6,938 Answered Questions for the topic mathematics

Mathematics Math Biology Statistics

10/28/21

Probability Question
I want to check my work for this question, my answer is 0.131 but I think I might have calculated this wrong.Question: The US preterm birth rates have declined between 2006 and 2008. In 2008, the... more
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10/28/21

Evaluate double integral √(y^2+z^2) over the region R in the Y-Z plane bounded by y^2+z^2=4.

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10/28/21

How to solve this math by k(x+h)-k(x)/h this formula?

Consider the piecewise functiong(x)={(1+x)4−1, if x≥0 sin(4x), if x<0.Discover whether g(x) is differentiable at x=0 using the limit definition of the derivative. Without carrying out any... more
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Mathematics Precalculus Algebra

10/28/21

Are cos^2 x and cos (x)^2 same?
Cos2x and Cos(x)2
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Mathematics Word Problems

10/28/21

The width of a rectangle is 4 meters less than its length. If the area of the rectangle is 375sqm, what are the measurements of its length and width?
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Mathematics Math Sat Math Act Math

10/28/21

AMDM (Mathematics) Question
A vector starts at point ( 7, -5) and ends at point (9, -4) what is the vertical component of the vector?
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Mathematics Math Sat Math Act Math

10/28/21

AMDM (Mathematics) Question
A person is pushing on a car with a force of <25,-13> and another person is pushing on a car with a force of <18,2>. What is the net force in the vertical direction?
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Mathematics Math Sat Math Act Math

10/28/21

AMDM (Mathematics) Question
A person is pushing on a car with a force of <19,-15> and another person is pushing on a car with a force of <17,9>. What is the net force in the horizontal direction?
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Mathematics Math Sat Math Act Math

10/28/21

AMDM (Mathematics) Question
One force of magnitude 79 acts on an object. Another force of magnitude 61 acts on the object at a right angle, what is the magnitude of the resultant force on the object?
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Mathematics

10/27/21

Math Word Problem
Lena, Juan, and Rafael have a total of $90 in their wallets. Lena has $5 less than Rafael. Juan has 3 times what Rafael has. How much does each have?
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Mathematics Math Calculus Precalculus

10/27/21

How to solve this one?
Check whether lim(x→−2) f(x) exists or not, where f(x)= {3x+2 , x<−2; x2+3x−1, x≥−2}
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Mathematics Math Calculus Precalculus

10/27/21

What is the Logical Equivalence by following the data below?
Use truth tables to show if the two statements are logically equivalent or not.(p↔~q) ≡ (p ˄~q) ˅ (~p ˄ q)
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Mathematics Business

10/26/21

Question: Find and Evaluate Composite Functions GivenGiven f(x) = -2x - 3 and g(x) = –x2 -7, find (g o f )(x).
Question: Find and Evaluate Composite Functions GivenGiven f(x) = -2x - 3 and g(x) = –x2 -7, find (g o f )(x).
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Mathematics Math Algebra 1 Algebra 2

10/26/21

Line g contains A(–4, 3) and B(3, 1). Line h contains S(–1, –1) and T(6, y). In order for g to be parallel to h, what is the y-coordinate of T?
A)-3B)-1C)0D)1
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10/26/21

Write an equation that gives the distance travelled by the falling object in the nth second (i.e., an). How many feet would an object fall in the tenth second?

To prove that objects fall at the same rate, Galileo dropped two objects with different weights from the Leaning Tower of Pisa in Italy. The objects hit the ground at the same time. When an object... more
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10/26/21

Find the sum of the first 23 terms of the arithmetic sequence 4m-3,-10,….
Find the sum of the first 23 terms of the arithmetic sequence 4m-3,-10,...
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10/26/21

An arithmetic sequence or progression is given by k,2k/3,k/3,0,…
An arithmetic sequence or progression is given by k,2k/3,k/3,0,...a)   Find the sixth term. b)   Find the nth term.c)   If the 20th term is equal to 15, find k.
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10/26/21

Find the 17th term of the arithmetic progression with first term 5 and common difference 2.

 Find the 17th term of the arithmetic progression with first term 5 and common difference 2.
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10/25/21

Determine the second derivative of Q(v)
Q(v) = 2/(6+2v-v2)4
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10/25/21

Using a geometric construction and the squeeze theorem, find lim θ→0^+ tanθ /θ
lim tanθ/θθ→0+
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10/25/21

Given, y=(√1+cos(x^2)). Find dy/dx by using chain rule.
Given,y = (√1+cos(x2))
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10/25/21

I need help with a business math problem. I do not know how to start

Pete's Real Estate is currently valued at $68 ,000. Pete feels the value of his business will increase at a rate of 8% per year,compounded semiannually for the next 6 years. At a local fund-raiser,... more
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10/25/21

Find S4 of the sequence 105+110+115+⋯.
Find S4 of the sequence 105+110+115+....
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10/25/21

Find the 100th term in the sequence an=−18/n.
Find the 100th term in the sequence an=−18/n.
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10/25/21

Rewrite the series 1+12+27+⋯ using sigma notation.
Rewrite the series 1+12+27+...  using sigma notation.
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