Answer:
The value of n is complex
Step-by-step explanation:
The sequence is an arithmetic sequence
Given
First term a = -10
common diff d = -7-(-10) = -4-(-7) = 3
Sn = -104
get the number of terms n using the formula
Sn = n/2[2a+(n-1)d]
-104 = n/2[2(-10)+(n-1)(3)]
-104 = n/2[-20+3n-3]
-208 = n{3n-23}
-208 = 3n²-23n
3n²-23n+208 = 0
Factorize
n = 23±√23²+4(3)(208)/2(3)
n = 23±√529-2496/6
Since the value of n is a complex number, hence the value of n does not exist
Maggi buys 3/4 pound of blueberries and uses 3/5 of them to make a smoothie. How many pounds of blueberries did Maggi use to make her smoothie?
Answer:
1/4
Step-by-step explanation:
Answer:6/20
Step-by-step explanation:
Find the common ratio (r) of the sequence 3, -6, 12, -24, ...
Answer:
-2
Step-by-step explanation:
3*(-2)=-6
-6*(-2)=12
12*(-2)=-24
what is r + 3/4 = 7/8
Answer:
r + ¾ = ⁷/₈
r = ⁷/₈ - ¾
⁷/₈ - ⁶₈ = ¹/₈
r = ¹/₈
Step-by-step explanation:
but my original answer was 4/4
Help pleaseeeeit won’t let me send it cuz it has to be longer soo...
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Indices.
After simplifying we get as,
B.) 3v^16/m^4 p^6
option B.) is totally correct.
Answer:
b0uv9uvj9c9hc9
Step-by-step explanation:
beive88eh
A rectangular lot is 125 yards long and 80 yards wide.
Give the length and width of another rectangular lot that has the same perimeter but a larger area.
Answer:
Step-by-step explanation:
perimeter=2(125+80)=2(205)=410 yards
let the length of new rectangle be x and y.
Perimeter=2(x+y)
2(x+y)=410
x+y=410/2=205 yards
y=205-x
area A=xy=x(205-x)=205x-x²
[tex]\frac{dA}{dx} =205-2x\\\frac{dA}{dx}=0,gives~205-2x=0\\x=\frac{205}{2}\\\frac{d^2A}{dx^2}=-2<0 ~at~x=\frac{205}{2}\\[/tex]
A is maximum at x=205/2
y=205-205/2=(410-205)/2=205/2
so x=205/2=102.5 yards
y=205/2=102.5 yards
Which expressions are equivalent to z + (z + 6)z+(z+6)z, plus, left parenthesis, z, plus, 6, right parenthesis ?
Answer:
5 lolsjjhgjh h h gh h h hh f ggugy
What is the value of x in the equation x + 10 = 13?
O-3
03
0 13
O 23
Answer:
3
Step-by-step explanation:
x+10=13
x+10-10=13-10
Simplfiy
x=3
Hi! Your answer is x = 3.
Please see an explanation for a clear and better understanding to your problem.
Any questions about my answer and explanation can be asked through comments! :)
Step-by-step explanation:
Our goal is to find the value of x. That means what we have to do is to isolate x-term first.
[tex]\huge{x+10=13}[/tex]
To isolate a variable means that to make a variable as a subject or also known as leaving a variable alone. To isolate the x-term for this problem, simply subtract both sides by 10 so we can get rid of 10 from the left side.
[tex]\huge{x+10-10=13-10}\\\huge{x+0=3}\\\huge{x=3}[/tex]
If you are not sure that the answer is correct or not. We can substitute the value of x in the equation.
[tex]\huge{x+10=13}[/tex]
Substitute x = 3 in the equation.
[tex]\huge{3+10=13}\\\huge{13=13}[/tex]
The equation is true for x = 3. Hence, we can conclude that x = 3 is the solution to the equation.
Choose from among the following sequence of numbers the one that is arithmetic with a common difference of +3
Answer:
3, 6, 9, 12, 15
Step-by-step explanation:
just took quiz
(Score for Question 1:__ of 7 points) 1. Kenny is putting a brick border around his irregular shaped garden. Before installing the border, Kenny must cut the bricks to fit the angles of the garden. Use the given measures to answer the question. mA = x mZB =(5x -5° mZC = (2x + 20° mZD=(3x -15)° mZE =(4x)º What are the angle measures of each vertex of the garden? Show your work. B A
Answer:
Step-by-step explanation:
A certain number of nickels, dimes and quarters have a value of $5.60 there are an equal number of each type of coin. How much coins are there? (PLEASE HELP WORTH ALOT OF POINTS)
Answer:
Step-by-step explanation:
A certain number of nickels, dimes and quarters have a value of $5.60 there are an equal number of each type of coin. How much coins are there?
(0.05+0.10+0.25)c =5.60
0.40c=5.60
40c=560
c = 14
There are 14 nickels ,dimes and quarters.
simplify the complex rational expression
Answer:
[tex]2(x+2)/x+1[/tex]
Step-by-step explanation:
Answer:
2( x +2 )
x+1
Step-by-step explanation:
to add or subtract expressions expand them to make their denominators the same, multiply 1 time [tex]\frac{x-2}{x-2}[/tex]
since [tex]\frac{x}{x-2}[/tex] and [tex]\frac{x-2}{x-2}[/tex] have the same denominators add them by adding their numerators
combine x + x -2
factor [tex]x^{2}[/tex] - 4
to add or subtract expressions expand them and multiply by 1
have same denominator add them by adding their numerators
do the multiplications in 3 + ( x-2 )(x+2)
combine like terms in 3 + [tex]x^{2}[/tex] + 2x - 2x -4
divide [tex]\frac{2x-2}{x-2}[/tex] by [tex]\frac{-1 + x^{2} }{(x-2)(x+2) }[/tex] multiplying [tex]\frac{2x-2}{x-2}[/tex]
cancel out x-2 in both numerator and denominator
factor the expression that are not already factored
cancel out x-1 in both numerator and denominator
expand the expression
Plz help me plzzzzz !!!!!!
Answer:
C , D.
Step-by-step explanation:
Answer:
I believe it is D (as well as C)
Step-by-step explanation:
The equation being showed is K being divided by 2, there in other words you can simply re-write it as K÷2
Use Pythagorean theorem to find the missing length. (round to tenth if necessary) IS
11.7
8
7
64
11.7
Formula: a^2 + b^2 = c^2
so substitute the numbers like this:
10^2 + 6^2 = c^2
both 10^2 and 6^2 are perfect squares:
10 × 10= 100 and 6 × 6= 36
100 + 36= c^2
add:
100 + 36 =
136 = c^2
now in order to get rid of the squared, you put it into a radical:
√136 = √c^2
note: whatever you do on one side, you do to the other
it's easier to use the calculator for this so put √136 and you're gonna get 11.66
since it's asking you to round it to the nearest tenth:
11.66 = 11.7
sorry if the explanation is kinda long ✋ i tried explaining it better in the end but i failed
Dan spends 1/4 of his wages on rent and 2/3 on food. If he makes £624 per week, how much
money does he have left?
Answer:
620.3 is my answer
Sana makatulong.
Mark me as Brainilest Answer. Thank you
Area of a rectangle is (6x25x + 2) sq. units.
the breadth of the rectangle is 6x - 7 units, what is its length?
write the expression which represents the perimeter of the rectangle
lf x=10m, find the actual length, breadth and area of the rectangle.
please can i have help
Answer:
1/4 i think
Step-by-step explanation:
Answer:
y= -- 1/4 x + 7/4
y= -- 1/4 x + 1.75
Step-by-step explanation:
i runed it through desmos and i was just like the picture dont know how to explain it
7. Present age of Rahul is 't years
a) What was Rahul's age 8 years back?
b) Rahul's mother is 6 years more than 5 times Rahul's age. What is his mother's age ?
Step-by-step explanation:
a) rahul's age = t
rahul's age 8 yrs. back = t - 8
PLEASE ANSWER ASAP !!!
Answer:
the midpoint would be:(0,5)
Step-by-step explanation:
what is the simplified form of the expression 0.2 (3x-3y)?
Answer:
0.6x - 0.6y.
Step-by-step explanation:
0.2 (3x - 3y)
= 0.2*3x - 0.2*3y
= 0.6x - 0.6y.
Find the value of x. Write your answer as a simplified radical if necessary.
Answer:
x=5
Step-by-step explanation:
The right angle opposite is the hypotenuse
The 30° is the opposite
SohCahToa
Soh = Sin because you got Opposite and Hypotenuse (because you're trying to find the side, you'd do the opposite of dividing, which is times)
10×sin(30)=5
In this polygon, which angle is an exterior angle?
The angle in the polygon that is an exterior angle is: angle A.
What is an Exterior Angle of a Polygon?An exterior angle of a polygon is an angle that is formed outside the polygon at the point where a side of the polygon extends. Sum of all exterior angles of any polygon equals 360 degrees.
Angle A in the polygon given is formed at the point where a side of the polygon extends out. Therefore, the angle that is an exterior angle is: angle A.
Learn more about exterior angle on:
https://brainly.com/question/2546141
#SPJ1
Question Help
Find the value of x
Answer:
x = √97
Step-by-step explanation:
Answer:√97
Step-by-step explanation:
According to pythagoras theorem,
X^2= 4^2 + 9^2
→x =√(16 + 81)
→x=√97
Describe the answer dont draw it out
Answer:
Heres what you do:
Plot a filled in, completlely black circle on the 2.
Make sure the line is going right, (-->) from the point
I need help!!! PLEASE HELP ME
Answer: y=8
Step-by-step explanation:
amit deposited Rs.5000 in a bank which pays 8% per annum interest deposit . how much interest will he get at the end of 4 years also find the amount
Step-by-step explanation:
Hope it helped
pls mark BRAINLIEST
Which statements (more than one) describe the equation 3 x 9 = 27?
3 is 27 times as many as 9.
27 is 9 times as many as 3.
9 times as many as 3 is 27.
9 times as many as 27 is 3.
3 is 9 times as many as 27
Answer:
9 times as many as 3 is 27.
Step-by-step explanation:
help ill put the pics below
Answer:
A
Step-by-step explanation:
please help i will mark branliest!
Answer:
The answer is A. 33 square inches
Step-by-step explanation:
Since the area of the Bisawi is a half total base multiplied in the height
[tex]area = \frac{1}{2} (8 + 3) \times 6 \\ = 33[/tex]
help please will mark you brainliests
Answer:
180 - 2x
Step-by-step explanation:
Angle bad = 180 - 2x
A fence is being built around a rectangular garden that is 8 1/2 feet by 6 1/3 feet. Fencing comes in panels. Each panel is 2/3 of a foot wide. how many panels are needed?
Answer:
The quadratic equations and their solutions are;
9 ± √33 /4 = 2x² - 9x + 6.
4 ± √6 /2 = 2x² - 8x + 5.
9 ± √89 /4 = 2x² - 9x - 1.
4 ± √22 /2 = 2x² - 8x - 3.
Explanation:
Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.
We have to solve all of the five equations to be able to match the equations with their solutions.
2x² - 8x + 5, here a = 2, b = -8, c = 5. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4. 24 can also be written as 4 × 6 and √4 = 2. So x = 8 ± 2√6 / 2×2= 4±√6/2.
2x² - 10x + 3, here a = 2, b = -10, c = 3. x =-b ± √b² - 4ac / 2a =-(-10) ± √(-10)² - 4(2)(3) / 2(4) = 10 ± √100 + 24/4. 124 can also be written as 4 × 31 and √4 = 2. So x = 10 ± 2√31 / 2×2 = 5 ± √31 /2.
2x² - 8x - 3, here a = 2, b = -8, c = -3. x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4. 88 can also be written as 4 × 22 and √4 = 2. So x = 8 ± 2√22 / 2×2 = 4± √22/2.
2x² - 9x - 1, here a = 2, b = -9, c = -1. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(-1) / 2(2) = 9 ± √81 + 8/4. x = 9 ± √89 / 4.
2x² - 9x + 6, here a = 2, b = -9, c = 6. x = -b ± √b² - 4ac / 2a = -(-9) ± √(-9)² - 4(2)(6) / 2(2) = 9 ± √81 - 48/4. x = 9 ± √33 / 4 .