Listen, we all feel like we could use a bit of memory training. Let’s start with a small thought experiment. Take a minute to think back to your science classes in high school and see how much you can recall.
Can you explain the elements that make up an atom, or the basic principles of plant biology? How about physics, or simple chemistry? Do facts and procedures come rushing back, or do you remember your teacher’s face, or the way the room smelled after an experiment?
Everyone will have different memories, and they may have very little to do with what you were taught in class. You might not remember anything at all. It’s extraordinary how quickly we manage to forget what we crammed during all those long hours of study. Algebra. Long division. Verbs, adverbs and relative clauses. The causes of World War I. Where did it all go, we muse, years later?
It is extraordinary that so many of the world’s education systems, which are usually based on testing how well a student can recall and apply information, are designed without any real thought of how our memories work. Memory is perhaps the most fundamental factor in how human beings learn. Memory training should inform all aspects of education; instead, it’s an afterthought.
Advances in cognitive science have huge implications for how we learn and remember things. It’s time for policymakers, educators, and anyone who wants to learn something — in other words, all of us — to start listening.
Please help! We never learned this!
( 80 POINTS )
the data in the table represents a linear function
| x | -3 | 0 | 3 | 6 |
| y | -5 | -3 | -1 | 1 |
what is the slope of the linear function?
which graph represents the data?
( 80 POINTS )
Alright! To find the slope you must divide the y-coordinates of the points on the line by the x-coordinates of those points .
So the slope of the linear function would be 3/2
The second question would be these one
Algebraic expression
Seven points less than yesterday’s score
The algebraic expression for the given statement is x-7.
The given statement is seven points less than yesterday’s score.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
Let the score of yesterday be x.
Here, expression is x-7
Therefore, the algebraic expression for the given statement is x-7.
To learn more about an expression visit;
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Make these fractions mixed numbers
15/4
51/25
17/12
16/6
92/30
What is 549,423 rounded to the nearest thousand
Rounding 549,423 to the nearest thousand involves looking at the hundreds of places. Since it's lower than 5, the thousand's place remains the same, rendering 549,000 as the rounded number.
Explanation:Rounding 549,423 to the nearest thousand involves examining the hundreds place, which contains a 4. In rounding, if this number is less than 5, you leave the thousands place as it is and change everything to its right to zeros. If it's 5 or more, you increase the thousands place by one and change everything to its right to zeros.
Therefore, because the number in the hundreds place in 549,423 is 4 - which is less than 5 - we don't round up. We leave the thousands place '549' as is and change the hundreds, tens, and ones place to zeros. Hence, 549,423 rounded to the nearest thousand is 549,000.
Learn more about Rounding Numbers here:https://brainly.com/question/19166897
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A piece of popcorn, on average, has a volume of 1.125 inches cubed. How many pieces of popcorn will fit in a bag that has a dimension of 5 inches by 3 inches by 7 inches?
To find out how many pieces of popcorn will fit in a bag with dimensions of 5 inches by 3 inches by 7 inches, divide the bag's volume by the average volume of a popcorn piece.
To calculate the volume of popcorn that fits in the bag:
Calculate the volume of the bag: 5 in x 3 in x 7 in = 105 in³.
Divide the bag's volume by the average volume of a piece of popcorn (105 in³ ÷ 1.125 in³ = 93.33 popcorn pieces).
A spherical model of planet Earth has a radius of 3 ft.
What is the approximate volume of the model of planet earth?
Use 3.14 to approximate pi. Round to the nearest hundredth if necessary.
Enter your answer in the box.
Answer:
The approximate volume of the model of planet earth is [tex]113.04\ ft^{3}[/tex]
Step-by-step explanation:
we know that
The volume of the sphere is equal to
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
we have
[tex]r=3\ ft[/tex]
substitute
[tex]V=\frac{4}{3}(3.14)(3^{3})=113.04\ ft^{3}[/tex]
The approximate volume of a spherical model of Earth with a radius of 3 ft is calculated using the formula V = (4/3)πr³, which results in a volume of 113.04 cubic feet when rounded to the nearest hundredth.
Explanation:To calculate the approximate volume of a spherical model of planet Earth with a radius of 3 ft, we use the formula for the volume of a sphere, which is V = (4/3)πr³. Plugging in the values, we get V = (4/3) × 3.14 × (3 ft)³. Performing the calculation, we first cube the radius (3 ft × 3 ft × 3 ft = 27 ft³), then multiply by π (approximately 3.14), and finally multiply by 4/3. So, V = (4/3) × 3.14 × 27 ft³ = 113.04 ft³.
When we round to the nearest hundredth, the approximate volume of the model is 113.04 cubic feet.
10 POINTS PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!
A group of 7th and 8th graders were asked if they like playing tennis. This two-way frequency table shows the proportion of students from each grades that like or do not like playing tennis. Like playing tennis Do not like playing tennis 7th Grade 0.42 0.58 8th Grade 0.47 0.53 Which conclusions can be made from the table? Select each correct answer. For both grades, more students like playing tennis than did not like playing tennis. Among the 7th graders, more students like playing tennis than do not like playing tennis. The 8th graders have a larger percentage of students that do not like playing tennis than do like playing tennis. Compared to the 8th graders, a smaller percentage of the 7th graders like playing tennis.
Answer:
The 8th graders have a larger % of students that do not like playing tennis than do like playing tennis
Compared to the 8th graders, a smaller percentage of the 7th graders like playing tennis.
those are the correct answer
Step-by-step explanation:
I did the test proof VVV VVV VVV
I need help with number 10 please, thanks.
Cubic bins with closed tops are used to transport melons to the farmers market. The edge length of each bin is 1.5 m. What is the surface area of the outside of one of the bins? Drag and drop the correct answer into the box. 3.375 91 1.25 13.5
m??
Answer: [tex]13.5\text{ m}^2[/tex]
Step-by-step explanation:
Given: Cubic bins with closed tops are used to transport melons to the farmers market.
The edge length of each bin = 1.5 m
We know that the surface area of cube is given by :-
[tex]\text{S.A.}=6(\text{edge})^2\\\\\Rightarrow\text{S.A. of cubic bin}=6(1.5)^2\\\\\Rightarrow\text{S.A. of a cubic bin}=13.5\text{ m}^2[/tex]
Hence, the surface area of a cubic bin=[tex]13.5\text{ m}^2[/tex]
income of $40,000paid $ 8,800 in federal income taxes. What fraction shows how much my parents spent on their federal taxes?
A store sells used and new video games. New video games cost more than used video games. All used video games cost the same and all new video games also cost the same. Yafreisy spent a total of $84 on 4 used video games and 2 new video games. Ashley spent a total of $78 on 6 used video games and 1 new video game. Brayan has $120 to spend. How many used video games can Brayan purchase after purchasing 3 new video games? *
Brayne can purchase 5 used video games after the purchase of 3 new video games.
Let us say
Cost of each used video game = x
Cost of each new video game = y
According to question,
Yafreisy spent a total of $84 on 4 used video games and 2 new video games.
4x+ 2y = 84......(i)
Ashley spent a total of $78 on 6 used video games and 1 new video game.
6x + y = 78......(ii)
After solving pair of linear equations (i) and (ii)
What is A linear equation in two variables?An equation in the form of ax+by+c, where a,b and c are real numbers and a,b are not equal to zero, is called a linear equation in two variables.
x=9
y= 24
After purchasing 3 new video games, money left with Brayen:
120-3*24=$48
So, used video games that Brayen can buy after purchase of 3 new video games = 48/9 ≈5.4
Therefore, Brayne can purchase 5 used video games after the purchase of 3 new video games.
To get more about the pair of linear equations refer to:
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Funny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. When she began her study, the frog population was estimated at 1,200. Which function represents the frig population after years?
What is the answers to this math worksheet ?
Subtract: 12 3/8 - 8 1/5
A) 4 2/3
B) 4 1/20
C) 4 2/13
D) 4 7/40
Answer:
the answer is d
Step-by-step explanation:
What is 2 * 4 + 8/7 - 2/5 (3 + 8)
No calculator plzz!!!
WHERE ARE ALL OF MY MATH GENIUSES AT!!!!!!!!
1.)
Factory workers test 80 batteries. Four batteries are defective. What is the experimental probability that a battery is defective?
2.)
Assume this trend continues. Predict the number of defective batteries in a batch of 1,600.
3.)
THERE ARE SIX OPEN CONTAINERS ARRANGED AS SHOWN. YOU TOSS A BALL AND IT FALLS INTO ONE OF THE CONTAINERS AT RANDOM. FIND EACH PROBABILITY. (ORDER OF NUMBERS IN A TRIANGLE: 123456)
P(number greater than 4)
P(even number)
P(4)
P(7)
4.)
a car comes in the colors and models listed in the table below. assume there is the same chance of selecting any color or model.
silver hatchback
gray coupe
black sedan
Give sample space
find the probability that a car selected at random is silver hatchback
find the probability that a car selected at random is yellow coupe
5.)
design a simulation that can be used to estimate the probability that a student will get at least 2 answers correct when guessing the answers to 3 true or false questions.
6.)
on average 9% of the packages delivered by a shipping company are late. use the random digits below as a simulation tool to estimate the probability that a customer can receive at least 4 packages without any being late. each row represents one trial.
63 13 02 41
51 44 40 60
25 63 84 11
71 81 32 79
72 39 13 75
10 85 99 93
59 70 00 68
51 64 94 08
91 71 39 95
70 27 23 61
nCr=8C2=28 coefficient
28*p^2*q^6=.2965
The ratio of vertical change to the horizontal change is called _________.
A. The slope
B. Translation
C. The y intersept
Answer:
slope
Step-by-step explanation:
A square has a side length of 6.2 centimeters. What is the perimeter of the square
Which number is an irrational number?
A: 0.12
B: 0.1257486
C: 0.12121212
D: 0.111111
Final answer:
The irrational number in the given options is C: 0.12121212, as it repeats the sequence '12' infinitely without any pattern.
Explanation:
An irrational number is a number that cannot be expressed as a simple fraction (i.e. a ratio of two integers) and has an infinite number of non-repeating decimal places. Out of the given options, the number C: 0.12121212 is an irrational number because it repeats the sequence '12' infinitely without any pattern. The other options, A: 0.12, B: 0.1257486, and D: 0.111111, can all be expressed as fractions and have either a finite decimal representation or a repeating decimal pattern.
If the sum of the positive integer a and 5 is less than 12, what is the sum of all possible values of a?
To find the sum of all possible values of a, we subtract 5 from both sides of the inequality a + 5 < 12 and find the maximum value of a. The sum of all possible values of a is 21.
Explanation:To find the sum of all possible values of a, we need to determine the range of possible values for a. We are given that the sum of a and 5 is less than 12. This can be expressed as a + 5 < 12. To find the maximum value of a, we subtract 5 from both sides of the inequality: a < 12 - 5 = 7. Therefore, the possible values of a are all the positive integers less than 7. To find the sum of all these values, we can use the formula for the sum of consecutive positive integers: S = (n/2)(n+1), where n is the largest integer. In this case, n = 6, so the sum of all possible values of a is (6/2)(6+1) = 21.
The sum of all possible values of a is 21.
Explanation:The question states that the sum of the positive integer a and 5 is less than 12. To find the sum of all possible values of a, we need to determine the range of values that satisfy this inequality. Let's set up the inequality:
a + 5 < 12
Subtract 5 from both sides:
a < 7
So, the possible values of a are all positive integers less than 7. To find the sum of all these values, we can use the formula for the sum of an arithmetic series:
Sum = (n/2)(first term + last term)
Here, the first term is 1 and the last term is 6 (since we want integers less than 7). The number of terms, n, is 6, since there are 6 possible values of a. Plugging in these values:
Sum = (6/2)(1 + 6) = 3 * 7 = 21
So, the sum of all possible values of a is 21.
18.65 × 6.8 how do you do it
type the number of terms in 6x+3y
Write in slope-intercept form an equation of the line that passes through the given points. (−9, 5), (−3, 3)
The slope intercept format is y = -1 / 3x + 2
The slope intercept formula is represented as follows
y = mx + bwhere
m = slope
b = y-intercept
Therefore, let's find m using the coordinates (-9, 5)(-3, 3)
m = 3 - 5 / -3 - (- 9) = -2 / 6 = - 1 / 3
let's find b using the coordinate(-3, 3)
3 = -1 / 3 (-3) + b
3 = 1 + b
b = 2
Finally,
y = -1 / 3x + 2
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A 14-ounce box of cereal sells for $2.10. what is the unit rate.
Final answer:
To find the unit rate for a 14-ounce box of cereal selling for $2.10, divide the price by the number of ounces to get $0.15 per ounce.
Explanation:
The unit rate for a 14-ounce box of cereal selling for $2.10 can be calculated by dividing the price of the box by the number of ounces it contains. To find the unit rate, you would perform the following calculation:
Unit rate = Price per box ÷ ounces per box
Unit rate = $2.10 ÷ 14 ounces
Unit rate = $0.15 per ounce
Therefore, the unit rate or cost per ounce for the cereal is $0.15.
hat is the equation of the trend line for the bivariate data shown in the scatter plot? Scatter plot shows trend line for bivariate data with coordinates (0, 0), (2, 6).
Answer:
the slope is 3 and the intercept is 0.
Step-by-step explanation:
The figure is made up of a cylinder and a cone. What is the exact volume of the figure?
Find the value of x
A. 25
B. 32.5
C. 37.5
D.65
A 1 1/2-pound piece of turkey costs $7.98. A 6-ounce package of the same sliced turkey costs $2.49. What is the difference in price per 3-ounce serving?
The difference in price per 3-ounce serving package is $0.2475.
Price Per Serving CalculationFirst, we need to determine the cost per 3-ounce serving for each type of turkey packaging. Since there are 16 ounces in 1 pound, a 1 1/2-pound piece of turkey is equivalent to 24 ounces.
Cost per ounce for the 1 1/2-pound turkey: $7.98 \/ 24 ounces = $0.3325 per ounce.
Cost per 3-ounce serving for the 1 1/2-pound turkey: $0.3325 x 3 = $0.9975.
The 6-ounce package costs $2.49, so:
Cost per ounce for the 6-ounce package: $2.49 \/ 6 ounces = $0.415 per ounce.
Cost per 3-ounce serving for the 6-ounce package: $0.415 x 3 = $1.245.
The difference in price per 3-ounce serving between the two types of turkey is: $1.245 - $0.9975 = $0.2475.
Gerald is saving money. His mom said that whatever he saves, sehe will give him $10 more. Which graph shows the amount Gerald will have if he saves d dollar?