Mathematics High School

i need help with this

Answers

Answer 1

Answer:

it should be d.

Step-by-step explanation:

volume of a cone = π x r² x h

volume = π x 4.5² x 3.5

volume = π x 70.825

volume = 222.66 cubic metres

Related Questions

Find x
1. x + 10 < -7
2. -3x - 4 > 5
Help me please

Answers

x+10<-7

bring 10 to the other side

x<-10-7

x<-17

-3x-4>5

bring -4 to the other side

-3x>9

divide -3 at the other side, since it is negative it changes to less than

x<-3

The bottom of a rectangular swimming pool has an area of 512 feet2. If the length of the
pool is 16 feet, what is the width?

Answers

The width is 32
Divide 512 by 16

There are 8 girls and 5 boys on the math team. Which ratio correctly describes the relationship between boys and girls
on the math team?

Answers

Answer:

8:5

Step-by-step explanation:

Use the diagram to complete the statement.
measure of angle ECD

Answers

Answer:

∠ECD = 82°

Step-by-step explanation:

Alternate Interior Angles Theorem : when two parallel lines are cut by a transversal, the alternate interior angles are congruent. Alternate angles form a Z shape and are sometimes called "Z angles".

Therefore,

∠CDF = ∠GBC = 45°

∠CEF = ∠GAC = 53°

The sum of the interior angles of a triangle is 180°

⇒ ∠ECD + ∠CDF + ∠CEF = 180

⇒ ∠ECD + 45 + 53 = 180

⇒ ∠ECD = 180 - 45 - 53 = 82°

In ∆ABC

m<C be x

[tex]\\ \tt\longrightarrow x+53+45=180[/tex]

[tex]\\ \tt\longrightarrow x+98=180[/tex]

[tex]\\ \tt\longrightarrow x=180-98[/tex]

[tex]\\ \tt\longrightarrow x=82[/tex]

Now

m<ECD and m<ACB are opposite hence equal

How many positive integers x satisfy the inequality x^2 + x < 100?

Answers

Answer:

9 numbers

Step-by-step explanation:

10^2 + 10 = 110. This is also greater than 100.

Highest value of x is 9.

9^2 + 9 = 90.

Not sure if zero counts, but if it does, it'll be 10 numbers instead.

Hope this helps!

There are 9 positive integers x satisfy the inequality x² + x < 100.

What is Inequality?

Mathematical expressions with inequalities are those in which the two sides are not equal. Unlike to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

We have the inequality

x² + x < 100.

First take x= 1 then

1² + 1 = 2 < 100

Take x= 2

2² + 2 = 6 <100

Take x= 3

3² + 3 = 12 < 100

Take x = 4

4² + 4 = 20 < 100

Take x= 5

5² + 5 = 30 < 100

Take x =6, 7, 8, 9, 10 and 11

6² + 6<100

7² + 7<100

8² + 8<100

9² + 9 <100

10² + 10 > 100

So, there are 9 possible digits.

Learn more about Inequality here:

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What is the equation of the circle if the center is located at ( 2,-5) and the circumference is 10？

Answers

10pai？i dont know if its right

Randy works 50 weeks a year, averaging $500 a week in wages. He is offered a salaried position at $27,500 a year. If he accepts it, he will make ______. A. Less money b. More money c. The same amount d. Can’t tell Please select the best answer from the choices provided A B C D.

Answers

Answer:

Step-by-step explanation:

$500 a week x 50 weeks in a year = $25,000 a year

$27,500 > $25,000

HOPE THIS HELPED

(100 Points) Please answer (For) This question guys what is (Free) 1+1

Answers

Answer:

Step-by-step explanation:

1 + 1 = 2

Answer:

1 + 1 = 2

Step-by-step explanation:

1 + 1 = 2

basic addition as

2 + 2 = 4

or like

3 + 2 = 5

2 + 1 = 3

If one book is 55 dirham then what is the cost of 20 books

Answers

Answer:

1100 dirham

Step-by-step explanation:

If one book is 55 dirham, then you multiply that by 20 to get the total cost.

(If you are supposed to go from dirham to something else, then I'm sorry I don't know)

Hope this helps!

please help me!!!!!!!

Answers

Answer:

See below

Step-by-step explanation:

#14

Given:

m∠QPT = 42° and PR is its angle bisector

Angles QPR and TPR both are:

42/2 = 21°

Verify if the remaining angles are same.

m∠PQR = 180° - 21° - 58° = 101°

This is not same as ∠PTS:

101° ≠ 102°

This makes ∠PST ≠ ∠PRQ

Since corresponding angles are different, the triangles are not similar

#16

Given two right triangles.

Verify the corresponding sides have same ratio.

Find the ratio of longer legs:

LN/MN = 15/27 = 5/9

Find JN:

JN = √(JM² - MN²) = √(30.6² - 27²) = √207.36 = 14.4

Find the ratio of shorter legs:

LN/JN = 8/14.4 = 80/144 = 5/9

The triangles are similar by SAS since we have two sides similar and included angle is same (right angle)

Calculate how much more or less the muse will earn per month compared to selina, is selina salary is R234740

Answers

Answer:

um yes to the opreations sjut ad

"Point D has the same x-coordinate as the y-coordinate as B same same y-coordinate as the x-coordinate of point A." I need help on C.

Answers

Let's name the x-coordinates and y-coordinates

x-coordinate = abscicca y-coordinate = ordinate

So, According to question

Abscicca of Point D = Ordinate of Point BOrdinate of Point D = Abscicca of Point A

Abscicca of Point A = 2

Ordinate of Point B = -4

Thus,

Point D = (-4,2)

PLEASE HELPPP I can’t really understand this

Answers

Answer:

24°

Step-by-step explanation:

Let x = one complementary angle

Let y = the other complementary angle

As the sum of two complementary angles is 90°:

x + y = 90

If one angle is 18° more than two times the other angle:

y = 18 + 2x

Rewrite x + y = 90 to make x the subject:

x = 90 - y

Now substitute x = 90 - y into y = 18 + 2x and solve for y:

y = 18 + 2(90 - y)

⇒ y = 18 + 180 - 2y

⇒ 3y = 198

⇒ y = 198 ÷ 3 = 66

Now substitute found value of y = 66 into x + y = 90 and solve for x:

x + 66 = 90

⇒ x = 90 - 66 = 24

Therefore, the larger angle = 66° and the smaller angle = 24°

Solve for x and show all work.

Answers

[tex]\orange{\bigstar\underline{\underline {\pmb{\frak{ \purple{Required~Answer}}}}}}[/tex]

x = 21°

y = 29°

Explanation

[tex] \\ [/tex]

To find value of x.

[tex] \\ [/tex]

⇢ (3x - 3)° = 60°

[tex] \\ [/tex]

Reason:-{

They both are alternate interior angles.

What is alternate interior angles.?

When two lines are cut by a third line, a transversal.}

[tex] \\ [/tex]

⇢ 3x - 3° = 60

⇢ 3x = 60° + 3°

⇢ 3x = 63°

⇢ x = 63°/3°

⇢ x = 21°

[tex] \\ [/tex]

Verification:

[tex] \\ [/tex]

⇢ (3x - 3)° = 60°

⇢ (3 × 21 - 3)° = 60°

⇢ 63° - 3° = 60°

⇢ 60° = 60°

LHS = RHS

HENCE VERIFIED!

[tex] \\ [/tex]

To find value of y.

[tex] \\ [/tex]

⇢(4y + 4)° + 60° = 180°

[tex] \\ [/tex]

Reason:-{

The lines are in linear pair.

What is linear pair?

A pair of adjacent angles that form angles when two lines intersect}

[tex] \\ [/tex]

⇢ (4y + 4)° + 60° = 180°

⇢ (4y + 4)° = 180° - 60°

⇢ 4y + 4° = 120°

⇢ 4y = 120° - 4

⇢ 4y = 116°

⇢ y = 116/4°

⇢ y = 29°

[tex] \\ [/tex]

Verification:

⇢ (4y + 4)° + 60° = 180°

⇢ (4 × 29 + 4)° + 60° = 180°

⇢(116 + 4)° + 60° = 180°

⇢ 120° + 60° = 180°

⇢ 180° = 180°

LHS = RHS

HENCE VERIFIED!

__________________

~WindyMint♡

By using the equivalence of the formed angles, the solution is x = 41.

How to get X?

Note that the angle that is at the right of the equation with x, is equivalent to the bottom right angle, which measures 60°.

Then we will have that:

(3x - 3)° + 60° = 180°

Now we can solve that for x:

(3x - 3)° = 180° - 60° = 120°

3x = 120 + 3

x = 123/3 = 41

The solution is x = 41

If you want to learn more about angles, you can read:

https://brainly.com/question/17972372

help me with solving for x please

Answers

we can only add like terms, so if we want to find the term with x we will add 8x + 4x

This will give us 12x

We then want to add our constants, or “normal” numbers, which means we will add -3+3 which will give us 0

so our simplified will be 12x + 0 = 180

(For just this question it will be 12)

Hey there!

8x - 3 + 4x + 3 = 180°

COMBINE the LIKE TERMS

(8x + 4x) - (3 + 3) = 180°

8x + 4x - 3 + 3 = 180°

12x + 0 = 180°

12x = 180°

DIVIDE 12 to BOTH SIDES

12x/12 = 180/12

CANCEL out: 12/12 because that gives you 1

KEEP: 180/12 because it helps solve for the x-value

NEW EQUATION: x = 180/12

SIMPLIFY IT!

x = 15

Therefore, your overall answer is: x = 15

The answer to your given question is:

12x + 0 = 180

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Artaud noticed that if he takes the opposite of his age and adds 39 he gets the number 24. How old is Artaud?

Answers

Answer:

Step-by-step explanation:

Let 'a' represent Artaud's age. He notices the relationship ...

-a +39 = 24

If we add a-24 to both sides, we get ...

15 = a

Artaud is 15 years old.

Answer: 15 years old

Step-by-step explanation:

Let x be Artaud's age. Let the opposite of his age be -x

-x + 39 = 24

-x = 24-39

-x = -15 (multiply both sides by -1)

x = 15 years old

Line q passes through points (9,10) and (5,1), Line r is parallel to line q, What is the slope.

Answers

Answer:

slope = 9/4

Step-by-step explanation:

Slope is a ratio (looks like a fraction) It tells you the steepness or flatness of a line.

To find slope you subtract the y's (that's the second number in the ordered pairs; here it's 10 and 1) put that on top. Then subtract the x's and put that on the bottom (here 9 and 5)

Slope = 10-1 / 9-5

=9/4

Now, parallel lines have the same slope, so if one of the lines has slope 9/4, then the other line does too!

a) a = 12, b = 16, c = ?
b) a = 15, b = ?, c = 18
c) a = ?, b = 6, c = 15
d) a = 4.1, b = 3.3, c = ?
e) a = ?, b = 6.5, c = 12.2

Answers

Answer:

a)c=20

b)b=16

c)a=-3

d)c=2•5

e)a=0•8

Hector used 438 cups of wheat flour and some corn starch to replace cake flour in a recipe that required 5 cups of cake flour. How much wheat flour is used to replace each cup of cake flour?.

Answers

Answer:

438/5 and some corn starch = 1 cup

so 87.6 of wheat flour cups for one cake flour cup

Step-by-step explanation:

1 cake flour=x

x=438/5

x=87.6 and some corn starch but it's not mentioned how much so we can just say 87.6 wheat flour cups for 1 cake flour.

Your dog is digging a huge hole in the backyard. On average he removes 32 cubic feet of
dirt each hour, How much dirt will he have removed if he digs for three hours. Express
your answer as a simplified fraction. SHOW YOUR WORK.

Answers

Answer:

The answer will be 96

Step-by-step explanation:

32×3=96

____

Answer:

Step-by-step explanation:

Please help with mark brainliest if correct!!! ASAP

Answers

Answer:

2 mm: 1 m

Step-by-step explanation:

The scale drawing has the length of the soccer field as 232 millimetres.The actual field is 116 meters long.

That is, the same soccer field has different lengths in actual and in a map.

These scale and actual lengths must be related, and they are related to each other by what we call the scale ratio.

Scale ratio = dimensions in a drawing : actual dimensions

= 232mm : 116m

(we divide this by 116 to get 2)

= 2mm : 1m

What is the percent of change from 60 to 87?

Answers

Answer:

45% increase

Step-by-step explanation:

The new number (87) is bigger than the original number (60), so this is a percent increase.

To find the percent of change, which in this case is a percent increase, take the change amount and divide by the original, then convert to a percent.

Subtract to find the change.

87 - 60 is 27.

27 is the amount of change.

change/original

= 27/60

= .45

Times by 100 to change to a percent.

.45 × 100

= 45%

Drag each label to the correct location on the image.
Tom is throwing darts at a target. In his last 30 throws, Tom has hit the target 20 times. You want to know the estimated probability that exactly one out of the next three throws does not hit the target.

Categorize the simulations as correct or incorrect simulations of Tom’s scenario.

Answers

Each scenario can be used to simulate probability, and there are 3 correct scenarios and 2 incorrect scenarios in the list of options

How to categorize the simulations?

From the question, we have the following parameters:

Number of throws = 30Number of hits = 20

This means that the probability of hit is:

P(Hit) = 20/30

Simplify

P(Hit) = 2/3

Using the complement rule,

P(Miss) = 1/3

The above means that the simulation that represents the situation must have the following parameters:

P(Success) = 2/3P(Failure) = 1/3Number of experiments = 3

Using the above highlights, the correct scenarios are:

Rolling a die three times with numbers 1 to 4 representing a hitSpinner a spinner of 3 equal sections three times with two sections representing hitSpinner a spinner of 6 equal sections three times with four sections representing hit

Answers

Answer:

24.5 mi

Step-by-step explanation:

Each cm represents 9.8 miles, so 2.5 cm will represent a distance 2.5 times as far:

(2.5)(9.8 mi) = 24.5 mi

From Old Faithful to West Thumb is 24.5 miles.

A__ is two or more atoms joined together

Answers

Answer: c

Step-by-step explanation:

The answer Is C molecule

Work out
5/8
×
8/25
Give your answer in its simplest form

Answers

[tex]\cfrac{5}{8}\cdot \cfrac{8}{25}\implies \cfrac{5}{25}\cdot \cfrac{8}{8}\implies \cfrac{1}{5}\cdot 1\implies \cfrac{1}{5}[/tex]

Adjust the equations to create three different parabolas that pass through the points.

Answers

Answer:

Make all of the +/-2 values into -3,+4

Step-by-step explanation:

This is because the x intercept values for a parabola are where the equation equals zero, by making the equations -3 and +4, the equations will give zero values at -4 and plus 3 when they are set equal to zero, I can specify further if need be.

Banda, como le hago a lo de abajo? Ayuda!!

Answers

Answer:

2091.9

Step-by-step explanation:

multiply 4580 by 243 and then divide your answer by 532.

Which expression is equivalent to the expression below?
5(6v)+5v

Answers

Answer:

35v

Step-by-step explanation:

5(6v)+5v

[tex]5 \times 6v + 5v \\ 30v + 5 \\ combine \: the \: terms \\ = 35v[/tex]

Answer:

35v

Step-by-step explanation:

5 times 6v = 30v, then you add 5v which gives you 35v. Hope that helps :)

It is meaningful to compute the probability that a continuous random variable:_____.
a. is less than or equal to a number.
b. is exactly equal to a number.
c. is between two numbers.
d. is greater than or equal to a number.

Answers

Answer:

Step-by-step explanation:

is between two numbers.

is less than or equal to a number.

is greater than or equal to a number.

It is meaningful to compute the probability that a continuous random variable when it is between two numbers.

What is probability ?

Probability is a ratio of the number of favorable outcomes to the number of possible outcomes of the experiment.

What is continuous random variable ?

Continuous random variable is is one which takes an infinite number of possible values. A random variable is said to be continuous if it assumes a value that falls between a particular interval.

So, from the above mentioned statement we can assume that ;

The statement given in option [tex](c)[/tex] is correct .

Hence, we can say that it is meaningful to compute the probability that a continuous random variable when it is between two numbers.

To know more about Continuous random variable click here

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i need help with this​

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i need help with this