How to learn 13 table fast?
Answers
The trick for table 13 are as follows.
What is multiplication table?A multiplication chart is a table that displays the products of two numbers. One set of numbers is typically written in the left column, while another set is written in the top row. The numbers in the products are listed in a rectangular array. Addition is repeated when you multiply.
To learn table fast follow points,
1. To learn the 13 times table, we must first learn the 3 times table. 3, 6, 9, 12, 15, 18, 21, 24, 27, and 30 are the multiples of 3.
2. Add natural numbers to the tenth digit of the multiples of 3 to get the multiples of 13. As a result, the 13 times table can be derived as follows: 1+0)3, (2+0)6, (3+0)9, (4+1)2, (5+1)5, (6+1)8, (7+2)1, (8+2)4, (9+2)7, (10+3)0 = 13, 26, 39, 52, 65, 78, 91, 104, 117, 130.
3. The 13 multiplication table does not have any rules that make it easy to remember, but there is a pattern for every ten multiples of three: 13, 26, 39, 52, 65, 78, 91, 104, 117, 130. Students can remember these digits to help them with the 13 times table because the last digit of these multiples always repeats.
Hence, follow the steps to learn table of 13.
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Related Questions
What is the difference between factored form and non-factored form?
Answers
Factored form is a way of expressing a polynomial as a produce of factors, place each factor is a polynomial accompanying a degree of 1 or greater.
Factored form, on the other hand, is the polynomial terms written in polynomial expanded form, outside any universal factors.
What is the difference?Factored and non-factored forms are ways to express polynomial expressions, which involve variables raised to non-negative integer powers with constant coefficients. X² + 3x + 2 is a polynomial expression.
Factored form is expressing it as a product of factors with a degree of 1 or greater. The polynomial x² + 3x + 2 can be factored as (x + 1)(x + 2). Non-factored form is the expanded expression without common factors. The polynomial (x + 1)(x + 2) can be expressed as x² + 3x + 2 in non-factored form. Factored form is a product of factors, while non-factored form is the expanded form without common factors.
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What is 268.8 divided by 56 using division ASAP
Answers
Answer: 4.8
Step-by-step explanation: 268.8 divided by 56 is 4.8
can someone help plz :')
Answers
Answer:
c]
Step-by-step explanation:
A runner is training for a marathon by adding on 4 minutes to the total training time each day. If the runner trains for 24 minutes the first day, which formula represents the total number of minutes the runner will train after n days?
Answers
Answer:
a
Step-by-step explanation:
Add 4 minutes to the 24 minutes each day. Multiply the number of minutes by the time.
which method represents a correct way to solve the equation 2(t−5)=48?
Answers
The solution to the equation 2(t - 5) = 48 is t = 29.
To solve the equation 2(t - 5) = 48, we can use the following steps:
Distribute the 2 to the terms inside the parentheses:
2t - 10 = 48
Add 10 to both sides of the equation to isolate the variable term:
2t = 58
Divide both sides of the equation by 2 to solve for t:
t = 29
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What is the volume of a cylinder with base radius 4 and height 7?
Either enter an exact answer in terms of TT or use 3.14 for I and enter your answer as a decimal.
Khan Academy
Answers
Answer:
π112 or 3.14(112)
Step-by-step explanation:
Answer:
351.86
Step-by-step explanation:
Please help me I will give you extra points and the crown
What is the special angle pair relationship between <1 and <3
Answers
From the given figure , the special angle pair relationship between ∠1 and ∠3 are known as corresponding angles and are congruent.
As given in the question,
From the given figure:
line l is parallel to line m.
t is the transversal of line l and m
Relationship between angles for the parallel lines
∠1 and ∠2 are straight angles and are supplementary
∠3 and ∠2 are interior angles and are supplementary
⇒m(∠1 + ∠2) = m(∠3+∠2)
⇒m∠1= m∠3
Therefore, from the given figure , the special angle pair relationship between ∠1 and ∠3 are known as corresponding angles and are congruent.
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Solve system of differential equations.
dx/dt=2y+t dy/dt=3x-t
show all work, step by step please!
Answers
The solution to the system of differential equations dx/dt = 2y + t and dy/dt = 3x - t is x = y^2 + ty + C1 and y = (3/2)x^2 - (1/2)t^2 + C2, where C1 and C2 are constants of integration.
To solve the system of differential equations dx/dt = 2y + t and dy/dt = 3x - t,
we can use the method of separation of variables.
Here are the step-by-step instructions:
Step 1: Rewrite the equations in a standard form.
dx/dt = 2y + t can be rewritten as dx = (2y + t)dt.
dy/dt = 3x - t can be rewritten as dy = (3x - t)dt.
Step 2: Integrate both sides of the equations.
Integrating the left side, we have ∫dx = ∫(2y + t)dt, which gives us x = y^2 + ty + C1, where C1 is the constant of integration.
Integrating the right side, we have ∫dy = ∫(3x - t)dt, which gives us y = (3/2)x^2 - (1/2)t^2 + C2, where C2 is the constant of integration.
Step 3: Equate the two expressions for x and y.
Setting x = y^2 + ty + C1 equal to y = (3/2)x^2 - (1/2)t^2 + C2, we can solve for y in terms of x and t.
Step 4: Substitute the expression for y back into the equation for x to obtain a final solution.
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Recycle, reuse, and reduce are referred to as the three R's. Which sequence shows the three R's in order from most to least desirable
Answers
Answer:
(1) Reuse; (2) Recycle ; (3) Reduce
Step-by-step explanation:
The ideal sequence would be:
1) Use it again (reuse) if the object still serves its intended purpose/s
2) If not possible to the used again, send it to a recycling plant to extract from it items/parts/substance of utility for other new products
3) if it cannot be reused or recycled, the last option will be to reduce it completely.
I bought a hot chocolate for $1.00. I used only two kinds of coins to make $1.00 with exactly 12 coins. What coins did I use
Answers
The coins used for buying hot chocolate are 8 dimes and 4 nickels.
What are dimes and nickels?
The size of the nickel and dime coins is different, yet they are both silver in color. The dime is smaller than the nickel coin, but having a higher value. The value of each coin can be used to calculate the sum of several coin combinations.
We are given that hot chocolate is bought for $1.00 and only two kinds of coins to make $1.00 with exactly 12 coins.
We know that the value of a nickel is five cents, while that of a dime is ten cents. A dime is therefore equivalent to two nickels in value. The value of a nickel is therefore equal to half the value of a dime.
So, we get that he used 4 nickels and 8 dimes which make 12 coins and 100 cents which is equal to $1.
Hence, the coins used for buying hot chocolate are 8 dimes and 4 nickels.
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Which table shows a proportion relationship between the time spent reading and number of pages read?
Answers
None of them is right.
What is proportionality?The concept of proportionality in mathematics denotes the linear relationship between two numbers or variables. The size of one item increases by twofold, whereas the size of the other quantity decreases by one-tenth of the earlier amount.
Given a table that has work and time spent on that theoretical work has to be proportional to the time such as the Spend time ∝ number of pages read but none of the options match the criteria. Therefore no option is correct for this problem.
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The time constant of RC circuit is the time in which the current decreases to _____ of its initia value
a. 1/10
b. ½
c. 1/√2
d. 1/╥
e. 1/e
Answers
The correct solution to this problem is option e. 1/e. We can find it in the following manner.
The time constant of an RC circuit is the time in which the current decreases to 1/e (approximately 0.368) of its initial value.
This can be derived from the equation for the current in an RC circuit:
\(I=10 * e^({-t/RC} )\)
where I is current at time t, I0 is the initial current, R is the resistance, C is the capacitance, and e is the mathematical constant approximately equal to 2.71828.
To find the time constant, we set the exponent to -1:
\(e^({-t/RC} ) = 1 /e\)
Solving for t/RC, we get:
t/RC = 1
Therefore, the time constant is equal to RC, and the current decreases to 1/e of its initial value in one time constant.
So the answer is e. 1/e.
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please help and do any of them that you can
Answers
B _< -1
2g _< 6
K+2 > 3
Answer:
Sorry but thats too cunfusing for me sorry I couldn't help
Step-by-step explanation:
best of luck
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each system of equations to its graph.
Answers
The groups of equation are as follows;
The y-intercept of equation = 1
The x-intercept of equation = -1/2
And The slope of equation = 2
Then,
At x = 0, y = 1
And at y = 0, x = -1/2
And at x = 2, y = 3
The first and second equation Corresponding with the third graph.
The y-intercept of equation = 0
The x-intercept of equation = 0
The slope of equation = 3
So at x = 0, y = 0 and at x = 2, y = 6
The equation Corresponds with the first graph
The y-intercept of equation = -2
The x-intercept of equation = 2
The slope of equation = 2
So at x = 0, y = -2 and at x = 2, y = 0
The equation Corresponds with the first graph.
The y-intercept of equation = 3
The x-intercept of equation = -2
The slope of equation = 2
So at x = 0, y = 3 and at x = -5, y = 0
The equation Corresponds with the fourth graph.
The y-intercept of equation = 2
The x-intercept of equation = -1/2
The slope of equation = 4
So at x = 0 y = 2 and at y = 0 x = -1/2 and at x = 0.5 y = 4
The equation Corresponding with the second graph.
Help Please!! I will give brainliest!
Answers
90 divided by 6=15
It’s 15 millimeters per DVD case. Then you take 15 and multiply it by 13 to get the total height of the stack of 13 cases.
Hope this helps!
Answer:
15 mm per case is the answer. The full answer is 195 mm.
Step-by-step explanation:
hope this helps:)
1) Solve the following System of Equations by Graphing. Label the solution and all intercepts. (5 points)
4x-2y=8
y=12x+2
Answers
Answer:
ok so u have to -the 12
Step-by-step explanation:
HEPLELW;SLKFLJ;ALAKKJKJ!!!!!!!!11111!!!!!111!111111111111!!!11!
Area A has very high air pressure, while area B has very low air pressure. Which of
the following would be a conclusion you could make?
Soft winds will blow from Area A to Area B.
Soft winds will blow from Area B to Area A.
Strong winds will blow from area A to area B.
Strong winds will blow from Area B to Area A.
Answers
Answer: strong winds will blow from area A to area B
Step-by-step explanation:I hope this helps
make x the subject for y=x-3
Answers
Answer:
x = y + 3
Step-by-step explanation:
y = x - 3 ( add 3 to both sides )
y + 3 = x , that is
x = y + 3
Which equation results from adding the equations in this system? Negative 2 x + y = 8. 5 x minus y = negative 5. 7 x = 13 7 x = 3 3 x = 3 3 x = 13'
Answers
The correct option is second one i.e 7x = 3
Therefore the results from adding the equation in this system are
7x = 3
Equations as,
What is the equation?An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign.
2x+y=8 .......................1
5x-y=-5 .......................2
Result when adding equations 1 and 2 =?
On adding equations 1 and 2 the y term will get canceled and the like terms will combine is add (2x and 5x ) and ( 8 and - 5) as shown below
2x + y = 8
5x - y = - 5
-------------------------------------------
7x + 0 = 3
---------------------------------------------
Therefore the results from adding the equation in this system are 7x=3.
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Answer:
7x=3
Step-by-step explanation:
5x2 - 45=0
Quadratic formula
Answers
Answer:
x=3
Step-by-step explanation:
5x²-45=0 | +45
5x² = 45 | :5
x² = 9 | /9
x = 3
Answer:
x=3,x=-3
Step-by-step explanation:
Use the quadratic formula
where
a=5
b=0
c=-45
which means x=(0±30)/10
so you do (0+30)/10=3
and (0-30)/10=-3
to find your two solutions
8/15-3/15 what’s the answer
Answers
Answer:
1/3
Step-by-step explanation:
8/15-3/15=5/15=1/3
Last year at a certain high school, there were 60 boys on the honor roll and 100 girls on the honor roll. This year, the number of boys on the honor roll increased by 20% and the number of girls on the honor roll increased by 3%. By what percentage did the total number of students on the honor roll increase? round your answer to the nearest tenth (if necessary).
Answers
The percent increase in the total number of students on the honor roll is 9.4% .
In the question,
it is given that ,
last year , the number of boys in the honor roll is = 60 boys ,
the number of girls in the honor roll is = 100 girls ,
total number of students last year = 160
percent increase in the number of boys in the honor roll is = 20% ,
so , number of boys become = 60 + (0.20*60) = 72 boys ,
percent increase in the number of girls in the honor roll is = 3% ,
so , number of girls become = 100 + (0.03*100) = 103 girls ,
total number of students this year = 103 + 72 = 175 .
increase in number of students = 175 - 160 = 15
So , percent increase is = (15/160) × 100
= 0.09375 × 100
= 9.375 %
≈ 9.4%
Therefore , the percent increase is 9.4% .
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Quadrilateral UVWX is a rectangle, UW = y + 36, and VX = 3y. What is the value of y?
Answers
Answer:
y = 18
Step-by-step explanation:
You want the value of y, given a rectangle with diagonals of lengths (y+36) and (3y).
DiagonalsThe diagonals of a rectangle are congruent, so ...
3y = y +36
2y = 36 . . . . . . . subtract y
y = 18 . . . . . . . . . divide by 2
Matthew just inherited $8000 from his grandmother he plans to invest this money into credit union that earns 4% compounded annually. Write an equation to represent the situation let X represent the numbers of years after Matthew invest the money and let Y represent the amount of money that is in the account in dollars
Answers
The equation that represents the situation is given as Y = P (1 + r/n) ^ nt.
Matthew inherited $8000 from his grandmother and he plans to invest this money into credit union that earns 4% compounded annually.
The equation that represents the situation is Y = 8000(1 + 0.04)^X.
Where X represents the numbers of years after Matthew invests the money and Y represents the amount of money that is in the account in dollars.
We know that the formula for compound interest is given by:
P (1 + r/n) ^ nt
Where, P = initial principal balance. r = interest rate. n = number of times interest applied per time period.t = number of time periods elapsed.
So, we are given the following:
Initial principal balance P = $8000Interest rate r = 4%Compound periods per year n = 1Time period elapsed t = X
Therefore, the equation that represents the situation is given as follows;
Y = P (1 + r/n) ^ nt
Where, Y = the future value of the investment = amount in the account. P = the principal or the initial investment = $8000.r = the interest rate = 4% compounded annually. n = the number of times interest is compounded in a year = 1.t = the time or the number of years after Matthew invests the money = X.
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What is the value of sin 2900 + cos 2900 ?
Answers
Answer:
-1.25737973739
Step-by-step explanation:
plz make it brillent ans
Eight pairs of data yield r = 0.708 and the regression equation = 55.8 2.79x. also, = 71.125. what is the best predicted value of y for x = 6.8? Use a=0.05
Answers
The best predicted value of y for x = 6.8, based on the given regression equation, is approximately 74.772.
To find the best predicted value of y for x = 6.8 using the regression equation, we can substitute the given x-value into the equation and calculate the corresponding y-value.
The regression equation is given as:
ŷ = 55.8 + 2.79x
Substituting x = 6.8 into the equation:
ŷ = 55.8 + 2.79(6.8)
= 55.8 + 18.972
= 74.772
Therefore, the best predicted value of y for x = 6.8 is approximately 74.772.
To assess the significance of this prediction, we can calculate the confidence interval using the given value of r = 0.708 and the sample size of 8 pairs of data. However, without the standard error or t-value associated with the regression equation, it is not possible to determine the confidence interval or perform a hypothesis test at the given significance level of α = 0.05.
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2. The ticket for an NBA playoff game is $13,000. Suppose
you have $5,000 saved and every week you save another
$800. You use the following equation to calculate how
much money you have after a certain amount of weeks:
f(w) = 5000 + 800w
What does w represent in this equation?
Answers
Answer:
18,500 because youvadd 500
Which equation represents a line which is perpendicular to the line 5x+2y=12?
A. y = -5/2x + 2
B. y = -2/5x - 4
C. y = 5/2x + 3
D. y = 2/5x - 3
Answers
Casey turned age 65 on May,2020. During the year, she received distributions from her health savings account (HSA) totaling $728.96. She paid for electrolysis
on March 3, 2020 .Casey paid $44.87 to her ENT doctor Junie 4, 2020 and $315 to her chiropractor in July and August . The penalty on Casey's nonqualified distributions is
a.$ 0
B. $63
C $74
D. $146
Answers
The penalty on Casey's nonqualified distributions is a) $0.
The penalty on Casey's nonqualified distributions is $74. Casey turned age 65 on May, 2020 and during the year she received distributions from her health savings account (HSA) totaling $728.96. She paid for electrolysis on March 3, 2020. Casey paid $44.87 to her ENT doctor on June 4, 2020, and $315 to her chiropractor in July and August.
Non-qualified distributions from a health savings account (HSA) before the age of 65 are subject to a 20% penalty. This penalty is imposed in addition to the usual taxes on non-qualified distributions. However, once an account holder reaches the age of 65, the penalty no longer applies, but normal taxes are still imposed.
In this case, Casey was 65 years of age in May 2020. Thus, she is not subject to a penalty on any of her HSA distributions. She received $728.96 in HSA distributions over the year. The penalty on her nonqualified distributions is $0.
Therefore, the correct option is a. $0.
Hence, the penalty on Casey's nonqualified distributions is $0.
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what is the measure of location which is the most likely to be influenced by extreme values in the data set?
a) Range
b) Median
c) Mode
d) Mean
Answers
The measure of location most likely to be influenced by extreme values in the data set is given as follows:
d) Mean
What are the measures of location?The three measures of location in a data-set are given as follows:
Mean: sum of all observations divided by the number of observations.Median: middle value of the data-set.Mode: value that appears the most times in the data-set.From the three definitions above, we can see that the mean is the only measure that is influenced by all observations, hence it is the most affected by outliers, and thus option d is correct.
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