Answer:
a(n)= a + (n - 1)d
a(n) = 17 - 3n
Step-by-step explanation:
14, 11, 8 , 5 , ...
The given sequence above is an Arithmetic sequence and the explicit formula is given as:
a(n) = a + (n - 1)d
Where
a = First term = 14
n = number of terms
d = common difference
The common difference =
Second term - First term or Third term - Second term
= 11 - 14 or 8 - 11 or 5 - 8
= -3
Therefore, the explicit formula for the nth term a(n) is written as:
a(n) = 14 + (n - 1)-3
a(n) = 14 -3n + 3
a(n) = 14 + 3 - 3n
a(n) = 17 - 3n
The explicit formula a(n) =
a(n) = 17 - 3n
Which one is the correct one
Step-by-step explanation:
Sum of opposite angles are supplementary,
x + 60 + 3x = 180
4x + 60 = 180
4x = 180 - 60
4x = 120
x = 120 / 4
x = 30
select ALL the answers that are correct.
Answer:
A,C
Step-by-step explanation:
help me BRAINLES tysm
In the diagram, the measure of angle 8 is 124º, and the measure of angle 2 is 84°
Answer:
whats the question?
Step-by-step explanation:
Answer:
Angle 7 = 56 °
Step-by-step explanation:
Angles 8 and 7 = 180 degrees
To get the degree of angle 7 subtract 124 from 180
180 - 124 = 56 degrees
Angle 7 = 56 degrees
a number times 12 is 72. which equation fits this statement?
Answer:
12x = 17
Step-by-step explanation:
So, this is a standard variable equation, so a number (I did x because I'm basic) times, multiplied by, whatever 12 = 72
So a number times 12 is 72 = 12x = 17
Now, if you wanted to actually solve this equation, you just have to do inverse operations:
17 ÷ 12 = 1.4167 (rounded)
So x = 1.4167
hope this helps:)
PLEASE HELP!
Write the equation of a parabola with focus (−2,4) and directrix = 6.
SHOW YOUR WORK!!
What is the mean of the values in the dot plot?
Answer:
Mean=19.5
Step-by-step explanation:
Mean= (16x1 + 17x4 + 19x4 + 21x1 + 22x2 + 23x1 + 25x1)/14=273/14=19.5
HELP IM SORRY PLESAADNSKSKSNX
Answer:
hey, what is your question?
Step-by-step explanation:
Answer:
wheres the question
Step-by-step explanation:
Can someone do this plsssss I need it for right now
Answer:
C
Step-by-step explanation:
If you count the hours by how much each answer choice is giving you, you will get the answer. (First job is 4 hours and a few mins. Answer choice C is $6 an hour. So 4 times 6 is 24 plus the extra minutes.)
Solve for z: 10 = 2 = -25(4z -3)
Answer:
z = 13/20
Step-by-step explanation:
The steps are in the pictures below!
A circle is centered on point B. Points A, C and D lie on its circumference.
If ZABC measures 40°, what does ZADC measure?
Given:
A circle is centered on point B.
Points A, C and D lie on its circumference.
If [tex]m\angle ABC[/tex] measures 40°.
To find:
The [tex]m\angle ADC[/tex].
Solution:
Central angle theorem: According to this theorem, the central angle is equal to the twice of inscribed angle on the same intercepted arc.
In the given figure [tex]\angle ABC[/tex] is the central angle and [tex]m\angle ADC[/tex] is the inscribed angle on the same arc AC.
Using central angle theorem, we get
[tex]m\angle ABC=2m\angle ADC[/tex]
[tex]40^\circ=2m\angle ADC[/tex]
[tex]\dfrac{40^\circ}{2}=m\angle ADC[/tex]
[tex]20^\circ=m\angle ADC[/tex]
Therefore, the measure of angle ADC is 20°.
A rectangular front porch has a perimeter of 46 feet. Its area is 126 square feet. What are
the dimensions of the porch?
Answer:
9ft by 14ft
Step-by-step explanation:
Area:
9 x 14 = 126
Perimeter:
9 + 9 + 14 + 14 = 46
-6 + 7k = -7(1 - k) solve this equation with 1 answer please
Answer: 13
Step-by-step explanation:
-6 + 7k = -7(1 - k)
(-7 x -1 = 7)
(-7 x -k = 7)
-6 +7k = 7+7k
7k-7k = 6+7
k = 13
( 0 always equals to the pronumeral given
BRAINLY TO WHOEVER HELPS
Determine which of the following could NOT represent the sides of a right triangle.
A) 3,4,5
B) 1,2,3
C) 5,12,13
D) 6,8,10
Answer:
A, C and D
Step-by-step explanation:
B is left out because the hypotenuse of 1 and 2 will be appx 2.24 but the rest are good to go
Which number line represents the solution for 5x greater than 30
It's G bc of the full dot and the line going up.
Solve the following inequality
x−3>7
Question 3 options:
x>10
x<10
x>4
x<4
Answer:
x>10
Step-by-step explanation:
x-3>7
x>7+3
x>10
(When switiching sides, you do the opposite operation hence you add 3 when it goes onto the other side)
Hope it helps!
Answer:
x > 10
Step-by-step explanation:
x - 3 > 7
+ 3 +3
x > 10
b.
Assume the trend in the numbers of users tripling each year was true for all years from 2001 to
2009. Complete the table below using 2005 as year 1 with 3 million as the number of users that
year.
-3
-2
-1
0
1
2
3
4
5
Year
# of
users in
millions
3
PLZZZ HELPPPP, How many 2 inch cubes will fit into the box below if it is filled completely full?
Answer:
30 cubes
Step-by-step explanation:
10 x 4 x 6 = 240 in³
2 x 2 x 2 = 8 in³
240/8 = 30 cubes
Answer:
I believe 240
Step-by-step explanation:
Since ur multtiplying
10 times 4 times 6 you get 240
Solve for x and y simultaneously if:
x+4=2y and y2-xy+21=0
Answer:
Step-by-step explanation:
x=−10, y=−3
x=10, y=7
y=7,x=10
y=−3,x=−10
3x+3=108 PLSSS help Giving brainliest!!
Answer:
x=35
Step-by-step explanation:
3x+3=108
3x=108-3
3x= 105
x= 105/3
x=35
What are the answers I will give brainlyest
Answer:
The answer to number 7 is x=4
please help I have no clue how to do this
Step-by-step explanation:
It's a question of trigonometry.
You need to remember that tangent (tan) stands for Perpendicular / Base.
So, tan P = QR / PR
By Pythagoras Theorem,
34² = 30² + x²
x² = 34² - 30²
x² = 1156 - 900
x² = 256
x = 16
Now, placing the values,
tan P = 30 / 16
tan P = 1.875
HOPE IT HELPS ^_^
On a coordinate plane, triangle A B C is shown. Point A is at (0, 0), point B is at (3, 4), and point C is at (3, 2).
What is the area of triangle ABC?
2.5 square units
3 square units
3.5 square units
4 square units
Answer:
It is B. 3 square units, i took the test and got a 100%
Step-by-step explanation:
edge2021
The area of the triangle on a coordinate plane is 3 square units option (B) 3 square units is correct.
What is the triangle?In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have a triangle on a coordinate plane shown in the picture.
Triangle ABC has vertices A, B, and C at (0, 0), (3, 4), and (3, 2).
As we know, the area of the triangle is given by:
Area = (1/2)heightxbase length
Or
Area = (1/2)ADxBC
Area = (1/2)3x2
Area = (6/2)
Area = 3 square units
Thus, the area of the triangle on a coordinate plane is 3 square units option (B) 3 square units is correct.
Learn more about the triangle here:
brainly.com/question/25813512
#SPJ5
.
In the hands of someone with harmful intentions, how can analogies prove to be dangerous tools?
A)Analogies can create long-lasting confusion that prevents people from making decisions.
B)Analogies make significant connections seem far less powerful than they actually are.
C)Analogies meant to persuade or influence people are often disguised as explanations.
D)Analogies, even weak and misleading ones, can be powerful tools of persuasion.
Answer:
I believe, its D.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
2(x - 9) = 10 can somebody solve this please using a method
Answer:
x=14
Step-by-step explanation:
Answer:
x = 14
Step-by-step explanation:
2(x - 9) = 10
2x - 18 = 10
add 18 o each side of the equation:
2x = 28
divide both sides by 2:
x = 14
Han's house is 450 meters from school. Lin’s house is 135 meters closer to school. How far is Lin’s house from school?
prove that underroot 3-underroot 5 is irrational.
Please quickly I need this answer
Answer:
See Explanation
Step-by-step explanation:
Let us assume that [tex] \sqrt 3 - \sqrt 5[/tex] is a rational number.
So, it can be expressed in the form of [tex] \frac{p}{q} [/tex] where p and q are integers.
[tex]\therefore \sqrt 3 - \sqrt 5=\frac{p}{q}[/tex]
[tex]\therefore \sqrt 3 =\frac{p}{q}+ \sqrt 5[/tex]
[tex]\therefore \sqrt 3 =\frac{p+q\sqrt 5}{q}[/tex]
Squaring both sides:
[tex] (\sqrt 3) ^2 =\bigg(\frac{p+q\sqrt 5}{q}\bigg ) ^2 [/tex]
[tex]\therefore 3 =\frac{p^2 +5q^2 +2\sqrt 5 pq}{q^2 } [/tex]
[tex]\therefore 3q^2 ={p^2 +5q^2 +2\sqrt 5 pq}[/tex]
[tex]\therefore 0 = p^2 +5q^2 -3q^2 +2\sqrt 5 pq [/tex]
[tex]\therefore - 2\sqrt 5 pq=p^2 +2q^2 [/tex]
[tex]\therefore \sqrt 5 = \bigg (\frac{p^2 +2q^2}{-2pq} \bigg) [/tex]
[tex]\therefore \sqrt 5 = - \bigg(\frac{p^2 +2q^2}{2pq} \bigg) [/tex]
Since, p and q are integers so [tex] - \bigg(\frac{p^2 +2q^2}{2pq} \bigg) [/tex] is rational.
[tex]\therefore \sqrt 5 [/tex] is also rational.
But it contradicts the fact that [tex]\sqrt 5 [/tex] is irrational.
Hence, our assumption that [tex] \sqrt 3 - \sqrt 5[/tex] is rational is wrong.
[tex] \therefore \sqrt 3 - \sqrt 5[/tex] is irrational.
what is the difference between 479,310 and 214,991?
Answer:
264,319
Step-by-step explanation:
A difference is a subtraction problem.
Subtract 214,991 from 479,310.
479,310 - 214,991 = 264,319
Express as a trinomial.
(3x+8)(x + 6)
Answer:
multiply 3x by x then multiply 8 by 6 and get 48. since 8 and 6 are products of 48 they give a sum of 14 therefore your trinomial is
3x²+14x+48
-1/2x - 3 =4
which is the value of x?
Answer:
x = -14
(っ◔◡◔)っ ♥ Hope It Helps ♥
Answer:
-14
Step-by-step explanation:
-1/2x - 3 = 4
-1/2x = 4 + 3
x = 7 * -2
x = -14