6,938 Answered Questions for the topic mathematics

Mathematics

06/13/21

Frank purchased postcards for $2 each and ornaments for $7 each. If he spent a total of $42 on 11 souvenirs, how many ornaments and how many postcards did Frank purchase?
Follows • 1
Expert Answers •1
Mathematics Math Sat Math Gmat

06/13/21

Applications of Integration
Use calculus to find the area of the triangle with the vertices (0, 5), (2, -2), and (5, 1).Area between curves =
Follows • 1
Expert Answers •1
Mathematics Math Calculus

06/13/21

Please help me with this question
Find the largest value q such that the function f : (−∞, q] → R given by f(x) = −x 2 + 2x + 8 is injective.
Follows • 1
Expert Answers •1
Mathematics Precalculus

06/12/21

Assume A is a 3 x 3 matrix with |A| ≠ 0. Show that (AT)-1= A by using your own example. Hint : If |A| ≠ 0, then A has an inverse A-1

I dont know what is (AT)-1 means
Follows • 0
Expert Answers •1
Mathematics

06/12/21

Determine the location and values of the absolute maximum and absolute minimum for the given function

f(x)=(-x+2)4,
Follows • 1
Expert Answers •1

06/11/21

If $3840 is deposited into a bank account at a 5% interest rate how long will it take the account to make $960 in interest?
Follows • 2
Expert Answers •3

06/11/21

Find the interest rate (as a percent). Principal = $360 Interest = $17.55 Time = 9 months. WRITE YOUR ANSWER AS A PERCENT!
Follows • 1
Expert Answers •2

06/11/21

If $2,500 is loaned for 18 months at a 4.5% annual rate, how much interest will need to be paid?

Follows • 1
Expert Answers •1

06/11/21

How much should you deposit into an account that pays 3% interest to earn $900 after 10 years?
Follows • 1
Expert Answers •1
Mathematics

06/11/21

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 2, and has the zeros −3, 0, (2 + √3), and (1 + 4i).
Follows • 1
Expert Answers •1
Mathematics

06/11/21

There are 100 students at school. Of those students, 60 speak English, 40 speak French, and 10 students speak neither of these two languages.Calculate how many students speak both English and French.
Follows • 1
Expert Answers •1
Mathematics

06/11/21

Tony is a software salesman. His monthly salary is $1900 plus an additional $50 or every copy of English is Fun he sells. Let S represent his total salary this month (in dollars)
 and let N represent the number of copies of English is Fun he sells. Write an equation relating S to N and then graph your equation using the axes below.
Follows • 1
Expert Answers •2
Mathematics Pi

06/11/21

A circular dance stage has an area of 256π square feet. What is the circumference of the stage rounded to the nearest hundredth? A-804.25 B-402.12 C-100.53 D-50.27
Follows • 1
Expert Answers •1
Mathematics

06/10/21

Math help please

At a basketball​ game, a team made 53 successful shots. They were a combination of​ 1- and​ 2-point shots. The team scored 86 points in all. Write and solve a system of equations to find the number... more
Follows • 1
Expert Answers •1
Mathematics Math Calculus Precalculus

06/10/21

Find the bearing from Port B to the current location of the ship.
A ship left Port A and sailed 122 miles due east to Port B. From Port B, the ship sailed 253 miles northwest and stopped. Find the bearing from Port B to the current location of the ship.
Follows • 1
Expert Answers •1
Mathematics Math Calculus Trigonometry

06/10/21

Find θ if d is 2.6 miles. Round to the nearest tenth.
The radar on a ship picks up two shipwrecks, A and B, 5.12 miles beneath the surface. The distance between the shipwrecks is 1.25 miles. The angle of depression to Shipwreck B depends on the... more
Follows • 1
Expert Answers •1
Mathematics

06/10/21

The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second side. The perimeter of the triangle is 106 feet. Find the three sides.
Follows • 1
Expert Answers •1
Mathematics Math Statistics

06/10/21

Hi! please help me solve my this
The monthly income of the workers at the Microsoft plant are distributed normally. Suppose the mean monthly income is P30,000 and the standard deviation is P5,000. 20% of workers earn how much per... more
Follows • 1
Expert Answers •1
Mathematics

06/10/21

you start at (4,6) and you move 3 units right and 1 unit down. what is the answer
Follows • 1
Expert Answers •1
Mathematics Math Volume

06/10/21

Please help!!! Volume Math Problem!!
Your mother tells you take your little sister for ice cream. On the way there your sister tells you, she wants one scoop of chocolate and one scoop of the pink ice cream (strawberry). Now you know... more
Follows • 1
Expert Answers •1
Mathematics Math Algebra 1 Algebra 2

06/09/21

URGENT HELP PLEASE, Statistics Questions, please help!!
a) Create a scatter plot of time spent on the Internet versus timespent watching television, which is the independent (x) variable and dependent variable?
Follows • 1
Expert Answers •1
Mathematics Math Algebra 1 Algebra 2

06/09/21

External variable meaning, please help!!
What is "external variable" ? Please explain + provide examples.
Follows • 1
Expert Answers •1
Mathematics Math Algebra 1 Algebra 2

06/09/21

Urgent Help, Statistics Question, Linear Correlation

Which is the correct answer and explain why please. The answer for this was D. but I thought it was B. and I don't understand why. And what do they mean by "hidden variable," where does it usually... more
Follows • 1
Expert Answers •1
Mathematics Math Algebra 2 Maths

06/09/21

Solve: -5x^2 + 5 = -2x
The solution contains a reduced fraction ± another reduced fraction with a radical numerator. What is this fraction with a radical numerator?(A) ± (2√6 i)/5(B) ± (2√26)/13(C) ± (√26 i)/5(D) ±... more
Follows • 2
Expert Answers •2
Mathematics

06/09/21

Probability and statistics

How many four-letter permutations can be formed from The first five letters of the alphabet?
Follows • 0
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.