# Posts by Nelly

Total # Posts: 141

Algebra 2 check my last answer?!
A cosine function has a period of 3, a maximum value of 20, and a minimum value of 0. The function is a reflection of its parent function over the x-axis. Which function could be the function described? f(x)=10cos(3x)?10 f(x)=10cos(2?3x)+10 <my choice f(x)=?10cos(2?3x)+10 f...

Algebra 2 check
A cosine function has a period of 3, a maximum value of 20, and a minimum value of 0. The function is a reflection of its parent function over the x-axis. Which function could be the function described? f(x)=10cos(3x)?10 f(x)=10cos(2?3x)+10 <my choice f(x)=?10cos(2?3x)+10 f...

Algebra 2 check
A sinusoidal function whose frequency is 3, maximum value is 12, minimum value is ?6 , and y-intercept is (0,?3) . Which function could be the function described? f(x)=9sin(6?x)+3 f(x)=9sin(x3)?3 f(x)=9sin(3x)+3 f(x)=9sin(6?x)?6 <my answer

Math help? Someone help me?
Dewight needs to restrict the domain of the cosine function so that the inverse is a function. Which description best describes how she could restrict the domain? So that y = cos(x) is always decreasing So that y = cos(x) only has one maximum So that y = cos(x) only has one ...

Math
30

geography
Discuss laws, legislation relevant to the issue you ar e discussing and the extent to which these laws protect the individual against human rights violations

It is possible to become a paramedic while doing those subjects?

health
What are examples of being physically active? A. Baking a cake with the family B. Playing Xbox gaming system while sitting in front of the television C. A brisk walk in the morning D. Planning an exercise regimen

math
If three cards are drawn with replacement from a shuffled deck, what is the probability that at least one of them will be a heart?

if a die is tossed four times what is the probability of getting one six

if a die is tossed four times what is the probability of getting three odd numbers

if a die is tossed four times what is the probability of getting anything but a five on every toss

if a die is tossed four times what is the probability of getting at least one six

History
John Marshall

statistics
If p(A)=.50, p(B)=.60, and p(A and B)=.30, Are A and B mutually exclusive events? and independent events?

statistics
if a die is tossed four times what is the probability of getting at least one six

statistics
if a die is tossed four times what is the probability of getting anything but a five on every toss

statistics
if a die is tossed four times what is the probability of getting three odd numbers

statistics
if a die is tossed four times what is the probability of getting one six

physics
what are the dangers of radioactive isotopes?

life science
I need to know hw cn i use examples to ,describe predation,competition and symbiosis,explaining how each interaction influences the population size of the organisms involved.

life science
Organisms involved

life science
Using examples,describe predation,competition and symbiosis,explaining how each interaction influences the population size of the organisms involed.

izazi
identify four environment issues that cause ill-healht to the community

Chemistry
add water to the mixture stir to dissolved sodium carbonate filter to obtain lead carbonate residue and sodium carbonate filtrate wash and dry the residue

Find the area of the Rectangel. . 7x+1 ------------- | |8x | | | | ------------- A.15x+1 B.56x^2+8x C.56x+8 D.15x^2+9x I don't know what to do please help me. I don't understand.

Thank you😂

math
Find the product. (2x)(10x) A.20x B.12x C.20x^2 D.-5x Is the answer A?? Thanks

math
Thank you so much.

math
Write the expression using a single exponent. 2^2*2^8 A.4^10 B.2^10 C.4^16 D.4^16 Is the answer C??

So it's C then? Thank you😀

How many terms are in the following polynomial? 6x^4+3x^3-2x^2+15x-14 A.5 B.4 C.3 D.2 Is the answer A??

math
Find the degree of-5w^3-4w^2+7w+16 A.-5 B.16 C.14 D.3 I don't know how to do this you please help me? Thank you

geometry
Draw an equilateral triangle ABC with side length 4cm to scale and then draw dotted lines to show all axes of symmetry of this triangle

Math
144=Length

SCIENCE
From the following data ,calculate the percentage of KCl in sample of chloride weight of the sample 0.1865, volume of AgNOS required 26.50mL and Ag of AgNO3 =0.008700gram

SCIENCE
ALuminum can be determined gravimetricaly by the reaction with solution of 8-hydroxyquinoline (C9H7NO3).The net ionic equation . A mass of 0.1248g of Al(C9H6NO)3 WAS obtained by precipitating all of the the Al3+ from a solution prepared by dissolving 1.8571g of a mineral. what...

GEOMETRY
write the following composition as one translation: T3,5 0 T4,-4

Math
The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the nearest hundredth. A. 7 inches B. 6.69 inches C. 13.38 inches D. 6.25 inches

Chemistry
what PH would mark the end-point of a weak acid having a ka value of 0.000005 assume the salt formed to be at a molar concentration of 0.05 at the end

algebra
Twice the first number is eleven more than the sum of the other two numbers. The sum of twice the first number and three times the third number is one more than the second number. The second number is equal to the sum of the first number and the third number. Find the three ...

math
What is the area of a parallelogram where the base= 3x+1 and the height= 9. I know the area is base*height but does that mean you distribute the 9?

biochemistry
The following data describe the binding of oxygen to human myoglobin at 37oC. P02 (mm Hg) = 0.5 1 2 3 4 Theta = .161 .277 .434 .535 .605 P02 (mm Hg) = 6 8 12 20 Theta = .697 .754 .821 .885 From these data, estimate: a). P50 b) the fraction saturation of myoglobin at 30 mm, the...

math
600,000=_______ten thousands

math
600,000=

might be

physics
Car A negotiates a curve of 60 m radius at a constant speed of 50 km/h. When A passes the position shown, car B is 30 m from the intersection and is accelerating south toward the intersection at the rate of 1.5 m/s2. Determine the acceleration which A appears to have when ...

Life orientation
I want to know all 5 ways in which the human or environment Nutrition impacts on the community.

Math
Calculate the height of a triangle with base equal to 142cm and area equal to 62,48cm

Math
Calculate the area of a triangle with base equal to 18cm and height equal to 9cn

Math
Calculate the side lenght of square with area 25m

math
Calculate the breadth of a rectangle with lenght 120mm and area 960m

math
Calculate the breadth of a rectangle with lenght 120mm and area 960m

math
Calculate the lenght of a rectangle with area 350cm and breadth 50mm.

life orientation
1, Identify five practice that are in contravention of the basic conditions of employment ACT. 2,What according to the basic conditions of employment ACT applies with regard to the contravention that you have identify

life orientation
1, Identify five practice that are in contravention of the basic conditions of employment ACT. 2,What according to the basic conditions of employment ACT applies with regard to the contravention that you have identify

Calculus
F(x) = (x^3 - x + 1)^4 f'(x)=

health
whatcan parents do to help children develop a positve body image

chemistry
What's the equation written in a sentence for nh4no3(s)=n2o(g)+2h2o(g)

algebra
a piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. the distance along the ground from the bottom of the pole to the end of the wire is 4 feet greater than the height where the wire is attached to the pole. how far up the pole does the guy wire reach?

Calculus
g(x)=5x^2+3x+2 Compose g(g) and find domain

Which of the following sentences is the refusal implied rather than directly stated

math
162.5 miles

math
40

math
Find n if S(sub n) is approximately 15,408.15.

social health
5 ways in which human problem impacts on community.and the relavent sources to support claims.

life orientation
identify and describe one environmental problem that causes ill health,accidents,crises,and disasters within south africa

Life orientation
how can i answer a question that i do not even know the answer

Pre-Calc
Fill in the blank; •In the process of polynomial division (Divisor)(Quotient)+_______=_______ •When a polynomial function f is divided by x-c, the remainder is _______. •If a function f, whose domain is all real numbers, is even and if 4 is a zero of f, then ...

Pre-Calc
Oh yes the first one was a typo it was supposed to be X^2+y^2+ax+by+c=0

Pre-Calc
True or False: •Every equation of the form X^2+y^2+ax+by+c=c •The radius of the circle x^2+y^2=9 is 3 •The center of the circle (X+3)^2+(y-2)^2=13 is (3,-2)

Pre-Cal
Find the distance d(P1,P2) between the points P1 and P2. P1= (-2,1); P2= (0,0) P1= (-1,1); P2= (2,2) P1= (-1,0); P2= (2,4) P1= (2,-3); P2= (4,2)

pre-calc
True or false: Perpendicular lines have slopes that are reciprocals of one another.

pre-calc
Two nonvertical lines have slopes m1 and m2, respectively. The lines are parallel if ___ and the ___ are unequal; the lines are perpendicular if ___.

Math ( Word Problem )
i lke math.

CHEMISTRY
A geologist discovered a new rock which he suspected contained an oxide of an element called mysterium. He gave thr ock to a chemist who ground it up and heated a sample with carbon at a high temperature. No metal was produced in this experiment. 1.Why did the chemist grind ...

Chemistry !
A geologist discovered a new rock which he suspected contained an oxide of an element called mysterium. He gave thr ock to a chemist who ground it up and heated a sample with carbon at a high temperature. No metal was produced in this experiment. 1.Why did the chemist grind up...

MATH HELP
Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

MATH HELP
Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x)

MATH
Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

MATH
MR. BOB PURSLEY HELP ?/

MATH
Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

MATH !!
still don't understand how to combine this . can u show me ?

MATH !!
how to combine ?? that's wat i have problem withh ??

MATH !!
Given that f:x -->3-x g:x --> x+2/x-5 derive the expression for gf(x)

MATH
Given that f:x -->3-x g:x --> x+2/x-5 derive the expression for gf(x)

Englist
QUICKLY AND THOROUGHLY N DAILY ?

Englist
easily

MATH
Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

MATH
how do u get the 3 ?

MATH
The function f and g are defined by : f:x --> 3x+1 g:x --> 9-x Determine the expression for the function gf(x) .

Physics HELPP !!
The antireflecting coating works best if its refractive index is the square root of the refractive index of the lens inthe eye glasses. a) determine the refractive index of the lens that gives the best results

Physics
How to find refractive index ?

Physics
How to find refracticive index ?

MATH
Ok when your plotting a graph of Sin angle i against Sin angle r , which of those goes on the y axix and which goes on x axis??

Physics
Ok when your plotting a graph of Sin angle i against Sin angle r , which of those goes on the y axix ??

Technical Drawing
1. Construct a triangle with dimension 5cm, 6cm and 75 degrees. 2. Construct a triangle with two sides 5cm, 6cm and an included angle of 120 degrees.

Physics
How much energy would your body need to provide for the following : a)sweating and evaporation of 1kg of water from your skin. b)heat loss by radiation at the rate of 100 wats for 12 hours. (the specific latent heat of vaporisation of water is 2.3MJkg-1)

Physics
An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power consumption in watts. d...

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