11/23/20

Show all work to solve the equation for x. If a solution is extraneous, be sure to identify it in your final answer. square root of the quantity x plus 6 end quantity minus 4 equals x
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11/23/20

The speed of a runner increased steadily during the first three seconds of a race.
Her speed at half-second intervals is given in the table. Find lower and upper estimates for the distance that she traveled during these three seconds._______ ft (smaller value)_______ft (larger... more
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11/23/20

Solving a word problem using a quadratic equation with rational roots
The area of a rectangle is 42 m2, and the length of the rectangle is 5 m more than twice the width. Find the dimensions of the rectangle.Length:Width:
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11/23/20

What is the slope if a line that has an x-intercept of 3 and passes through the point (0,5)
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11/23/20

Find the point on the graph of f (x) = √x that is closest to the point (4, 0).
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11/23/20

A rectangle with area 288 square inches has a length that is four less than four times the width. Find the length and the width of the rectangle.
I am completely lost. I know that I must use substitution but that's it.
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11/23/20

If β=81°,γ=65°,c=12.12, find all unknown side lengths and angle measures. Round to the nearest hundredth for side lengths and angles, as needed.
If β=81°,γ=65°,c=12.12, find all unknown side lengths and angle measures. Round to the nearest hundredth for side lengths and angles, as needed.
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11/22/20

Let f(x)= x^2+kx+p/x-m have zeros for x at -2 and -5 and be undefined when x=3. Find (2k+3p+4m)
Let f(x)= x^2+kx+p/x-m have zeros for x at -2 and -5 and be undefined when x=3. Find (2k+3p+4m)
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11/22/20

Let i=sqrt-1 and r and w represent real numbers. If (r-4i)(5+3i) = 2+wi then find the value of (r+w)
Let i=sqrt-1 and r and w represent real numbers. If (r-4i)(5+3i) = 2+wi then find the value of (r+w)
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11/22/20

Precalculus Trigonometry question
An ant starts from the point (2, 0) and walks counterclockwise around the circle of radius 2 centimeters centered at the origin. The ant stops walking the first time it reaches a point... more
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11/22/20

Write a unit vector in the direction of the given vector v= 20i - 21j
Please show steps and formulas. Thank you!
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11/22/20

A polar equation of a conic is given. r = 19/ 4 + 3 cos(𝜃)

Vertex'sDirectrixCenterLength of major axislength of minor axis
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11/22/20

Solving a word problem using linear equation
A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $39. The total cost to rent 9 chairs and 7 tables is $63. What is the cost to rent each chair... more
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11/22/20

Complete the table for a savings account in which interest is compounded continuously. (Round your answers to four decimal places.)
Initial Investment: $350Annual % Rate: ______ (%)Time to Double: ______ (yr)Amount after 13 years: $435.21
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11/22/20

A new 2014 luxury sedan that sold for $38,880 has a book value V of $24,319 after t = 2 years.

(a) Find a linear model for the value V of the sedan.V(t) =(b) Find an exponential model for the value V of the sedan. Round the numbers in the model to four decimal places.V(t) =(c) Use a graphing... more
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11/22/20

A large explosion
A large explosion causes wood and metal debris to rise vertically into the air with an initial velocity of 112 feet per second. The functionh(t)=112t-16t^2gives the height of the falling debris... more
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11/21/20

Convergence or Divergence of a Series
A certain ball has the property that each time it falls from height h onto a hard, level surface, it rebounds to a height rh, where 0<r<1. Suppose that the ball is dropped from an initial... more
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11/21/20

Find the direction angle of each vector. v= -7i-4j
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11/21/20

Find the direction angle of each vector. v=-6i+6j
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11/21/20

Need help on geometry question
The area of a square is 200 cm squared. How long is the diagonal? The options are •20 cm•14.1 cm•28.2 cm•141.4 cm
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11/21/20

The temperature y (in degrees Fahrenheit) after t months can be modeled by the function y=−3t^2+18t +53, where 1≤t≤12.
Write the function in vertex form.y=Find the maximum temperature during the year.The maximum temp. is ____ Fahrenheit
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11/21/20

i need help on this

A competition is held to see who can throw a baseball the highest from the front row of the upper deck seats at the stadium, 83 ft above field level. The winner throws the ball with an initial... more
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11/21/20

The length of a rectangle is 1 cm less than 3 times the width. The rectangle has an area of 10 square cm.
Find the exact length of a diagonal of this rectangle.
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11/21/20

math cool down movie thetre
A movie theatre models the revenue from ticket sales in one day as a function of the ticket price, . Here are two expressions defining the same revenue function. According to this model, how high... more
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11/21/20

Need help ASAP Algebra 2
A competition is held to see who can throw a baseball the highest from the front row of the upper deck seats at the stadium, 83 ft above field level. The winner throws the ball with an initial... more
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