by-step explanation:

The value of the angle ∠r is equal to 56.63°.

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry. The trigonometric functions, also known as a circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

Given that in ΔPQR, p = 8.5 cm, q = 1.7 cm and r=7.7 cm. The value of angle ∠r will be calculated as,

r² = p² + q² -2pqcos(r)

(7.7)² = (8.5)² + (1.7)² - 2 x 8.5 x 1.7cos(r)

59.29 -75.14 = -28.9cos(r)

cos(r) = 15.85 / 28.9

cos(r) = 0.55

r = cos⁻¹(0.55)

r = 56.63°

To know more about trigonometry follow

https://brainly.com/question/16911370

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Let's solve your system by substitution.

y=2x+1;y=4x−1

Step: Solve y=2x+1for y:

y=2x+1

Step: Substitute2x+1foryiny=4x−1:

y=4x−1

2x+1=4x−1

2x+1+−4x=4x−1+−4x(Add -4x to both sides)

−2x+1=−1

−2x+1+−1=−1+−1(Add -1 to both sides)

−2x=−2

−2x

−2

=

−2

−2

(Divide both sides by -2)

x=1

Step: Substitute1forxiny=2x+1:

y=2x+1

y=(2)(1)+1

y=3(Simplify both sides of the equation)

Answer:

x=1 and y=3

PLZ FOLLOW ME

Answer: 7.9%

Step-by-step explanation:

trust me

Answer:

5x + 3y = 95

8x + 6y = 170

x = 10 ; y = 15

Step-by-step explanation:

Let :

x = pack of juice boxes

y = pack of water bottles

Pack of juice box = $5

Pack of water bottles = $3

Amount of money spent :

5x + 3y = $95

Number of drinks purchased :

8x + 6y = 170

Using both equations ;

5x + 3y = 95 - - - (1)

8x + 6y = 170 - - - (2)

Multiply (1) by 6 and (2) by 3

30x + 18y = 570

24x + 18y = 510

Subtract :

6x = 60

x = 60 / 6

x = 10

Put x = 10 in (1)

5(10) + 3y = 95

50 + 3y = 95

3y = 95 - 50

3y = 45

y = 45 / 3

y = 15

x = 10 ; y = 15

Answer:

33m

Step-by-step explanation:

If the ratio of the new length to the old length is 11:8 (simplified ratio)

I like to set up a proportion, like this,

x/24 = 11/8, where x is the undefined new length

x*8 = 24*11 (cross multiply)

8x = 264 (multiply)

x = 33 (divide 8 by both sides)

The new length is 33m.

Hope I helped! Good Luck!

Answer:

33m

Step-by-step explanation:

The 8 part of the ratio refers to the old length 24m

Divide by 8 to find the value of one part of the ratio

24m ÷ 8 = 3m ← value of 1 part of the ratio, then

11 parts = 11 × 3 = 33m

Thus

33m : 24m = 11 : 8

Answer:

-10

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-7)/(0-(-1))

m=-10/(0+1)

m=-10/1

m=-10

Answer:

The slope is -10.

Step-by-step explanation:

Goal

Given

Step 1

[tex] \large \boxed{m = \frac{y_2-y_1}{x_2-x_1} }[/tex]

From the given coordinate points, substitute the values in the formula.

[tex]m = \frac{7 - ( - 3)}{ - 1 - 0} \\ m = \frac{7 + 3}{ - 1} \longrightarrow \frac{10}{ -1} \\ m = - 10[/tex]

Therefore, the value of m or slope is -10.

Answer:

5/13 = 0.384615 (repeating)

Step-by-step explanation:

Hope that helps!

Answer:

f(x) = -7(x-5)^2 +5

f(-1) = -7(-1-5)^2 +5

f(-1) = -7(-6)^2+5

f(-1) = -7(36)+5

f(-1) = -252+5

f(-1) = -247

Let me know if this helps!

Answer:

-247

Step-by-step explanation:

f(-1) = -7((-1)-5)^2

Step-by-step explanation:

There are a number of reasons why some students decide not to go to school. Some of them may be associated with family and psychological problems such as anxiety and depression, which should be investigated by trained professionals at the school if there is any suspicion of these symptoms.

There is also the possibility that students who have decided not to go to school have been victims of bullying and aggression at school, which causes fear of retaliation and psychological trauma that negatively impact the person's life.

It is important that schools provide psychological support and an active policy that combats bullying and is pro-integration of students and diversity.

Answer:

0N

Step-by-step explanation:

Force = mass * acceleration

Given

Mass = 5kg

velocity = 19m/s

IF the velocity of the body is constant, then the acceleration will be zero.

Force = 5 * 0

Force = 0N

Hence the net  force on the rock is 0N

Answer:

100

Step-by-step explanation:

hopes this helps

Answer:

100

Step-by-step explanation:

Answer:

C. [tex]x=\frac{3}{2} , y=\frac{1}{2}[/tex]

Step-by-step explanation:

Both of the equations would equal to one another since they're both solving for "y".

Steps:                                     Plug in x into one of the equation:

[tex]-x+2=3x-4[/tex]                       [tex]y=3(\frac{3}{2} )-4[/tex]                  

[tex]-3x+4[/tex]  [tex]-3x+4[/tex]                         [tex]=\frac{9}{2} -4[/tex]

------------------------                        [tex]=4.5-4[/tex]    

[tex]-4x+6=0[/tex]                               [tex]y=0.5 or \frac{1}{2}[/tex]

       [tex]-6[/tex]   [tex]-6[/tex]

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

[tex]\frac{-4x}{-4} =\frac{-6}{-4}[/tex]

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

[tex]x=\frac{3}{2} , y=\frac{1}{2}[/tex]

Answer:

19. 8 years

Step-by-step explanation:

Using the exponential growth function :

A = Pe^rt

A = final amount or growth unit

P = initial or present growth unit

Rate, r = growth rate

80 = 20e^0.07t

80/20 = e^0.07t

4 = e^0.07t

Take In of both sides

In(4) = 0.07t

1.3862943 = 0.07t

t = 19.804205

t = 19. 8 years