Mathematics Middle School

The radius of a the head of a snowman is about 2/3 times the radius of the base of the snowman. If the surface area of the base of the snowman is 1800 square centimeters, what is the approximate surface area of the snowman's head?

Answers

Answer 1

Answer:

The approximate surface area of the snowman's head is 125.33 sq.cm.

Step-by-step explanation:

Formula of surface area =$4 \pi r^2$

We are given that The surface area of the base of the snowman is 1800 square centimetres

So,$4 \pi r^2 =1800$

$4 \times \frac{22}{7} \times r^2 = 1800 \\r^2 = \frac{1800 \times 7}{22 \times 4}\\r=\sqrt{\frac{1800 \times 7}{22 \times 4}}\\r=11.96$

The radius of a the head of a snowman is about 2/3 times the radius of the base of the snowman

So, Radius of head = $\frac{2}{3} \times 11.96 =7.97$

Surface area of snowman's head=$4 \times \frac{22}{7} \times 9.97=125.33 cm^2$

Hence the approximate surface area of the snowman's head is 125.33 sq.cm.

Related Questions

Find the length of CD.

Answers

Answer:

The length of CD is 9 mm.

I think the answer is 9mm

Be free to ask more questions:)))

In triangle JKL, < K Measures 50 and < J is congruent to

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The angle measures of J and L are given as follows:

m < J = m < L = 65º.

How to obtain the angle measures?

To obtain the angle measures, we must considering that the sum of the measures of the internal angles of a triangle is of 180º.

The internal angles for this problem are given as follows:

<J.<K.<L.

Angles J and L are congruent, meaning that they have the same measure, which is obtained as follows:

50 + x + x = 180

2x = 130

x = 65º.

Missing Information

The complete problem is:

In triangle JKL, < K Measures 50 and < J is congruent to <L. What are the measures of J and L?

More can be learned about angle measures at https://brainly.com/question/25716982

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HELP ASAP IM IN TR$OUBLE NOWWWWWW
A quadratic function models the graph of a parabola. The quadratic functions, y = x2 and y = x2 + 3, are modeled in the graphs of the parabolas shown below.

Determine which situations best represent the scenario shown in the graph of the quadratic functions, y = x2 and y = x2 + 3. Select all that apply.

From x = -2 to x = 0, the average rate of change for both functions is negative
For the quadratic function, y = x2, the coordinate (2, 3) is a solution to the equation of the function.
The quadratic function, y = x2 + 3, has an x-intercept at the origin
The quadratic function, y = x2, has an x-intercept at the origin
From x = -2 to x = 0, the average rate of change for both functions is positive
For the quadratic function, y = x2 + 3, the coordinate (2, 7) is a solution to the equation of the function.

Answers

Answer:

1. true 2. false 3, false 4.true 5.false 6.true

Step-by-step

here's the link on brainly for that answer

https://brainly.com/question/10606041?utm_source=android&utm_medium=share&utm_campaign=question

pls help look at attached image choose any problem u would like to do this is for my middle school math class again pls help and thanks

Answers

Can you take a picture again I can’t see anything

This is the answer I got for number 2 hope it helps you

Easy math question, earn points! Quickest answer gets points.

Answers

Step-by-step explanation:

an = 3* (sqrt 2)^(n-1) = 192 solve for n

sqrt(2)^(n-1) = 64

n-1 = log 64 / log (sqrt 2) = 12

n = 13

There are 13 word word

PLEASE HELP! DUE TODAY!!

Answers

Answer: D. 56 units

Step-by-step explanation:

To find the perimeter, we will count the units all around the outline of the outside of the figure. See attached.

➜ Note that the scale of this coordinate plane is by 2's, not 1's.

56 units
Calculate the perimeter by counting the quarters around the outside of the shape

HELPPP!!! PLZ I AM GIVING 15 POINTS!!!!!!!!

what property is shown in the equation?
7x/1 = 7x (7x/1 is supposed to be a fraction, / is supposed to be the line)
reciprocal property, identity property of division, negative one property of division, division into zero property

what property is shown in the equation?
-53 ÷ 1 = -53
negative one property of division, identity property of division, division in zero property, reciprocal property

Answers

Answer:

all real numbers

Step-by-step explanation:

Answer:

x=1

Step-by-step explanation:

Anything divided by one gives itself.

help me algebra are and circumference pls

Answers

The question is basically asking you how much area of the yard the pool takes up, in essence the area the pool takes up.

So we are going to find the area of the pool.

Area of pool is = pi x r^
= 3.14 x 7^2
= 153.86 ft^2

Therefore the pool takes up 153.86 ft^2 of space.

Answer:

43.96

Step-by-step explanation:

You do 2*3.14*7

A boat went downstream and traveled a distance in 3 hours. the return took 3 hours and 40 min. find the speed of the water current of the speed of the boat in still water is 18

Answers

Answer:

Step-by-step explanation

Banana Cupcakes
makes 10 cupcakes

1 cup granulated sugar

cup vegetable oil

1 large egg

4 tablespoons sour cream

2 medium-sized ripe bananas, mashed

1 cups all-purpose flour

1 teaspoon baking soda

teaspoon salt

1 teaspoon vanilla extract

pinch of nutmeg

You will use the recipe above to answer the following questions:

This recipe serves 10, but you need to serve 30. What number will you need to multiply the amount of each ingredient by to adjust the recipe? How did you determine this number?
How much vegetable oil do you need for 30 cupcakes?
How much flour do you need for 30 cupcakes?
What is the difference in the amount of vanilla extract you would need for 30 cupcakes?
What is the difference in the amount of salt you would need for 30 cupcakes?
In the real world, even though you make adjustments to a recipe to accommodate the number of people you need to serve, you sometimes round the amount of an ingredient instead of using an exact amount. Which ingredient would it make more sense to round rather than coming up with the exact amount? Why?

Answers

Answer: Hey give me 1 hour and ill answer it I'm doing odessyware rn so Ill get back to you later appreciate yo patients.

Step-by-step explanation:

Here we have a recipe that works for 10 serves.
Then, if we want to make 30 servings, we need to use that recipe 3 times. (because x*10 = 30, then x = 30/10 = 3)
This would be equivalent to multiply each ingredient by 3.
for 30 cupcakes we need:
3 cups of vegetable oil.
3 cups of all-purpose flour
(because for each one of these ingredients we needed only 1 cup to make 10 cupcakes).
for 10 cupcakes we need 1 teaspoon of vanilla.
for 30 cupcakes we need 3 teaspoons of vanilla, the difference is 3 - 1 = 2.
So the difference is 2 teaspoons.
About which quantities we should round are those where we may have mixed numbers or big numbers.
For example, we have 4 tablespoons of sour cream for 10 servings, then for 30 servings we should have:
3*4 = 12 tablespoons.
We could round this down to 10 tablespoons.

Hope this helped

I almost broke my brain doing this so can you give me brainliest answer please thank you

Please help thankyou if you helped

Answers

Answer:

F and A

Step-by-step explanation:

They both can be rounded to 3.6

Determine the area of the shape.

Answers

Answer: 23.04

Step-by-step explanation:

2.0*2.0= 4.0

2.4*2.4= 5.76

4.0*5.76= 23.04

Answer: The area of the given shape is 9.734 meter square

Step-by-step explanation:

The given shape is a square with 4 sides of equal dimensions "a",

Area of Square = Square of its side "a"

Here, a = Hypotenuse of the inner triangle

Step 1: Get the hypotenuse value of the inner right triangle as the base and height dimensions of the right triangle is given.

Step 2: By using Pythagoras theorem,

Square of the base + Square of the height = square of the Hypotenuse

(2.4)^2 + (2.0)^2 = 9.76

Therefore the value of the hypotenuse = 3.12m

The area of the square = 9.734 meter square.

Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

Help please this is 6th grade math

Answers

Answers:

Blank 1: 4

Blank 2: 9.03

Blank 3: 14.19

Blank 4: 17

Answer:

if i am not wrong is:

1) 4

2) 9.03

3) 14.19

4) 17

Step-by-step explanation:

you need to figurate out how much does only one would be so you can just do the operations for the rest.

All rules of exponents put in one problem, and answer. (2 examples please)
The rules are product rule, quotient rule, power rule, negative rule, power of a product rule, power of a wuotient rule, and zero rule

Answers

Answer:

Step-by-step explanation:

Negative rule= --=+

++=-

-+=-

power rule : 1^2+1^3=1^5 because when multiplying squared numbers if you're adding you add don't multiply unless it's in a bracket.

Answer:

Step-by-step explanation:

Negative rule= --=+

++=-

-+=-

power rule : 1^2+1^3=1^5 because when multiplying squared numbers if you're adding you add don't multiply unless it's in a bracket.

Please help 25 points

Answers

Answer:the answer is 36

Step-by-step explanation:i just guessed

it is 5 because 7x5 is 35

Select the correct answer Which statement about the inequality 2 1/5 < 2 3/5 is true?

Answers

Answer: We are given inequality 2(1)/(5) < 2(3)/(5). This can be read as : 2(1)/(5) is less than 2(3)/(5). Therefore, 2(3)/(5)

Step-by-step explanation:

This is Expert Verified Answer We are given inequality 2(1)/(5) < 2(3)/(5). This can be read as : 2(1)/(5) is less than 2(3)/(5).

Which scenario can be modeled by the linear function
y = -15x + 500?

A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.

B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.

C. A carpet cleaning service charges $500 plus an additional $15 for every hour.

D. A membership fee for a movie streaming service is free, but each rental costs $15.

Answers

I think the answer is C

The answer is a because it is able to be modeled unlike the rest

Jada has a scale map of Kansas that fits on a page in her book. The page is 5 inches by 8 inches. Kansas is about 210 miles by 410 miles. Select ALL scales that could be a scale of the map.

A.) 1 inch to 1 mile
B.) 1 centimeter to 1 kilometer
C.) 1 inch to 1 kilometer
D.) 1 foot to 100 miles
E.) 1 centimeter to 200 kilometers
F.) 1 inch to 100 miles
G.) 1 centimeter to 1000 kilometers

I need an answer ASAP!! Please help me :')

Answers

Answer: The answer are (E), (F) and (G).

Step-by-step explanation: Given that Jada fits a scale map of kansas on a page in her book. The dimension of the page is 5 inches by 8 inches and kansas is about 210 miles by 410 miles. Given options are

(A) If we take 1 inch to 1 mile, then 5 inches will be 5 miles and 8 inches will be 8 miles, which are less than 210 and 410 miles respectively. So, this scale will not work.

(B) If we take 1 cm to 1 km, that is, .39 inches to .69 miles i.e., 1 inch to 1.76. So, 5 inches will be 8.8 miles and 8 inches will be 14.8 miles, which are again less than 210 and 410 miles. Hence, this scale will also not work.

(C) If we take 1 inch to 10 miles, then 5 inches will be 50 miles and 8 inches will be 80 miles, which are less than 210 and 410 miles respectively. So, this scale will not work.

(D) If we take 1 ft to 100 miles, i.e., 1 inch to 8.33 miles, then 5 inches will be 41.65 miles and 8 inches will be 66.64 miles, which are less than 210 and 410 miles respectively. So, this scale will also not work.

(E) If we take 1 cm to 200 km, i.e., 1 inch to 353.8 miles, then 5 inches will be 1769 miles and 8 inches will be 2830.4 miles, which are greater than 210 and 410 miles respectively. So, this scale will work.

(F) If we take 1 inch to 100 miles, then 5 inches will be 500 miles and 8 inches will be 800 miles, which are greater than 210 and 410 miles respectively. So, this scale will also work.

(G) If we take 1 cm to 1000 km, i.e., 1 inch to 1769 miles, then 5 inches will be 8845 miles and 8 inches will be 14152 miles, which are again greater than 210 and 410 miles respectively. So, this scale will work.

So, the correct options are (E), (F) and (G).

E, F, g, are your answer

The value of a car decreases over time. This year, Faaria's car is worth $22000. If the value of Faaria's car decreases by 8%, what will her car be worth next year?

Answers

20240 after the first year

Answer: 20000

Step-by-step explanation:

Make a histogram for drivers' ages using the data from the table below.

Driver’s Ages
Age Frequency
17-19 8
20-22 7
23-25 9
26-28 4

Answers

It should be like this since each column has to go up to the frequency number.. pretty simple

The histogram shows the distribution of the age and the frequencies

How to plot the histogram?

The dataset is given as:

Age Frequency

17-19 8

20-22 7

23-25 9

26-28 4

The age would be plotted on the x-axis, while their frequencies on the y-axis.

So, we have:

x y

17-19 8

20-22 7

23-25 9

26-28 4

See attachment for the histogram

Answers

Answer:

it would be 609.47

Step-by-step explanation:

the answer is 609.47

15 x 2/4 A. 7 2/4

B. 30/60

C. 17/4

D. 3/4

Answers

Nearly positive it’s A. I used a calculator and that’s what I got :)

technically it’s 7.5, but in simplified terms it’s A. to help out, if you simply 2/4 it is 1/2. if you multiply anything by 1/2 it is automatically half of the number you originally multiplied with. 15 -1/2 is the same as 15x1/2

Can someone pls help? ty!

Answers

Answer:

Step-by-step explanation:

when you have an exponent of zero your answer will always be 1.

1 anything to the 0 power is 1

Find THe QUADRATIC equation 100 POINTS PLS HELP: (0,6),(1,6.5),(2,8),(3,10.5),(4,14)

Answers

Answer:

y = 1/2x^2 +6

Step-by-step explanation:

The quadratic regression function of a calculator or spreadsheet is useful for this purpose. It shows you the equation is ...

y = 1/2x^2 +6

_____

Alternate solution

Another way to approach this is to look at first and second differences of the y-values.

Sequence of y-values:

6, 6.5, 8, 10.5, 14

Sequence of first differences:

0.5, 1.5, 2.5, 3.5

Sequence of second differences:

1, 1, 1, 1

The leading coefficient of the quadratic is half the value of the second differences: a = 1/2. The constant in the quadratic is the y-intercept, the value when x=0. The first point gives that as 6.

Now, you can check some other point to see what the linear term coefficient might be:

y = 1/2x^2 +bx +6

For x=2, this is ...

8 = 1/2(2^2) +b(2) +6 = 8 +2b . . . . . substitute (x, y) = (2, 8), simplify

0 = 2b ⇒ b = 0

Then the quadratic is ...

y = 1/2x^2 +6

_____

Additional comment

You may not know the relation between second differences and the leading coefficient. The most general way to solve this is to write three equations in the unknown coefficients. Since y has integer values for x=0, 2, 4, you may want to use these. For (x, y) = (0, 6), (2, 8), and (4, 14), you have ...

y = ax² +bx +c

6 = 0a +0b +c8 = a(2²) +b(2) +c14 = a(4²) +b(4) +c

After finding c=6 in the first equation, you have two equations in 2 unknowns:

2 = 4a +2b ⇒ 2a +b = 18 = 16a +4b ⇒ 4a +b = 2

The solution to these is a=1/2, b=0, as above.

Find THe QUADRATIC equation 100 POINTS PLS HELP: (0,6),(1,6.5),(2,8),(3,10.5),(4,14)

If the temperature increases by 5°C every 3 minutes, how long will it take for
the temperature to reach 48°C?

Please answer with a solution.
Reporting if you don't answer it seriously.

Answers

Answer: 28.8

Solution:
Since it increases 5 C every 3 minutes you can divide 48/5 and then multiply it by 3 to get 28.8.

which equation could be represented by the number line

< I I I I I I * l l l l l * l l l l l l > arrow going left A. -6 + (-1)=-7 B. 1+ (-7) = -6 C. -7 + 6 = -1 D. -6 + 7 = 1

Answers

9514 1404 393Answer: A. 3+ (-4) = -1Step-by-step explanation:The arrow indicates a subtraction of 4, or an addition of -4. The only equation containing such a subtraction or addition is choice A.

Mr. Winter makes a milkshake with 3 scoops of chocolate ice cream and 2 cups of milk. Ms. Haddad makes hers with 4 scoops of ice cream and 3 cups of milk. Who's milkshake has a stronger chocolate flavor and why?

Answers

mr,winter would make a milshake that is stronger in chocolate flavor.

His is bc his is chocolate hers is just ice cream

PLEASE SHOW HOW YOU HOW OYUR ANSWER!!!!

18≥5K+4K

Answers

Answer:

k≤2

Step-by-step explanation:

18≥5k+4k

Step 1: Simplify both sides of the inequality.

18≥9k

Step 2: Flip the equation.

9k≤18

Step 3: Divide both sides by 9.

/9≤18/9

k≤2

The solution to the inequality 18≥5K+4K is K ≤ 2.

To solve the inequality 18 ≥ 5K + 4K, we can combine the like terms on the right-hand side and simplify:

18 ≥ 5K + 4K

Combining the like terms:

18 ≥ 9K

We want to isolate the variable K on one side of the inequality.

Divide both sides of the inequality by 9:

(18/9) ≥ (9K/9)

2 ≥ K

Therefore, the solution to the inequality is K ≤ 2.

To learn more on Inequalities click:

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The international space station has small cupboards that are used for storage. A cupboard is drawn below (redrew by me cause I'm using chrome book and computer)
1. What is a formula that can be used to find the area of one triangular section of the door?
2. How do you know the formula will work?

Answers

Answer:

$A=\frac{ab}{2}$ or $A = a *\sqrt{c^2-a^2} /2$

Step-by-step explanation:

Depending on the values you take depends on the equation you would use to solve for the area of a right triangle(the first answer accounts for measuring both arms(the sides connected to the 90 degree angle(a and b)), where as the second answer accounts for using the hypotenuse and one of the arms). That means that a 90 degree angle is involved, or as illustrated here, the square in the bottom right corner. If this were a non-right angle triangle, a different formula utilizing the height of the triangle would be used instead.

$A = \frac{h_{b}+b}{2}$

Since the right angle exists, a height is already given using one of the arms of the triangle in its place. We can also confirm it is a triangle by adding up all degrees of the triangle, in which it would equal 180 degrees confirming it is indeed a triangle as well.

By using trigonometric relations we will see that the area is:

How to find the area of one triangular section?

Remember that the area of a right triangle is equal to the product between the cathetus divided by 2.

Sadly, here we don't have the measures of any sides of the triangle, so getting the actual area is impossible, but if we assume that some dimension is given (like the height, let's say that is h).

h is the cathetus adjacent to the 60° angle, then the other cathetus (the bottom one) is given by:

tan(60°) = x/h

x = tan(60°)*h

Then our two catheti are h and tan(60°)*h.

This means that the area will be:

Here we only used trigonometric properties, so this area will work for any height given (always that the value of h is the cathetus adjacent to the 60° angle).

If you want to learn more about right triangles:

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