Answer:
B
Step-by-step explanation:
Complete the table for the arithmetic sequence.
Airthemetic Sequence : arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.
It express as :
[tex]a_n=a_1+(n-1)d[/tex]In the given question the 88 term is ( 25)
Substitute the value in the expression of n terms
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{for : n =25, a}_n=88,a_1=(-8) \\ a_n=a_1+(n-1)d \\ 88=(-8)+(25-1)d \\ 88=-8+24d \\ 88+8\text{ =24d} \\ 24d=96 \\ d=\frac{96}{24} \\ d=4 \end{gathered}[/tex]In the given Airthmetic sequence the constant difference, d = 4
Now for the position of term 8
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{for a}_n=8,a_1=(-8),\text{ d =4} \\ 8=-8+(n-1)4 \\ 16=4(n-1) \\ 4=n-1 \\ n=5 \end{gathered}[/tex]for n= 5 terms is 8
Now for the term of position 8:
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{for n=8, a}_1=(-8),d=4 \\ a_n=-8+(8-1)4 \\ a_n=-8+7\times4 \\ a_n=20 \end{gathered}[/tex]So, the term with position 8 is 20
Now for the position of term 36 :
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{for :a}_n=36,a_1=(-8),\text{ d = 4} \\ 36=-8+(n-1)4 \\ 36+8=4(n-1) \\ 44=4(n-1) \\ n-1=\frac{44}{4} \\ n-1=11 \\ n=10 \end{gathered}[/tex]Thus, for n = 10, an = 36
Now, for the term of position 19
[tex]\begin{gathered} a_n=a_1+(n-1)d \\ \text{for n=19, d=4, a}_1=(-8) \\ a_n=-8+(19-1)4 \\ a_n=-8+(18)4 \\ _{}a_n=-8+72 \\ a_n=64 \end{gathered}[/tex]Thus at n = 19 the term i 64
4 over 15 divided by 10 over 13
4/15 = 3.75
10/13 = 1.3
you have to divide it from its higher number or you'll get something like this: 0.7692307692307692 but if it helps it = 0.00205128205
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Question 8 of 15
Triangle ABC with vertices A(-1, 2), B(-1, -2), and C(-4,-2) is dilated by a scale factor of 2 to form triangle A'B'C'.
у
A
C
4321
-4-3-2-10 이 1234
1
OHN 3 +
B
+2+
-3+
Submit Test
-4-
What is the length, in units, of side A'B'?
units
2223 Math Grade 8 IA1
X
The formula that most accurately captures the dilatation that Triangle ABC underwent to produce A'B'C will be:
(x, y) → (1/2x, 1/2y)
Detailed explanation?
A triangle's vertices are given.
A(-2, -4) (-2, -4)
B(2, -4) (2, -4)
C(-8, -4) (-8, -4)
The vertices of an image triangle should be after the dilatation
A' (-1, -2) (-1, -2)
B '(1, -2) (1, -2)
C' (-4, -2) (-4, -2)
If we look attentively, we can see that the vertices of the image triangle, A'B'C', make up half of the original triangle ABC.
For example, (x, y) (1/2x, 1/2y)
verification
A(-2, -4) → A'(-2/2, -4/2) = A'(-1, -2) (-1, -2)
B(2, -4) → B'(2/2, -4/2) = B'(1, -2) (1, -2)
C(-8, -4) → C'(-8/2, -4/2) = C'(-4, -2) (-4, -2)
As a result, it is confirmed, and we come to the conclusion that the rule that best captures the dilatation that Triangle ABC underwent to form A'B'C' will be:
(x, y) → (1/2x, 1/2y)
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A theatre has 30 rows of seats there are 22 seats in the first row 26 in the second row 30 in the third row etc how many people will the theatre hold
Using the arithmetic progression, If a theatre has 30 rows of seats there are 22 seats in the first row,26 in the second row, 30 in the third row, then the total number of people that the theatre hold is 2400
The total number of rows = 30
Number of seats in the first row = 22
Number of seats in the second row = 26
Number of seats in the third row = 30
Common difference= Second term - first term
= 26-22
= 4
The given sequence is in arithmetic progression
Sum of n terms = [tex]\frac{n}{2}[2a+(n-1)d][/tex]
Substitute the values in the equation
= [tex]\frac{30}{2}[2(22)+(30-1)4][/tex]
= 15[44+29×4]
= 15[44+116]
= 15×160
= 2400
Hence, using the arithmetic progression, if a theatre has 30 rows of seats and there are 22 seats in the first row,26 in the second row, 30 in the third row, then the total number of people that the theatre hold is 2400
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use the rectangle diagram at the right.Write and solve an inequality to find the value of x for which the perimeter of the rectangle is less than 120.
The perimeter is the sum of all the sides of a geometric figure, so
[tex]\begin{gathered} (x+4)+x+(x+4)+x<120 \\ x+4+x+x+4+x<120 \\ 4x+8<120 \end{gathered}[/tex]To resolve this inequality you can first subtract 8 from both sides
[tex]\begin{gathered} 4x+8-8<120-8 \\ 4x<112 \end{gathered}[/tex]Then you divide by 4 on both sides of the inequality
[tex]\begin{gathered} \frac{4x}{4}<\frac{112}{4} \\ x<28 \end{gathered}[/tex]Therefore, for the perimeter of the rectangle to be less than 120, its shortest side must measure less than 28.
Molly is making peanut butter cookies to make a batch of cookies. She needs 3/4 cups of peanut butter 1.5 cups of sugar and 1 egg if Molly is 3 cups of peanut butter, 9 cups of sugar and 5 eggs how many batches can she make
P (A) =0.17, P (A and B) =0.06, FIND P (B)
Answer:
P(B) = 0,35
Step-by-step explanation:
P(B) = P(A and B) divided by P(A)
Para resolver una operación matemática ¿por qué es importante
primero conocer los signos y los números?
Answer:
para hacer la repuesta xd
How do i solve this problem?
The function exists a Power function. The power of function is 3 and the constant variation is - 1/3
What is meant by Power function?Any function where y = x n, where n is any real constant integer, is referred to be a power function. In reality, many of our parent functions, including linear and quadratic functions, are power functions. A few other power functions are y = x³, y = 1/x, and y = x squared.
A parameter function used in statistical testing that represents the likelihood of rejecting the null hypothesis for a given value of the parameter, assuming that value is true.
Therefore, the power of function is 3 and the constant variation is - 1/3.
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In a far away galaxy are two planets named Eenie and Meenie. Planet Eenie has
population of approximately 72,980,001, and Planet Meenie has a population o
approximately 54,908. About how many times greater is the population of Plan
Eenie than the population of Planet Meenie?
► 0:00/0:50
1.4 x 103
7.14 x 10-4
1.4 x 104
7 11 v 103
-
⠀
Population of Planet Eenie is 1.4 × [tex]10^{3}[/tex] times greater than the population of Planet Meenie.
Two planets named Eenie and Meenie.
Population of Planet Eenie = 72,980,001
Population of Planet Meenie = 54,908
We need to find how many times greater is the population of Planet
Eenie than the population of Planet Meenie. So, we need to follow the steps written below:
( Population of Planet Eenie / Population of Planet Meenie )
= ( 72,980,001 / 54,908 )
= 1329.1323
= 1.33 × [tex]10^{3}[/tex]
This calculated value is near option 2 i.e., 1.4 × [tex]10^{3}[/tex]. So, 1.4 × [tex]10^{3}[/tex] is the correct option.
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A. 3/5B.4/5C.3/4D.4/3
The tangent relation is given by the length of the opposite side to the angle over the length of the adjacent side to the angle.
So we have:
[tex]\begin{gathered} \tan (\beta)=\frac{AC}{BC} \\ \tan (\beta)=\frac{3}{4} \end{gathered}[/tex]Therefore the correct option is C.
Cos(x)=-11/28, sin(x/2)
By using a trigonometric identity, we will see that the value of sin(x/2) is:sin(x/2) = ±√39/√56 = ± 0.834
How to find the value of sin(x/2)?Here we need to use the identity: (sin(x/2))^2 = (1 - cos(x))/2
So, we know that:
cos(x) = -11/28
Then:
(1 - cos(x)) = 1 + 11/28 = 28/28 + 11/28 = 39/28
Replacing the identity that we get:
(sin(x/2))^2 = (1 - cos(x))/2 ]= (39/28)/2 = (39/56)
Now we can apply the square root in both sides, so we will get:
sin(x/2) = ±√(39/56)= ±√39/√56 = ± 0.834
So, the value of sin(x/2) can be either 0.834 or -0.834.
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find the exact perimeter of hexagon ABCDEF plotted below
The perimeter of the hexagon ABCDEF is 36.01.
Given,
The hexagon ABCDEF
We have given the points:
A(-6, 2), B(1, 5), C(6, 5), D(6, -1), E(1, -3), F(-6, -3)
We have to find the perimeter of hexagon.
Perimeter of hexagon = AB + BC + CD + DE + EF + FA
Now,
Distance formula is as [tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
So,
Distance of AB,A(-6, 2), B(1, 5) : x₁ = 1, x₂ = -6, y₁ = 2, y₂ = 5
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(1-(-6))^{2} +(5-2)^{2} }[/tex]
=[tex]\sqrt{7^{2} +3^{2} }[/tex]
= [tex]\sqrt{49+9}[/tex]
= √58
= 7.62
Distance of BC,B(1, 5), C(6, 5) : x₁ = 1, x₂ = 6, y₁ = 5, y₂ = 5
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(6-1)^{2}+(5-5)^{2} }[/tex]
= √5²
= 5
Distance of CD,C(6, 5), D(6, -1) : x₁ = 6, x₂ = 6, y₁ = 5, y₂ = -1
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(6-6)^{2}+(-1-5)^{2} }[/tex]
= √-6²
= 6
Distance of DE,D(6, -1), E(1, -3) : x₁ = 6, x₂ = 1, y₁ = -1, y₂ = -3
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(1-6)^{2}+(-3-(- 1))^{2} }[/tex]
= [tex]\sqrt{(-5)^{2} +(-3+1)^{2} }[/tex]
= [tex]\sqrt{25 + 4}[/tex]
= √29
= 5.39
Distance of EF,E(1, -3), F(-6, -3) : x₁ = 1, x₂ = -6, y₁ = -3, y₂ = -3
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(-6-1)^{2}+(-3-(-3))^{2} }[/tex]
= √-7²
= 7
Distance of FA,F(-6, -3), A(-6, 2) : x₁ = -6, x₂ = -6, y₁ = -3, y₂ = 2
[tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(-6-(-6))^{2} +(-3-(2))^{2} }[/tex]
= √-5²
= 5
So, we have
AB = 7.62
BC = 5
CD = 6
DE = 5.39
EF = 7
FA = 5
Now,
Perimeter of hexagon = AB + BC + CD + DE + EF + FA
Perimeter of hexagon= 7.62 + 5 + 6 + 5.39 + 7 + 5
Perimeter of hexagon = 36.01
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Divide and solve: r^2/r^12
Given:
[tex]\frac{r^2}{r^{12}}[/tex]Let's solve using law of indices below:
[tex]\frac{a^m}{a^n}=a^m\ast a^{-n}=a^{m-n}[/tex]Using the same method, we have:
[tex]\frac{r^2}{r^{12}}=r^2\ast r^{-12\text{ }}=r^{2-12}=r^{-10}[/tex]ANSWER:
[tex]r^{-10}[/tex]1.)Based on the average.how many people will usethe ramp each week? Setup ratio.2.) What will the surface areaof the ramp be? Writeequation & solve. Roundto the nearest hundredth.3.) What percentage of thepeople do not need theramp?4.) How high will the ramp be9 feet from the front walk?Draw a diagram & solve.5.) How high will the ramp be6 feet fromthe front walk?Draw a diagram & solve.Please help with these questions.thank you.
1)
Let:
N = Total people every week = 207
r = People which needs a ramp = 1:9 = 1/9
So:
[tex]N\cdot r=207\cdot\frac{1}{9}=23[/tex]Answer: 23 people
2)
[tex]\begin{gathered} SA=b\cdot h+pw \\ _{\text{ }}where\colon \\ b=18ft \\ h=4ft \\ p=b+h+l \\ l=\sqrt[]{h^2+b^2} \\ l=\sqrt[]{340} \\ w=4.75ft \end{gathered}[/tex]Therefore:
[tex]\begin{gathered} SA=72+192.09 \\ SA=264.09ft^2 \end{gathered}[/tex]3)
The percentage of the people that don't need the ramp will be given by:
[tex]1-r=1-\frac{1}{9}=\frac{8}{9}\approx0.89[/tex]Answer: Approximately 89%
4)
[tex]\begin{gathered} h=\sqrt[]{(\sqrt[]{340})^2-9^2} \\ h=\sqrt[]{259} \\ h\approx16.09ft \end{gathered}[/tex]5)
[tex]\begin{gathered} h=\sqrt[]{(\sqrt[]{340})^2-6^2} \\ h=\sqrt[]{340} \\ h\approx17.44ft \end{gathered}[/tex]Sarah is working towards paying off the rest of her student loan. The graph models the amount owed, in dollars, for x months. What does the slope represent?
The slope of the graph that models the amount Sarah owed after a given number of x months, represents the monthly payment Sarah makes to repay the loan
What is a monthly payment on a loan?Monthly payment on a loan is the payment made each month within the period specified in the loan, to repay the loan and the interest on the loan.
The given parameters of the graph are;
Information on the graph = The amount owed for a number of x months
Taking the y–axis (Vertical axis) of the graph as specifying the amount owed given in Dollars, and the x–axis as the number of months of payment, we have;
[tex] \displaystyle{Slope = \frac{\Delta y}{\Delta x}} [/tex]
Where;
∆y = Change in the amount Sarah owes
∆x = Change in the time
Which gives;
[tex] \displaystyle{Slope = \frac{Change\: in\: the\: amount \:owed}{Change\: in\: time }}[/tex]
Whereby the graph is a straight line graph, we have;
The slope = Constant
Therefore, the change in the amount owed over a given time frame such a month, is constant
Which gives;
The slope represents the amount by which the Sarah's student loan changes each month, which is equivalent to and therefore;
The amount Sarah repays each month (monthly payments on the loan) towards paying off the student loan.Learn more about calculating the monthly payment on a loan here:
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Elizabeth drew a right triangle and labeled the sides as follows: leg lengths = 5 inches and 8 inches, hypotenuse = 14 inches. Can the side lengths form a right triangle? Explain your reasoning. I need a good explaination
X_X
The side length of the triangle Elizabeth drew cannot form a right triangle.
How to find the sides of a right triangle?A right triangle is a triangle that has one of its angle as 90 degrees.
The sides of a right triangles are hypotenuse side, adjacent side and the opposite side. This is base on the angle position.
Right triangle obeys Pythagoras's theorem.
a² + b² = c²
where
a and b are the legs of the right trianglec is the hypotenuse side of the right triangle.Therefore, let's test if the labelled side of the triangle Elizabeth drew is a right triangle. We will use Pythagoras theorem to confirm it
5² + 8² = 14²
25 + 64 = 196
Therefore,
89 ≠ 196
Therefore, the side length cannot form a right triangle
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Four friends have $525 that they want to share equally. To start, they divide the money so that each friend gets a $100 bill. What is the most useful next step?
If four friends have $525 that they want to share equally and they divide the money so that each friend gets a $100 bill, then next step will be divide the remaining money so that each friend gets a $31.25
Total money the have = $525
they divide the money so that each friend gets a $100 bill
The amount of money they split equally = 4×100
= $400
Remaining money = 525-400
= $125
Split the remaining money into 4 = 125/4
= $31.25
Hence, If four friends have $525 that they want to share equally and they divide the money so that each friend gets a $100 bill, then next step will be divide the remaining money equally so that each friend gets a $31.25
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Name the property, if any, that is illustrated below
The given expression xy = yx represents the cumulative property of multiplication.
What is cumulative property?If altering the operands' order has no effect on the outcome, the binary operation is commutative in mathematics. Numerous binary operations share this essential characteristic, and numerous mathematical arguments rely on it.
The given expression is xy = yx.
The expression xy = yx is representing the cumulative property of multiplication. According to this property, the value of the expression will remain the same after the order is changed.
Let x = 5 and y = 10. Now verify the cumulative property of multiplication.
xy = yx
5 x 10 = 10 x 5
50 = 50
Therefore, the given expression xy = yx represents the cumulative property of multiplication.
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solve the inequality and describe the graph of the solution.[tex]4x - 5 \geqslant 7[/tex]
The given expression is :
[tex]4x-5\ge7[/tex]To simplify the expression for x :
Add 5 on both side :
[tex]\begin{gathered} 4x-5+5\ge7+5 \\ 4x\ge12 \end{gathered}[/tex]
Divide the expression by 4 on both side :
[tex]\begin{gathered} 4x\ge12 \\ \frac{4x}{4}\ge\frac{12}{4} \\ x\ge3 \end{gathered}[/tex]Thus : x ≥ 3
The graph is :
Since x is greater than or equal to 3
So, it is closed on 3
Answer :
The graph has a closed circle on 3 and is shaded to the right of the origin
What can be concluded about the line represented in the table? Select 3 options.
x
y
–6
–7
2
–3
8
0
The slope is 2.
The slope is One-half.
The y-intercept is –4.
The y-intercept is 8.
The points (–2, –5) and (8, 0) are also on the line.
The points (–5, –2) and (1, 10) are also on the line.
Conclusions that can be made about the line in the table include:
The slope is One-half.The y-intercept is –4.The points (–2, –5) and (8, 0) are also on the line.How to find the slope of a line?The slope of a line is found by the formula:
= Change in y / Change in x
Two points from the table:
(-6, -7) (2, -3)
Slope is:
= (-3 - (-7)) / 2 - (-6))
= 4 / 8
= 1/2
The y-intercept is:
y = Slope (x) + y-intercept
-3 = 2(1/2) + y-intercept
y-intercept = -3 - 1
y-intercept = -4
Points on the line as shown on the table:
(-2, -5) and (8,0)
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The ratio of boys to girls in Fiona's class is
1 to 3. There are 24 students in the class.
How many of the students are girls?
Answer:
Step-by-step explanation:
Given,
The ratio of boys to girls in Fiona's class is 1:3
The total student in the class is 24
To find,
how many students are girls
Solution,
It is clear that the total number of boys and girls is 24
i.e., boys + girls=24 ------ (equation 1)
Let the ratio be in the terms of x
Consider boys ratio as x
And the girl's ratio as 3x
Now as per the equation 1,
x + 3x= 24
4x= 24
x= 6
Hence, Boys (x)= 6
And Girls (3x)= 3× (6)= 18
You can verify it by adding 6+18= 24
the area of rectangular pool
Answer:
multiply length times width.
Step-by-step explanation:
Find the savings plan balance after 3 years with an APR of 7% and monthly payments of $100.
The savings plan balance (future value) after 3 years with a 7% APR and monthly payments of $100 is $3,993.01.
What is the future value?The future value is the present value or cash flows compounded at an interest rate for a period.
The future value can be computed using an online finance calculator.
N (# of periods) = 36 months
I/Y (Interest per year) = 7%
PV (Present Value) = $0
PMT (Periodic Payment) = $100
Results:
FV = $3,993.01
Sum of all periodic payments = $3,600 ($100 x 36)
Total Interest = $393.01
Thus, at the end of 3 years, the saving plan balance grew to a future value of $3,993.01.
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A flower bed is in the shape of a triangle with one side twice the length of the shortest side and the third side is 21 feet
more than the length of the shortest side. Find the dimensions if the perimeter is 121 feet.
What is the length of the shortest side?
The length of the shortest side is
Answer: 25 ft
Step-by-step explanation:
Let the shortest side be s. Then, the other two sides are 2s and s+21.
[tex]s+2s+s+21=121\\\\4s+21=121\\\\4s=100\\\\s=25[/tex]
Jumbo shrimp are defined as those that require 10 to 15 shrimp to make a pound. Suppose that the number of jumbo shrimp in a 1-pound bag
averages u 12.5 with a standard deviation of a 1.5 and forms a normal distribution. Using the Distributions tool, find the probability of random
picking a sample of n = 25 1-pound bags that average more than M = 13 shrimp per bag.
Standard Deviation - 1.0
The probability of randomly picking a sample of n 25 1-pound bags that average more than M - 13 shrimp per bag is p =
Answer:
0.0475
Step-by-step explanation:
Assume that 600 births are randomly selected and 309 of the births are girls. Use subjective judgment to describe the
number of girls as significantly high, significantly low, or neither significantly low nor significantly high.
Choose the correct answer below.
A. The number of girls is significantly low.
B. The number of girls is neither significantly low nor significantly high.
C. The number of girls is significantly high.
D. It is impossible to make a judgment with the given information.
Option b. The number of girls is neither significantly low nor significantly high.
How is the subjective judgement given?
Total number of births selected= 600
Half of the total number = 300
Number of girls = 309
As we can see, the number of girls is slightly higher than the half and not significantly higher . Therefore I can subjectively describe and conclude that the number 309 is neither significantly low nor significantly high. The total population of boys and girls are almost similar.What is subjective judgement ?
Subjective judgement is something that is based more on the individual's thoughts and feelings than on actual facts. The dominating eigenvector of a matrix of paired comparisons is a widely used technique for quantifying subjective judgement .To learn more about population, refer:
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Discrete Math19. Rolling the Dice An experiment was conducted in whichtwo fair dice were thrown 100 times. The sum of the pipsshowing on the dice was then recorded. The following fre-quency histogram gives the resultsSum of Two Dice252015Frequency1032 3 4 5 6 7Value of Dice9 10 11 12(a) What was the most frequent outcome of the experi-ment?(b) What was the least frequent?(c) How many times did we observe a 7?(d) Determine the percentage of time a 7 was observed,(e) Describe the shape of the distribution
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data:
frequency histogram
Step 02:
discrete math:
sum of two dice:
we must analyze the graph to find the solution.
most frequent outcome:
value of dice = 8
frequency = 20
least frequent outcome:
value of dice = 2
frequency ≅ 2
how many times (7):
15 times (frequency)
percentage of times (7):
percentage (7) = (15 / 100) * 100%
percentage (7) = 15%
shape of distribution:
non-symmetric, bimodal
That is the full solution.
What is a formula for the nth term of the given sequence 15,24,33
Answer:
87
Step-by-step explanation:
the whole sequence would be 15, 24, 33, 42, 51, 60, 69, 78, 87
What do all rectangles have that some parallelograms do not have?
A. Opposite angles that are congruent
B. Diagonals that are congruent
C. Opposite sides that are congruent
D. Diagonals that bisect each other
Answer:
B. Diagonals that are congruent