Answer:
the distance is: [tex]\sqrt{80}[/tex]
Step-by-step explanation:
We use he distance formula:
distance = [tex]\sqrt{(-9 + 1)^2+(3+1)^2}=\sqrt{64+16} =\sqrt{80}[/tex]
Answer:
Step-by-step explanation:
[tex]d^2=(x_2-x_1)^2+(y_2-y_1)^2\\ \\ d^2=(3- -1)^2+(-9- -1)^2\\ \\ d^2=4^2+(-8)^2\\ \\ d^2=16+64\\ \\ d^2=80\\ d=\sqrt{80}\\ \\ d=4\sqrt{5}\\ \\ d\approx 8.9[/tex]
evaluate the expression:
x²×x¹ for x=9
Answer:
It’s 729
Step-by-step explanation:
3+(55-111)/25 equals what
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
PLEASEEEEEE HELP DUE AT 2:40
If Maya orders a $1.89 drink, 3 cookies at $.99 each, and 2 slices of pizza at $2.50 each. How much did Maya pay for her order?
ASAP PLZ IM DOING A TEST
Answer:
$9.86
Step-by-step explanation:
Frist you read the problem and you see that she pays $1.89 for one drink
so you write down $1.89
then 3 cookies for $0.99 so you multiply $0.99 by 3 and you get $2.97
so you write down $2.97
next 2 slices of pizza for $2.50 so you multiply 2 by $2.50 and you get $5.00
so you write that down
lastly you and the answers you wrote down and you get $9.86
Maya payed $9.86 for her order.
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
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
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%
Answer:
the answer is 6 1/4%. I hope it helps!
Which option equals tan 40°? Select all that apply.
A) sin50°/cos 50°
B) cos50°/sin 50°
C) cos40°/sin 40°
D) sin40°/cos 40°
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.
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/EDWhich number is the value of f–1(–2)?
Answer:
f+2
Step-by-step explanation:
Wrong, the answer is 1 on Edge..
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
Answer:
31.5 feet
Step-by-step explanation:
2.25 feet every second
Jose makes a triangle using three sticks of lengths 20 inches, 21 inches, and 28 inches. Is the
triangle a right triangle? Explain.
Answer:
no because for right angle triangle the sum of the sq of the two smallest side is equal to the sq of biggest side
estimate the product of 26.4×2.7
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)
Bernie left home, riding his bike at a rate of 15 miles per hour. Charlie left 1 hour later, biking at a rate of 20 miles per hour. How long will it take Charlie to catch up to Bernie?
Can Someone Help, Pleasee. ?
Answer:
y = -2/3x + 6 (last option)
Step-by-step explanation:
A parallel line has the same slope as the original line. Since y = -2/3x+6 and y = -2/3x +1 have the same slope, the answer is the last option
Answer:
the last one.
Step-by-step explanation:
It has to have the same angular coefficient (-2/3 in this case)
What is 3/5 divided by 3/4
3/5 *4/3
1/5*4/1=4/5
=.8
hope it helps
What is the slope of y = -5 – 41?
Answer:
4
Step-by-step explanation:
We need to rewrite this in slope-intercept for which is
y=mx+b
So switch 4x and -5
y=4x-5
m is slope and b is y-intercept we need to find the slope so we look what is beside x which is 4 so the slope is 4
Hope this helps!
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: __
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
Pls answer I really need help with this pleasseeee
Answer:
12.3
Step-by-step explanation:
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.
Answer:
76
Step-by-step explanation:
180-24=156
156÷3=52
52+24=76
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answer:
m=2, b=2
y=2x+2
The slope is positive, and the equation is proportional.
Answer:
m = 2 b = -1
equation: y = 2x -1
Proportional and a positive slope
The ratio of Jessica's stickers to Rod's stickers is 7:4. Jessica has 21 stickers How many stickers does
Rod have?
stickers
18% of the the students at a school are in year 8 and 16% of the students are in year 9. If the school has 126 tera 8 students, determine the number of year 9 students.
Answer:
112
Step-by-step explanation:
The general form of all percentage questions is: the chunk= (some percentage) (of the whole), or c=p*w
We know that 18% of students are 8th grade and that is 126 students, so p = 0.18 and c=126 (126 students are 18% of the whole school)
126 = (0.18)w, divide both sides by 0.18
126/(0.18) = w = 700
9th graders are 16% of the school or 16% of 700 students
c = (0.16) 700 = 112 students
Helpppp i dont understand
Find the equation of the line with slope = -8 and passing through (-2,12). Write your equation in the
form y = mx + b.
Answer:
y=-8x-4
Step-by-step explanation:
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!!!!!!!!!!!!
Which expression is equivalent to x2−12x+36?
a (x+6)2
b (x+12)(x−3)
c (x+6)(x−6)
d (x−6)2 please help me figure this out
Answer:
(x-6)(x-6) or (x-6)^2
Step-by-step explanation:
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
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
Answer:
The answer is 72 because 45% of 160 is 72.
Step-by-step explanation:
Please help and show work for this
Answer:
2 dollars for kids
5 dollars for adults
Step-by-step explanation:
We will let x= children
y= adult
we know that
33x+42y=276
46x+40y=292
There are a lot of ways you can solve this but I think it's easiest if we use (what I think is called elimination)
we will start by mulitiplying the second equation by 1.05 to get
48.3x+42y= 306.6
We will subtract the first equation from the second to get
15.3x= 30.6
Solve for x and get 2
Now that we know what x equals we can plug that into any equation and solve for y
we have
33(2)+42y=276
y=5
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!
Again, please answer it and explain!
Answer:
B
Step-by-step explanation:
So far, we know that:
∠D = ∠J.
And that:
DE:JK = 14:7 = 2:1
So, to prove that ΔDEF ~ ΔJKL by SAS, DF must be similar to JL, as those are the sides between the angle.
So:
DF:JL = 2:1.
Our answer is B.