50 points!!! If your good at math please help! :)
Y is directly related to X, and Y is 81 when X is 27.

The constant of variation is ___
(there are no answer choices, it's just a type in box so i need an exact answer please! :))

Answers

Answer 1

Answer:

Since x and y are directly related, the equation for their comparison will look like

kx = y

where k is your constant. They give you an instance in the problem where x = 27 and y = 81. Plug this into the above equation and solve for k.

kx = y

k (27) = 81

k = 3

So, the constant of variation is 3.


Related Questions

help help! i’ll give brainly

Answers

Answer: 119

Step-by-step explanation:

we will replace x and y with the given values x=3, y=-2

-3(3^3)(-2)-4(3)(-2)^2+5= -3(27)(-2)-4(12)+5=

=119

In a unit circle, ø= 90°. Identify the terminal point and sin Ø.
A. Terminal point: (0,1); sin ø= 1
B. Terminal point: (1,0); sin ø=0 C. Terminal point: (1, 0); sin ø=1
D. Terminal point: (0,1); sin ø=0

Answers

Answer:

Terminal point: (0, 1); sinФ = 1 A

Step-by-step explanation:

In the unit circle, Ф is the angle between the terminal side and the positive part of the x-xis.

The terminal point on the positive part of the x-axis is (1, 0),which means Ф = 0° or 360° and cosФ = 1, sinФ = 0The terminal point on the positive part of the y-axis is (0, 1),which means Ф = 90° and cosФ = 0, sinФ = 1The terminal point on the negative part of the x-axis is (-1, 0),which means Ф = 180° and cosФ = -1, sinФ = 0The terminal point on the negative part of the y-axis is (0, -1),which means Ф = 270° and cosФ = 0, sinФ = -1

In a unit circle

Ф = 90°

→ By using the 2nd rule above

∴ The terminal point is (0, 1)

sinФ = 1

Terminal point: (0, 1); sinФ = 1

PLEASE HELP!!
just look at the picture

Answers

Answer:

its the  math that solve

Step-by-step explanation:

HELP PLEASE HELP!!!!!

Answers

(i): A triangle where all three sides are equal and the same.

(ii): A triangle where all three sides are unequal in length.

(iii): A triangle that has two sides of equal length.

(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.

(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).

(vi): A triangle where one internal angle is a right angle(90 degrees).

Hope this helps

Answer:

(i): A triangle where all three sides are equal and the same.

(ii): A triangle where all three sides are unequal in length.

(iii): A triangle that has two sides of equal length.

(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.

(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).

(vi): A triangle where one internal angle is a right angle(90 degrees).

Hope this helps

Step-by-step explanation:

I need help on this its really confusing too!
THIS IS DUE TODAYYY!!!!!

Answers

Answer:

D.

Step-by-step explanation:

If I am wrong let me know.

Have a good one.

It is d I got the question right

David joined a new gym. The gym charges a registration fee $75 and a monthly fee of $45. After how many months, m will David have spent $435. Write an equation for the given scenario.

Answers

Answer:

8 months

Step-by-step explanation:

45x8=360+75=435      the 75 dollars is from the registration fee.

PLEASE HELP ASAP
Which function has an inverse that is a function

Answers

Answer:

Options (1) and (3)

Step-by-step explanation:

Option (1)

f(x) = x²+ 3

We can rewrite the function in the equation form as,

y = x² + 3

By interchanging y by x,

x = y² + 3

Now we solve it for y,

y² = x - 3

y = ±√(x - 3)

So the inverse function is,

[tex]f^{-1}(x)=\pm \sqrt{x-3}[/tex]

It's a function.

Option 2

d(x) = -9

Equation form of the function is,

y = -9

Replacing y by x,

x = - 9

Therefore, inverse function will be,

x = -9

Inverse is not a function

Option 3

m(x) = -7x

Equation form of the function,

y = -7x

Interchanging y by x,

x = -7y

Now solve for x,

y = [tex]-\frac{1}{7}x[/tex]

So the inverse function will be,

[tex]m^{-1}(x)=-\frac{1}{7}x[/tex]

Inverse is a function.

Option 4

p(x) = |x|

As this function not a one to one function inverse function is not possible.

Inverse of |x| is not a function.

Find the area of a square with radius of 10

Answers

Squares can’t have radius? Do you mean circle?
This formula, when properly solved, reveals that a side of the square equals half the diameter of the circle times the square root of 2. Because the area of the square is one of its sides multiplied by itself, the area equals the square of the circle's radius times 2.

Solve in PEMDAS:
3 + [2 + 3 X (6 X 3)]

Answers

The answer should be 59

4. Find x. Please help and explain.

Answers

Answer:

x is in top of 5.9

Step-by-step explanation:

hope it helps u find x and if you still cant find it try some glasses

Answer:

11.8

Step-by-step explanation:

because those two 5.9 if you look those two segments put together make a line that is the same length as x so if you add them up it's 11.8

Determine the range of the following graph:

Please answer quick. I only have 2 minutes to answer each question. Please!!!

Answers

Answer: (1, 8]

Step-by-step explanation:

The lowest point is 1, marked with an open circle, thus a soft bracket. The highest point is 8, exactly, and can be marked with a hard bracket.

Write two truths and a lie about the graph shown below (I have no idea what they are trying to ask)

Answers

What they are asking is tell to true things about the graph. And one thing that is untrue about it. For example: Lie, The slope of this graph is 5. Truths, The graph is steep, and has a constant rate of change.

Question below in image

Answers

33 is correct good job

Help with all five questions on the image below, will give BRAINLIEST :D

Answers

Step-by-step explanation:

1. Six families are represented.

2. Four families have at least three children.

3. Range = 15 - 1 = 14

4. Only one family has at most one child

Evaluate 0.1m+8-12n0.1m+8−12n0, point, 1, m, plus, 8, minus, 12, n when m=30m=30m, equals, 30 and n=\dfrac14n=
4
1

n, equals, start fraction, 1, divided by, 4, end fraction.

Answers

9514 1404 393

Answer:

  8

Step-by-step explanation:

Apparently, you want to evaluate ...

  0.1m +8 -12n

for m = 30 and n = 1/4.

Put the numbers where the corresponding variables are and do the arithmetic.

  = 0.1×30 +8 -12×(1/4) = 3 + 8 -3

  = 8

Add (16n2 + n + 1) + (4n2 - 5n - 2).​

Answers

Answer:

20n2-4n-1

Step-by-step explanation:

You combine like terms, so you add 16n2 with 4n2 to get 20n2. Then you add n with -5n to get -4n. Finally, you add 1 with -2 to get -1.

I need help on this and that’s it!

Answers

Answer: 22 mor packages.

Give me brainlyest please.

Step-by-step explanation:

I WILL GIVE YOU BRAINLIST HURRY

Which expression is equivalent to 3(2x+1)−(x−1)
?
A
3x+6
B
5x+2
C
5x
D
5x+4

Answers

Answer:

b

Step-by-step explanation:

3(2x+1)-(x-1)

\ / / /

5x+2

Answer:

fgcgfcgchgcchcgccghccghcgcghgghcgchchchgcgcghchgchg

Step-by-step explanation:

Sharon's brother works at a shoe store and earns a commission. He earns 2.5% of the amount he sells. Last week he sold $900 worth of shoes, how much did he earn in commission?​

Answers

Answer:

her  brother either earns 12.6$  or 22.6$  

Step-by-step explanation:

If any of those answer where correct thanks add me as a brainlist

Given: a//b c//d e//f, m<7=24, and m<20 = 80 what is m<1

Answers

Answer:

m∠1 = 100

Step-by-step explanation:

m∠2 = 80

m∠1 = 180 - 80 = 100

Which line has an equation of y = -5x + 4 in slope-intercept form?

a line passing through the points (1,9) and (3,19)

a line passing through the points (2,-14) and (4,-24)

a line passing through the points (1,1) and (3,11)

a line passing through the points (2,-6) and (4,-16)

Answers

Answer:

its the forth one i got it right

Step-by-step explanation:

I picked the blue one, was I correct?

Answers

Answer:

yes

Step-by-step explanation:

The given formula

[tex]a_{n}[/tex] = 5n + 3 ← is an explicit formula for an arithmetic sequence

Calculate the slope through the points (2, 3) and (2,-6) The slope = _​

Answers

Answer:

m = undef

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (2, 3)

Point (2, -6)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]:                    [tex]m=\frac{-6-3}{2-2}[/tex]Subtract:                              [tex]m=\frac{-9}{0}[/tex]Define:                                 m = undef

Solve the triangle with the law of sines

Answers

Answer:

see below

Step-by-step explanation:

We can use the law of sines

sin 80             sin B

--------------- = -------------

31                       14

Using cross products

14 sin 80 = 31 sin B

14/31  sin 80 = sin B

.984807753 = sin B

Taking the inverse sin of each side

sin ^ -1 ( .444751888) =  B

26.41 = B

The sum of the angles of a triangle is 180

A+B+C = 180

80 + 26.41 + C =180

106.41 + C = 180

C = 73.59

We can use the law of sines to find c

sin 80             sin 73.59

--------------- = -------------

31                       c

c sin 80 = 31 sin 73.59

c =  31 sin 73.59 / sin 80

c = 30.20

AB = 30.20

An oil rig has a height of 74.98 m visible above water and extends 518.16 m below the surface to the sea floor. What is the total height of the oil rig?​
please help i really need help A.S.A.P :). pls help me ​

Answers

Answer:

591.14 m

Step-by-step explanation:

74.98 (above water level) + 518.16 (below water level) = 593.14 m (total height of the oil rig)

Hope this helps :)

Out of 30 girls who tried out for the lacrosse team, 12 were selected. Out of 40 boys who tried out, 16 were selecte. Are the ratios of the number of students on the team to the number of students trying out the same for both boys and girls:? How do you know?

Answers

Answer:

The answer is yes

Step-by-step explanation:

The ratio for both is 2.5

Answer:

Boys:

ratio = 16/40 = 2/5

Girls:

ratio = 12/30 = 2/5

They are the same.

Find the number that belongs in the green box.

Round your answer to the nearest tenth. ​

Answers

Answer:

49.4 degrees

Step-by-step explanation:

SOHCAHTOA

tan x = opposite / adjacent

tan x = 7 / 6

using graphing calculator, you get x = 49.398 round to tenth = 49.4 degrees

please give thanks :)

Which is the correct way to express 489.65 in expanded form?
A
400 + 80 + 9 + 0.06 + 0.05
B
400 + 80 + 9 + 0.6 + 0.05
C 400 + 80 + 9 + 6 + 0.5
D
400 + 80 + 9 + 0.065

Answers

It’s B
Cause if 400+80 is 480+9=489+0.6=489.6+0.05 and the final results it’s 489.65
B the s denwiejdifjfne e finished we

How to divide 7 divided by 7/4

Answers

Answer:

4

Step-by-step explanation:

7÷7/4

in these cases we multiply by the reciprocal

7× 4/7

7 and 7 can be cancelled with each other

the remaing answer = 4

Answer:

1/4

Step-by-step explanation:

First, since the numerator is 7 you want to see how many times you can divide that.

So, you can only divide 7 by 7 1 time so that turns into 1.

Hence, your numerator is now 1 and denominator stays the same so its..

                       

                                                    1/4


anyone know this? i’m to lazy

Answers

Answer:

1215

Step-by-step explanation:

Other Questions
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