please solve this. i need help

Answer:

The correct option is B.

Step-by-step explanation:

From the given dot plot we can say that 3 children have 9 in. long forearm,  4 children have 10 in. long forearm and  3 children have 11 in. long forearm.

The average of length of forearms of Group A is

The average of length of forearms of Group A is 10 inches.

From the given dot plot we can say that 3 children have 10 in. long forearm,  5 children have 11 in. long forearm and  2 children have 12 in. long forearm.

The average of length of forearms of Group B is

The average of length of forearms of Group B is 10.9 inches.

10.9>10 it means Group B has longer average forearm length. It is true because two children have a forearm length longer than 11 inches.

Therefore the correct option is B.

The equivalent fraction for 5/15 is 1/3

Equivalent fractions are fractions with different numbers representing the same part of a whole. They have different numerators and denominators, but their fractional values are the same. For example, think about the fraction 1/2.

If this is for a school assignment, not sure how someone else would record themselves playing rock paper scissors.

Answer:

(A) 113.04^2

Step-by-step explanation:

Area of a circle is found with: πr^2

in this we will replace π with 3.14

the radius is 6feet

first step: 6^2 = 36

second step:  3.14*36= 113.04^2

Answer:

9:6

Because he collected 9 coins in total, and 6 from friends, so this would be the right ratio.

Answer:4/25

Step-by-step explanation: add the frequency together making it 50 then put the frequency u want (8) and divide by the total (50) making it 16 covert it into fraction it 4/25. ( i hope I got it right but tell me if I'm wrong ill try again)

Answer:

15/4 or 3.75

Step-by-step explanation:

x - 15 x + 18 = 3 - 10x

               15 = 4x

                 x = 15/4 or 3.75

Step-by-step explanation:

The average age of 29 % boys who attend school.

Answer: The average age of 6 students is 11 years. If two more students of age 14 and 16 years join, their average.

Step-by-step explanation:

Answer:

1^ = 155°

^2 = 25°

^3 = 155°

Step-by-step explanation:

^1 + ^4 = 180° { sum of angles in straight line are equal to 180°}

^1+^2 = 180°{sum of angles in straight line are equal to 180°}

^3+^4=180°{sum of angles in straight line are equal to 180°}

Answer:

11.

Step-by-step explanation:

Answer:

Step-by-step explanation:

This is step by step:

Step 1:

Solve parenthesis:

Step 2:

Solve 12 ÷ 4:

Step 3:

Solve final equation:

Final answer is 11.

Answer:

B is the correct answer. The two median numbers are 88 and 92. If you find the average of those, you get 90. Therefore, the median is 90.

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

if Emma makes 12 cupcakes and her friends eat them all, she now has 0 cupcakes.

Answer:

The answer is [tex]\frac{4}{8}[/tex] (see the attached picture)

Step-by-step explanation:

the distance between 0 & 1 is divided into 8 sections, meaning each section = [tex]\frac{(1-0)}{8} =\frac{1}{8}[/tex]

Answer:

4!

Step-by-step explanation:

its 0.05 not 0.5! instead of it being 40, its 4

4 freight cars can be filled by 120 scoops of excavator having a total mass of 156 tons and a volume of 3120 ft³.

In three-dimensional space, volume refers to the entire amount of space occupied by an item. Capacity refers to an object's capacity to contain, absorb, or accept anything (such as a solid material, gas, or liquid).

The amount of matter in a substance or object is measured by its mass.

In the question, we are given that the scoop of an excavator holds 26 ft³of sand.

We are asked if the capacity of a freight car is 39 tons of sand, then how many freight cars can be filled with 120 scoops.

We are also informed that 1 ft³ of sand weighs 0.05 tons.

We first find the mass of sand in one scoop of an excavator.

The volume of sand in one scoop of an excavator = 26 ft³.

Mass of 1 ft³ of sand = 0.05 tons.

∴ Mass of 26 ft³ of sand, that is, the mass of sand in one scoop of an excavator = 26*0.05 tons = 1.3 tons.

∴ Mass of 120 scoops = 120*1.3 tons = 156 tons.

The capacity of one freight car = 39 tons

∴ Number of freight cars in 156 tons = 156/39 = 4.

∴ 4 freight cars can be filled by 120 scoops of excavator having a total mass of 156 tons and a volume of 3120 ft³.

Learn more about the mass and volume of a substance at

https://brainly.com/question/1354972

#SPJ2

Answer:

1) The length of the entire walkway to the nearest hundredth of a yard is 50.24 yds

2) 50.24 is a rational number

Step-by-step explanation:

1) To calculate the length of the walkway, you need to find "b"

the value of b using the Pythagoras theorem can be written as,

D²=12²+b²

15²=12²+b²

225=144+b²

b²=81

b=9

the value of each of the four hypotenuses can be written as,

A = [tex]\sqrt{12^2+8^2}[/tex] = [tex]\sqrt{208}[/tex] = 14.422

B = [tex]\sqrt{6^{2} +8^{2} }[/tex] = [tex]\sqrt{100}[/tex] = 10

C = [tex]\sqrt{6^2+9^2}[/tex] = [tex]\sqrt{117}[/tex] = 10.82

D = 15

Adding the value of all the hypotenuse to get the length of the walkway, therefore, the length will be,

14.422 + 10 + 10.82 + 15 = 50.24

So, the entire walkway to the nearest hundredth is 50.24

2) Because Irrational numbers are ones that never end.

50.24 is a nice, round number, even though its a decimal.

Answer:

50.24 - rational number

Step-by-step explanation:

Answer:

1/100.

Step-by-step explanation:

Total number of socks in the drawer

= 25.

Prob(First pick is brown) = 3/25.

Prob(Second pick is brown) = 2/24 = 1/12.

So the required probability

= 3/25 * 1/12

= 3/300

= 1/100.

Answer:

Ok so the answer to this question would be 3/25

Step-by-step explanation:

The answer to the probability is always a fraction

The numerator is the number of favorable outcomes - in this problem, it is the brown socks

The denominator is the total amount of possible outcomes - in this problem, it is the total amount of socks

3/ 10+ 12 +3 = 3/25

- By the way, have your answer in simplest form - always

Answer:

5 is the answer

Answer:

5

Step-by-step explanation:

So you cross to find X

Let me know if you have any other questions!

Answer:

36,800

25
__________________________________________________________

Step-by-step explanation:

~This is how I usually do this normally.~

~4 x 5 x 10 x 23 x 8 = 36,800~

~5 x 5 = 25~

~Hope this helped!~

Answer:

I believe the first one is 125 cm squared and the second one is 175

Step-by-step explanation:

Pls tell me if I am wrong

Hope this helped ~(￣▽￣)~

Answer:

200

Step-by-step explanation:

Answer:

I got you I saved the image and wrote on it :)

Step-by-step explanation:

just look at the image it has all the coordinates labeled.

Answer:

115

Step-by-step explanation:

you just add the first week money and the second  week money then you get your answer

Answer:

1a. x is less than or equal to -4

1b. closed circle since its equal to -4

1c. attached image, closed circle on -4 connected to arrow pointing left

2a. x is greater than or equal to -1

2b. closed circle since its equal to -1

2c. attached image, closed circle on -1 connected to arrow pointing right

3a. x is less than 4

3b. open circle since its NOT equal to 4

3c. attached image, open circle on 4 connected to arrow pointing left

Answer:

Answers below! Hope this helps

Step-by-step explanation:

1)

a. x is less than or equal to negative 4

b. closed circle

c. draw a closed circle on -4 and connect a one sided arrow to the point. This arrow will be going to the left since each of the values to the left of negative 4 are less than negative 4.

2)

a. x is greater than or ewual to negative 1

b. closed

c. draw a clsoed circle on -1 and connect a one sided arrow to the point. This arrow will be going to the right since each of the values towards the right of negative 1 are larger than negative 1.

3)

a. x is less than 4

b. open circle

c. draw an open circle on 4 and connect a one sided arrow to the point. This arrow will be going towards the left because each of the values to the left of 4 are less than 4.

Answer:

[tex]=2\times \left( \frac{3}{2} \right)^{n+1} -2[/tex]

Step-by-step explanation:

[tex]1+\frac{3}{2} +\frac{9}{4} +\frac{27}{8} +\cdots[/tex]

[tex]=1+\left( \frac{3}{2} \right)^{1} +\left( \frac{3}{2} \right)^{2} +\cdots +(\frac{3}{2})^n[/tex]

[tex]=\frac{1-\left( \frac{3}{2} \right)^{n+1} }{1-\frac{3}{2} }[/tex]

[tex]=-2\times \left( 1-\left( \frac{3}{2} \right)^{n+1} \right)[/tex]

[tex]=2\times \left( \left( \frac{3}{2} \right)^{n+1} -1\right)[/tex]

A B E

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Answer:

Use the FOIL Method

Step-by-step explanation:

A: 5.9a + 2.2b

B: 5.9a + 5.6b

C: 5.9a - 5.6b

D: 5.6b - 5.9a

E: 5.9a - 5.6b (This is it’s simplest form)

So as you can C and E are equalivalent, so these are your answers.

Mark me brainliest if this was correct :)

Answer:

Step-by-step explanation:

Baraz deposited $2,500 into his bank account. The bank paid interest of 4% per year. How much interest will he have earned at the end of the year?

2500 : 100 * 4 = 100

Answer:

Step-by-step explanation:

a)500w/m or 500wpm

c)70km/h

d)200L/m

couldn't work out b)

Answer: 21

Step-by-step explanation: