The heights of Russian dolls are in the ratio 6 : 8 : 9. In a set of dolls, the height of the middle doll is 12 cm. What is the height of the smallest doll

Answer:

P(9,2) = 72

Step-by-step explanation:

Answer:

1. B

2. C

3. D

4. A

Step-by-step explanation:

Answer:

t = 28

Step-by-step explanation:

56 = 2t

t = 56 / 2

t = 28

Hope that helps!

Answer: t= 28

Step-by-step explanation:

Isolate t by dividing both sides by 2.

Answer:

4.734 * 10^-5 miles

Step-by-step explanation:

Given that:

Distance between House to movie theater = 3 inches

Expressing the distance in miles :

Converting inch to miles

1 inch = 1.578 * 10^-5 miles

3 inches = (3 * 1.578*10^-5)

3 inches = 4.734 * 10^-5 miles

Answer:

i not sure sorry ..........

Answer:

radius is 13 cm❣️❣️❤️

Answer:

60. its an equalateral, they all add up to 180

Step-by-step explanation:

Answer: Each pair of gloves costs $15 and each pair of hat costs $10.

Step-by-step explanation:

Let x = Cost per pair of gloves

y= Cost per hat.

As per given, we have

[tex]5x+2y=95 \ \ \ \ (i)\\4x+y=70\ \ \ \ \ (ii)[/tex]

Multiply (ii) by 2 , we get

[tex]8x+2y=140\ \ \ \ (iv)[/tex]

Eliminate (i) from (iv), we get

[tex]3x=45\\x=15[/tex]

Put this in (ii), we get

[tex]4(15)+y=70\\60+y=70\\y=10[/tex]

Hence, each pair of gloves costs $15 and each pair of hat costs $10.

Answer:

y=-2x+10

Step-by-step explanation:

Answer: r = 1.69 inches

              h = 2.15 inches

Step-by-step explanation: Volume of a solid is the amount of space contained within a solid.

Volume of a cone is directly proportional to radius and height:

[tex]V=\frac{1}{3}\pi r^{2}h[/tex]

They want the cones to hold the same volume of 9 cubic inches.

If height is 3:

[tex]9=\frac{1}{3}\pi r^{2}3[/tex]

[tex]\pi r^{2}=9[/tex]

[tex]r^{2}=2.864[/tex]

r = 1.69 inches

When height is 3, radius is 1.69 inches for a cone to have 9 cubic inches of volume.

If radius is 2:

[tex]9=\frac{1}{3}\pi (2)^{2}h[/tex]

[tex]h=\frac{9(3)}{4 \pi}[/tex]

h = 2.15 inches

If radius is 2 inches, height of the cone is 2.15 inches.

Answer:

D I dont know if im right though

Step-by-step explanation:

The system of equations are same and graphs of the equations are the same line because the equations have the same slope and same y-intercept. The system has infinitely many solutions.

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

The first equation is -3x + 3y = 12  be equation (1)  

y = x + 4   be equation (2)

Adding 3x on both sides , we get

3y = 3x + 12

Divide by 3 on both sides , we get

y = x + 4   be equation (3)

So , the equation ( 2 ) is same as equation ( 3 )

Now , the slope of the equation is m = 1 and the y intercept is b = 4

Hence , the equations have infinite solutions

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Answer:

ok

1st one x=245°

2nd one x= 250

Step-by-step explanation:

hope its correct

hope u find it helpful

Answer:

x = 245 and x = 20

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5 , then

sum = 180° × 3 = 540°

Sum the interior angles and equate to 540

25 + 112 + 100 + 58 + x = 540

295 + x = 540 ( subtract 295 from both sides )

x = 245

---------------------------------------------------------------

5x + 2 + 3x + 5 + 8x + 8 + 4x + 15 + 5x + 10 = 540

25x + 40 = 540 ( subtract 40 from both sides )

25x = 500 ( divide both sides by 25 )

x = 20

Answer:

need the points sorry

Step-by-step explanation:

jesus

Answer:(60 + 12)(60 – 12)

Step-by-step explanation:

Answer:

-3/4

Step-by-step explanation:

y2-y1/x2-x1 =

-1-2/4-0=

-3/4

Answer:

Part A- an= an-1-5.9

Part B- -18.5,-24.4

Step-by-step explanation:

Answer:

The answer is

E=(1, 3)

F=(2,4)

Step-by-step explanation:

When E is midpoint of AB

Then

[tex]e = ( \frac{4 + ( - 2)}{2} . \frac{5 + 1}{2} ) \\ = (1.3)[/tex]

By this way we can find F

[tex]f = ( \frac{4 + 0}{2} . \frac{5 + 3}{2} ) \\ = (2.4)[/tex]

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Answer: The length of the hypotenuse (c) is 5

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

a & b are the legs (b is the base)

c = hypotenuse

a = 4

b = 3

a² + b² = c²

4² + 3² = c²

16 + 9 = c²

25 = c²

√c² = √25

c = 5

Hi there!

missing value: -9

1.Multiply the two negative:

[tex]-2[/tex]·[tex]-4=-8[/tex]

2.Find the value of 72*-8:

[tex]72*-8=-9[/tex]

Therefore, the missing value is -9.

Answer:

Answer: No it isn't an equation. Not yet at least.

Step-by-step explanation:

Yes it might well do, but if it does, it needs something on the other side of wherever you put the equal sign.

6x - 7 is all you have so far and you have no idea what comes next. As it is, what you wrote is an algebraic expression.

Answer:

Slope and a point that is not an intercept

Let

x ----> the time in hours

y ----> the area (in square meters) left to paint

we know that

Hiro paint at a rate of 8 square meters per hour

The rate is equal to the slope of the linear equation

we have the point (3, 28) ---> After 3 hours of painting, he had 28 square meters left to paint.

therefore

we have

Slope and a point that is not an intercept

Step-by-step explanation:

I hope this helps and pls mark me brainliest :)

Answer:

C  -  Slope and a point that is not an intercept

Step-by-step explanation:

Khan answer

Answer:

Do you want the perimeter of this shape?

Answer:

it would be 8 because it is a parallelogram and they are parallel to each other

Step-by-step explanation:

CD=AB

Answer:

Step-by-step explanation:

Since its the same line the slope is same:

Correct choice is B

Answer:

B. 2 2/3

Step-by-step explanation:

Hope this will help

The property justifies Francesca's first step is subtracting 2.

Here,

Original Equation is,

- 2x + 2 = -4

First step is,

-2x = -6

What is the equation?

An equation is made up of expressions that equal each other.

Now,

Original Equation is,

- 2x + 2 = -4

For find the first step;

-2x + 2 -2 = 4 - 2

-2x = -6

Hence, The property justifies Francesca's first step is subtracting 2.

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Answer:

1.  26

2. 15

3. 14

4. [tex]\sqrt{50}[/tex] or [tex]5\sqrt{2}[/tex]

5. [tex]\sqrt{11} \\[/tex]

6. [tex]\sqrt{245}[/tex]  or [tex]7\sqrt{5}[/tex]

I think most of these answers are correct

Answer:

(5a²+4b³)³= 64b^9+240a^2b^6+300a^4b^3+125a^6

(2xy-1)³= 8x^3y^3−12x^2y^2+6xy−1

(3m-2n)= 0

(f+5)³=​ f^3+15f^2+75f+125

Step-by-step explanation:

(5a²+4b³)³  =  [tex]64b^{9} + 240a^{2} b^{6} + 300a^{4} b^{3} + 125a^{6}[/tex]

(2xy-1)³  = [tex]8x^3y^3 - 12x^2y^2 + 6xy - 1[/tex]

(3m-2n)  =  3m - 2n

(f+5)³  =​  [tex]f^3 + 15f^2 + 75f + 125[/tex]

The solution to the system of equation is (7, 2)

Using the simultaneous equation:

5x + 3y = 41

2x + 3y = 20

using elimination method

Subtract equation 1 from 2 to have:

5x - 2x = 41 - 20

3x = 21

x = 21/3

x = 7

Substitute x = 7 into equation 1 to get y

5x + 3y = 41

5(7) + 3y = 41

35 + 3y = 41

5y = 41 - 35

3y = 6

y = 6/3

y = 2

Hence the solution to the system of equation is (7, 2)

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