Answer:
-15
Step-by-step explanation:
Answer:
nth term = -5n + 30
Step-by-step explanation:
Given sequence:-
25 20 15 10 5
To find the nth term, we have to find the algebraic expression, Xn.
Xn = dn + b
Here, 'd' means the common difference and 'b' means 'first term -- common difference'
the common difference here is -5
So, b = 25 - (-5)
b = 25 + 5
b = 30
Xn = -5n + 30
Therefore, nth term equals -5n + 30
in 2decimal places 39.98015
Answer:
39.98
Explanation:
39.98015
0 < 5, so 2nd decimal stays at 8
Answer:39.98
Step-by-step explanation:
Hey! I’m not exactly sure what you’re asking, but if the question is how to write that number in only two decimal places, it would be 39.98. We would round it up or down in the hundredths place because that is the second decimal place. Since the number behind the 8 is 0, we can’t round up or down so we would just leave it how it is and cut off the rest.
Hope this helped! :D
Sorry it I didn’t answer what you were asking! You can comment and I will answer any further questions!
The area of a circle is 28.74cm2.
Find the length of the radius rounded to 2 DP.
Answer:
3.025 = 3.03
Step-by-step explanation:
A = (3.14)(r)(r)
28.74/3.14 = 9.152866
3.025 = r
Help please. It’s due tomorrow and I have in person class and I actually don’t understand. (It’s ok if not)
Answer:
I would’ve worked it out but it’s been years
Step-by-step explanation:
use the inverse operation to solve the following equation w + 125.2 = 255
Answer:
w=129.8
Step-by-step explanation:
w + 125.2 = 255
-125.2
w=225-125.2
w=129.8
Answer:
Hope this helps please mark me as branlist.
Step-by-step explanation:
Subtract 125.2 from both sides:
w=125.2=255
w=125.2-125.2=255-125.2
w=255-125.2
w=129.8
Attendance at state park throughout the year is found to be periodic and can be modeled by a sine function. The attendance ranges from a low approximately 1,00,000 visitors in september to a high of approximately 2,00,000 visitors in march. If t is the month number, where t=1 is january, and N(t)is the attendance, in millions, of visitors, which of the functions can be used to model this behavior A: N(t)=0.5sin(π/6 t)+1.5 B: N(t)=1sin(π/6 t)-1 C: N(t)=0.5sin(2πt)+1.5 D: N(t)=1.5sin(π/6 t)+0.5
Answer:
A. N(t) = 0.5·sin((π/6)·t) + 1.5
Step-by-step explanation:
The given parameters are;
The model of the periodic function = Sine function
The low of the attendance = 1,000,000
The month of the low in attendance = September
The high in attendance = 2,000,000
The month number = t,
The month of January is represented by, t = 1
N(t) = The attendance in millions of visitors
The generic sine function which is given as y = a·sin(b·x + c) + d, ranges from -1 to 1
Period = 12 = 2·π/b
∴ b = 2·π/12 = π/6
c = 0
a = The amplitude = (The maximum - The minimum)/2 = (2,000,000 - 1,000,000)/2 = 500,000
Therefore, a = 0.5×1,000,000 = 0.5·N(t)
Therefore, given that the minimum, [tex]N(t)_{min}[/tex] = 1, we have;
For sin(b·x + c) = -1, a·sin(b·x + c) = -0.5, for the minimum of 1,000,000 = 1 × 1,000,000, we have;
a·sin(b·x + c) + d = 1
∴ -0.5 + d = 1
d = 1.5
Therefore, we have;
N(t) = 0.5·sin((π/6)·t) + 1.5
Answer:
N(t) = 0.5sin((π/6)t) + 1.5
Step-by-step explanation:
I need help with this!
Answer:
4.25
Step-by-step explanation:
Since this is a parallelogram, the parallel sides have the same value.
And since the perimeter of a parallelogram is all of the sides combined, this means
WR + RJ + JS + WS, or
5x + 5x + 3x + 2 + 3x +2 = 16x + 4
The perimeter is 16, so
16x + 4 = 16
16x = 12
x = 0.75
Substitute into 3x + 2, or WS.
2.25 + 2 = WS
WS = 4.25
Step-by-step explanation:
perimeter of parallelogram =16
2(WR+RJ)=162(5x+3x+2)=1610x+6x+4=1616x=16-4x=12/16x=3/4so value of WS=3x+2
3×3/4+24.25cmhope it helps
stay safe healthy and happy.Graph the line given by the equation: 2x+4y=-3
what's the value of "x"? Show all your work.
Answer:
x=9
Step-by-step explanation:
a²+b²=c²
x²+6²=(√117)²
x²+36=117
x²=81
x=9
Answer:
3[tex]\sqrt{17}[/tex] or 12.37 cm
Step-by-step explanation:
use the Pythagorean Theorem:
6² + [tex]\sqrt{117}[/tex]² = x²
36 + 117 = x²
x² = 153
x = [tex]\sqrt{153}[/tex] which is [tex]\sqrt{9}[/tex][tex]\sqrt{17}[/tex] or 3[tex]\sqrt{17}[/tex]
in decimal form, 'x' is approx 12.37
If f(x)= x/1+x, what is the value of f(x+h)
Answer:
f(x+h)=
Step-by-step explanation:
f(x+h)=x+h+x+h
2h+2x2(h+x)stay safe healthy and happy.Use the distributive property to remove the parentheses. 5(v+6)
Answer:
5 x 6v
Step-by-step explanation:
A population of 12,000 fish has a growth rate of 4% each year. Write a model for the situation. How many years will it take of the population to reach 20,000
Answer:
13years
Step-by-step explanation:
Using the formula for calculating the compound interest expressed as;
A =P(1+r)^n
P = 12000
rate r = 4% = 0.04
Amount after 4 years A = 20,000
Substitute into the formula and solve for p
20,000 = 12,000(1+0.04)^t
20,000/12000 = (1.04)^t
1.67 = (1.04)^t
Take the ln of both side
ln1.67 = ln(1.04)^t
ln1.67 = t ln 1.04
t = ln1.67/ln1.04
t = 0.5108/0.0392
t = 13.03
hence it will take approximately 13years to reach 20,000
PLLLLLLLS HELP WILL GIVE BRAILEST 20 POINTS
colby is standing next to a water tower, he is 6ft tall and casts a 3 foot shadow.
if the water tow cast a 60 foot tall shadow, how tall is the tower?
30
120
180
240
Answer:
the water tower casts 60 ft shadow its 120 ft tall
Step-by-step explanation:
Answer:
180 I hope this is the correct answer
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jdsfjsfjsdj jsdf jsgd jj ej jjs sejr
What is the sequence of transformations?
9 Pts
A
Answer:
Its a
Step-by-step explanation:
For what values of x and y are the triangles congruent
Answer: b maybe
Step-by-step explanation:
Answer:
D.) x=5, y=2
Step-by-step explanation:
Triangle ABC
Hypotenuse, 2(5) + 3 = 13
Base,4(2)+2= 10
Triangle DEF
Hypotenuse, 3(5) - 2 = 13
Base, 9(2) - 8 = 10
Solve for x. Round your answer to the nearest tenth.
Answer:
x = 11.1
Step-by-step explanation:
Cosine theta = adjacent/hypotenuse
cos 42 = x/15
x = 15 cos 42
x = 11.1
Adicionando os Polinômios 4x2-10x-5 e 6x+12,teremos: a)x^2-16x^2+7 b)x^3-4x+17 c)4x^2-4x+7 d)4x^3-4x^2+7
Answer:
c)4x^2-4x+7
Step-by-step explanation:
Sumando los polinomios 4x2-10x-5 y 6x + 12, tendremos:
4x2-10x-5
6x + 12
4x ^ 2- 4x + 7
En esta pregunta, los términos semejantes se añaden con los términos semejantes. Cuando se suma -10x a + 6x, se obtiene -4x porque 10x tiene signo negativo y 6x tiene signo positivo. Los diferentes signos se restan y el signo del término más grande se coloca al lado del término resultante.
De manera similar, se resta 5 de 12 y obtenemos 7.
Los términos que están solos siguen siendo los mismos, sus potencias o coeficientes no cambian después de la suma o la resta.
entonces la mejor opción es la opción C
English
Adding the Polynomials 4x2-10x-5 and 6x + 12, we will have:
4x2-10x-5
6x+ 12
4x^2- 4x+7
In this question like terms are added with the like terms. When -10x is added to +6x it gives -4x because 10x has negative sign and 6x has positive sign. Different signs are subtracted and the sign of the bigger term is placed beside the resulting term.
Similarly 5 is subtracted from 12 and we get 7.
The terms which are alone remain the same their powers or co efficients do not change after addition or subtraction.
so the best choice is option C
can someone pls help
Answer:
Step-by-step explanation:
Answer:
b.
Step-by-step explanation:
what term is used to best describe the spread of the data set?
A. Median
B. Mode
C. Mean
D. Range
I'm not that sure but I think the answer is Median (A)
It takes Chris 30 minutes to walk to work. If he drives, it takes him 1/3 of that time.
What is the latest time that Chris can leave to drive to work and arrive by 8:00?
Answer:
7:50
Step-by-step explanation:
cause.....
30/3=10
8:00- 10 min = 7:50
Nate has 1.44 pounds of meat. He uses 0.24 pound of meat to make one hamburger. How many hamburgers can Nate make with the meat he has?
Answer: 6
Step-by-step explanation: 1.44 divided by 0.24 equals 6
An explanation is required or else not brainliest.
Answer:
16 meters
Step-by-step explanation:
[tex] In\: \odot F, \: \overline {RS} [/tex] is tangent to the circle at point R and FR is radius.
[tex] \therefore RF\perp RS[/tex] (Tangent radius theorem)
[tex] \therefore m\angle FRS = 90\degree [/tex]
So, [tex] \triangle FRS[/tex] is right angled triangle and FS is its hypotenuse.
Let FR = FT = r
FS = FT + ST = r + 9
Now, by Pythagoras theorem:
[tex]FR^2 + RS^2 = FS^2 \\ \therefore r^2 + (15)^2 = (r + 9)^2 \\ \therefore \cancel{ r^2} +225 = \cancel{ r^2} + 18r + 81\\ \therefore \: 225 = 18r + 81 \\ \therefore \: 225 - 81= 18r \\ \therefore \: 144= 18r \\ \therefore \: r = \frac{144}{18} \\ \therefore \: r =8 \: m\\ \implies \: d = 2r = 2(8) = 16 \: m[/tex]
Thus, the diameter of the fountain is 16 meters.
please help me oout with this one and dont just put a random answer so u can get points its not like u can buy a CAR with it lol
Answer:
V - 1099.55742876
SA - 769.690200129
Step-by-step explanation:
The volume of a cone is denoted by the formula:
V = 1/3 * h * pi * r^2
We can substitute in the values we are given:
V = 1/3 * 10.5 * pi * 10^2
V = 3.5 * 100 * pi
V = 350pi
This is about: 1099.55742876
The formula for the surface area of a cone is:
SA = pi * r^2 + pi * r * s
We can substitute what we have:
SA = pi * 10^2 + pi * 10 * 14.5
SA = 100 pi + 145 pi
SA = 245 pi
This is about: 769.690200129
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
A basket ball being held
Step-by-step explanation:
Hope this helps you out
Two phone companies one is 11/+.16/ min And another is 20+.11/min How many minutes will make both equal amounts
Answer:
Company one charges $11 + $0.16 per min.
Then if you talk for x minutes, the cost will be:
C₁(x) = $11 + ($0.16 per min)*x
For company two, the prize is $20 + $0.11 per min, and if yo talk for x minutes, the cost will be:
C₂(x) = $20 + ($0.11 per min)*x
Now we want to find the value of x, the number of minutes, such that the cost is the same with both companies.
C₁(x) = C₂(x)
$11 + ($0.16 per min)*x = $20 + ($0.11 per min)*x
($0.16 per min)*x - ($0.11 per min)*x = $20 - $11
($0.05 per min)*x = $9
x = $9/($0.05 per min) = 180 mins
If you speak for 180 minutes, the cost is the same in both companies.
Pls Help me out homies
Answer:
Just taking my points back
What value of x makes the equation x+ 38 = 72 true?
Answer:
x = 34
Step-by-step explanation:
Given
x + 38 = 72 ( subtract 38 from both sides )
x = 34
Answer:
X=34
Step-by-step explanation:
Well, what you can do is bring the 38 to the other side and make it negative so you can subtract 38 with the 72. The 72-38 is= 34 and so x= 34
x+38=72
x=72-38
x=34
Hope this helps! ^^
Which equation represents the line that is perpendicular to y = 5x + 4 and passes through the point (-5, 2)?
Answer:
y = (-1/5)x + 1
Step-by-step explanation:
The slope of this perpendicular line is the negative reciprocal of the slope of the given line y = 5x + 4: -1/5.
Applying the slope-intercept form of the equation of a line, we get:
2 = (-1/5)(-5) + b, or:
2 = 1 + b
Therefore, b = 1 and the desired equation is:
y = (-1/5)x + 1
Please, if you are given answer choices, share them.
There are 3000 student in the school 30% of the student are girls find
A) The total number of girl
B) The total number of student
Step-by-step explanation:
3000 [tex] 3000 \div 30 = 1000[/tex][tex]3000 \times 30 = 90000[/tex]Josh has drawn a map of three destinations he wants to visit. What is the distance between destinations A and B
Answer:
73.5
Step-by-step explanation:
Please find the complete question in the attached image
Remember the notation SOHCAHTOA
We would be using cos because we have been given the hypotenuse and we are to determine the adjacent value
cos 37 = adjacent / hypotenuse
cos 37 = adjacent / 92
0.7986 = adjacent / 92
adjacent = 0.7986 x 92 = 73.5