The nth formula of any mathematical expression represents the general formula for the given sequence or series.
nth formula of the given mathematical expression is the way of representing the given sequence or series in standard form.For example nth formula of the arithmetic sequence is given by aₙ= a + ( n - 1 )d.Here aₙ represents the nth term of the sequence.'a' represents the first term of the sequence.'n' represents the number of terms.'d' represents the common difference between the consecutive terms of the sequence.nth term help us to find value of any term without calculating others terms.Therefore, the nth formula is used to represents the mathematical sequence or series in standard form.
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which pair of polygons is similar
Answer:
Step-by-step explanation:
c. trust me im right
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A teacher surveyed her class after they had taken a vocabulary test. Elghteen of the students claimed they had studied
at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The
test results (expressed as a percent) for the two groups are shown below.
Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study. 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Part 1: Calculate the mean of the group that did not study, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that did not study, rounded to the nearest tenth.
Part 3: How many of the scores (from the group that did not study) are more than two mean absolute deviations from the
mean?
Answer:
nuhmkjmkk
Step-by-step explanation:
yg huughbbbbh
Which pair of angles must be supplementary?
1 and 5
5 and 3
4 and 5
4 and 1
Answer:
can you post with pictures, because I can't help you without the image of the question
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See pic attached.
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Good Luck!
Answer:
the cheapest cost would be to buy the large pack as there's a 25% discount resulting in tim only having to pay 38.25 rather than 60 for the small pack
Step-by-step explanation:
Explain in words where this graph is increasing.
Answer:
at the third quadrent the graph is increasing
at third quadrent
The Becks buy a plastic tarp to cover their firewood. A rectangle that is eight and one-third yards long and six and three-fourths yards wide. Part A Which equation models the best estimate for the area of the tarp?
Answer:
56 1/4 yards
Step-by-step explanation:
Area of the tarp = length × width
Length = 8 1/3 yards
Width = 6 3/4 yards
Area of the tarp = length × width
= 8 1/3 yards × 6 3/4 yards
= 25/3 × 27/4
= (25 * 27) / (3 * 4)
= 675 / 12
= 56 1/4 yards
Area of the tarp = 56 1/4 yards
[tex](x + y) ^{2} [/tex]
Answer:
Step-by-step explanation:
(x + y) 2
x2 + 2xy + y2
Answer:
Step-by-step explanation:
This is an example of "the square of a binomial." There is a formula for such cases;
(a + b)^2 = a^2 + 2ab + b^2 (worth memorizing)
Thus, our (x + y)^2 = x^2 + 2xy + y^2
Whoever helps me will have a good day and maybe get kissed by your crush
Answer:
16
Step-by-step explanation:
i totally forgot how to write the equation so i did it the long way and i got with 16 shovels of dirt you get 100 pounds
What is the solution to the following system of equations? (-7x - 4y = 29,
3x - y = -7)*
A. (-5, -8)
B. (1,-9)
C. (0,7)
D. (-3,-2)
Find the area of the shape
Answer:
1725
Step-by-step explanation:
40 is the number of the slope the height is 30.
Which shape has perpendicular diagonals,two pairs of adjacent sides that are congruent,and no parallel sides?
Answer:
quadrilateral has perpendicular diagonals
What is the measure of the unstable Angle of the triangle below?
Options:
A- 90
B- 82
C- 98
please helpppppppppppppp
Answer:
x=90
Step-by-step explanation:
3x-160 = x+20. Why you may ask? they are corresponding angles which makes them congruent. 2x = 180, so x = 90
Answer:
90
Step-by-step explanation:
angle 1 and 4 are equivalent so:
3x - 160 = x + 20
_________________
3x - 160 = x + 20
+160 I +160
3x = x + 180
- x I - x
2x = 108
÷2 I ÷2
x = 90
The graphs of which of these pairs of linear equations intersect at the point (-3, 2)? Select all that apply.
A 6x - y = 15
-3x + 4y = -18
B. 2x + y = -4
3x + 2y = -5
C. X + 8y = 19
4x - 5y = 2
D. 8x + y = 22
-2x - 5y=4
E5x - y = -17
x + 4y = 5
Answer:
Options B and E.
Step-by-step explanation:
We want to see for which systems the point (-3, 2) is a solution (a solution of a system means that both equations intersect in that point).
The point (-3, 2) is a solution of the system only if this point belongs to both linear equations in the system.
Then for each system, we need to replace x by -3 and y by 2 in both equations and see if the equality is true or not.
A)
6x - y = 15
-3x + 4y = -18
In the first equation we have:
6*(-3) - (2) = 15
-18 - 2 = 15
-20 = 15
This is false, so we can discard option A.
B)
2x + y = -4
3x + 2y = -5
In the first equation we have:
2*(-3) + 2 = -4
-6 + 2 = -4
-4 = - 4
This is true, now let's look at the other equation.
3*(-3) + 2*(2) = -5
-9 + 4 = -5
-5 = - 5
This is also true, then the point (-3, 2) is a solution for both equations, then the point (-3, 2) is a solution for the system.
C)
x + 8y = 19
4x - 5y = 2
In the first equation we have:
(-3) + 8*(2) = 19
-3 + 16 = 19
13 = 19
This is false, then we can discard option C.
D)
8x + y = 22
-2x - 5y=4
In the first option we have:
8*(-3) + 2 = 22
-24 + 2 = 22
-22 = 22
This is false, so we can discard option D.
E)
5x - y = -17
x + 4y = 5
In the first option we have:
5*(-3) - (2) = -17
-15 - 2 = -17
-17 = -17
This is true, now let's look at the other equation:
(-3) + 4*(2) = 5
-3 + 8 = 5
5 = 5
This is also true, then the point (-3, 2) is a solution for both equations in the system, which means that the point (-3, 2) is a solution for the system.
Then the correct options are B and E.
How many feet are in 32 yards?
384 feet
320 feet
96 feet
35 feet
Answer:
96 feet
Step-by-step explanation:
Answer:
32 yards is equal to 96 feet. Hope this helped!! :D
Find the value of x.
Answer:
e
Step-by-step explanation:
For breakfast, Sarah can choose eggs, granola or oatmeal as a main course, and orange juice or milk for a drink. Sarah says that the sample space for choosing one of each contains 32 = 9 outcomes. What is her error? Explain. Because there are choices for the first item and for the second, there are possible outcomes.
Answer:
The explanation is given below
Step-by-step explanation:
Her error is that she multiplied the possibilities of her meal that involves eggs with milk, granola & oatmeal but the possibilities involves orange juice with egg and granola & oatmeal
Now
If she choose milk so she can select eggs, granola, and oatmeal so there are 3 possibilities also with the orange juice there is 3 possibilities
So, the sample space is
= 3 + 3
= 6 outcomes
hello i need help fast
Answer:
486
Step-by-step explanation:
3/10 = N/10
Find the missing value to write an equivalent fraction.
Multiply the numerator and denominator by
.
The missing numerator is
.
Answer:
3 = N
Step-by-step explanation:
Multiply the numerator and denominator by 10:
10(3/10) = 10(N/10) becomes 3 = N
Please help with #6 and #15. Thank you!
Answer:
its s and d
Step-by-step explanation:
The table below shows the low temperature in a town each day for four days. Which of the following lists the temperatures in order
from least to greatest?
Answer: 1,-3,5,-8
Step-by-step explanation: I have the same questions
Graph a line with a slope of -3 that contains the point (4, -2).
(Just tell me where to put the points please)
Answer:
(4, -2), (3, 7), (5, 1), (6, -2), (7, -5)
Step-by-step explanation:
These are a few of the points, so you can just connect them!
Hope this helped! :)
Answer:
Step-by-step explanation:
If you have both the slope and a point on the line, use the point-slope formula y - k = m(x - h), which here is y + 2 = -3(x - 4).
Now you can choose a few x values at random and calculate the associated y values. Let's try x = -1, x = 3, x = 0:
For x = -1: y + 2 = -3(-1 - 4), or y = -2 -3(-5) = -2 + 15 = 13. The point is (-1, 13).
For x = 3, we get y + 2 = -3(-1), or y = -2 + 3 = 1. The point is (3, 1).
For x = 0, y = -2 - 3(-4), or y = -2 + 12 = 10. The point is (0, 10).
Plot these three points and draw a line through them.
25 POINTS
On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm, m∠A=80°, and m∠B=50°.
What is AC?
Answer:
6
Step-by-step explanation:
If you try to draw the triangle, it forms an isosceles triangle.
side AB has a length of 6cm. Side AB = Side AC. So the length of Side AC is also 6 cm.
Answer:
6cm
Step-by-step explanation:
Can someone please help me on this ????
Answer:
x = 5
Step-by-step explanation:
Also in this case we can use the Pythagorean theorem in this way
x^2 + (5√3)^2 = 10^2
x^2 + 75 = 100
x^2 = 25
x = +/- 5
we take only the positive value because a lenght can’t be negative
x = 5
Help, please! I need to get this done. :(
Answer:
saw this question on egde its b
increase 320g in a ratio 5:2
Answer:5/2/320=900
Step-by-step explanation:
What is the value of x?
Answer:
Step-by-step explanation:
2x + 12 + x + 1 + x+ 4
2x + x + x = 4x
12 + 1 + 4 = 17
Please help with this
Answer:
Hey mate.....
Step-by-step explanation:
This is ur answer.....
Step 1 :-
18.12+ 93.3 111.42Step 2 :-
111.42 - 16.7 94.72Hope it helps!
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Answer:
A
Step-by-step explanation:
1/2f
What is the explicit rule for the arithmetic sequence shown in the graph?
Answer:
a(n) = 9.5 + 2(n - 1)
Step-by-step explanation:
Observe that each new term is obtained by adding 2 to the previous term. Thus, the common difference is 2 and the first term is 9.5.
Then a(n) = 9.5 + 2(n - 1)