Answers
Related Questions
The two dot plots below compare the forearm lengths of two groups of schoolchildren:
Based on visual inspection of the dot plots, which of the following groups appears to have the longer average forearm length?
A. Group A, because no child in the group has a forearm length longer than 11 inches
B. Group B, because two children have a forearm length longer than 11 inches
C. Group A, because three children in the group have the least forearm length of 9 inches
D. Group B, because a child in the group has the least forearm length of 9 inches
Answers
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.
55. In a quality control procedure to test for defective light bulbs, two light bulbs are randomly selected from a large sample without replacement. If either light bulb is defective, the entire lot is rejected. Suppose a sample of 200 light bulbs contains 5 defective light bulbs. Find the probability that the sample will be rejected. (Hint: First calculate the probability that neither bulb is defective.)
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Brainliest, help me! Thanks queen!!
What is an equivalent fraction for the following fraction?
5/15
Options:
A.1/4
B.1/5
C.1/3
Answers
The equivalent fraction for 5/15 is 1/5
Option B is correct
Hope it helps
Mark as brainliest.
The equivalent fraction for 5/15 is 1/3
What are equivalent fractions?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.
please help! I will give brainliest
The members of the gardening group plan to build a walkway through the garden as formed by the hypotenuse of each of the four triangles in the drawing. That way, the gardeners will be able to access all sections of the garden. Calculate the length of the entire walkway to the nearest hundredth of a yard. Show your work. (4 points—1 point for each length calculation and 1 point for the total distance)
Is the value you just wrote for the total length of the walkway a rational or irrational number? Explain. (2 points)
Answers
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:
Find n. 16/64 n/8 please :)
Answers
n = 2 because thats what you whet when yiou simplify it
16 divided by 8 is 2 so the answer is 2
A lawn sprinkler sparys water 6 feet in all directions as it rotates
Find the area of the lawn that the sprinkler covers. use 3.14 for π
A 113.04²
B 37.68²
C 678.24²
D 18.84²
Answers
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
Solve 6(2/3x-3)>8. The thing says the question is too short and to add at least 20 more words so ignore this sentence, it's only to submit
Answers
Answer:
[tex]6(\frac{2x}{3} -3) > 8\\[/tex]
Solve brackets
6(0.66x-3)>8
Multiply 6 with values in the bracket
So, 6x0.66x and 6x-3
4x- 18> 8
Since 4x and 18 are unlike terms, we will take 18 onto the other side, thus:
4x>8+18
4x>26
Now to find the value of x, divide 4 on B.S
x> [tex]\frac{26}{4}[/tex]
X> 6.5
OR in 'fraction form'
X>[tex]\frac{13}{2}[/tex]
Hope this helps :D
12x/3 - 18 > 8 distribute the 6
4x - 18 > 8 reduce fraction
4x > 26 add 18 to both sides
x > 6.5 divide both sides by
4.
A three-digit lottery ticket using the numbers 0 to 9 has how many possible combinations?
Answers
Answer:
720
Step-by-step explanation:
If order mattered, we would say select the first number (10 choices), then the second (9 choices) then the third (8 choices). So there would be 10 x 9 x 8 = 720 possible choices.
Answer:
there are 720 possible answers
Step-by-step explanation:
(10 choices) on the first, then the second (9 choices) then the third (8 choices). So there would be 10 x 9 x 8 = 720 possible choices.
The measure of ∠4 is 25 degrees greater than one-fourth of the measure of ∠1. Find the measure of each of the four angles formed by the intersecting lines.
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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°}
The table shows the number of students playing different games at recess. What is the relative frequency of students playing 4-square? Express your answer as a fraction in simplest form.
Answers
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)
ASAP PLEASE HELP HOMEWORK!!!
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Answer: He will have 3750 in 5 years.
Step-by-step explanation: You need to do 500x1.5x5=3750! 500 dollars is the amount in the account. 1.5 is the interest. 5 is the amount of years.
So multiply
500 × 1.5 % = 7.57.5 percent is equal to only 1 year so ..
7.5 × 5 = 37.5Then add to 500
37.5 + 500 = $537.50537.50 is the simple interest but the annual interest is $538.64
Of the following situations, which one involves combining opposite quantities to make zero?
Answers
Answer:
d
Step-by-step explanation:
if Emma makes 12 cupcakes and her friends eat them all, she now has 0 cupcakes.
Write each amount as a rate.
a) A fast reader can read 500 words every minute.
b) Min did 13 chin-ups in 1 min.
c) A cheetah can run 70 km in 1 h.
d)When fighting a fire, a fire truck uses about 200 L of water every minute.
Answers
Answer:
Step-by-step explanation:
a)500w/m or 500wpm
c)70km/h
d)200L/m
couldn't work out b)
Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 4 bulbs. In the second year, it produced 8 bulbs, and in the third year, it produced 16 bulbs. If this pattern continues, how many bulbs should Geoff expect in the tenth year?
A). 2,048 bulbs
B). 1,024 bulbs
C). 40 bulbs
D). 32 bulbs
Answers
Answer:
I think it's A). 2,048
Step-by-step explanation:
I did the problem.
4 * 2 = 8 2nd year
8 * 2 = 16 3rd year
16 * 2 = 32 4th year
32 * 2 = 64 5th year
64 * 2 = 128 6th year
128 * 2 = 256 7th year
256 * 2 = 516 8th year
516 * 2 = 1024 9th year
1024 * 2 = 2048 10th year
If 2048 isn't correct, than the answer is B?. 1,024
36. Find the sum of the infinite geometric series if it exists.
1+\frac{3}{2}+\frac{9}{4}+\frac{27}{8}+\cdots
Answers
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]
Joseph earned $53 the first week he worked at Jim’s Candy Store and $62 the next week.
How much did Joseph earn his first two weeks?
please help it is for an Assignment
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Answer:
115
Step-by-step explanation:
you just add the first week money and the second week money then you get your answer
perimeter of a triangle (combine like terms)
Answers
Answer:
6x+3
Step-by-step explanation:
(x+4)+(3x-2)+(2x+1)
=x+4+3x-2+2x+1
=x+4+3x-2+2x+1 --> Here I'm just bolding the variables. This makes it easier to combine like terms in the next line.
=6x+4-2+1
=6x+3
Norma has 10 black,12 white,and 3 brown pairs of socks in one drawer. What is the probability that without looking, Norma will pick a BROWN pair of socks from the drawer?
Answers
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
In the game 'rock, paper, scissors', both players make a fist with one hand. On the count of three, the players make either a rock (by keeping their hand in a fist), a sheet of paper (by holding their hand out flat), or a pair of scissors (by sticking out their first two fingers).
If both players make the same thing, it's a tie. If a rock and scissors are played, the rock wins. If scissors and paper are played, the scissors win. If paper and a rock are played, the paper wins.
a) Play at least 20 games of 'rock, paper, scissors' with a friend. Record the results as you go - write down who won, and what with.
b) After you've finished playing, organise your results into a table and use this to estimate some probabilities. Who was most likely to win? Were either of you more likely to play a certain object each time? Could you use this information to help you win more games next time?
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If this is for a school assignment, not sure how someone else would record themselves playing rock paper scissors.
the actual distance between two towns is 190 km the scale on the particular map is 1 cm: 20 km. how far apart are the map are these two towns?
can you please explain it step by step? tysm
Answers
Answer:
9.5cm
Step-by-step explanation:
divide 190 by 20 then put cm after the answer
Answer:
9.5cm
Step-by-step explanation:
190 divided by 20=9.5
Someone told me to get it done so im asking brainly
Answers
the scoop of an excavator holds 26 ft³of sand. if the capacity of a freight car is 39 tons of sand and we know that 1 ft³ of sand weighs 0.05 ton how many freight cars can be filled with 120 scoops?
Answers
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.
What do we mean by volume or capacity of a substance?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).
What do we mean by the mass of a substance?The amount of matter in a substance or object is measured by its mass.
How do we solve the given question?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
Solve the Expression
x-3(5x-6)=3-10x
Find the value of "x"
Answers
Explanation:
Answer:
15/4 or 3.75
Step-by-step explanation:
x - 15 x + 18 = 3 - 10x
15 = 4x
x = 15/4 or 3.75
The table shows the amount of produce sold at a farmer's market in the morning.
Type of Produce Number Sold
apples 40
sweet corn 80
pears 30
The farmer expects to sell 240 pieces of produce in the afternoon. Based on this morning's results, how many apples can be expected to be sold?
apples
Answers
Answer:
64 apples
Step-by-step explanation:
We assume that the proportion of apples sold in the afternoon is the same as it is in the morning.
__
setupThe number of pieces of produce sold in the morning was 40+80+30 = 150. Of these, 40 were apples. At that same rate, the sale of apples in the afternoon is expected to be ...
apples/total = apples/240 = 40/150
solutionMultiplying by 240, we find the expected sale of apples to be ...
apples = 240(40/150) = 64
64 apples can be expected to be sold in the afternoon.
Uhm does anyone know the answers?
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A B E
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..
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...
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..
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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 :)
Plot the following points on the coordinate plane: Point A: (3, 5) Point B: (0, 3) Point C: (1, 8) Point D: (7, 2) Point E: (0, 9)
PLEASE HELP WILL GIVE BRAINLIEST (88 POINTS)
Answers
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.
The average age of 7 boys who attend school school is 9 years. If the average age of 4 of the boys is 12 years, find the average age of the remaining boys.
Answers
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:
5. IN YOUR OWN WORDS How can you find the volume of a prism?
Answers
Answer:
Multiply each number by another as shown : X * Y * Z = Volume.
Step-by-step explanation:
word problems involving length and money
Answers
Answer: 21
Step-by-step explanation:
Inequalities (PLEASE HELP)
Answers
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.