Help! Please! What is the exact volume of the cone? 80π ft³ 4003π ft³ 400π ft³ 418710π ft³

Answer:

12 years old

Step-by-step explanation:

Let's call Sydney's age x and Sam's age 2x. We can write:

x + 2x = 36

3x = 36

x = 12 so the answer is 12 years old.

Answer:

y=6

Step-by-step explanation:

divide the total area by 5 to get the area of the square

180/5= 36 cm²

the area of a square is y²

so y²=36⇒ y= 6

Answer:

26

Step-by-step explanation:

Answer:

Its 26

Step-by-step explanation:

Correct on edg. 2021

Answer:

54

Step-by-step explanation:

27 divided by 3 =9 times8 = 54

Answer:

1.) f(-2)=g(4)

2.) f(0) = g(-2)

3.) f(-4)=g(-2) and f(4)=g(4)

4.) -9

Step-by-step explanation:

Answer:

Step-by-step explanation:

surface area of two trapezoids=2[(12+8)/2×3]=2[30]=60 cm²

surface area of side rectangles=10×8+10×12=10(8+12)=200 cm²

surface area of top=10×5=50 cm²

surface area of bottom=10×3=30 cm²

Total surface area=60+200+50+30=340 cm²

Answer:

Step-by-step explanation:

to find the surface area , you need to find the area of each side(face)

top: 5*10=50

the bottom of the shape: 3*10=30

the front face:10*8=80

the sides are trapezoid shapes with:different dimensions:

side :8,12 and eight of 3 ( the shape has 3 faces the same)

area=((12+8)/2)*3= 30 (30*3 faces or sides)

add the numbers: 50+30+80+(30*3)=250 cm^2

I hope it is right and good luck

Answer:

Step-by-step explanation:

Given the equations x^2 + y^2=25 ...1 and x^2/15-y^2/9=1,.. 2 to solve the systam of equation we will make  x^2 the subject of the formula from the first equation and substitute it into the second equation as shown;

Fom 1; x² = 25-y²... 3

Substituting equation 3 into 2 to get the resulting equation will give;

x²/15-y²/9=1

25-y²/15 - y²/9 = 1

The final expression gives the required equation.

Answer:

yes

Step-by-step explanation

Answer:

Yes, they would be equivalent.

If you simplify

2/22 ÷2= 1/11

Therefore, this shows that they are equivalent.

Hope this helps! :)

Answer:

g=6

Step-by-step explanation:

We can start by multiplying both sides by 2

5(3g+2)=100

Now we can distribute the 5 by using the distributive property

15g+10=100

Then we subtract 10 from both sides

15g=90

Divide both sides by 15

g=6

Answer:

6

Step-by-step explanation:

5(3g + 2)/2 = 50              Multiply both sides by 2

5(3g + 2)  = 50*2 = 100   Remove the brackets

15g + 10 = 100                  Subtract 10     ***

15g+10-10 = 100 - 10         Collect like terms.

15g = 90                            Divide by 15   ***

15g/15 = 90/15

g = 6

I don't know how to cut this down so that it requires only 2 steps.  I guess that the two steps marked with *** are the 2 I would choose.

Answer:

Step-by-step explanation:

A(-5,-2),B(-2,-2), C(-5,2)

find distance first:d=√(x2-x1)^2+(y^2-y1^2)

AB: 3

BC: 5

AC: 4

perimeter of triangle=3+5+4=12

compliment angle=90

90+34=124

5x+17+x+19=180

x=24

Answer:

D 0.6

Step-by-step explanation:

plato/edmentum

Answer: 0.6

Step-by-step explanation:

Answer:

( P^2) / K^2 = x

Step-by-step explanation:

P = K * sqrt ( x)

Divide each side by K

P/K = sqrt(x)

Square each side

( P^2) / K^2 = x

Answer:

The answer is

[tex]X = ({ \frac{K}{P} })^{2} [/tex]

[tex]P = \frac{K}{ \sqrt{x} } [/tex]

Cross multiply

that's

P√x = K

Divide both sides by P

That's

√x = K/P

Square both sides to make x stand alone

That's

(√X)² = ( K/P)²

We have the final answer as

[tex]X = ({ \frac{K}{P} })^{2} [/tex]

Hope this helps you

Answer:

1.) Slope M are 3/4, 1/7

2.) No.

3.) No.

Step-by-step explanation:

1.) Slope M = change in y ÷ change in x

That is,

M = (y1 - y2)/(x2 -x1)

Given the following points:

A (10, 4) and B (–2, –5) C (–7, 1) and D (7, 8) E and F(-2, 2/3)

The slopeM between point A and B will be

M = (-5-4)/(-2-10)

M = -9/-12 = 3/4

The slope M between point C and D will be

M = (8-1)/(7+7)

M = 7/14 = 1/7

The slope M between point E and F will be

2.) The slope of a line passing through (1, 7) and (3, 9) will be

M = (9-7)/(3-1)

M = 2/2 = 1

But Robert say The ratio = (1-3)/(7-9) = 1

Though Robert will eventually get the Same value but that is not the correct method of calculating slope.

3.) Point A (1, 3) B (4, 2) C (–2, 4) do not lie on the same lines. If they do, they will all have the Same value for x or the same value for y.

In this exercise we have to use the knowledge of equations to calculate the points, in this way we can say that:

1.) 3/4, 1/7

2.) No.

3.) No.

So first we find that:

1.) The slope formula can be calculated as:

[tex]Slope \ M = \ change \ in \ y / change \ in \ x\\ M = (y_1 - y_2)/(x_2 -x_1)\\ M = (-5-4)/(-2-10)\\ M = -9/-12 = 3/4\\ M = (8-1)/(7+7)\\ M = 7/14 = 1/7 [/tex]

2.) The slope of a line passing through (1, 7) and (3, 9) will be:

[tex]M = (9-7)/(3-1)\\ M = 2/2 = 1\\ =(1-3)/(7-9) = 1 [/tex]

Is not the correct method of calculating slope.

3.) Do not lie on the same lines. If they do, they will all have the Same value for x or the same value for y.

See more about slope at brainly.com/question/3605446

Answer:

L/2

Step-by-step explanation:

If the width is half of its length, that means it is 1/2*L, as L is the length. This can be simplified into L/2, which is our answer.

Answer:L/2

Step-by-step explanation: The length is represented as L. So half the lenght is 1/2L which can also be represented as L/2. So the width is represented as L/2

Answer:

8.30662386292= mas o menos 8

Step-by-step explanation:

Para este pregunta, se necesita encontrar el raiz cuadrada de 69, porque 69 esta triplicada, entonces la temperatura inicial era  mas o menos 8

Answer:

k=1

Step-by-step explanation:

so FG and FE are equal meaning same magnitude

formula for magnitude is √{x2-x1}+{y2-y1}

(the square root is for all of it)

so use line FG since you have both points

you get √7 as magnitude

then apply it to FE

√7=√(4-0)+(4-k)

you can square both sides to remove the root and you get k=1

(when calculating magnitude the value is always absolute no regard to signs)

Answer:

7.5 hours

Step-by-step explanation:

distance = rate * time (d=rt)

First we find her average rate, or speed:

Now we take that rate and use our second distance to find the time:

d = rt

t = d/r = 350 miles / 46.6666 miles/hour = 7.5 hours

Answer:

3

Step-by-step explanation:

The Absolute value of -3 is 3 because it's the distance away from 0. Both have the same distance away from 0.

The opposite number of the integer number negative 3 will be 3.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The number that produces zero when multiplied by an is known as the additive inverse of a number, or a, in arithmetic. The opposite, a shift in the sign, and negation are other names for this number.

The number is given below.

⇒ - 3

The opposite of the number negative 3 will be given as,

⇒ - (-3)

⇒ 3

The opposite number of the integer number negative 3 will be 3.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ5

Answer:

k = -11

Step-by-step explanation:

Let [tex]p(x) = x^3-6x^2+kx+10[/tex]

And x+2 is a factor of p(x)

Let x+2 = 0 => x = -2

Putting in p(x)

=> p(-2) = [tex](-2)^3-6(-2)^2+k(-2)+10[/tex]

By remainder theorem, Remainder will be zero

=> 0 = -8-6(4)-2k+10

=> 0 = -8-24+10-2k

=> 0 = -22-2k

=> -2k = 22

Dividing both sides by -2

=> k = -11

Answer:

C. y=2x-48

Step-by-step explanation:

A. y=48x−2

B. y=48x+2

C. y=2x−48

D. y=2x+48

Profit per hotdog=$2

Quantity=x

Cost of hotdog, buns and mustard=$48

Find the equation profit earned by the hotdog stand for x hot dog sold

Total Profit(y)=(units profits*quantity)-cost

=$2*x-$48

y=2x-48

Answer:

C. y=2x−48

Step-by-step explanation:

did it on edge 2020

Answer:

Step-by-step explanation:

To calculate the perimeter we must add the lenghts of the sides :

Answer:

Step-by-step explanation:

The claim being tested is that p not equals ≠ 0.877

A) This is the alternative hypothesis and it is a two tailed test. It means that it can be in either direction.

B)Given that z = 2.94, the p value would be determined from the normal distribution table. Since the curve is symmetrical and it is a two tailed test, the p for the left tail and the right tail would be considered. We will look at the area in both tails. Since it is showing in one tail only, we would double the area

From the normal distribution table, the area above the test z score in the right tail is 1 - 0.998 = 0.002

We would double this area to include the area in the left tail of z = - 2.94 Thus

p = 0.002 × 2 = 0.004

C) Since alpha, 0.01 > than the p value, 0.004, then we would reject the null hypothesis, H0

Answer:

B

Step-by-step explanation:

mean = average. to find it, add all terms, and then divide by the number of terms.

find the mean of group a:

(1+1.5+3+3.2+2.8+1.5+1.8+2.5+2.2)/9 = 2.16

find the mean of group b:

(2+2.5+3.2+3+1.8+2.4+3+1.5+1/8)/9 = 2.1694

group b is larger.

answer = b

Answer:

52°

Step-by-step explanation:

Since the side 52° is 10 and is congruent to the other side x° (also has 10), we know that the triangle is isosceles and that the 2 angles are congruent (by definition of an isosceles triangle). We could also use Law of Sines and Law of Cosines to prove this.

Answer:

A. 52 degrees

Step-by-step explanation:

Two sides are equal, so the triangle is an isosceles triangle.

Both base angles are equal.

x = 52

Answer:

Step-by-step explanation:

The third one :

Answer:

[tex]P(t)=256*e^{0.068185t}[/tex]

10 minutes for the population to double.

Step-by-step explanation:

The general formula for the population equation, P(t), is:

[tex]P(t)=A*e^{nt}[/tex]

We are given that for t =5 minutes and t = 2 minutes:

[tex]P(5)=360=A*e^{5n}\\P(20)=1,000=A*e^{20n}\\\\[/tex]

Solving for A and n:

[tex]ln(360)=ln(A)+5n\\ln(1,000)=ln(A)+20n\\ln(1,000)-4ln(360)=ln(A)-4ln(A)+20n-20n\\ln(A)=5.5455536\\A=256\\n=\frac{ln(360)-ln(256)}{5}\\n=0.068185[/tex]

The exponential equation that represents this situation is:

[tex]P(t)=256*e^{0.068185t}[/tex]

The population will double when P(t) = 512 bacteria:

[tex]512=256*e^{0.068185t}\\ln(2)=0.068185t\\t=10.17\ minutes[/tex]

To the nearest minute, it takes roughly 10 minutes for the population to double.

Answer:

x<3

Step-by-step explanation:

-13x>-39

x<3

Answer:

  8∛4 ≈ 12.70 . . . . cm deep

Step-by-step explanation:

The ratio of volumes of similar cones is the cube of the ratio of their linear dimensions. That means the height of a cone with 1/2 the volume will be ...

  ∛(1/2)

times the height of the full cone.

The water will be ...

  (16 cm)(∛(1/2)) = 8∛4 ≈ 12.70 . . . . cm deep

Answer:

1 - 8/9 + 4/9 = 9/9 -8/9 +4/9 = (9-8+4)/9 = 5/9

Step-by-step explanation:

Answer:

The answer is 5/9.

Step-by-step explanation:

First, you have to make all the denorminator of the fractions the same by multultiplying :

[tex]1 - \frac{8}{9} + \frac{4}{9} [/tex]

[tex] = \frac{1}{ 1} - \frac{8}{9} + \frac{4}{9} [/tex]

[tex] = \frac{1 \times 9}{1 \times 9} - \frac{8}{9} + \frac{4}{9} [/tex]

[tex] = \frac{9}{9} - \frac{8}{9} + \frac{4}{9} [/tex]

Next, you have to make it into 1 fraction and simplify :

[tex] \frac{9}{9} - \frac{8}{9} + \frac{4}{9} [/tex]

[tex] = \frac{9 - 8 + 4}{9} [/tex]

[tex] = \frac{5}{9} [/tex]

Answer:

a

Step-by-step explanation:

Well in the first you buy 5P+2B+3L

but then you buy 3P +1B+2L

and you add then up