03/29/23
Please, I need help fast
Tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation 75 hours. Find the probability that a randomly selected light bulb will last...
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03/29/23
Lucy has 3 times as many pennies as nickles if she has $0.88 how much nickles does she have
03/28/23
How many cubes with an edge of 1/4 inch are needed to build a cube with an edge length of 1 inch?
I'm very confused with this.
03/28/23
pre calc question
Logan leaves school to walk home. His friend, Maia, notices 0.5 hours later that Logan forgot his phone at the school. So Maia rides her bike to catch up to Logan and give him the phone. If Logan...
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03/28/23
Pre calc question
A bank loaned out $3700, part of it at a rate of 7.1% per year and the rest of it at a rate of 5.6% per year. The total amount of interest owed to the bank at the end of one year was $252.99.Find...
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03/28/23
You roll a 6-sided die. What is P(1)? Write your answer as a fraction or whole number.
You roll a 6-sided die.What is P(1)?Write your answer as a fraction or whole number.
03/28/23
angles for math
An isosceles triangle has an angle that measures 102°. What measures are possible for the other two angles?
03/28/23
or The equation for line r can be written as y= – 4 9 x–2. Line s is perpendicular to line r and passes through (3,5). What is the equation of line s?
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03/28/23
I need help with my home work
Country Day's scholarship fund receives a gift of $ 145000. The money is invested in stocks, bonds, and CDs. CDs pay 5.75 % interest, bonds pay 2.4 % interest, and stores pay 10.7 % interest....
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03/28/23
Which point would not be a solution to the system of linear inequalities shown below?
y≥−x+8y>−2x+2(8,6) (2,10)(12,0) (-1,1)
03/28/23
Write an expression for the apparent nth term an of the sequence. (Assume that n begins with 1.)
-10/11 , 11/12, -12/13, 13/14, -14/15, ...a(n) =
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03/27/23
Simplify sec(t) cot(t) to a single trig function. Your answer should be one of the following:
1, sin(t), cos(t), tan(t), cot(t), sec(t), csc(t)
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03/27/23
Mathematics and problem solving with equations
The driver of a taxi charges $2 every minute plus a pickup fee of $3. Write an expression for the total cost of a taxi ride. How much does an 18-min drive cost?Answer:
03/27/23
Is g the inverse function of f?
Let f : [−2,∞[→ R, f(x) = √ x + 2 and g : R → R, g(x) = x^2 − 2. (a) Determine f ◦ g. (b) Determine g ◦ f. (c) Is g the inverse function of f? Why or why not?
03/27/23
Give an example of function
A function f is called increasing, if f(x1) ≤ f(x2) whenever x1 < x2. A function f is called decreasing, if f(x1) ≥ f(x2) whenever x1 < x2. (a) Give an example of an increasing function. (b)...
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03/27/23
well-defifined functions
Are the following well-defifined functions (i.e. satisfy the conditions of the defifinition)? (a) f :R → R, f(x) = 1/ x+2 (b) g :N → Z, g(x) = (−1)^x (c) h: N → N, h(x) = x − 1.
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