20. The surface areas of two similar solids are 216 m² and 1014 m². The volume of the larger one is 2197 m³. What is the volume of the smaller one?

im pretty sure it's the first option.

Answer:

#1) is right

Step-by-step explanation:

Answer:

V=2197

Step-by-step explanation:

Equation for volume of a cube:

V= side length cubed

V=(13)(13)(13)

V=2197

Answer:

V = 2,197 ft3

Step-by-step explanation:

Your welcome ;)

False.

Replace x with -2 and simplify. 5(-2) + 3 = 13

Multiply. -10 + 3 = 13

Add. -7 = 13

This is not true, so -2 is not a solution, therefore the answer to the question is false.

Answer:

[tex]\boxed{320}[/tex]

Step-by-step explanation:

    Let x = calories in chocolate bar

       ¼x = ¼ of the calories

¼x – 10 = 10 calories less than half the calories

¼x – 10 = 70

       ¼x = 80

          x = 320

There are [tex]\boxed{320}[/tex] calories in the chocolate bar.

The answer is:

The first option,

[tex]y=3.5[/tex]

To solve the problem, we need to follow the next steps:

- Set your calculator in degree mode to calculate Cos(64°)

- Isolate Y by multiplying each side of the equation by 8.

Solving we have:

[tex]Cos(64\°)=\frac{y}{8}\\\\0.44=\frac{y}{8}[/tex]

Multiplying each side of the equation by 8, we have:

[tex](0.44)*8=\frac{y}{8}*8\\3.52=y[/tex]

[tex]y=3.52[/tex]

Rounding to the nearest tenth, we have:

[tex]y=3.5[/tex]

Hence, the answer is the first option,

[tex]y=3.5[/tex]

Have a nice day!

Tan(angle) = opposite leg / adjacent leg.

Tan(64) = x /30

x = 30 * tan(64)

x = 61.51

Answer:

the answer is d 61.51

Step-by-step explanation:

Answer:  $4080

Step-by-step explanation:  25 x 11 = 275,  4355-275 = 4080

The Haugh family will need to pay $4,080 in the 12th month if they make only the minimum payment for 11 months. The monthly payment they should pay is $362.92 (rounded to the nearest cent).

A) To find out how much the Haugh family will need to pay in the 12th month if they make only the minimum payment for 11 months, we need to calculate the remaining balance after 11 months. The total cost of the hot tub is $4,355. The minimum monthly payment is $25, so the remaining balance after 11 months is $4,355 - 11 * $25 = $4,080. Therefore, the Haugh family will need to pay $4,080 in the 12th month.

B) To calculate the monthly payment, we divide the total cost of the hot tub by the number of months (12). So, the monthly payment is $4,355 / 12 = $362.92. However, since there is a minimum payment requirement of $25, the Haugh family should pay $362.92 each month (rounded to the nearest cent).

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Answer:

Tangent is positive in Quadrant III.

Step-by-step explanation:

All trigonometric functions are positive in QUADRANT I

The Sine function is positive in QUADRANT II

The Tangent function is positive in QUADRANT III

The Cosine function is positive IN QUADRANT IV

*ASTC JUST REMEMBER THAT :)*

There are four quadrants in a plane, and the true statement is (b) Tangent is positive in Quadrant III.

There are four quadrants in a coordinate plane, and they have the following properties

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

The above means that the true statement is (b) Tangent is positive in Quadrant III.

Read more about quadrants at:

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Answer:

1st prize

Step-by-step explanation:

Not all people use a car. Some people walk, take a bike, etc. So, if you won free gas for life, you might not be able to use it.

1st prize. To decide between $250,000 in cash or free gas for life, one must analyze projected gas consumption, inflation, and investment opportunities. The cash offers immediate value and investment potential, whereas the value of free gas depends on driving habits and future fuel prices.

Answer:

13.3 cm

Step-by-step explanation:

Apply the Pythagorean Theorem:

hyp² = (2nd longest side)² + (shortest side)².  Here the numbers are:

(24 cm)² = (20 cm)² + (shortest side)², or

576 - 400 = 176 = hyp²

Taking the square root of both sides, we get (shortest side) = 13.3 cm

Answer: the answer is 13.3

Answer:

  D(4, 1)

Step-by-step explanation:

The two diagonals have the same midpoint, so ...

  (A+C)/2 = (B+D)/2

  A+C = B+D . . . . multiply by 2

  A+C-B = D . . . . . subtract B

  D = (1, 1) + (5, 3) - (2, 3) = (1+5-2, 1+3-3)

 D = (4, 1)

Answer:

D(4 ; 1)

Step-by-step explanation:

vector(AB)=(2-1 ; 3-1) = (1 ; 2)

vector(DC)=(5-x ; 3-y)  and D(x ; y )

ABCD  parallelogram :vector(AB)=vector(DC)

you have the system : 5-x =1

                                       3-y =2

so : x=4 and y=1

D(4 ; 1)

Answer:

P = 1/2 = 0.5

Step-by-step explanation:

Total amount of cans = 100

Cans of cola = 34

Cans of orange soda = 50

Cans of ginger ale = 12

Cans of root beer = 4

Probability of selecting

- a can of cola = 34/100 = 0.34

- a can of orange soda = 50/100 = 0.5

- a can of ginger ale = 12/100 = 0.12

- a can of root beer = 4/100 = 0.04

Since we are asked the probability that the can selected is a root beer​, cola, or ginger ale, we need to add together the probabilities of each.

P = 0.04 + 0.34 + 0.12 = 0.5 = 1/2

Answer:

xy = 1

k = 79

Step-by-step explanation:

Question One

The first and third frames look to me to be the same. I'll treat them that way.

y = x^2                        Equate y = x^2 to the result of 2y + 6 = 2x + 6

2y + 6 = 2(x + 3)         Remove the brackets

2y + 6 = 2x + 6           Subtract 6 from both sides

2y = 2x                       Divide by 2

y = x

Now solve these two equations.

so x^2 = x                  

x > 0

1 solution is x = 0 from which y = 0. This won't work. x must be greater than 0. So the other is

x(x) = x                           Divide both sides by x            

x = 1                            

y = x^2                           Put x = 1 into x^2

y = 1^2                           Solve

y = 1                      

The second solution is

(1,1)

xy = 1*1

xy = 1

Answer: A

Question Two

square root(k + 2) - x = 0

Subtract x from both sides

sqrt(k + 2) = x                Square both sides

k + 2 = x^2                    Let x = 9

k + 2 = 9^2                    Square 9

k + 2 = 81

k = 81 - 2

k = 79

Answer:

 The direction angle of vector v is equal to  [tex]9.5\°[/tex]

Step-by-step explanation:

Let

[tex]A(-5,0),B(7,2)[/tex]

The vector v is given by

[tex]v=B-A[/tex]

[tex]v=(7, 2) - (-5, 0)[/tex]

[tex]v=((7 - (- 5)), (2-0))[/tex]

[tex]v=(12, 2)[/tex]

 Remember that

The direction angle of the vector is equal to

 [tex]tan (\theta) =\frac{y}{x}[/tex]

substitute the values

 [tex]tan (\theta) =\frac{2}{12}[/tex]

 [tex]\theta=arctan(\frac{2}{12})=9.5\°[/tex]

Answer:

The direction angle of vector v is equal to  9.5\°

Step-by-step explanation:

Let

A(-5,0),B(7,2)

The vector v is given by

v=B-A

v=(7, 2) - (-5, 0)

v=((7 - (- 5)), (2-0))

v=(12, 2)

Remember that

The direction angle of the vector is equal to

tan (\theta) =\frac{y}{x}

substitute the values

tan (\theta) =\frac{2}{12}

\theta=arctan(\frac{2}{12})=9.5\°

Step-by-step explanation:

put that in a computer calc and  it shoud give u the awnser

Check the picture below.

Answer:

Step-by-step explanation:

55

Answer:

C. 6 feet

Step-by-step explanation:

The answer is:

The correct option is B. the string is 3.9 feet long.

To solve the problem, we need to use the given formula, substituting "T" equal to 2.2 seconds, and then, isolating "L".

Also, we need to remember the formula to calculate a simple pendulum:

[tex]T=2\pi \sqrt{\frac{L}{g} }[/tex]

Where,

T, is the period in seconds

L, is the longitud in meters or feet

g, is the acceleration of the gravity wich is equal to:

[tex]g=9.81\frac{m}{s^{2} }[/tex]

or

[tex]g=32\frac{feet}{s^{2} }[/tex]

We are given the formula:

[tex]T=2\pi \sqrt{\frac{L}{32} }[/tex]

Where,

T, is the period of the pendulum (in seconds).

L, is the length of the string.

32, is the acceleration of the gravity in feet.

So, substituting "T" and isolating "L", we have:

[tex]2.2seconds=2\pi \sqrt{\frac{L}{32\frac{feet}{seconds^{2}} }}\\\\2\pi \sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}}=2.2seconds\\\\\sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}}=\frac{2.2seconds}{2\pi }[/tex]

Then, squaring both sides of the equation, to cancel the square root, we have:

[tex]\sqrt{\frac{L}{32\frac{feet}{seconds^{2} }}}=\frac{2.2seconds}{2\pi}\\\\(\sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}})^{2}=(\frac{2.2seconds}{2\pi})^{2}=(0.35seconds)^{2} }\\\\\frac{L}{32\frac{feet}{seconds^{2}}}}=0.123seconds^{2}\\\\L=32\frac{feet}{seconds^{2}}*0.123seconds^{2}\\\\L=3.94feet=3.9feet[/tex]

Hence, we have that the answer is:

B. the string is 3.9 feet long.

Have a nice day!

Answer:

by 5

Step-by-step explanation: because tgey wou;d nred help

Answer:

C.) If events A and B are DEPENDENT, then A's occurrence can affect the probability of B's occurrence. For example, when two cards are chosen from a deck without replacement, the possibilities change for the second card.

Answer:

a = -8

b = -2

Step-by-step explanation:

We have been given the following radical expression;

[tex]\sqrt[3]{x^{10} }[/tex]

The radical can be expressed using the law of exponents;

[tex]\sqrt[n]{x}=x^{\frac{1}{n} }[/tex]

The radical can thus be re-written as;

[tex]\sqrt[3]{x^{10} }=(x^{10})^{\frac{1}{3} }[/tex]

Using the law of exponents;

[tex](a^{b})^{c}=a^{bc}[/tex]

The last expression becomes;

[tex](x^{10})^{\frac{1}{3} }=x^{\frac{10}{3} }=x^{3}*x^{\frac{1}{3} }\\\\=x^{3}\sqrt[3]{x}[/tex]

substituting x with -2 yields;

[tex]-2^{3}\sqrt[3]{-2}=-8\sqrt[3]{-2}[/tex]

Answer:

The coordinates of the solution that lies in quadrant IV are (2, -5)

Step-by-step explanation:

We have 2 equations, the first of an ellipse and the second of a circumference.

[tex]2x^2+y^2=33\\x^2+y^2+2y=19[/tex]

To solve the system solve the second equation for x and then substitute in the first equation

[tex]x^2+y^2+2y=19\\\\x^2 = 19 -y^2 -2y[/tex]

So Substituting in the first equation we have

[tex]x^2 = 19 -y^2 -2y\\\\2(19 -y^2 -2y)+y^2=33\\\\38 -2y^2-4y +y^2 = 33\\\\-y^2-4y+5=0\\\\y^2 +4y-5 = 0[/tex]

Now we must factor the quadratic expression.

We look for two numbers that multiply as a result -5 and add them as result 4.

These numbers are -1 and 5.

Then the factors are

[tex]y^2 +4y-5 = 0\\\\(y-1)(y+5) = 0[/tex]

Therefore the system solutions are:

[tex]y = 1[/tex]; [tex]y = -5[/tex]

In the 4th quadrant the values of x are positive and the values of y are negative.

So we take the negative value of y and substitute it into the system equation to find x

[tex]y=-5\\\\2x^2+(-5)^2=33\\\\2x^2 = 33-25\\\\2x^2 = 8\\\\x^2 = 4[/tex]

[tex]x = 2[/tex], and [tex]x= -2[/tex]

In the 4th quadrant the values of x are positive

So we take the positive value of x

the coordinates of the solution that lies in quadrant IV are (2, -5)

Answer:

It is easy it is a 2 step equation if you know the 2 four boxes

Step-by-step explanation:

is the variable alone?

No

what is it attached to?

you always do adding or subtracting first so it is attached to 3

How is it attached?

by subtraction

what is the inverse operation?

it is addition

then all you do is the same thing but with multiplication or division

Answer:

Use Substitution.

Plug in 2x-3 in place of y in the second equation.

4x - 3(2x-3) = 31

4x - 6x + 9 =31

            -9     -9

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

-2x=22 so x=-11

Then, y=2(-11)-3, so y=-25

So the solution would be (-11,-25).

Answer:

25%

Step-by-step explanation:

Assuming the catching of a fish is a random process and that the probability of catching any of the listed kinds of fish is proportional to their population, then the probability of catching a sturgeon is 50%. The probability of catching another one is also 50% (assuming the events are independent). So, the joint probability is the product of these:

0.50 × 0.50 = 0.25 = 25% . . . . . probability of catching 2 sturgeon in a row.

The probability of both fish being white sturgeon is 0.25.

To calculate the probability, we need to multiply the probabilities of catching a white sturgeon each time. Since 50% of the fish are white sturgeon, the probability of catching one is 0.5. Therefore, 0.5 multiplied by 0.5 equals 0.25.

Answer:

0 Kesha is already home 8+4 is 12 and it's 12 miles from the store to her house .-.

Step-by-step explanation:

Answer:

0 more miles.

Step-by-step explanation:

If 12 miles is the total distance from her house to the store the answer should be 0.  She should be at home because 8 miles on the bike + the 4 walked = 12 miles, which is how many she rode to the store in the first place.

Answer:

C2 + a2 +2 = b

Would be the new formula

Answer:

the correct answer is:

a =  √ c^2 − b^2

Step-by-step explanation:

a^2 + b^2 = c^2

Explanation:

a^2 + b^2 = c^2

a^2 = c^2 − b^2

a =  √ c^2 − b^2

The number generator is fair. it picked the approximate percentage of red most of the time.

Answer:

The number generator is fair, It picked the approximate percentage of red s*ckers most of the time.

Step-by-step explanation:

7*3+9*3+8*4 = 80

80 divided by 10 gives you an average of 8 red s*ckers each time which is exactly 80% of the amount of s*ckers picked

(s*ckers is banned for some reason)

Answer:

The answer is confirmed 1.  Just took it.

Step-by-step explanation:

Answer:

Company 1 is greater.

Step-by-step explanation:

Given,

The function that shows the production cost of company 1,

[tex]f(x)=0.15x^2-6x+400[/tex]

Differentiating with respect to x,

We get,

[tex]f'(x)=0.30x-6[/tex]

Again differentiating,

[tex]f''(x)=0.30[/tex]

For minimum or maximum,

f'(x) = 0,

[tex]\implies 0.3x-6=0[/tex]

[tex]\implies x = 20[/tex]

Since, at x = 20, f''(x) = Positive,

So, f(x) is minimum at x = 20,

⇒ Minimum cost in company 1 is,

[tex]f(20)=0.15(20)^2-6(20)+400[/tex]

[tex]=340[/tex]

Also, by the given table,

The minimum cost of company 2 is at x = 70,

g(70) = 55,

Since, 340 > 55,

Hence, Based on the given information, the minimum production cost for company 1 is greater.

the expanded form of (3x + 4)(2x − 5) is 6x² - 7x - 20. The third option is the correct option.

The simplified form of (3x + 2y) - (x + 2y) is 2x. The correct option is the third option.

3x + 4y equals 36. The third option is the correct option.

To evaluate f(x) = 4x + 3x² - 5, f(x) evaluates to -1. The last option is the correct option.

The Breakdown

To expand the expression (3x + 4)(2x − 5), you can use the distributive property:

(3x + 4)(2x − 5) = 3x(2x) + 3x(-5) + 4(2x) + 4(-5)

Now, simplify each term:

= 6x² - 15x + 8x - 20

Combine like terms:

= 6x² - 7x - 20

So, the expanded form is 6x² - 7x - 20.

To simplify the expression (3x + 2y) - (x + 2y), we can remove the parentheses and combine like terms:

(3x + 2y) - (x + 2y) = 3x + 2y - x - 2y

The terms "2y" and "-2y" cancel each other out:

= 3x - x

Simplifying further:

= 2x

Therefore, the simplified form of (3x + 2y) - (x + 2y) is 2x.

To find the value of 3x + 4y, we need to solve the given equation and then substitute the values into the expression.

Given: 1/2x + 2/3y = 6

To eliminate the fractions, we can multiply the entire equation by the least common multiple (LCM) of the denominators, which is 6:

6 × (1/2x + 2/3y) = 6 × 6

This simplifies to:

3x + 4y = 36

Therefore, 3x + 4y equals 36.

To evaluate f(x) = 4x + 3x² - 5 when x = -2, we substitute -2 for x in the expression:

f(-2) = 4(-2) + 3(-2)² - 5

Simplifying:

f(-2) = -8 + 3(4) - 5

f(-2) = -8 + 12 - 5

f(-2) = -1

Therefore, when x = -2, f(x) evaluates to -1.

Answer:

(x + 5)² + (y + 7)² = 288

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

The radius is the distance from the centre (- 5, - 7) to the point on the circle (7, 5)

Use the distance formula to calculate r

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 5, - 7) and (x₂, y₂ ) = (7, 5)

r = [tex]\sqrt{(7+5)^2+(5+7)^2}[/tex] = [tex]\sqrt{12^2+12^2}[/tex] = [tex]\sqrt{288}[/tex]

Hence

(x - (- 5))² + (y - (- 7))² = ([tex]\sqrt{288}[/tex])², that is

(x + 5)² + (y + 7)² = 288

[tex]\boxed{W=2ft}[/tex]

A prism is a solid object having two identical bases, hence the same cross section along the length. Prism are called after the name of their base. On the other hand, a rectangular prism is a solid whose base is a rectangle.  Multiplying the three dimensions of a rectangular prism: length, width and height, gives us the volume of a prism:

[tex]V=L\times W\times H[/tex]

From the statement of the problem we know:

[tex]V=24ft^3 \\ \\ H=3ft \\ \\ W=W \\ \\ L=W+2[/tex]

So:

[tex]24=(W+2)(W)(3) \\ \\ 3W(W+2)=24 \\ \\ 3W^2+6W-24=0 \\ \\ From \ the \ Quadratic \ Formula: \\ \\ W_{12}=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ W_{12}=\frac{-6 \pm \sqrt{6^2-4(3)(-24)}}{2(3)} \\ \\ W_{1}=2 \\ \\ W_{2}=-4[/tex]

Since we can't have negative distance, the only valid option is [tex]\boxed{W=2ft}[/tex]

Answer:

Step-by-step explanation:

X=15

Answer:

Step-by-step explanation:

[tex]log_6 6^{(x-8)} = log_6 730\\x-8 = log_6 730\\x= 8+log_6 730[/tex]

Answer:  b) -0.625

Step-by-step explanation:

The formula for the z-score is:

[tex]z=\dfrac{x-\mu}{\sigma}\\\\\bullet z \text{ is the z-score}\\\bullet x \text{ is the value}\\\bullet \mu \text{ is the mean}\\\bullet \sigma \text{ is the standard deviation}\\\\z=\dfrac{6-8}{3.2}\\\\\\.\ =\dfrac{-2}{3.2}\\\\\\.\ =\large\boxed{-.0625}[/tex]