Answer:
6/25
Step-by-step explanation:
:p
What is the solution set of the equation (x – 2)(x – a) = 0?
A –2 and a
B –2 and –a
C 2 and a
D 2 and –a
E 2 only
eek I don't know aaa
A circle with radius of 2 cm sits inside a circle with radius of 4 cm.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
answer: 37.7cm^2
area of 2cm = 12.57cm^2
area of 4cm = 50.27cm^2
50.27 - 12.57 = 37.7
Can someone please solve this
9514 1404 393
Answer:
64 degrees
Step-by-step explanation:
The mnemonic SOH CAH TOA is intended to remind you of the relations between triangle sides and trig functions. Here, the marked sides are opposite and adjacent to the marked angle, so the relevant relation is ...
Tan = Opposite/Adjacent
tan(θ) = 29/14
To find the angle measure, we use the inverse function. It may be called tan⁻¹ on your calculator. It also goes by the name "arctangent." The term "arctan" can be thought of, or even pronounced as, "the angle whose tangent is ...".
θ = arctan(29/14) = 64.23°
The measure of angle θ is about 64°.
_____
Additional comment
The default units for angle measure are radians in most spreadsheets and on-line calculators. You need to make sure your hand-held calculator mode is set to give angles in the units you want. Here, we've given the angle in degrees, which is usually what is expected in problems like this.
Which of the following is the solution to the differential equation dy/dx=2xy/x^2+1 whose graph contains the points (0,1)?
A. y=ex^2
B. y=x^2+1
C. y=ln(x^2+1)
D. y=1+ln(x^2+1)
E. y=sqrt(1+2ln(x^2+1))
Answer:
B. y = x² + 1
General Formulas and Concepts:
Symbols
e (Euler's number) ≈ 2.7182Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
FunctionsAlgebra II
Logarithms - ln and eCalculus
Derivatives
Derivative Notation
Derivative of a constant is 0
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Slope Fields
Solving Differentials - Integrals
Integration Constant C
U-Substitution
ln Integration: [tex]\displaystyle \int {\frac{1}{x}} \, dx = ln|x| + C[/tex]
Step-by-step explanation:
*Note:
When solving differential equations in slope fields, disregard the integration constant C for variable y.
Step 1: Define
[tex]\displaystyle \frac{dy}{dx} = \frac{2xy}{x^2 + 1}[/tex]
Point (0, 1)
Step 2: Rewrite Differential
Rewrite Leibniz Notation using Separation of Variables.
[Separation of Variables] Isolate x's together: [tex]\displaystyle dy = \frac{2xy}{x^2 + 1}dx[/tex][Separation of Variables] Isolate y's together: [tex]\displaystyle \frac{1}{y}dy = \frac{2x}{x^2 + 1}dx[/tex]Step 3: Integrate Pt. 1
Solving general form of differential using integration.
[Differential] Integrate both sides: [tex]\displaystyle \int {\frac{1}{y}} \, dy = \int {\frac{2x}{x^2 + 1}} \, dx[/tex][Left Integral] ln Integration: [tex]\displaystyle ln|y| = \int {\frac{2x}{x^2 + 1}} \, dx[/tex]Step 4: Identify Variables
Set up u-substitution for right integral.
u = x² + 1
du = 2xdx
Step 5: Integrate Pt. 2
[Right Integral] U-Substitution: [tex]\displaystyle ln|y| = \int {\frac{1}{u}} \, du[/tex][Right Integral] ln Integration: [tex]\displaystyle ln|y| = ln|u| + C[/tex]Back-Substitute: [tex]\displaystyle ln|y| = ln|x^2 + 1| + C[/tex][Equality Property] Raise e on both sides: [tex]\displaystyle e^{ln|y|} = e^{ln|x^2 + 1| + C}[/tex]Simplify: [tex]\displaystyle |y| = C|x^2 + 1|[/tex]General Form: [tex]\displaystyle |y| = C|x^2 + 1|[/tex]
Step 6: Solve Particular Solution
Since both sides have absolute value, assume that the particular solution will be positive.
Substitute in point [General Form]: [tex]\displaystyle |1| = C|(0)^2 + 1|[/tex][Particular] |Absolute Value| Evaluate exponents: [tex]\displaystyle |1| = C|1|[/tex][Particular] Evaluate absolute values: [tex]\displaystyle 1 = C[/tex][Particular] Rewrite: [tex]\displaystyle C = 1[/tex]Substituting integration constant C into the general form:
Particular Solution: [tex]\displaystyle y = x^2 + 1[/tex]
Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Differentials and Slope Fields
Book: College Calculus 10e
The diagonals of a parallelogram are congruent
Always True
Sometimes True
Never True
Step-by-step explanation:
i believe it is always true. not 100% sure though
If the area of the base of a rectangular prism is 35 square feet and the volume is 175 cubic feet, what is the height of the prism?
Answer:
5 ft
Step-by-step explanation:
area = L * W * H
35 = L * W
Volume = (L *W) * H
since we have already found that L * W is already 35
175 = 35 * H
Divide by 35 on both sides to get H
175/35 = 5
answer = 5 ft
2 cot^2t sin t - cot^2t = 0
2 cot²(t ) sin(t ) - cot²(t ) = 0
cot²(t ) (2 sin(t ) - 1) = 0
cot²(t ) = 0 or 2 sin(t ) - 1 = 0
cot(t ) = 0 or sin(t ) = 1/2
cos(t ) / sin(t ) = 0 or sin(t ) = 1/2
cos(t ) = 0 or sin(t ) = 1/2
[t = cos⁻¹(0) + 2nπ or t = cos⁻¹(0) - π + 2nπ]
or [t = sin⁻¹(1/2) + 2nπ or t = π - sin⁻¹(1/2) + 2nπ]
(where n is any integer)
t = π/2 + 2nπ or t = -π/2 + 2nπ or t = π/6 + 2nπ or t = 5π/6 + 2nπ
Note that the first two families of solutions overlap and can be condensed, so that
t = π/2 + nπ or t = π/6 + 2nπ or t = 5π/6 + 2nπ
The equation x - 6x = 72
Answer:
-72/5
Step-by-step explanation:
x-6x is -5x and now we have -5x=72 we divide both sides by 5 and we get -72/5
If a television is priced at $1,287.99, how much will you pay if the television is discounted by 12%?
Answer:
if the television is discounted by 12%
this implies,
if price of television is 100 we can buy it (100 -12) =88
if price of television is 200 we can buy it (200 -12.2) = 200 -24 = 176
we get it easily.
88/100 . 200 = 176 (. implies multiplication)
so,
If a television is priced at $1,287.99
88/100. $1,287.99= $1133.4312
Step-by-step explanation:
Answer:
cute kaayu ko Kay vjfhfhfhh
Given g(x) = -x – 4, solve for x when g(x) = -4.
Answer:
-8
Step-by-step explanation:
Please help me I need
help me out branniest to whoever rught
Answer:
(0,-9), x = 0, (-3,0), (3,0), domain, -9
Step-by-step explanation:
Complete the square and you can read everything off the equation,
y = x^2 - 9
= (x - 0)^2 - 9
Vertex : (0,-9)
Axis of symmetry: x = 0
x-intercepts: x^2 = 9 -> x = ±3
Left x-intercept: (-3,0)
right x-intercept: (3,0)
Since the function is well-defined for any x-values,
we can say that its domain is the set of all real numbers.
Since the minimum point of the graph is (0,-9),
The range will be greater than or equal to -9.
Answer:
-
Step-by-step explanation:
-
what is the slope of a line that passes through the points (-3, 2) and (-6, 5)
A. -3
B. -1
C. 1/3
D. 1
Answer:
download a graphing calc it helps a lot, just put the points and it tells u the slope and all that :)
Step-by-step explanation:
° • .°• ✯
° • .°• ✯ ★ * ° °·
° • .°• ✯ ★ * ° °· . • ° ★ • ☄
° • .°• ✯ ★ * ° °· . • ° ★ • ☄▁▂▃▄▅▆▇▇▆▅▄▃▁▂
Find the next term in the following sequence 8, 13, 6, -16, -49, -82
Answer:
Unidentifiable.
Step-by-step explanation:
8 to 13 is +5. 13 to 6 is -7. 6 to -16 is -20. -20 to -49 is -19. -49 to -82 is -33.
There is no distinguishable pattern since the differences between the terms vary significantly and in unpredictable ways. Make sure to double check you've got all your numbers correctly. <3
There is no pattern present the in the sequence.
What is the sequence?A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.
The sequence is given below.
8, 13, 6, -16, -49, -82
The difference between the successive terms is calculated as,
13 - 8 = 5
6 - 13 = -7
- 16 - 6 = - 22
- 49 + 16 = -33
- 82 + 49 = -33
From the above, it can be observed that there is no pattern present the in the sequence.
More about the sequence link is given below.
https://brainly.com/question/21961097
#SPJ5
6. Mr. Bernard travels 5.12 km per hour on his bike. How far can he travel in 3.25 hours?
C. 16.64 km
A 1.664 km
B. 166.4 km
D. 1664
7. Mrs. Allysa purchased 48 pencils at P 4.50 each. How much did she pay for all the pencils?
A P 261.00
B. P 162.00
B. P 216.00
D. 612.00
8. The Villaroel family bought a 125.65 square meter lot at P 4500.00 per square meter. How much did they
pay?
A. P556 425
B. P 565 425
C. P 556 452
D. P 655 425
9. What is 2.7 – 10?
A 2.70
B. 0.027
C. 0.27
D. 27
10. What is 98.75 +4?
A. 24. 6877
B. 24.6885
C. 24.6865
D. 24.6875
11. A store owner has 63 kilograms of candy. If she puts the candy into 21 jars, how much candy will each jo
contain?
A 4 kg
B. 3 kg
C. 0.4 kg
D. 0.3 kg
12. It is the quantitative relation between two amounts showing the number of times one value contains or is
contained within the other.
A. proportion
B. ratio
C. number
D. quantity
13. It is a statement that two ratios are equal.
A. Proportion
B. ratio
C. number
D. quantity
14. What ratio is equal to 3.5?
A 6:8
B. 4:10
C. 5:10
D. 6:10
15. What ratio is proportional to 4:6?
A. 1.2
B. 2:3
C. 5:10
D. 3:12
Answer:
6. C. 16.64 km
7. B. P 216.00
8. B. P 565 425
9. C. 0.27
10. D. 24.6875
11. B. 3 kg
12. B. ratio
13. A. Proportion
14. D. 6:10
15. B. 2:3
Step-by-step explanation:
6. Mr. Bernard travels 5.12 km per hour on his bike. How far can he travel in 3.25 hours?
Speed = 5.12km/hr
Time = 3.25 hr
To find the distance;
Distance = speed * time
Distance = 5.12 * 3.25
Distance = 16.64 km
7. Mrs. Allysa purchased 48 pencils at P 4.50 each. How much did she pay for all the pencils?
Quantity = 48 pencils
Cost price = P 4.50
To find the total selling price;
Total = quantity * cost price
Total = 48 * 4.50
Total = P 216
8. The Villaroel family bought a 125.65 square meter lot at P 4500.00 per square meter. How much did they
pay?
Quantity = 125.65 m²
Cost price = P 4500
Total price = 125.65 * 4500
Total price = P 565425
9. What is 2.7/10 = 0.27
10. What is 98.75/4 = 24.6875
11. A store owner has 63 kilograms of candy. If she puts the candy into 21 jars, how much candy will each jar
contain?
Mass = 63 kg
Amount = 21 jars
Each jar = 63/21 = 3 kg
12. Ratio: It is the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
13. Proportion: It is a statement that two ratios are equal.
14. What ratio is equal to 3:5?
We would multiply both ratio by 2
3:5 * 2 = 6:10
15. What ratio is proportional to 4:6?
We would divide both ratio by 2
4:6 / 2 = 2:3
46 in. =_____________ft _____________in.
Answer:
its gonna be 3ft and 10 inch
I -3 I + I -7 I =
Question 1 options:
A. -10
B. 10
C. -4
D. 4
es el punto donde coinciden tres aristas
I need this answer fast pls help
0.4x + x2.9 = 1.5
what is x
Answer:
3.3x =15
x=15÷3.3
x= 4.5454545454
How do I solve this problem?
6x + 9 <7x
Answer:
x > 9
Step-by-step explanation:
6x + 9 < 7x .
-6x -6x <---- Subtract 6x from both sides.
9 < x <----- 7x - 6x = 1x (which can also be written as just x)
Therefore the answer is x > 9.
Children 12 and under eat free at a local restaurant. If x represents age, write an inequality to represent people who do not get a discount.
Answer:
< could be it (●'◡'●)
Step-by-step explanation:
The function g(x) is defined as shown.
StartLayout enlarged left-brace 1st row 1st column 3x minus 2, 2nd column negative 4 less-than-or-equal-to x less-than negative 2 2nd row 1st column negative x minus 1, 2nd column negative 2 less-than-or-equal-to x less-than 1 3rd row 1st column 6, 2nd column 1 less-than-or-equal-to x less-than-or-equal-to 3 EndLayout
What is the value of g(0)?
Answer:
B. -1
Step-by-step explanation:
I got it right on Edge.
Answer:
f(−3) =
✔ –5/2
f(−1) =
✔ 3/2
f(3) =
✔ 3/4
Step-by-step explanation:
got it right on edg 2022. make me brainliest
100 points!! Please help!! I am lost!
The sum of three numbers is 254.772. We can get the biggest and smallest numbers if we move the decimal point in the middle number two digits to the right and one digit to the left, respectively. What is the middle number?
Answer:
12.3435
Step-by-step explanation:first this then that then this and that is the middle number.
the reason physical state affect the rate of a chemical rection
Answer:
Usually reactions speed up with increasing temperature. Physical state of reactants. Powders react faster than blocks - greater surface area and since the reaction occurs at the surface we get a faster rate. The presence (and concentration/physical form) of a catalyst (or inhibitor).
Step-by-step explanation:
Please help this is due TODAY
Calculate the unknown variable value .
Do not answer with a one answer, blank or a ridiculous answer please this is serious.
Answer:
a=116.5°
b=116.5°
Step-by-step explanation:
360-95-32=233
233÷2=116.5
a and c are equal, so both are 116.5
Find The Slope Of The Line.
1/3
3/1
6/2
-3/1
If there are 30 boys and 12 girls in a room, fill out all of the possible ratios of boys to
girls that could be made.
Answer:
12:30
6:15
2:5
24:60
48:120
What is the function of the graphed below?