its given that x varies directly with y square and x=3 and y=3.Find the value of x when y=45

Answers

Answer 1

Step-by-step explanation:

x = ky², where k is a real constant.

When x = 3, y = 3.

=> 3 = 9k, k = 1/3.

Therefore x = y²/3.

When y = 45, x = 45²/3 = 675.


Related Questions

How can exponential growth be used to make predictions?

Answers

It tells you the rate so that way you can predict how much it will grow by

what is this equation -3 +9 +-3

Answers

Answer:

3

Step-by-step explanation:

Answer is 3
Step by step
-3+9+-3
-3+9-3
9-6
=3

PLEASE! 10 POINTS! For what number A does the equation 3Ax - 24 = 5x - 9 + x have no solutions for x?

Answers

Answer:

3Ax-6x = 15

3x(A-2)=15

If A were 2, the left side of the equation would be 0 and it wouldn't equal 15 no matter what the value of x is. So A is 2

Which expression is equivalent to 2^2divided by 2/2^4

Answers

Answer: 32

Step-by-step explanation:

The expression that is equivalent to 2^2 divided by 2/2^4 would be calculated as:

= 2^2 ÷ 2/2^4

= 4 ÷ 2/16

= 4 ÷ 1/8

= 4 × 8

= 32

The expression would be equal to 32 based on the above calculation

Solve for X

-2(5x-5.5) + 8= -9x+2-(-5)

Answers

Answer:

x = 12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Equality PropertiesCombining Like Terms

Step-by-step explanation:

Step 1: Define

-2(5x - 5.5) + 8 = -9x + 2 - (-5)

Step 2: Solve for x

Distribute:                              -10x + 11 + 8 = -9x + 2 + 5Combine like terms:              -10x + 19 = -9x + 7Add 10x to both sides:          19 = x + 7Subtract 7 on both sides:     12 = xRewrite:                                  x = 12

I really need help with this question.
Write the equation of the line that pass through the points below. Write your answer in Point-Slope Form or Slope-Intercept Form. Do NOT use any spaces in your answer.


(2, 17), (4, 7)


Equation:

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the points

(2, 17)(4, 7)

Finding the slope between (2, 17), (4, 7)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(2,\:17\right),\:\left(x_2,\:y_2\right)=\left(4,\:7\right)[/tex]

[tex]m=\frac{7-17}{4-2}[/tex]

[tex]m=-5[/tex]

We know the Point-Slope Form of the line equation is

[tex]y-y_1=m\left(x-x_1\right)[/tex]

Here:

m is the slope(x₁, y₁) is the point

substituting the values m = -5 and the point (2, 17) in the Point-Slope Form

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y - 17 = -5 (x-2)[/tex]

Thus, the answer Point-Slope Form is

[tex]y - 17 = -5 (x-2)[/tex]

It can be further simplified to write into the Slope-Intercept Form

[tex]y - 17 = -5 (x-2)[/tex]

y-17 = -5x+10

y = -5x+10+17

y = -5x+27

Thus, the answer in the Slope-Intercept Form (y=mx+b)

y = -5x+27         ∵Slope-Intercept Form → y=mx+b

What is half of 2+2 First answer gets Brainliest ​

Answers

Answer:

Half is 2

Step-by-step explanation:

Which instruments belong to the brass family?

Answers

Trumpet, trombone, tuba,

Answer:

Baritone/Euphonium

Trumpet

Tuba

Trombone

Good luck!!

If tan 0 = -5, find the cot 0

Answers

Answer:

Step-by-step explanation:

cot(theta) = 1 / tan(theta)

cot(theta) = 1 / -5

cot(theta) = - 0.2

Isaac works as a cook at a restaurant. He started this week with 800 potatoes. On Monday, he used 380 potatoes. On Tuesday, he used 270 potatoes. How many potatoes were left at the end of Tuesday?

Answers

Answer:

The number of Potatoes remaining is = 150

Step-by-step explanation:

From the information given above,

On first day of the week (Sunday),

Total potato = 800

The number used include:

Monday = 380

Tuesday = 270

Total potato used = Monday + Tuesday

= 380 + 270 = 650

Remaining Potato = 800 - 650 = 150

If (x-2,6)=(4,y+2)then the value of x=_____and y=____

Answers

x=6 , y = 4

Step-by-step explanation:

( x-2,6)=(4,Y+2)

this means; (x-2) &( 4) stands for" x "axis.

and( 6 )& (y+2) stands for y axis.

So, we can say( x-2)=X1 & (4)=X2 , (6)=Y1 & (y+2)=Y2

then; to Solve The Equation we use The Formula: X1=X2 for "X" And Y1=Y2 for "Y".

Solution: for "X" ; X1=X2

x-2= 4

x=4+2

x=6

For "Y" ; Y1=Y2

6 = y+2

y=6-2

y=4

finally check ; ( (x-2),6) = (4,(y+2) )

(6-2),6 = (4,(4+2) )

( (4),6) = (4,(6) )

(4,6) = (4,6)

so, X1 =X2 ; 4 = 4

Y1 = Y2 ; 6 = 6

x/5 - g = a for x

how can i find x?

Answers

Answer:

X = 5a+5g

Step-by-step explanation:

Adding g on both sides gives:

X/5 = a+g

Now dividing 5 on both sides gives us the value of x which is:

X = 5(a+g)

Hence X=5(a+g) or X=5a+5g( multiplying by 5 gives us 5a and 5g)

Find the measure of QS.

S9T 10 R 21 F 4x+5 Q

A. 35 B, 20 C. 27 D. 29​

Answers

Answer:

C. 27

Step-by-step explanation:

((4x + 5) + 10)*10 = (21 + 9)*9 (two secants intersecting)

(4x + 5 + 10)*10 = (30)*9

(4x + 15)*10 = 270

40x + 150 = 270

40x = 270 - 150 (subtraction property of equality)

40x = 120

Divide both sides by 40

40x/40 = 120/40

x = 3

✔️QS = (4x + 5) + 10

Plug in the value of x

QS = 4(3) + 5 + 10

QS = 12 + 5 + 10

QS = 27

Find the area of the regular polygon. Round to the nearest tenth.

Answers

Answer:

A polygon is a very big catagory. For example, a triangle has three sides, while a quadrilateral has four sides.

A triangle would be, A=h*w/2 (h being hight, and w being width)

A quadrilateral would be, A=h*w

1.Encuentra la ecuación de la circunferencia que tiene como ecuación ordinaria (x-4)² + (y+5)²= 25 2- encuentra la ecuación general de la circunferencia que tiene como ecuación ordinaria (x+1)² + (y+9)²=49

Answers

Responder:

1) x² + y²-8x + 10y + 16 = 0

2) x² + y² + x + 18y + 33 = 0

Explicación paso a paso:

A partir de la pregunta, debemos expresar la ecuación en la forma estándar de un círculo expresado como;

x² + y² + 2gx + 2fy + c = 0 donde;

(-g, -f) es el centro.

1) Para la ecuación (x-4) ² + (y + 5) ² = 25

Expande el paréntesis;

(x-4) ² + (y + 5) ² = 25

x²-8x + 16 + y² + 10x + 25 = 25

x²-8x + 16 + y² + 10y + 25-25 = 0

Recopile términos similares;

x² + y²-8x + 10y + 16 + 0 = 0

x² + y²-8x + 10y + 16 = 0

Por lo tanto, la ecuación requerida es x² + y²-8x + 10y + 16 = 0

2) Para la expresión (x + 1) ² + (y + 9) ² = 49

x² + x + 1 + y² + 18y + 81 = 49

x² + x + 1 + y² + 18y + 81-49 = 0

Recopile términos similares;

x² + y² + x + 18y + 82-49 = 0

x² + y² + x + 18y + 33 = 0

Por tanto, la ecuación requerida es x² + y² + x + 18y + 33 = 0

Which of the following equations is the correct representation of the graph below?

Answers

Where is the graph and where are the choices

Solve the following system of equations:
-2x + y = 1
-4x + y = -1

A: (3, 1)
B: (-1, 3)
C: (-1, -3)
D: (1, 3)

Answers

Answer:

x=1,y=3

correct answer is (1,3)

Step-by-step explanation:

We can quickly eliminate y by subtracting one equation from the other

(-2x+y=1)-(-4x+y=-1)

2x=2

x=1

plug x=1 into equation 1

-2(1)+y=1

y=1+2=3

Which expression could you simplify by multiplying exponents?

Answers

Answer:

So if I multiply those two expressions together, I will get eleven copies

Solve the Equation
–x + 8 + 3x = x – 6
A. x = –18
B. x = –14
C. x = 2
D. x = 4

Answers

Answer:

x= -14

Step-by-step explanation:

-x+3x-x=-8-6

x= -14

-x+8+3x=x-6

the first thing we need to do is move the x's to the left and the numbers to the right

when moving a number from one side to another it's sign is changed

-x+3x-x=-6-8

x=-14

In 1995, the population of a town was 33,500. It is decreasing at a rate of 2.5% per decade.
a. Identify whether the function is a growth or decay function.

b. Write the function, f(n), that expresses the population of the town after (n) decades.

c. What is the population in the year 2025 to the nearest hundred?

Answers

Answer:

See below

Step-by-step explanation:

Initial date = 1995Initial population = 33500Decrease rate = 2.5% per 10 years

a. It is a decay function as number of population is decreasing over time

b. f(n) = 33500*((100 - 2.5)/100)^n = 33500*(0.975)^n

c. In year 2025, n = (2025 - 1995)/10 = 3

f(3) = 33500*(0.975)^3 = 31100 rounded up

what is 1 7/8 + 2/8 ???

Answers

Answer:

The answer is 2.375.

Step-by-step explanation:

17 / 8 = 2.125.

2 / 8 = 0.25.

2.125 + 0.25 = 2.375.

If the gas station is selling 5 bottles of water for $10, what is the unit price of each bottle of water?

Answers

It would be 2$ for one bottle

Answer:

2

Step-by-step explanation:

5 bottles = 10 dollars

divide by 5 to get 1 bottle

now divide 10 by 5 that will be 2

2$ for 1 bottle

what is it??,,,,,,,,,,,,

Answers

Answer:

99,000

Step-by-step explanation:

since 3 times 10 to the power of 3 is 1000 and 10 to the power of 5 is 100000 the answer is 99,000

Answer: 97000 more

Step-by-step explanation:

10*10*10*10*10=100000  10⁵

10*10*10=1000*3=3000    10³

So 100000-3000= 97000 more

Hope this helped!

What is the definition of equation

Answers

A statement that the values of to mathematical expressions are equal
Source- dictionary

Answer: a definition of an equation can be defined as a mathematical statement consisting of an equal symbol between two expressions that have the same value.

Step-by-step explanation:

The distance between two stars is 9.0 x 10 to the power of -3 light years. A light year is equal to
5.88 x 10 to the power of 12 miles. What is the distance, in miles, between the two stars

Answers

Answer:

The distance between the two stars in miles is 5.292 * 10^10 miles

Step-by-step explanation:

Here, we want to make a conversion from light year to miles

To make this conversion, we simply are going to multiply the light year by the miles

Mathematically, we have this as;

9 * 10^-3 * 5.88 * 10^12

= 52.92 * 10^9

= 5.292 * 10^10 miles

Find the x-intercept and the y-intercept of the line 2x-5y= -6

Answers

To find y intercept, make x equal zero

2(0)-5y=-6

-5y=-8

y is equal to 8/5

To find x intercept, make y equal zero

2x-5(0)=-6

2x=-1

x is equal to -1/2

Answer:

Step-by-step explanation:

2x - 5y = 6

5y = 2x - 6

y = 2/5x - 6/5

y-intercept is -6/5

x-intercept is when you say that y = 0

and so 6/5 = 2/5x

x = 6/2 = 3

Please! Find the values of x,y and Z

Answers

Answer:

x = 24

y = 10

z = 17

Explanation:

It's long to explain, so heres a picture of how solved each. hope this helps!! :)

Which mathematical statement represents "17 more than a number is 26"?
O 17 > 26
On+17 - 26
017-26
26+n=17

Answers

Answer:

n +17 = 26

Step-by-step explanation:

Let the number be 'n'

17 more than 'n' = n + 17

n + 17 = 26

Answer:

n +17 = 26

Step-by-step explanation:

I got a 100 on the test ed2021

The Langleys spend 40% of their monthly income on rent. If their monthly income is $4,400, how much money do the Langleys spend on rent? Help please.

Answers

100%=$4400

40% $=?

40 ×4400/100

$1760

PLEASE HELP THANK U!

Answers

Answer:

the fist one

Step-by-step explanation:

Hope it helps

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