Guided Practice


Suppose y varies inversely with x. Write an equation for the inverse variation.


y = 6 when x = 1/3.


A.
y = 2x


B.
xy= 1/18


C.
xy = 2

Answer:

no 36x is not a solution the answer is 36/9=4

Step-by-step explanation:

you plug in 36 for x and then divide by 9

Answer:

12% of 2500 is 300

Step-by-step explanation:

[tex]\frac{12}{100} = \frac{300}{y}[/tex]

12 × y = 100 × 300

12y = 30000

12y ÷ 12 = 30000 ÷ 12

y = 2500

Here is a formula for most fraction problems.

Answer:

0.2 ; 0.3 ; 0.1 ; 2

Step-by-step explanation:

X 0 1 2 3 4

P(X) 0.1 0.2 0.4 0.2 0,1

a) Find the probability of 1 tire with low air pressure P (1) :

From probability distribution table Given :

P(1) = 0.2

b) Find the probability of more than 2 tires having low air pressure P (more than 2) =

P(x > 2) = p(3) + p(4)

P(x > 2) = 0.2 + 0.1 = 0.3

c) P (all 4 tires)

From the table :

P(x = 4) = 0.1

d) Compute the expected number of tires with low air pressure.

E(X) = Σx * p(x)

E(x) = (0*0.1) + (1*0.2) + (2*0.4) + (3*0.2) + (4*0.1) = 2

Answer:

Step-by-step explanation:

y = 3*x  + 4

y = 3*x -   7

Each one of the above equations is the equation for a straight line.

The solution for such a system is the point P ( x₀ , y₀ ) which coordinates belong to both straight lines. According to this, there is only one solution for that system ( only one point of intersection). The intersection of a pair of straight lines either can occur or not depending on the slope of the lines, if they have the same slope they are parallel, then they did not touch each other ever. How can m,  be identified in the straight line equation??,   just by looking at the coefficient of x.  

The two equations have slope 3 they are parallel then there is not a solution ( there is not a common point to both equations)

Answer:

Step-by-step explanation:

Here is a system of linear equations: y = 3x + 4 y = 3x - 7

Answer:

B

Step-by-step explanation:

Answer:

x∈(-∞,5)

Step-by-step explanation:

x < 3+2

x<5

x∈(-∞,5)

hope i helped plz mark me brainlest

Answer:

4.777

Step-by-step explanation:

Circumference of a Circle = 2πr

To solve for the radius = Circumference ÷ 2π

Answer = 30 ÷ (2 ×3.14)

Radius = 4.777

Answer:

yellow circle = 43.96 ft

purple circle = 28.26 ft

Step-by-step explanation:

yellow circle = πd = (3.14)(14) = 43.96 ft

purple circle = πd = (3.14)(9) = 28.26 ft

Answer:

the answer is 45 . so circle 4

Answer:

(4) y = 45

Step-by-step explanation:

[tex]\frac{y}{5} - 2 = 7\\\frac{y}{5} = 7 + 2\\\frac{y}{5} = 9\\y = 9 (5)\\y =45[/tex]

Answer: 252

Step-by-step explanation: multiply the base times width times height (6)(6)(7) and you get the volume

Answer:

oh hello.

Step-by-step explanation:

Answer:

[tex]pq(3r + 2)[/tex]

Step-by-step explanation:

[tex]pqr + rpq + qrp + 2pq \\ 3pqr + 2pq \\ pq(3r + 2)[/tex]

Hope this helps you

Can I have the brainliest please?

Answer:

By tangent property,

2y+11= 7y-9

2y-7y = -9 -11

-5y = -20

y= 4

Answer: A -(+8 1/4)

Step-by-step explanation: opposite of of a positive is a negative so if you have the number being a positive being timesd by a -1 which makes it -8 1/2 as the opposite,

Hoped this helped I’m not so good at explaining thought.

9514 1404 393

Answer:

  x = 25; ∠3 = ∠6 = 60°

Step-by-step explanation:

Angles 3 and 6 are alternate interior angles, so are congruent.

  2x +10 = 3x -15

  25 = x . . . . . . . . . . . add 15-2x

  2x +10 = 2(25) +10 = 60

The measures of angles 3 and 6 are 60°.

Answer:

Why watch during a test...

Step-by-step explanation:

You were watching and expect us to just answer this question for you?

Answer:

y=2x-8

Step-by-step explanation:

y=Mx+k

Plug in(3,-2)(6,4)

3m+k=-2

6m+k=4

First function multiply by 2,we got:

6m+2k=-4

6m+k=4

k=-8

Y=Mx-8

Plug in any points that is in the question, I use(6,4)

4=6m-8

m=2

Y=2x-8

Answer:

y = 2x - 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (3, - 2) and (x₂, y₂ ) = (6, 4)

m = [tex]\frac{4+2}{6-3}[/tex] = [tex]\frac{6}{3}[/tex] = 2, then

y = 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (6, 4 ), then

4 = 12 + c ⇒ c = 4 - 12 = - 8

y = 2x - 8 ← equation of line

Answer:

i dont know

Step-by-step explanation:

sorry

Answer:

x = 13

Step-by-step explanation:

Looking at the angle labeled, this is a 90-45-45 right isosceles triangle. As a result, x (the side indicated) is also 13, like the labeled side.

The number 2 or 6 would be rolled 200 times.

Important information:

Number cube has six numbers 1, 2, 3, 4, 5, 6. So, the probability of getting either 2 or a 6 is:

[tex]P(2\cup 6)=\dfrac{2}{6}[/tex]

[tex]P(2\cup 6)=\dfrac{1}{3}[/tex]

The expected value of getting a 2 or a 6 would be rolled is:

[tex]E(2\cup 6)=600\times P[/tex]

[tex]E(2\cup 6)=600\times \dfrac{1}{3}[/tex]

[tex]E(2\cup 6)=200[/tex]

Therefore, the number 2 or 6 would be rolled 200 times.

Find out more about 'Expected value' here:

https://brainly.com/question/1213954

Answer:

nako ni gwapa ko

thankyouuuuu

Answer:

4/7

Step-by-step explanation:

Answer:

IV has the greatest value mean

Step-by-step explanation:

I) Mean is -3

II) Mean  is 0

iii) Mean is .3

IV) Mean is 1

Answer:

D would be the right answer

Answer:

Hello There!!

Step-by-step explanation:

The answer is t+1 simplified as you collect like terms so 2t-t=t and there is +1 left so you make an expression and write t+1.

hope this helps,have a great day!!

~Pinky~

Answer:

2t - t + 1 = t + 1

Step-by-step explanation:

When simplifying an expression, you need to combine all the like-terms. In this case, 2t and -t are the same terms, so add the two together and you'll get that 2t - t + 1 = t + 1.

The answer to your question is 61.

I might have calculated it wrong, so if so sorry:(

Below is how you insert a picture