I’m struggling.help please.

Answer:

k = 12

Step-by-step explanation:

The constant of proportionality k is the ratio

k = [tex]\frac{laps}{swimmers}[/tex]

Use any ordered pair from the table to find k

Using number of laps = 240, number of swimmers = 20 , then

k = [tex]\frac{240}{20}[/tex] = 12

I hope it helps you

Answer:

[tex]y = 0 \: .x = \frac{2}{3} y[/tex]

Step-by-step explanation:

[tex] \frac{2 {x}^{2} - 5 }{3xy - 2 {y}^{2} } [/tex]

[tex]3xy - 2 {y}^{2} = 0[/tex]

[tex]y \times (3x - 2y) = 0[/tex]

[tex]y = 0 = 3x - 2y = 0[/tex]

[tex]y = 0 = 3x = 2y[/tex]

[tex]y = 0[/tex]

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

[tex]y = 0. \: x = \frac{2}{3} y[/tex]

Answer:

165/14

Step-by-step explanation:

(7-4) + 17 / -14 + 2 x 5

3 + 17/-14 + 2 x 5

3 - 17/14 + 2 x 5

3 - 17/14 + 10

165/14

Answer:

C(t)=25+2t

C(1.5)=25+2(1.5)=28

$28 for 1.5 minutes rent

A function C(t) represents the cost of renting a canoe for t hours is C(t)=25+2t and the cost for 1.5 minutes will be $28.

A function is defined as the expression that set up the relationship between the dependent variable and independent variable. A function in mathematics from a set X to a set Y allocates exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.

Given that the rental charge is $25 plus $2 for every 20 minutes of rental.

The function formed for the given data will be:-

C(t)=25+2t

At 1.5 minutes the rent will be calculated as below:-

C(1.5)=25+2(1.5)=28

Therefore, the function C(t) represents the cost of renting a canoe for t hours is C(t)=25+2t, and the cost for 1.5 minutes will be $28.

To know more about the function follow

https://brainly.com/question/1942755

#SPJ2

Answer:

A 1600

B 2400 hope it helps

Answer:

89/100. Hope this helped.

Step-by-step explanation:

3√20+2√125 = 3√(4×5) + 2√(5×5×5)

=6√5+10√5

=16√5

This is your answer .

Answer:

Gradient: m = 3

Step-by-step explanation:

m = change in y/change in x

m = [tex]\frac{Y2-Y1}{X2-X1}[/tex]

m = [tex]\frac{9-(-3)}{6-(2)}[/tex]

m = 12/4

m = 3

Step-by-step explanation:

the answer is in picture

the cost price is 50

Answer:

Step-by-step explanation:

Solve for c:

Answer:

Yes, it does. We can check by using the Pythagorean theorem (P.t.).

P.t.: a^2 + b^2 = c^2

a = 6, b = 8, c = 10

6^2 + 8^2 = 10^2

36 + 64 = 100

100 = 100

Brainliest, please!

Answer:

Step by step answer.

Yes

a^2 + b^2 = c^2

8^2 + 6^2 = 10^2

64 + 36 = 100

100 = 100

The Pythagorean Theorem works. C is always assumed to be the hypotenuse because it is the longest line It's position does not matter. If you did the problem like this

6^2 + 10^2 = 8^2

Of course this would not work, but it would also disobey the convention that c is the longest side.

Answer:

[tex]h=\displaystyle \frac{3V}{\pi r^2}+1[/tex]

Step-by-step explanation:

Hi there!

[tex]V=\displaystyle\frac{1}{3} \pi r^2(h-1)[/tex]

Divide both sides by [tex]\displaystyle\frac{1}{3} \pi r^2[/tex]:

[tex]\displaystyle \frac{V}{\displaystyle\frac{1}{3} \pi r^2}=(h-1)[/tex]

[tex]\displaystyle \frac{3V}{\pi r^2}=h-1[/tex]

Add 1 to both sides:

[tex]\displaystyle \frac{3V}{\pi r^2}+1=h[/tex]

I hope this helps!

Hey there! I'm happy to help!

Our goal here is to write the function (equation) that represents what Carlos has graphed. This is a line, so we can use the slope-intercept equation to represent it.

Our slope-intercept equation is y=mx+b, where m is the slope and b is the y-intercept.

If we look at the graph, we see that the the line intersects the y-axis at the point (0,0), also known as the origin, so our y-intercept is 0.

To find our slope, we need to first find two points on the line. Well, we already have (0,0). The next point on the line that seems to have integers is (7,5). This means that from (0,0) our rise is 5 and our run is 7, and since slope is rise over run, that means that our slope is 5/7 (for every one unit we go over, the line goes up 5/7).

Now, we just throw these numbers into the equation.

y=5/7x

or

f(x)=5/7x (if it needs to be in that function format)

Have a wonderful day and keep on learning! :D

Answer:

[tex](a-1)(a^2+a+2)\\[/tex]

Hi,

Step-by-step explanation:

[tex]Remember:\ x^3-y^3=(x-y)(x^2+xy+y^2)\\a^3-1+a-1\\\\=(a-1)(a^2+a+1)+1(a-1)\\\\=(a-1)(a^2+a+2)\\[/tex]

Answer:

have a great day

god bless you

Answer:

see below

Step-by-step explanation:

f(x) = -2/3 (x+1) (x-5)

First find the zeros

0 = -2/3 (x+1) (x-5)

Using the zero product property

x+1 =0   x-5=0

x= -1    x = 5

Then find the y intercept

y = -2/3 (0+1)(0-5)

  - 2/3 (1)(-5)

  +10/3

We know that this is a parabola that opens downward

Simplify

Graph attached

[tex]\large\bf{\red{ \implies}} \tt \: \cancel\frac{15}{9} \\ [/tex]

[tex]\large\bf{\red{ \implies}} \tt \: \frac{5}{3} \\ [/tex]

Decimal Form - 1.6667

Lets form a inequality

[tex]\\ \sf\longmapsto x>-4.5[/tex]

[tex]\\ \sf\longmapsto x<-0.5[/tex]

Now

[tex]\\ \sf\longmapsto -4.5\lt x\lt -0.5[/tex]

Hence

[tex]\\ \sf\longmapsto x=\left\{-4.4,-4.3\dots -0.7,-0.6\right\}[/tex]

Answer:

8a - b + 6c

Step-by-step explanation:

Just combine like terms.

5a + 3a = 8a

-2b + b = -b

7c - c = 6c

Answer:

Step-by-step explanation:

Well in London The time is like 12 and stops there it don't go to 13:00 like New York does so basically I'm saying London as a regular time and New York has the Military Time!

Answer:

A. 4/23+3/√9

C. 4/23×3/√9

[tex].[/tex]

Answer:

The answer is -a

Step-by-step explanation:

from equation,

[tex]a+b=0\\=>b=0-a[/tex]

∴[tex]b=-a[/tex]

Therefore, -a is equal to b

hope you have understood this....

pls mark my answer as the brainliest

Answer:

the domains are x axis or intercepts and range is y axis or intercepts

Answer:

D

Step-by-step explanation:

edge

Finds how much is needed for 1 costume by dividing 6 3/4 by 3

6 3/4 /3 = 2 1/4 yards per costume.

Multiply yards per costume by 7:

2 1/4 x 7 = 15 3/4 yards total needed.

[tex]\\ \rm\hookrightarrow 6\dfrac{3}{4}yards=3costumes[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{27}{4}\div 3[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{27}{4}\times \dfrac{1}{3}[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{27}{7}yards[/tex]

[tex]\\ \rm\hookrightarrow \dfrac{27}{7}\times 7[/tex]

[tex]\\ \rm\hookrightarrow 27yards[/tex]