simplify the number using the imaginary unit i √-75

Answer:

D! found it out for the brainly gang:)

Step-by-step explanation:

The expression represents the volume of the cone that is times the volume of the pyramid that it fits inside is Pi/4(4r²/3).

We have given that the expression represents the volume of the cone

that is times the volume of the pyramid that it fits inside

(2r^2h) (4r^2h)

The formula for the volume of a cone is ⅓ r^2h cubic units.

where r is the radius of the circular base and h is the height of the cone.

Therefore from the given we get the volume of a pyramid is Pi/4(4r²/3).

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Answer:

Step-by-step explanation:

b.)

amplitude: 4

period; 4pi

phase shift; pi/2

vertical shift: -3

Analyzing the graph shows that the parameters are in

b. amplitude: 4

period; 4π

phase shift; π/2

vertical shift: -3

Amplitude: The amplitude of a periodic function is the measure of its maximum displacement from its average or equilibrium position.

Period: The period of a periodic function is the distance along the x-axis between one cycle of the function and the next identical cycle.

Vertical Shift: The vertical shift (or translation) of a function is a vertical displacement of the entire graph either upward or downward.

Phase Shift: The phase shift is a horizontal displacement or translation of a function.

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Answer:

3 boxes

Step-by-step explanation:

2 out of 16 boxes are flawed. So the unit rate is

[tex]\frac{2}{16}=\frac{1}{8}[/tex]

Now, to find number of flawed boxes is 24 checkings, we need to multiply the unit rate (1/8) by 24. So:

[tex]\frac{1}{8}*24=3[/tex]

The answer is 3

Answer:

Trust me the answer is 3

Step-by-step explanation:

Also please give me some Hearts

The domain is the set of all point where you can evaluate the function.

As you can see, the first piece is defined from -infinity to 2 (included).

The second piece is defined from 2 to 6 (excluded).

The third piece is defined from 6 (excluded) to +infinity.

So, the domain of the function is composed by all the real numbers which are not 6:

[tex](-\infty,6)\cup(6,\infty) = \mathbb{R}\setminus\{6\} = \{x \in \mathbb{R}\ :\ x\neq 6\}[/tex]

As for the range, it is the set of all values taken by the function. We can see that the first piece spans the y axis from 0 to infinity.

The second piece is constantly equal to 2, so it adds nothing.

The third piece spans the y axis from -2 to -infinity, so the range is

[tex](-\infty,-2)\cup[0,\infty) = \mathbb{R}\setminus [2,0) = \{x \in \mathbb{R}\ :\ x\geq 0\ \lor\ x<-2\}[/tex]

The domain is the set of all point where you can evaluate the function.

As you can see, the first piece is defined from -infinity to 2 (included).

The second piece is defined from 2 to 6 (excluded).

The third piece is defined from 6 (excluded) to +infinity.

So, the domain of the function is composed by all the real numbers which are not 6:

As for the range, it is the set of all values taken by the function. We can see that the first piece spans the y axis from 0 to infinity.

The second piece is constantly equal to 2, so it adds nothing.

The third piece spans the y axis from -2 to -infinity, so the range is

Answer:

The correct answer option is A. [tex]\frac{x^{12}}{64}[/tex].

Step-by-step explanation:

We are given the following expression and we are to simplify it:

[tex] ( 4 x ^ { - 4 } ) ^ { - 3 } [/tex]

Distributing the power among the terms to get:

[tex] 4 ^ { - 3 } . 4 ^ { - 4 * - 3 } [/tex]

[tex]4^{-3}.x^{12}[/tex]

[tex]\frac{x^{12}}{4^3}[/tex]

[tex] \frac { x ^ { 1 2 } } { 6 4 } [/tex]

Answer:

The height of the prism is [tex]1\frac{1}{6}[/tex] units ⇒ answer a

The number of blocks needed is 133 ⇒ answer c

Step-by-step explanation:

* Lets explain how to solve the problem

- The volume of a rectangular prism is

→ V = Area of the base × its height

- The volume of the rectangular prism is [tex]3\frac{25}{36}[/tex] units³

- The area of its base is [tex]3\frac{1}{6}[/tex] units²

- Substitute the values of the volume and area of the base in the rule

∴ [tex]3\frac{25}{36}=3\frac{1}{6}*h[/tex]

- Divide the two sides by [tex]3\frac{1}{6}[/tex]

∴ [tex]h=\frac{7}{6}=1\frac{1}{6}[/tex] units

* The height of the prism is [tex]1\frac{1}{6}[/tex] units

- The volume of each cubic block is [tex]\frac{1}{36}[/tex] units³

- The number of blocks = volume of the prism ÷ volume of the block

∵ The volume of the prism is [tex]3\frac{25}{36}[/tex] units³

∵ The volume of each block is [tex]\frac{1}{36}[/tex] units³

∴ The number of blocks = [tex]3\frac{25}{36}[/tex] ÷ [tex]\frac{1}{36}=133[/tex]

∴ The number of blocks = 133

* The number of blocks needed is 133

Answer:

1st one is 1 1/6

2nd one is 133

I did the test on Plato and this was right :)

Answer:

a

Step-by-step explanation:

When two triangles are similar, their corresponding sides are in proportion. The length of NO cannot be determined from the given information.

When two triangles are similar, their corresponding sides are in proportion. In this case, the scale factor is 3/2, meaning that the corresponding sides of triangle ABC and triangle MNO are in the ratio of 3:2.

To find the length of side NO, we can set up the proportion:

AB/MN = BC/NO = AC/OO

Since we know that AB = 3 and MN = 2, we can solve for NO:

3/2 = BC/NO

3NO = 2BC

NO = (2/3)BC

Therefore, the length of NO is (2/3) times the length of BC.

Since we don't know the length of BC, we cannot determine the exact length of NO. The answer choices provided do not match the information given, so none of the given options can be correct.

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the answer is J) 2

because the x values are going up in twos and the yard values are adding one each time.

so

(8,1)

and

(10, 2)

hope this helps

Answer: 5/6

Step-by-step explanation:

Add both of the fractions.

1/6+ 2/3

Need to make the denominator the same for both fractions.

Denominator would be 6. Multiply by 2 up and down for 2/3

1/6+4/6

5/6

1.8y is the answer because first you do 3/4y into a decimals number and then it’s 0.75 then I times it by 2.4 which is 1.8y

To solve the equation 3/4 y = 2.4x for y, we multiply both sides of the equation by 4/3 to eliminate the fraction. Simplifying the equation gives us y = 3.2x. The constant of proportionality in this equation is 3.2.

To solve the equation 3/4 y = 2.4x for y, we need to isolate y on one side of the equation. First, we can multiply both sides of the equation by 4/3 to eliminate the fraction:

3/4 * y = 2.4x

y = (2.4x)/(3/4)

Next, we can simplify the equation by multiplying the numerator and denominator of the fraction by the reciprocal of 3/4, which is 4/3:

y = (2.4x) * (4/3)

y = (9.6x)/3

y = 3.2x

Therefore, the equation 3/4 y = 2.4x can be solved for y to give the expression y = 3.2x. The constant of proportionality in this equation is 3.2, which indicates that y is directly proportional to x with a scale factor of 3.2.

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Ms. Nash, an executive with a television company, is trying to decide on the subject matter for a new television series for adults. She chooses to conduct a survey to help her make an informed decision. Which of the following sampling techniques should Ms. Nash use in order to obtain the most representative sample of the viewing audience?

Ms. Nash should ask a randomly–chosen, equal number of men and women shopping at a department store.

Ms. Nash should ask the first two hundred men she encounters on the busy street in front of her office.

Ms. Nash should ask five men and five women shopping at a local grocery store.

Ms. Nash should ask men and women from a variety of age ranges who are attending a science fiction movie festival.

It’s the first one

Final answer:

Ms. Nash should use a stratified random sampling method to ensure a representative sample of the viewing audience for a new TV series. The best option available is to query men and women from a variety of age ranges at a science fiction movie festival, despite potential genre bias.

Explanation:

Ms. Nash, an executive with a television company, should employ a sampling technique that ensures a representative sample of the adult viewing audience for a new television series. The most effective approach would be to use random sampling with a stratified design, which takes into account various characteristics such as age, gender, and possibly other demographics or interests relevant to the content of the television series. Although none of the options provided perfectly align with this methodology, the most appropriate among them is the fourth option, which suggests asking men and women from a variety of age ranges who are attending a science fiction movie festival. This method attempts to achieve some level of stratification by including a variety of age ranges, which is a crucial aspect when trying to extrapolate the preferences of a larger population. Moreover, by selecting from men and women, there is an acknowledgment of the need to balance gender representation. However, the choice of a science fiction movie festival may introduce a selection bias toward viewers who prefer that genre, so it's not entirely ideal for a general audience survey.

Answer:Options 'A' and 'C' are correct.

Step-by-step explanation:

Let the number of sheep be 's'.

Let the number of goats be 'g'.

According to question, we have given that

the number of sheep and goats are not more than 43.

The number of goats are fewer than 22.

So, the inequalities would be

[tex]g<22\\\\and\\\\s+g<43[/tex]

Hence, Options 'A' and 'C' are correct.

The two inequalities for Harold's sheep and goats situation are A. g < 22 and C. s + g ≤ 43.

To represent the situation described about Harold's sheep and goats, we need to set up two inequalities based on the given information:

Using these inequalities, we can help Harold determine how to distribute his sheep and goats in the new field.

Answer:

12%

Step-by-step explanation:

To solve this problem, we need to find the probability that someone is in the brass section and play trombone.

To do this, we can multiply the probability of someone being in the brass section and the probability of someone playing trombone.

[tex]0.5*0.24=0.12[/tex]

Therefore, it is 12% that a randomly selected band members is in the brass section and plays trombone.

Answer: 12 percent

Step-by-step explanation:

Answer:

Five more than the square of a number= 5 + x²

Five more than twice a number = 5 + 2x

Five less than the product of 3 and a number = 3x - 5

Five less the product of 3 and a number = 5 -3x

Twice the sum of a number and 5 = 2(x + 5)

The sum of twice a number and 5 = 2x + 5

The product of a cube of a number and 5= 5x³

The cube of the product of 5 and a number= (5x)³

Olá

Answer:

(5x)³=

(5x) ao cubo  

5.5.5=125X³

2(x+5)= 2x+10

             2x=10

              x=10/2

                X=5

2x+5= 2x - 5 = 0  

2x = 0 + 5  

2x = 5  

x = 5/2

3x-5= 3x= +5

           X= 5/3 or X= 1,6

5+2x= 2x=-5

            X= -5/2

5+x²= x²+5  a=1 b= 5 c=0

5²-4.1.0 (corta,pois -4.1.0=0)

=25  

x= -b +/- raíz de bhaskara/ 2.a

x=-5 +/- 5/2

x'= 0/2=0

x"=  -10/2= -5

5-3x= 3x=-5

          X= -5/3

5x³ = 0   a=5 b= 0 c=0

0²-4.5.0

= 0 (duas raízes reais e iguais)

x'= 0

x"= 0

Espero ajudar♥

What is your question??

Answer:144

Step-by-step explanation: 144 since width times length times height equals volume. so 5 times 2 times ? equals 1440.  So 10 times ? equals 1440.  So next 1440 divided by 10 equals 144.  So the answer is 144.

Answer:

Step-by-step explanation:

144 cm.

Answer:

He earned 120% out of 150%.

Step-by-step explanation:

The test is work 150 points, while each question being 10 points each, so we can divide this and we will get 15 questions. Then we can just multiple, 10 by 12 and get 120, this means he got 12 out of 15 questions right, or 120%out of 150%.

I don't know the area of a parallelogram off the top of my head but you can use the area of the rectangle and the area of the triangle and add those. The area of the triangle is 1/2*base*height and use the pythagorean theorem to find the base. 3² + b² = 5²; 9 + b² = 25; b² = 16; b = 4. The area of the triangle is 1/2*4*3 or 6 in. Since there are two of them, the total area of the triangles are 12 in. The area of the rectangle is length*width or (12 - 4) * 3 which is 8 * 3 or 24in. Add these areas together to get 36in total

The area of the given rectangle is 36 inch^2.

The area of a parallelogram is off the top of my head but you can use the area of the rectangle and the area of the triangle and add those.

The area of the triangle is 1/2*base*height

use the Pythagorean theorem to find the base.

3² + b² = 5²

9 + b² = 25

b² = 16

b = 4.

The area of the triangle is 1/2*4*3 or 6 in.

Since there are two of them, the total area of the triangles are 12 in.

The area of the rectangle is length*width or (12 - 4) * 3 which is 8 * 3 or 24in.

Add these areas together to get 36in total.

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A. 1/4 because numbers 6 and 3 have 2 bigger of a chance than the other numbers, so the spinner is out of 8. Since 3 has double the chance of being landed on than 1,2,4, and 5, than the probability of the spinner landing on the number 3 is 2/8, which is simplified to 1/4

Without specific details about the spinner, it's impossible to accurately determine the probability of landing on 3. Assuming a hypothetical spinner with numbers 1-8, the answer would be C. 1/8.

The subject of your question is probability, which is a branch of Mathematics. The probability of an event is calculated by dividing the number of ways an event can occur by the total number of possible outcomes. Given your question, if we are to find the probability of landing on 3, we need to know how many '3's there are on the spinner, and how many total outcomes there are. Unfortunately, without a provided image or additional details about the spinner, it's impossible to accurately determine the probability.

Assuming a standard spinner with one '3' and eight total outcomes (numbers 1 through 8), the probability would be 1/8, so the answer should be C. 1/8. But again, this is based on assumptions, the actual answer could vary if the information about the spinner is different.

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The perimeter of a rectangle si length + length + width + width or 2l + 2w. Substitute your values in to get 2(70) + 2(65) → 140 + 130 → 270 feet

Answer:

Unusual, because the result is less than the minimum usual value

Step-by-step explanation:

A result of 55 heads out of the 140 trials is to be considered unusual .

In a fair coin toss, the probability of getting heads (H) or tails (T) is each 0.5 (50%) because there are two equally likely outcomes. Therefore, if you were to toss a fair coin 140 times, you would expect to get heads approximately half the time, which is 140 * 0.5 = 70 times.

Consider the result of 55 heads. This result is less than the expected value of 70 heads for 140 tosses. It is slightly below what you would anticipate for a fair coin.

So this result would be unusual.

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Answer:

Step-by-step explanation:

Keep in mind that the derivative of ln(u) = u'/u.  Here, our u is x^2 + y^2, so the derivative of that will fit in for u'.  Let's do this step by step:

[tex]xy=ln(x^2+y^2)[/tex]

Working on the left first, using the product rule, the derivative (implicite, of course!) is:

[tex]x\frac{dy}{dx}+1y=ln(x^2+y^2)[/tex]

Now we will work on the right side, keeping in mind the rule above for derivatives of natural logs:

[tex]x\frac{dy}{dx}+1y=\frac{2x+2y\frac{dy}{dx} }{x^2+y^2}[/tex]

Now we are going to get rid of the donominator on the right by multiplication on both sides:

[tex](x^2+y^2)(x\frac{dy}{dx}+1y)=2x+2y\frac{dy}{dx}[/tex]

Distribute on the left to get

[tex]x^3\frac{dy}{dx}+x^2y+xy^2\frac{dy}{dx}+y^3=2x+2y\frac{dy}{dx}[/tex]

Now collect all the terms with dy/dx in them on one side and everything else goes on the other side:

[tex]x^3\frac{dy}{dx}+xy^2\frac{dy}{dx}-2y\frac{dy}{dx}=2x-x^2y-y^3[/tex]

Factor out the common dy/dx:

[tex]\frac{dy}{dx}(x^3+xy^2-2y)=2x-x^2y-y^3[/tex]

and divide on the left to isolate the dy/dx:

[tex]\frac{dy}{dx}=\frac{2x-x^2y-y^3}{x^3+xy^2-2y}[/tex]

And there you go!

1. Plug in " -2 " into f

f(-2) = 3 (-2) - 1

f(-2) = -6 - 1

f(-2) = -7

2. Plug in "5" into g

g(5) = -(5) + 6

g(5) = -5 + 6 = 1

3. Add what you got when you solved for f(-2) and g(5) together

f(-2) + g(5) = ?

f(-2) + g(5) = -7 + 1

f(-2) + g(5) = -6

Your answer is A

Don't forget to vote brainliest! I hope I helped! :)

F(x)= 3x -1

G(x)= -x + 6

F(-2) + g(5)= ?

F(-2)= 3(-2) -1

F(-2)= -6 -1

F(-2)= -7

G(5)= -5 + 6

G(5)= 1

F(-2) + g(5) =

-7 + 1 = -6

A) -6

Answer:4.64

Step-by-step explanation: I took the test on this and it was correct

Answer:

4.64

Step-by-step explanation:

bcuz sir ghost said so

Answer:

.4 is the answer

Step-by-step explanation:

This is a right triangle problem.  We have one leg as .5 in length and the other leg as 1.2 in length.  The "straight" way to your grandma's house is the hypotenuse.  We need to find that length which will give us the distance straight from your house to their house if you didn't have to go out of your way to avoid the water.  The hypotenuse is found with Pythagorean's Theorem.  It will be filled in and solved as follows:

[tex].5^2+1.2^2=c^2[/tex]

[tex].25+1.44=c^2[/tex]

[tex]1.69=c^2[/tex]

and c = 1.3

That's the straight distance.  You had to go out of your way to the tune of .5+1.2 which is 1.7 miles.  You figure out how much shorter it is taking the straight path by subtracting 1.7 - 1.3 which is .4

Answer:

option D

Step-by-step explanation:

To quickly solve this problem, we can use a graphing tool or a calculator to plot the equation.

Please see the attached image below, to find more information about the graph

The equation is:

y=Arc cos (1/3x)    ;  -5≤x≤5

The answer is option D

Answer:

t = 3.1 seconds

Step-by-step explanation:

Set the equation h = -16t^2 + 40t + 30 equal to 0 (0 represents ground level).

Then h = -16t^2 + 40t + 30 = 0

Applying the quadratic formula with a = -16, b = 40 and c = 30,

      -40 ± √( 1600 - 4[-16][30] )

t = -----------------------------------------

                  2(-16)

      -40 ± √ 3520

t = -------------------------

             -32

                                                                               -40 - 59.33

Only the positive t value makes sense.  It is t = ------------------

                                                                                      -32

t = 3.1 seconds

Answer: 300 feet

The biggest challenge in this problem is that it includes a fraction.

So, we can make this question easier by figuring out how many feet this train travels in 1 second.

If we know how far it traveled in 1 second, then we can quickly figure out how far it goes in 4 seconds.

Since the train travels 25 feet in 1/3 of a second, then it must travel 3 times that far in 1 second:  

25 feet x 3 = 75

We now know that this train must travel 75 feet in 1 second. Now we can solve for 4 seconds quite simply.

If the train travels 75 feet in 1 second, then how far will it travel in 4 seconds? We need to multiply 75 by 4 to get our answer:

75 x 4 = 300 feet

A high-speed train travels 25 feet in 1/3 second. In 4 seconds, the train will have traveled 300 feet

In question, the distance traveled by a high-speed train in 1/3 seconds is 25 feet.

Therefore, If a train travels 25 feet in 1/3 second, then it must travel 3 times the distance in 1 whole second.

That means,

25*3 = 75 feet

If a train travels 75 feet in 1 second, then the distance traveled in 4 seconds is;

75*4 = 300 feet

Hence, in 4 seconds, the train will have traveled 300 feet

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Answer:

PS = 7

k = 9

Step-by-step explanation:

RS = PQ                   Given

3x  - 7 = x - 1            Substitute algebraic terms. Subtract x from both sides

3x-x - 7 = x - 1 - x    Combine

2x - 7 = - 1                Add 7 to both sides.

2x - 7+7 = -1+7         Combine

2x = 6                      Divide by 2

2x/2 = 6/2

x = 3

Length of PS = x - 1 + x + 3x - 7

Length of PS = 5x - 8

Length of PS = 5*3 - 8

Length of PS = 7

=========================

f(x) = k - x^2

x = 2

f(x) = 5  is the given point

5 = k - x^2      Substitute for x^2

5 = k - 2^2      Expand

5 = k - 4          Add 4 to both sides.

5+4=k-4+4      Combine

k = 9