Answers
========================================================
In 1985, there were 20 students
In 2005, there were 45 students
This is a change of 45-20 = 25 students.
This amount of change is divided by the original amount 20 to get 25/20 = 1.25 and converts to 125% when you move the decimal point 2 spots to the right.
-------------
If you want, you can use the formula below
x = old value = 20
y = new value = 45
z = percent change
z = [ (y-x)/x ] * 100%
z = [ (45-20)/20 ] * 100%
z = (25/20) * 100%
z = 1.25*100%
z = 125%
The z value being positive means we have a percent increase.
It's possible to have over 100% increase since 100% of 20 is 20. Having a 100% increase means we increased by 20. Since we increased by more than 20, this means the increase must be over 100%.
Related Questions
box 1 =
box 2 =
box 3 =
Answers
Answer: 3 7 8 ?
Step-by-step explanation:
8
7 will be the answer
help me plis What is the exact measurement of the line segment? A. B. C. D.
Answers
Answer: where is the line segment
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Hello, happy Friday, I am just here with some geometry questions.
Please only answer this if you know the answer. If you have a comment, please add it to the comment box. Only answer the question if you can explain your answer and why you think it is accurate. Thanks, good luck!
Like normal, explain your answer and work.
Answers
Answer:
A. AB/BC = FE/EDStep-by-step explanation:
Parallel lines divide the transversals proportionally.
Correct choice is A only, the other options concern the parallel lines themselves:
A. AB/BC = FE/ED
The ratio of Jessica's stickers to Rod's stickers is 7:4. Jessica has 21 stickers How many stickers does
Rod have?
stickers
Answers
Out by dividing 21 by 7
can you hlep me for 10000000000000000000000000000000000000x1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111(1222222222222222222222222222222222222222222222222222222222222222)=
Answers
there is no way thats a real question the answer is "a number"
thanks for the points
Answer:
1.358025e+193
Step-by-step explanation:
What is the length of the segment joining the points at (−4, 1) and (3, 7)? Round to the nearest tenth if necessary. Enter your answer in the box. units: __
Answers
Answer:
Image result for length of the segment
The length of this line segment is the distance between its endpoints A and B.
Step-by-step explanation:
Answer: 9.2
√7-1^2 + 3-(-4)^2
√6^2 + 7^2
√36 + 49
√85 or 9.2
Write the first five terms of each sequence. A geometric sequence with a common ratio of 3 and a first term of 1.
Answers
PLEASE ANSWER FAST!!!!!!!!!!
Answers
Answer:
d there is no such as 5+y cannot be less than 5-y
sana makatulong :-) :-)
Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.) xe9x dx; u
Answers
Answer:
The answer is "[tex]\bold{\frac{ \ e^{9x}}{9} (x-1)+C}\\[/tex]"
Step-by-step explanation:
Taking the integral [tex]\int x^{2x} \ dx[/tex]
Evaluating the integral by using integration:
[tex]u=x\\\\dv=e^{9x} \ dx[/tex]
Let
[tex]u=x\\\\ dv=e^{9x} dx[/tex]
Then,
[tex]\to \frac{du}{dx}= 1 \ and\ v =\int e^{9X} \ dx \\\\\to du = 1 \ dx \\\\\to v = \frac{e^{9x}}{9}\\\\\text{integrate the above value}:\\\\\int\ u \ dv = uv - \int v du \\\\Now, \\\\\to \int x e^{9X} \ dx = x \frac{e^{9x}}{9} - \int \frac{e^{9x}}{9} dx[/tex]
[tex]= \frac{ x \ e^{9x}}{9} - \frac{e^{9x}}{9}\\\\= \frac{ \ e^{9x}}{9} (x-1)+C\\[/tex]
Answer:
[tex]\displaystyle \int {xe^{9x}} \, dx = e^{9x} \bigg( \frac{x}{9} - \frac{1}{81} \bigg) + C[/tex]
General Formulas and Concepts:
Calculus
Differentiation
DerivativesDerivative NotationDerivative Property [Multiplied Constant]: [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Integration
Integrals[Indefinite Integrals] Integration Constant CIntegration Property [Multiplied Constant]: [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]
U-Substitution
Integration by Parts: [tex]\displaystyle \int {u} \, dv = uv - \int {v} \, du[/tex]
[IBP] LIPET: Logs, inverses, Polynomials, Exponentials, TrigStep-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle \int {xe^{9x}} \, dx[/tex]
Step 2: Integrate Pt. 1
Identify variables for integration by parts using LIPET.
Set u: [tex]\displaystyle u = x[/tex][u] Differentiate: [tex]\displaystyle du = dx[/tex]Set dv: [tex]\displaystyle dv = e^{9x} \ dx[/tex][dv] Integrate [Exponential Integration]: [tex]\displaystyle v = \frac{e^{9x}}{9}[/tex]Step 3: Integrate Pt. 2
[Integral] Integration by parts: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \int {\frac{e^{9x}}{9}} \, du[/tex][Integral] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \frac{1}{9} \int {e^{9x}} \, du[/tex]Step 4: Integrate Pt. 3
Identify variables for u-substitution.
Set u: [tex]\displaystyle u = 9x[/tex][u] Differentiate [Derivative Properties, Basic Power Rule]: [tex]\displaystyle du = 9 \ dx[/tex]Step 5: Integrate Pt. 4
[Integral] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \frac{1}{81} \int {9e^{9x}} \, du[/tex][Integral] U-Substitution: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \frac{1}{81} \int {e^u} \, du[/tex][Integral] Exponential Integration: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \frac{e^u}{81} + C[/tex][u] Back-Substitute: [tex]\displaystyle \int {xe^{9x}} \, dx = \frac{xe^{9x}}{9} - \frac{e^{9x}}{81} + C[/tex]Factor: [tex]\displaystyle \int {xe^{9x}} \, dx = e^{9x} \bigg( \frac{x}{9} - \frac{1}{81} \bigg) + C[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Integration
What will be the final velocity just before hitting the ground if an object is dropped from a height of 75 m?
Answers
Bdhdhdjdjdjs
estimate the product of 26.4×2.7
Answers
Answer:..
Step-by-step explanation:
Answer:
Step-by-step explanation:
okay, 26.4*2.7 = 26*3 (when estimated)
26*3=78(or just somewhere around 70)
Question 6
A bug crawls at a rate of 2 feet per minute. How long will it take the bug to crawl 25 ft?
PLEASE HELPPPP!!!!!!!!!!!!
Answers
help me please I need this done I've been stuck on it for a while!
Answers
Answer:
Step-by-step explanation:
5 * 2^2*5 + 2^4
5^2*2^2+2^4
answer is B
solve the following polynomial equation 8x³-8=0
Answers
Answer
brainliest?
Step-by-step explanation:
There are three solutions:
x
0
=
2
x
1
=
3
+
2
i
x
2
=
3
−
2
i
Answer:
x=1,[tex]-\frac{1-i\sqrt{3} }{2}, -\frac{1+i\sqrt{3} }{2}[/tex]
Step-by-step explanation:
Hope this helps.
1000000 in standard form
Answers
Answer:
1000000 = 10⁶
Step-by-step explanation:
There are 6 zeroes in 1000000, so to convert it to its standard form we must take 6 as the exponent = 10⁶
Form an equation and solve it to answer the question. An editor needs to read a 700-page manuscript. Her goal is to proofread 28 pages each day. If she has already read 112 pages, how many more days will it take her to complete the proofreading?
Answers
Answer:
21 more days
Step-by-step explanation:
Let x be the number of days
700-112 = 28x
588 = 28x
x = 21
It will take her 21 more days
1 + 14 =
1 - 14 =
1 + 12 =
1 - 12 =
1 + 13 =
1 - 13 +
Answers
Answer:
1.15
2.-13
3.13.
4.-11
5.14
6.-12
Step-by-step explanation:
Answer:
c0ldhearted.jai
Step-by-step explanation:
my insta
Write an expression for the sequence of operations described below. Add 10 to 2, multiply r by the result, then raise what you have to the 8th power
Answers
Answer:
10+2×r^8 I hope this helps
please help hurry fast thanks
Answers
Answer: No
Step-by-step explanation:
If he spent 30 minutes making 1 boat, then it would take him two hours to make it
Answer:
30 x 4 = 120 minutes = 2 hours
Step-by-step explanation:
It won't take Brian 3 hours to make 4 boats. Multiply 30 by the number of boats to get the number of minutes then convert to hours.
Jimmy estimates that a pitcher holds 4.5 liters of liquid. It actually holds 4.8 liters. What is the percent error between his estimate and the actual volume of the pitcher?
A. 1/3%
B. 1 1/3%
C. 6 1/4%
D. 6 2/3%
Answers
Answer:
the answer is 6 1/4%. I hope it helps!
Two angles of a triangle have the same measure and the third one is 24 degrees greater than the
measure of each of the other two. Find the measure of the LARGEST angle in the triangle.
Answers
Answer:
76
Step-by-step explanation:
180-24=156
156÷3=52
52+24=76
Manny wants to cover the windows in his home with either wood blinds or curtains. He has 35 windows that he would like to cover, but only has $2,100 to spend. Wood blinds cost $100 per window. Curtains cost $60 per window. Which system of inequalities represents the number of wood blinds, x, and curtains, y, Manny can purchase?
{x+y≤3560x+100y≤2100
{x+y≤35100x+60y≤2100
{x+y≥35100x+60y≥2100
{x+y≤210060x+100y≥35
Answers
What is the area of the trapezoid? 4 ft. 4 ft. 2 ft. square feet
Answers
Hope that helped
A=a+b/2h
One-fourth of the sum of 6 and 2 times c exceeds 3.
Answers
0.25 (6+ 2c) > 3
1.5 + 0.5c > 3
0.5c > 1.5
c > 3
Or multiply both sides by 4 to get rid of the 1/4,
6 + 2c > 12
2c > 6
c >3
Identify the x-intercept and y-intercept of the line 2x-5y=10.
A. the x-intercept is (0, -2) and the y-intercept is (5,0)
B. the x-intercept is (0, 5) and the y-intercept is (-2,0)
C. the x-intercept is (2,0) and the y-intercept is (0, -5)
D. the x-intercept is (5,0) and the y-intercept is (0, -2)
Answers
Solve 15 < 4x on a number line
Answers
Answer:
that shall answer 15 < 4x on a number line
Step-by-step explanation:
view image for more clarity
solve (-2x -2) + (x -5)
Answers
Answer:
x-7
Step-by-step explanation:
Hope this helps and have a great day!!!!
Answer:
-x-7
Step-by-step explanation:
at the post office 45% of packages ship as priority mail. if 160 of the packages are shipped today then how many will not go as priority
Answers
Answer:
The answer is 72 because 45% of 160 is 72.
Step-by-step explanation:
A person is walking at a rate of 9 feet every 4 seconds.
(b) Given the rate in (a), how far would this
person travel in 14 seconds
Answers
Answer:
31.5 feet
Step-by-step explanation:
2.25 feet every second
3+(55-111)/25 equals what
Answers
Answer:
0.76
Step-by-step explanation:
3+(55-111)/25
=3+(-56)/25
=3+ (-2.24)
=0.76
Answer:
3+(55-111)/25= 0.76
Step-by-step explanation:
Using PEMDAS, you solve 55-111 which is -56
Then you divide -56 by 25 because it is the fourth step, you get -2.24
Add three to -2.24 to get 0.76
If you round UP to the nearest tenth, it will be 0.80
If you round DOWN to the nearest tenth, it will be 0.70