In a direct variation, y=8 when x=2. Write a direct variation equation that shows the relationship between x and y.

Answer:

the answer would be b

Step-by-step explanation:

the other 2 have negatives and the 3rd option is whole so b

Answer:

Triangle A and B= Acute, Triangle C= Right, and Triangle D= Obtuse

Step-by-step explanation:

Acute= Less than 90 degrees

Right= 90 degrees exactly

Obtuse= More than 90 degrees

You look at the measurements provided and determine your answer.

Answer:

$22 I think?

Step-by-step explanation:

I believe you take $50 and add 10% sales tax to it and your total will be $55 and then subtract 60% from that to get the final price of $22.

Answer:

7 bottles of glue

Step-by-step explanation:

63/9= 7

every time there are 9 sticks, there is one bottle.

Answer:

7 glue bottles

Step-by-step explanation:

Ratio of glue sticks to glue bottles = 9 : 1

Therefore, 9x : 1x

If there are 63 glue sticks in total:

⇒ 9x = 63

⇒ x = 7

Therefore, glue bottles = 1x = 1 × 7 = 7

Answer:

x^2+6x+9

Step-by-step explanation:

(x+3)^2

(x+3)(x+3)

x^2+3x+3x+9

x^2+6x+9

Rate of change: y + 4, or x + 1

Start Value: 0

Equation: y = 4x + 6

Answer:

x=-2

Step-by-step explanation:

[tex]14+5x=3\left(-x+3\right)-11[/tex]

[tex]3\left(-x+3\right)-11[/tex]  ← ( Expand)

[tex]14+5x=-3x-2[/tex]

[tex]14+5x-14=-3x-2-14[/tex] ← ( Subtract 14 from both sides)

[tex]5x=-3x-16[/tex]

[tex]5x+3x=-3x-16+3x[/tex]

[tex]8x=-16[/tex]

[tex]\cfrac{8x}{8}=\cfrac{-16}{8}[/tex]  ← ( Divide both sides by 8)

[tex]x=-2[/tex]

~

Answer:

Step-by-step explanation:

In the question we have given with an equation that is 14 + 5x = 3 ( -x + 3 ) - 11 .

And we are asked to find the value of x.

Solution : -

[tex] \longmapsto \: 14 + 5x = 3( - x + 3) - 11[/tex]

Step 1 : Solving parenthesis on right side :

[tex] \longmapsto \: 14 + 5x = - 3x + 9 - 11[/tex]

On further calculations we get :

[tex] \longmapsto \: 14 + 5x = - 3x - 2[/tex]

Step 2 :

Subtracting 14 from both sides :

[tex] \longmapsto \: \cancel{14} - \cancel{14 }+ 5x = -3x -2 - 14[/tex]

On further calculations we get :

[tex] \longmapsto \: 5x = - 3x - 16[/tex]

Step 3 : Adding 3x on both sides :

[tex] \longmapsto \: 5x + 3x = - \cancel{ 3x} + \cancel{3x} - 16[/tex]

On further calculations we get :

[tex] \longmapsto \: 8x = - 16[/tex]

Step 4 : Dividing by 8 on both sides :

[tex] \longmapsto \: \frac{ \cancel{8}x}{ \cancel{8}} = \cancel {\frac{ - 16}{8} }[/tex]

We get :

[tex] \longmapsto \: \red{\boxed{ \mathfrak{x = - 2}}}[/tex]

We're verifying our answer by substituting value of x in given equation . So ,

Therefore , our value for x is valid .

Answer:

50

Step-by-step explanation:

let x be the no of bicycles to be sold

125x = 4500 + 35x

125x-35x = 4500

90x = 4500

x = 50

to exactly match the expenditure, atleast 50 bikes have to be sold

Answer:

easier to grade and to calculate average

Step-by-step explanation:

Answer:

See below.

Step-by-step explanation:

Area by square = 169

Area by rectangle = 14 x 12 = 168

So more for square hope it helps Alphonsa

Step-by-step explanation:

”. What this means is that there is less than a 5% probability that the results happened just by random chance, and therefore a 95% probability that a results reflects a meaningful pattern in human psychology. We call this statistical significance, and, statistically speaking, this is a pretty high standard

If this means that there is still a 5% chance those results are due to chance. This, combined with publication bias , are two main contributing factors to the reproducibility crisis.

When the results of research investigations affect whether or not they are published, it is known as publication bias.

It alludes to the propensity of academics, journals and other interested parties to publish studies with statistically significant or favourable outcomes while omitting or underreporting those with non-significant or unfavourable outcomes.distorted and incomplete.

Learn more about publication bias here:https://brainly.com/question/25877200

#SPJ3

Answer:

less x is 1 greater x is 1

Step-by-step explanation:

I am the calculator

The question is:  What fractions of the beads are blue or green ?

The answer is:  7/12 of the beads are either blue or green.

Answer:

x = 18.928, 5.0718

Explanation:

x = 4√3 + 12, - 4√3 +12

decimal form:

x = 18.928, 5.0718

Answer:

number 1,2 and 3

hope it will help you.

if it is wrong then sorry

Answer:

Here's the correct answers for your queries.

But the last option is not correct because z° and y° do not collectively form 90° which is the complementary angle. And the values are also provided.

Therefore,

The Correct Answers Are:

√A

√B

√C

But not D.

Answer:

2/3

Step-by-step explanation:

so, you have a circle and if you divide it into 3 equal sections each of those sections take only 1/3 of the circle.

1/3 + 1/3 + 1/3 = 1

if one of the thirds is green then the probability of it landing on another color would be 2/3 being the other two colors.

The mean number of points scored is the average of points scored

The mean number of points scored by Valerie is 7 greater than the mean numbers of points scored by Sophia.

The given parameters are:

Calculate the difference (d) between the mean values

d = 15.5 - 8.5

Evaluate the difference

d = 7

Hence, the mean number of points scored by Valerie is 7 greater than the mean numbers of points scored by Sophia.

In (a), we have:

Mean absolute deviation of both = 2 points

Difference  = 7

Express as products

Difference = 2 * 3.5

Hence, 3.5 is a factor of the difference between the mean

Read more about mean absolute deviation at:

https://brainly.com/question/447169

Answer:

(2x+1)(x+7)

Step-by-step explanation:

Step-by-step explanation:

if I understand correctly, then we are mixing 7 cm³ of liquid A with 125 cm³ of liquid B to a liquid C.

A has a density of 1.42 g/cm³.

B has a density of x g/cm³.

the resulting C has a density of 1.05 g/cm³.

the first thing we see is the quantity of C :

C = A + B = 7 + 125 = 132 cm³

what "comes in" must also "come out" again.

there is no mentioning of a chemical reaction, that might cause a change of volume or mass of the mixture.

so, the whole is exactly the sum of its ingredients.

now about mass and density :

as also the mass (g) of the resulting C must be the same as the sum of the masses of A and B, we multiply the density by the quantity of every liquid to get the mass (g). and that is how we get then the missing density of B :

7×1.42 + 125x = 1.05×(7+125)

9.94 + 125x = 1.05×132 = 138.6

125x = 128.66

x = 1.02928 ≈ 1.03 g/cm³

Answer:

{x,y}={60,35}

Step-by-step explanation:

// Solve equation [2] for the variable  x

 [2]    x = y + 25

// Plug this in for variable  x  in equation [1]

  [1]    (y +25) + y = 95

  [1]    2y = 70

// Solve equation [1] for the variable  y

  [1]    2y = 70

  [1]    y = 35

// By now we know this much :

   x = y+25

   y = 35

// Use the  y  value to solve for  x

   x = (35)+25 = 60

Answer:

x=57

y=38

Step-by-step explanation:

(1): x+y=95

(2): y=2/3x

substitute y=(2/3)x in equation (1):

x+(2/3)x=95

Multiply both sides by 3

3x+2x=285

5x=285

Divide both sides by 5

x=285/5

x=57

substitute x=57 in equation (2):

y=2/3×57=38

hence: x=57 , y=38

Answer:

C. 5 1/5

Step-by-step explanation:

A, B, and D are all 5.5 and C alone is 5.2

Answer:

Step-by-step explanation:

Let's verify each option.

Option A

Option B

Option C

Option D

Looking at the options, we can see that the result of Option A, B, and D are same.

This means that the odd one is Option C.

Answer:

Let the unknown number be x,

equation would be :- 3x - 15 = 36

Answer:

-0.96126 but this isn't rounded so you will need to round yourself

Answer:

The answer is

Step-by-step explanation:

Answer:

x = -11, y = -2

Step-by-step explanation:

There's two equations. Let's say the first number is x, and the second number is y. Then, there is 4y-3 = x, and 2y-x = 7. We plug in 4y-3 for x into the second equation, and we get 2y - (4y-3) = 7. Solving more gets us -2y + 3 = 7. thus, -2y = 4, meaning y = -2. We plug back into the second equation, getting -4 - x = 7. This 11 = -x, or x = -11.

You can fine the area of the figure by width times height

Answer:

Step-by-step explanation:

Mean=((4+10+3+6+9+10+a)/7)=7

=>42+a=49

=>a=7Mean=((4+10+3+6+9+10+a)/7)=7

=>42+a=49

=>a=7

Answer:

a = 7

Step-by-step explanation:

Given:

7 is mean of 10,3,4,a,6,9,10

To Find:

Value of a

Solve:

Mean → [tex]\frac{(4+10+3+6+9+10+a)}{7}=7[/tex]

⇒ 42+a=49

Subtract 42 from both sides

x + 42 - 42 = 49 - 42

Simplify

⇒ a=7  

~Learn with Lenvy~

Answer:

7

Step-by-step explanation:

[tex]f(x) = x^{2} + 6[/tex]

[tex]f(-1) = (-1)^{2} + 6\\f(-1) = 1 + 6\\f(-1) = 7[/tex]