Calculate the height of 385cm of water
inside a cylinder of diameter 7cm.
​

Answer:

All of the values that can go into a relation or function (input) are called the domain. The domain is the set of all first elements of ordered pairs (x-coordinates). The range is the set of all second elements of ordered pairs (y-coordinates). Only the elements "used" by the relation or function constitute the range.

Answer:

Step-by-step explanation:

Each element of the domain connects to no more than ONE element of the range.  More than one such connection indicates a relation, not a function.

Answer:

D.

Step-by-step explanation:

Answer:

Mean = 203.167

Step-by-step explanation:

Mean = [tex]\frac{sum of observations}{total no. of observations}[/tex]

Mean = [tex]\frac{153+230+354+38+180+264}{6}[/tex]

Mean = [tex]\frac{1219}{6}[/tex]

Mean = 203.167

Answer:

x = 5.5 to the nearest tenth.

Step-by-step explanation:

Here we have a right triangle with one angle (65 degrees) given.  Side x is the "side adjacent to the angle" and is to be found.  The hypotenuse is 13.

The cosine function makes use of these three knowns:  the angle, the hypotenuse and the adjacent side.  Thus:

cos 65 degrees = adj / hyp = x / 13, or

x = 13 cos 65

Evaluating this on a calculator, we get  x = 5.49, or x = 5.5 to the nearest tenth.

Answer:

B and D

Step-by-step explanation: i used my brain

Answer:

B and D

Step-by-step explanation:

Answer:

Option D is true. ( graph of a vertical line through the point (negative 4,0)

Step-by-step explanation:

Answer:

-3.21

Step-by-step explanation:

Answer:

base= 5 in

height  = 12 in

Step-by-step explanation:

Area = base x height

Base = b

Height = b+7

So:

60= b ( b+7)

60 = b^2 +7b

0 = b^2 +7b -60

a= 1 ; b=7 ; c=-60

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  

Replacing with the values given:  

x =[ -7 ± √(7)²-4(1)-60] /2(1)  

x = [ -7 ± √49 +240] /2  

x = [ -7 ± √289] /2  

x = [ -7 ± 17] /2  

Positive:  

x = [ -7 +17] /2 = 5

So:  

b= 5 in ( base)

Height = b+7 = 5+7 = 12 in

Feel free to ask for more if needed or if you did not understand something.  

Answer:

C is not a function

Step-by-step explanation:

Answer:

The answer is D and E

Step-by-step explanation:

- D is not a function because x in (x,y) coordinate sets, 1 is being repeated over and in this case 1 is repeated 4 times.

- E is not a function because x in (x,y) coordinate sets, 6 has been repeated 2 times; (6,2), and (6, -1).

Answer: B

Step-by-step explanation:

-3x^2-9xi+9ix-27

-3x^2-27

The equivalent expression is (-3x+ 9i)(x+ 3i).

Mathematical statements are called expressions if they have at least two terms that are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.

A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation.

Given:

-3x² - 27

First, (-3x - 9i)(x+ 3i)

= -3x² - 9ix - 9ix -27i²

= -3x² -18i + 27

Second, (-3x+ 9i)(x+ 3i)

= -3x² -9xi + 9ix + 27i²

= -3x² - 27

Third, (-3x+ 3i)( x+ 9i)

= -3x² -27ix + 3ix + 27i²

=-3x² -24ix - 27

Fourth, (-3x - 3i)( x- 9i)

= -3x² - 27ix - 3ix -27i²

= -3x² - 30ix + 27

Hence, the equivalent expression is (-3x+ 9i)(x+ 3i).

Learn more about expression here:

https://brainly.com/question/14083225

#SPJ5

Answer:

[tex]P(t)=89000(0.944)^{t/2.8}[/tex]

Step-by-step explanation:

Since the population decreases by a constant factor, the growth will be modeled by an exponential decay function.

The population at time t will be:

[tex]P(t)=P_0(1-r)^{(t/k)}$ where:\\Initial Population, P_0=89,000\\$Decay Factor, r=5.6\%=0.056\\Period, k=2.8 Months\\Time in months =t[/tex]

Substituting these values, we have:

[tex]P(t)=89,000(1-0.056)^{t/2.8}\\P(t)=89000(0.944)^{t/2.8}[/tex]

Therefore, a function that models the population of the narwhals t months since the beginning of Chepi's study is:

[tex]P(t)=89000(0.944)^{t/2.8}[/tex]

Answer:

D: (1, 4)

Step-by-step explanation:

You can either solve by substitution or elimination. If you are timed, the fastest way is to guess and check (plug-in the answer choices)

I will be using substitution to solve this:

Step 1: Since you have y already, you can set them equal to each other

x+3 = 3x+1

3 = 2x +1

2 = 2x

x = 1

Step 2: Now you have x, plug x into one of the original equations. In this case, I will use the first one

y = 1 + 3

y = 4

Step 3: Now write your answer as a coordinate plane point

x = 1, y = 4

(1, 4)

Answer:

your answer is 11 feet, or 132 inches.

Step-by-step explanation:

one bracelet needs 22 inches, but he's making six, so multiply.

you should get 132, which can be divided by 12 to see how many feet you need, since this is what the question requires.

Hope I Helped!

Answer: A

Step-by-step explanation:

Percentage error is error divided by actual value multiply by 100. That is,

%error = error/actual value × 100

If Jade measured the height of an art frame as 5.23 feet, where the actual height was 6 feet. Then,

Error = 6 - 5.23 = 0.77

Substitute error = 0.77 and the actual value = 6 into the formula

%error = 0.77/6 × 100

%error = 12.83 %

Therefore, the percent of error in Jade’s measurement is 12.83%

Answer:

12.83

Step-by-step explanation:

took the test got a 100% percent surprisingly  ummmm anywaysss....

Answer:

x=7over4

Step-by-step explanation:

The answer is x=-4over7

Answer:

x=5

Step-by-step explanation:

x-3x can be simplied to -2x and 3-9 can be simplied to -6

-2x+4=-6

Substract 4 from both sides

-2x=-10

Divide both sides by -2

x=5

Answer:

[tex]x=5[/tex]

Step-by-step explanation:

[tex]x-3x+4=3-9\\x-3x+4=-6\\-2x+4=-6[/tex]

Subtract 4 from both sides

[tex]-2x+4-4=-6-4\\-2x=-10[/tex]

Multiply both sides by -1

[tex]2x=10[/tex]

Divide both sides by 2

[tex]x=5[/tex]

Answer:

See Explanation Below

Step-by-step explanation:

Your question isn't clear; However, I'll solve in two ways

1. Diameter = 14 cm

2. Radius = 14 cm

When Diameter = 14 cm

Given

[tex]Area = \pi r^2[/tex]

[tex]Diameter = 14cm[/tex]

Required

Calculate the area of the circle

First, the radius has to be solved;

[tex]Radius = \frac{1}{2} Diameter[/tex]

[tex]Radius = \frac{1}{2} * 14cm[/tex]

[tex]Radius = 7cm[/tex]

Using the given formula;

The area is as follows

[tex]Area = \pi r^2[/tex]

[tex]Area = 3.14 * 7^2[/tex]

[tex]Area = 3.14 * 49[/tex]

[tex]Area = 153.86cm^2[/tex]

When Radius = 14 cm

Given

[tex]Area = \pi r^2[/tex]

[tex]Radius = 14cm[/tex]

Required

Calculate the area of the circle

Using the given formula;

The area is as follows

[tex]Area = \pi r^2[/tex]

[tex]Area = 3.14 * 14^2[/tex]

[tex]Area = 3.14 * 196[/tex]

[tex]Area = 615.44cm^2[/tex]

Answer:

24

Step-by-step explanation:

Equilateral has 3 angles that add up to 180, and all angles are equal

3(2x+12) = 180

6x+36 = 180

180-36 = 6x

144 = 6x

24 = x

Answer:

2x+12=60

2x=60-12

2x=48

x=24

Step-by-step explanation:

Equilateral triangles have equivalent angles each of 60°

Answer:

Option 1

Step-by-step explanation:

1.320 is always greater than 1.302

Answer:

Step-by-step explanation:

1.320 > 1.302

In both numbers, tenth term is same. so move to hundredth term

In 1.320, hundredth term is 2 & in 1.302 hundredth term is 0.

So, 1.320 is greater

Answer:

Y=2, E=9, A=1, R=0

Step-by-step explanation:

YYYY starts from thousand

EEE starts from hundred

AA starts from tens

R is a units

So we can have

1000Y+100Y+10Y+Y-100E-10E-E+10A+A-R=1234

1111Y - 111E + 11A - R=1234

Y cannot be greater than 2 and it can't be 1 either because

if Y is 1, we will have a total of one thousand one hundred and eleven (1111) which is less than one thousand two hundred and thirty-four (1234) as from the answer in the question

So, it is safe to say Y=2 in order to have two thousand two hundred and twenty-two(2222)

This means that Y must be 2:

2222-111E+11A-R=1234

In this case, E would have to be 9 to make it possible for this to have a solution, by bringing it down to 1223.

YYYY-EEE

2222-999=1223

1223+11A-R=1234

1223+11=1234

This means that A must be 1 and that R must be 0.

2222

- 999

+11

-0

=1234

Answer:

3

Step-by-step explanation:

1/2(8+6)-2=4+x-2

1/2*14 -2 = 2+x

7-2=2+x

5=2+x

x=5-2

x=3

Step-by-step explanation:

Is this correct

HAVE A GOOD DAY!

Answer:

60% = [tex]\frac{3}{5}[/tex]

75% = [tex]\frac{3}{4}[/tex]

84% = [tex]\frac{21}{25}[/tex]

65% = [tex]\frac{13}{20}[/tex]

Step-by-step explanation:

60% = [tex]\frac{3}{5}[/tex] because 3 ÷ 5 = 0.6

75% = [tex]\frac{3}{4}[/tex] because 3 ÷ 4 = 0.75

84% = [tex]\frac{21}{25}[/tex] because 21 ÷ 25 = 0.84

65% = [tex]\frac{13}{20}[/tex] because 13 ÷ 20 = 0.65

Hey there! :)

Answer:

60% <--> 3/5

75% <--> 3/4

65% <--> 13/20

84% <--> 21/25

Step-by-step explanation:

When comparing fractions to percentages, make each fraction out of 100:

[tex]\frac{3}{5} = \frac{60}{100}[/tex]    = 60%

[tex]\frac{3}{4} = \frac{75}{100}[/tex]    = 75%

[tex]\frac{13}{20} = \frac{65}{100}[/tex]   = 65%

[tex]\frac{21}{25} = \frac{84}{100}[/tex]   = 84%

Answer:

Step-by-step explanation:

slope = -6

y-intercept=0

Answer:

Slope = m = -6

Step-by-step explanation:

Compare the given equation with slope-intercept form as:

y = mx + b

y = -6x + 0

m = -6 and b = 0

Best Regards!

Answer:

A, C, and D

Step-by-step explanation:

By substituting the values of each of the points into the inequality, you can determine that A, C, and D are the correct answers.

Answer:

Domain: {9, 8, 7,-5} Range: {1,-3, 5, 3}

Step-by-step explanation:

The domain is the input values or the x values

The range is the output values

This is a functions since no inputs go to more than one output

Domain: {9, 8, 7,-5} Range: {1,-3, 5, 3}

Answer:

D = {-5, 7, 8, 9}

R =  {-3, 1, 3, 5}

Step-by-step explanation:

Since 'C' does not repeat any domain values, it is a function.

The x-values of a function are the domain.

{(9, 1) (8,-3) (7,5) (-5,3)}

The domain is {-5, 7, 8, 9}.

The y-values of a function is the range.

{(9, 1) (8,-3) (7,5) (-5,3)}

The range is {-3, 1, 3, 5}.

Answer:

243,729

Step-by-step explanation:

You just need to multiply each number by 3.

I hope this help you :)

Answer:

243, 729

Explanation:

To solve this problem we must first understand what the pattern is in the sequence. Once we understand the pattern, we can then apply it to the final known term to find the next two terms.

Take a look at the sequence given:

1, 3, 9, 27, 81,...

Let's start by figuring out how they got the second term in the sequence. To do that, identify what basic operation and number must be applied. This will reveal the pattern.

1 - first term

3 - second term

1 ? ? = 3

1 × 3 = 3

So, this means the sequence multiplied three to get the next term. Therefore, the pattern should be 'multiply three' to get the next term. Just to be sure the pattern we found is correct, apply it to the given sequence.

1, 3, 9, 27, 81,...

1 × 3 = 3

3 × 3 = 9

9 × 3 = 27

27 × 3 = 81

So, since 'multiply three' every time gives us the next term, the pattern is correct.

Finally, let's continue the pattern to find the next two terms.

81 × 3 = 243

243 × 3 = 729

Therefore, the next two terms in the sequence are 243, 729.

Answer:

y= -3x+3/2

Step-by-step explanation:

Write it in the form of y=mx+b because that is the y-intercept form.

So just plug it in.  y=-3x+3/2

Answer

y= -3x+3/2

Step-by-step explanation:

Answer:

advance tickets $30.00

same day tickets $35.00

Step-by-step explanation:

1. In this equation, you are trying to find two values so you must use system of equations. Your two equations would be:

40x +20y = 1900

x + y = 65

x represents the price of advance tickets and y represents the price of same day tickets.

2. Solve the equation by performing elimination using multiplication. Multiple one equation by a constant to get two equations that contain opposite terms.

40x + 20y = 1900

-40(x + y = 65) → -40x + -40y = -2600

3. Add the equations, eliminating one variable. (add -40x + -40y = -2600 to 40x + 20y = 1900)

   40x + 20y = 1900

+ -40x + -40y = -2600

Results in: -20y = -700

Solve for y by dviding both sides by -20.

y = 35

4. Substitute the solved value into one of the equations and solve for the remaining variable.

x + 35 = 65

Subtract 35 from both sides to solve for x.

x = 30

The advance tickets were $30.00 and the same day tickets were $35.00.

Answer:

jenny got 15 pair of shoes

her bro got 10 pairs of shoes

Step-by-step explanation:

Jenny: 15 shoes

Brother: 10 shoes