solve pls brainliest

Answer: proportional

Step-by-step explanation: cuz i took the test and i was correct

The given ratios are not proportional.

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality".

The given fractions are 0.2/2.6 and 0.3/3.6

Here, 0.2/2.6 =2/26

= 1/13

Now, 0.3/3.6 =3/36

= 1/12

Therefore, the given ratios are not proportional.

To learn more about the proportional relationship visit:

brainly.com/question/12917806.

#SPJ2

Answer:

y = -6 and x = -3

Step-by-step explanation:

 Data :

Eq 1 : y = 2x

Eq 2 : y = 7x + 15

So

  Take eq 1 and solve for x

  ⇒  x = y/2        eq 3

Put eq 3 in eq 2

 y =7 (y/2) +  15

   y - 7y/2 = 15

    ( 2y-7y )/2 = 15

   -5y/2 = 15

  -5y =30

y = -6

And  put value of y in eq 3 to find x

  x = -6/2

  x =-3

the equations y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions. option B is correct.

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Condition for the parallel lines.

L1,  ax + bx + c = 0

L2, dx + ey + f = 0

If [tex]\rm \dfrac{a}{d} = \dfrac{b}{e} = \dfrac{c}{f}[/tex] then lines have infinitely many solutions.

y = –3x + 4 and 3y = –9x + 12

On comparing we have

a = -3 , b = 1, and c = 4

d = -9 , e = 3, and f = 12

Then their ratio will be

[tex]\rm \dfrac{1}{3} = \dfrac{-3}{-9} = \dfrac{4}{12}\\\\\rm \dfrac{1}{3} = \dfrac{1}{3} = \dfrac{1}{3}[/tex]

Hence  y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions.

Thus the option B is correct.

More about the linear system link is given below.

https://brainly.com/question/20379472

Answer:B

Step-by-step explanation:just took the test

Answer:

False

Step-by-step explanation:

Discrete linear functions wouldn't include all real numbers.

Answer:

5 units

Step-by-step explanation:

To find the distance between two points on a graph, we use the distance formula [tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2[/tex] where [tex]d[/tex] is the distance between points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex].

For this problem, we will identify [tex](x_1,y_1)\rightarrow(-1,5)[/tex] and [tex](x_2,y_2)\rightarrow(2,9)[/tex]:

[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(9-5)^2+(2-(-1))^2}\\\\d=\sqrt{(4)^2+(3)^2}\\\\d=\sqrt{16+9}\\\\d=\sqrt{25}\\\\d=5[/tex]

Therefore, the distance between [tex](-1,5)[/tex] and [tex](2,9)[/tex] is 5 units

Answer:

6 feet

Step-by-step explanation:

1 feet x 6= 6 feet

Answer:3150

Step-by-step explanation:

70% of 10,000 is 7000. 45% of 7000 is 3150

Answer:

D. Three sixteenths

Hope this helps!

Answer:

D. Three-sixteenths

Step-by-step explanation:

So the whole cake is 1/1.

She gives half of it to her mom so now she has 1/2.

She eats 1/4 of the remaining cake. 1/4 of 1/2 is 1/8. 1/2=4/8. Now she has 3/8.

She cuts the rest in half. 3/8 = 6/16. Half of 6/16 is 3/16

Answer:

Step-by-step explanation:

variables are A and N

constants are 16, 30, 50

coefficient are 9, 3, 15 and -10

positive term 15a, negative term -10a

and there's 4 terms

like terms are 3n and 9n

Answer:

The cost of hiring Jerry for 6 hours would be $475.

Step-by-step explanation:

All you really have to do to get this answer is multiply 65 by 6, and then add 75 on to that.

65 x 5 = 390

390 + 75 = 465

Hope I helped!

Answer:

465

Step-by-step explanation:

Cost = ($65 x h) + $75

H= Hours

65 x 6= 390

390+ 75= 465

Answer:

the slope is m=6 and the y -intecept is b=3 or (0,3)

Answer:

44

Step-by-step explanation:

mean = (13+15+12+16+14+X)/6 = 19

70+X=19×6

X=114-70=44

Answer:roughly around 70 yards since a whole foot ball field including the the touch down is about 120 yards I think

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

here diameter = 6 , then r = 6 ÷ 2 = 3 , so

A = π(3)² → C

Answer: 12 m

Step-by-step explanation:he path of a football has been modeled by the equation:

Answer:

∠1=135°

∠2=45°

∠3=45°

∠4=135°

∠5=135°

∠6=45°

∠7=45°

∠8=135°

Step-by-step explanation:

→∠1=∠4[Being vertically opposite angles]

→∠4=135°

→∠1=∠5[Corresponding angles]

→∠5=135°

→∠5=∠8[Being vertically opposite angles]

→∠8=135°

→∠1+∠2=180°[Sum of linear pair]

→∠2=180°-135°

→∠2=45°

→∠2=∠3[Being vertically opposite angles]

→∠3=45°

→∠3=∠6[Alternate angles]

→∠6=45°

→∠6=∠7[Being vertically opposite angles]

→∠7=45°

Answer:

∠1 = 135°

∠2 = 45°

∠3 = 45°

∠4 = 135°

∠5 = 135°

∠6 = 45°

∠7 = 45°

∠8 = 135°

Step-by-step explanation:

Using the Angles on a Straight Line theorem

Angle 1 and 2 are on a straight line, so

∠2 = 180 - ∠1 = 180 - 135 = 45°

Similarly,

∠3 = 180 - ∠1  = 180 - 135 = 45°

∠4 = 180 - ∠3 = 180 - 45 = 135°

Using the Corresponding Angles theorem

As ∠1 = ∠5, then ∠5 = 135°

As ∠2 = ∠6, then ∠6 = 45°

As ∠3 = ∠7, then ∠7 = 45°

As ∠4 = ∠8, then ∠8 = 135°

Answer:

120

Step-by-step explanation:

Given,

Solution A contains 2 parts salt to 8 parts water

Solution B contains 3 parts salt to 5 parts water

Target Mixture contains3 parts salt to 7 parts water:

Expressing the salt concentration in decimal form

Solution A: 2/(2 + 8) = 2/10 = 0.20 salt

Solution B: 3/(3 + 5) = 3/8 = 0.375 salt

Mixed Solution: s/(3 + 7) = 3/10 = 0.30 salt

Since target mixture is 280 quarts

If the amount of 0.375 salt present in mixed solution = x

Then, the amount of 0.20 salt, y = 280 – x

Using a typical mixture equation

0.375x + 0.20(280-x) = 0.30(280)

0.375x + 56 - 0.20x = 84

Subtract 56 from both sides of the equation

0.375x - 0.20x + 56 – 56 = 84 – 56

0.375x - 0.20x = 28

0.175x = 28

Divide both sides of the equation by 0.175

0.175x/0.175 = 28/0.175

x = 160

y = 280 – x

y = 280 – 160

y = 120

Answer:

1.17 , 1.7 , 7.117 , 7.13 , 7.2

this is the arranged order

Answer:

x = 16°    ||   ∠BCA = 57°

explanation:

All the angles lie on a straight line.

A triangles total interior angle is 180°

So we need to find the inner angle of each side and they are:

So with this:

180 - ( 5x + 12 ) + 180 - ( 10x - 37 ) + 180 - ( 9x + 1 ) = 180

180 - 5x - 12 + 180 -10x +37 + 180 -9x-9 = 180

564 - 24x = 180

-24x = 180 - 564

-24x = -384

x = 16°

Then ∠BCA = 180 - ( 10x - 37 )

                   =  180 - ( 10 * 16 - 37)

                    = 57°

Answer:

20

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given equation:

Solve:

Answer is 20.

first off, let's split the triplet into two equations, then from there on we'll do substitution.

[tex]\cfrac{y}{x-z}=\cfrac{x}{y}=\cfrac{x+y}{z}\implies \begin{cases} \cfrac{y}{x-z}=\cfrac{x}{y}\\[2em] \cfrac{x}{y}=\cfrac{x+y}{z} \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{using the 1st equation}}{\cfrac{y}{x-z}=\cfrac{x}{y}\implies }y^2=\underline{x^2-xz} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{using the 2nd equation}}{\cfrac{x}{y}=\cfrac{x+y}{z}\implies }xz=xy+y^2\implies \stackrel{\textit{substituting for }y^2}{xz=xy+(\underline{x^2-xz})}[/tex]

[tex]2xz=xy+x^2\implies 2xz=x(y+x)\implies \cfrac{2xz}{x}=y+x \\\\\\ 2z=y+x\implies 2=\cfrac{y+x}{z}\implies 2=\cfrac{x+y}{z} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{}{ \begin{cases} \cfrac{y}{x-z}=\cfrac{x}{y}\\[2em] \cfrac{x}{y}=\cfrac{x+y}{z} \end{cases}}\implies \begin{cases} \cfrac{y}{x-z}=\cfrac{x}{y}\\[2em] \cfrac{x}{y}=2 \end{cases}\implies \begin{cases} \cfrac{y}{x-z}=2\\[2em] \cfrac{x}{y}=2 \end{cases}[/tex]

that of course, is only true if x + y, or our numerator doesn't turn into 0, if it does then our fraction becomes 0 and our equation goes south.  Keeping in mind that x,y and z are numeric values that correlate like so.

Answer:

A) f'(3) < f'(0) < f'(-2)

Step-by-step explanation:

You don't need to create a graph of the derivative. Remember that the derivative is the slope/rate of change of a function at a certain point!

At f(-2), you can see that the function is increasing around it, which suggests that f'(-2) is positive.

At f(0), you can see that the function doesn't increase nor decrease around it, which suggests that f'(0) is 0 (or no slope!).

At f(3), you can see that the function is decreasing around it, which suggests that f'(3) is negative.

This must mean that f'(3) < f'(0) < f'(-2)

I hope this clears things up, and please ask questions in the comments if you are still confused! I want to help you!

Step-by-step explanation:

we know,

distance = √(x_2 - x_1)² + (y_2 - y_1)²

given points

(6,4) and (0,-5)

according to formula

→ d = √(0 - 6)² + (-5 - 4)²

→ √(-6)² + (-9)²

→ √36 + 81

→ √117 = 10.81 (approx.)

therefore, distance between both the points are 10.81 (approx.).

Hope this helps you !

Answer:

Answers below in explanation!

Step-by-step explanation:

- Figure A has lines horizontally, Figure B has lines vertically.

- Figure A does not have an angle at the top, Figure B does.

- Figure A has sides labeled only on the outer sides. Figure B has sides labeled on outer sides and underneath

Answer:

y=5/4x-1

Step-by-step explanation: