Can someone help me find surface area

Answer:

13.14cm²

Step-by-step explanation:

First we find the area of the rectangle, based on the diagram, this rectangle measures 10cm by 1cm, or 10cm².

After that we find the area of the half circles, In this case I'm going to assume the half circles have the same diameter. The diameter in 2cm, and the radius is half of the diameter. Sine you need the radius to find the area of the circle we will divide the diameter by 2. So 2 ÷ 2 is 1. Then with this radius we will use the formula for the area of a circle, πr².

3.14(1)²

3.14cm²

In most half circles you would divide by two cince this formula calculates the area of a full circle, but two identical half circles is the same as one full circle.

Add the area of the half circles to the area of the rectangle and you get your answer!

10cm²+3.14cm²=

13.14cm²

Answer:

4

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

The cube root of 64 is the number which when multiplied by itself three times gives the product as 64. Since 64 can be expressed as 2 × 2 × 2 × 2 × 2 × 2. Therefore, the cube root of 64 = ∛(2 × 2 × 2 × 2 × 2 × 2) = 4.

The cube root of 64 is 4.

Before solving the question, let's understand the concept of cube root.

The cube root of a number is the value obtained by multiplying it by itself three times or thrice. When we multiply 3 by itself three times, we get 3 x 3 x 3 = 27 = 3³, so the cube root of 27 is 3. Thus, we can say that the cube root gives a value that is basically cubed.

The cube root is denoted by ∛

Now, we will find the cube root of 64.

Firstly, we have to find factor 64.

64 = 2 × 2 × 2 × 2 × 2 × 2.

64 = ∛4³

64 = 4

Therefore, the cube root of 64 is 4.

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If we’re doing the same homework, I’d say 129 cm? But I don’t know what the question is without a picture. Sorry!

The number of buckets which will contain the water of oceans is required.

The number of buckets that will be required is \(7\times 10^{19}\)

Total amount of water held in the oceans = \(1.4\times 10^9\) cubic kilometers

Total amount of water in one bucket = 20000 cubic centimeters

The conversion factor of cubic centimeter to cubic kilometer is

\(1\ \text{cubic centimeter}=10^{-15}\ \text{cubic kilometer}\)

\(20000\ \text{cubic centimeter}=2000\times 10^{-15}\ \text{cubic kilometer}\)

Let n be the number of buckets

\(n\times 20000\times 10^{-15}=1.4\times 10^9\\\Rightarrow n=\dfrac{1.4\times 10^{9}}{20000\times 10^{-15}}\\\Rightarrow n=7\times 10^{19}\)

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Answer:

the answer is 220 skate boards left to sell

Step-by-step explanation:

Answer:

A. 320

B. 100

C. 80

D. 25

F. 80

Step-by-step explanation:

Correct on Edge 2020-2021 :D

Answer:

192 hours per day / 8 hours per person per day = 24 people

Step-by-step explanation:

Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:

720 person-days x 8 hours = 5,760 hours

To complete the project in 30 days, the total number of hours needed per day is:

5,760 hours / 30 days = 192 hours per day

Answer:

b 4 + 3p ≥ 40

Step-by-step explanation:

he needs more than 40 points, so we need to pick and answer with a greater than or equal to sign that faces the side with Glenn's points. This leaves b or c for our answers. Glenn played 3 different rounds in which he scored a value represented by the variable p. Additionally, he scored a value of 4 points is given. Therefore, because he scored p in 3 different rounds, p is multiplied by 3 to make 3p. So, 4+3p≥ 40 (answer b) is correct

Answer:

b 4 + 3p ≥ 40

Step-by-step explanation:

Answer: $7,500

Step-by-step explanation:

8/100 x $7,500

= $600

so we will take and add with original price

$600 + $7,5080

= $8,700

9514 1404 393

Answer:

Step-by-step explanation:

The surface area of the figure is the total of the areas of the two triangular bases and the three rectangular faces.

  SA = 2(1/2)(8 cm)(6 cm) + (17 cm)(6 cm + 8 cm  + 10 cm)

  = 48 cm² + 408 cm²

  SA = 456 cm²

__

The volume is the product of the area of the triangular base and the length of the prism.

  V = (1/2)(8 cm)(6 cm)×(17 cm) = (24 cm²)(17 cm)

  V = 408 cm³

Answer:

surface area: 456 cm²

volume: 408 cm³

Step-by-step explanation:

Answer: 4 miles are equal to 7040

Step-by-step explanation:

As we know that the ratio can be simplified and the answer can be obtained,

according to the question 5 miles are equal to 8800.

so, here we arrange the ratio in its format as follows

Step 1:

              Miles: Yards

                      5:  8800

Step 2: here we bring the ratio to its simplest form by dividing by 5 on both sides, that is:

5/5=1

8800/5= 1760

Now we get:

                         Miles: Yards

                                 1: 1760

Step 3: now as we need to find the answer for 4 miles we need to multiply with 4 on both sides, that is:

                         Miles: Yards

                                4: 7040

from here we get the answer as 4 milesequalso 7040 yards.

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Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

Two sets of data, set X and set Y are given

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

Therefore, both the data sets has same range and mean.

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.  

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Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

We know

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

also

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.

Answer:

The correct responses are A and B, as these are examples of unit rates. A unit rate is a ratio that has a denominator of 1, such as 6:1 and 4:1. Three feet per second is not an example of a unit rate as the value is not in a ratio format.

Answer:

C-three feet per second and B-4 to 1

Step-by-step explanation:

Answer: d

Step-by-step explanation:

good job

If the side lengths of the new phone are proportional to the old phone, then we can set up a proportion:

1.4/4.2 = 1.75/x

Solving for x, we get:

x = 5.25 inches

So the width of the new phone will be 5.25 inches.

Answer:

The answer is 5.25 inches!

Step-by-step explanation:

If you have any questions please ask me! :)

Answer:

sorry i need points.

Answer:

(-3,9) goes in quadrant II, (6, -6) goes in quadrant IV, and (0, -1 1/2) goes in quadrant IV.

hope this helps.

Answer:

169

Step-by-step explanation:

f(x) = x^2, g(x) = x + 6, h(x) = 7

f(g[h(x)])

Replace h(x) with 7

f(g(7))

g(7) = 7+6 = 13

Replace g(7) with 13

f(13) = 13^2 = 169

Answer:

169

Step-by-step explanation:

We are asked to find:

f(g[h(x)])

We know that  f(x) = x^2, g(x) = x + 6, and h(x) = 7

Therefore, we can begin by substituting 7 for h(x)

 f(g[h(x)]), h(x)=7

f(g[7])

Now, we must find g(7). We know that g(x) is x+6

g(x)=x+6

We want to find g(7). Plug 7 in for each x.

g(7)=7+6

Add 7 and 6

g(7)=13

Substitute 13 in for g(7)

f(g[7])

f(13)

Finally, find f(13). We know that f(x)=x^2

f(x)=x^2

We want to find f(13). Plug 13 in for each x.

f(13)=13^2

13^2= 13*13= 169

f(13)=169

169

Therefore, f(g[h(x)]) is 169

Answer:

Real

Step-by-step explanation:

Real numbers are a set of numbers that can be plotted on a number line, and include both rational and irrational numbers.

Division and multiplication numbers are not a type of number category.

And, non-real numbers are numbers that are not real, so they cannot be plotted on a number line.

So, Real numbers is the correct answer.

All the Real numbers, which include rational and irrational numbers, can be plotted on a number line.

Rational numbers are numbers that can be written in the form of a/b where a and b are integers. Example: 1/2, 3.5 (which is writable as 7/5), etc. Irrational numbers are those real numbers that are not rational numbers. Know that all natural numbers are integers, and all integers are rational numbers. That means natural numbers are not irrational.

we need to find the numbers, which include rational and irrational numbers, that can be plotted on a number line.

We know that Real numbers are a set of numbers that can be plotted on a number line, and include both rational and irrational numbers.

Division and multiplication numbers are not numbers.

And, nonreal numbers are not real, so they cannot be plotted on a number line.

So, Real numbers are the correct option.

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Answer:$360

Step-by-step explanation:

I=PRT

I=12/100×2000×1.5

I=24×1.5

I=$360

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Answer:

A.

Step-by-step explanation:

The slope is 1, so for every hour, it goes up $10.

Answer:

1: 11/4

2: 24/5

3: 2 4/5

4: 55/9

5: 8 1/5

6: 28

7: 4 1/17

8: 54

9: 39 1/2

10: 1 3/4

Step-by-step explanation:

Answer:

Area of five squares = 1289.09 square units

Perimeter =  194.6 units

Step-by-step explanation:

Area of square and perimeter:

   First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

                                  = 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

                                                         = 90 + 42 + 28 + 18.7 + 15.9

                                                          = 194.6 units

Answer:

C and D

Step-by-step explanation:

C and D both show 1.1 + 0.6

The others do not

Answer: in this order angle d, e, f line de, ef, fd

Step-by-step explanation: