2,684 Answered Questions for the topic SAT math

Sat Math Math Calculus Algebra

11/11/19

Calculate the number of combinations of 11 items taken 4 at a time.
Calculate the number of combinations of 11 items taken 4 at a time.
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Sat Math Math Calculus Algebra

11/11/19

Calculate the number of permutations of 12 items taken 4 at a time. N =

Calculate the number of permutations of 12 items taken 4 at a time.N = 
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Sat Math Math Calculus Algebra

11/11/19

In how many ways can we select 6 people from a group of 18 and award first through sixth prizes? Leave your answer in terms of factorials.

In how many ways can we select 6 people from a group of 18 and award first through sixth prizes? Leave your answer in terms of factorials. 
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Sat Math Math Calculus Algebra

11/11/19

In how many ways can we select 3 people from a group of 11 people and award them first through third prizes?
In how many ways can we select 3 people from a group of 11 people and award them first through third prizes?
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Sat Math Math Calculus Algebra

11/11/19

In how many ways can I arrange the five letters A, B, C, D, E? There are possible arrangements.
In how many ways can I arrange the five letters A, B, C, D, E?There are _ possible arrangements.
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11/10/19

Finding Domain of functions?
find domain of the functions and show workf(x) = 5x2 + 2x - 1g(x) = 1 - 2x2s(y) = 3y/y + 5g(y) = √y-10
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11/10/19

testing for functions represented algebraically??
I can't figure out how to solve these determine whether equations represents a function and show work.  x2 + y2 = 4   2x + 3y = 4  (x-2)2 + y2 = 4  y= √x+5
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11/08/19

Sum and Difference Formulas
Express the following as a function of a single angle.tan145°+tan85°/1-tan145°tan85°
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11/08/19

Sum & Difference Formulas
Express the following as a function of a single angle.tan(-34°)+tan(-110°)/1-tan(-34°)tan(-110°)
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11/08/19

any ideas in how to solve this problem ?
A coin is tossed four times. Then it is tossed again, the number of times a head was obtained in the first four tosses. What is the probability of getting at least 5 heads altogether?
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11/06/19

Sum & Difference Formulas
Find sin105° without using a calculator.
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11/05/19

Sum and Difference Formulas
Express cos(60°)cos(-20°)-sin(60°)sin(-20°) as a function of a single angle.
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Sat Math Math Algebra 1

11/04/19

A farmer has a field of 70 acres in which he plants potatoes and corn. Continued below...
The seed for potatoes costs $20/acre, the seed for corn costs $60/acre and the farmer has set aside $3000 to spend on seed. The profit per acre of potatoes is $150 and the profit for corn is $50... more
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Sat Math

11/04/19

A triangle has vertices L(-5,6), M(-2,-3), and N(4,5). Write an equation for the line perpendicular to side LM that contains the point N.
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Sat Math Math

11/04/19

Need help finding the answer to this equation.
I can't figure out this equation out. There are four choices but I don't know which is the right one. Please help.f is a quadratic function whose graph is a parabola opening upward and has a... more
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Sat Math Prealgebra Algebra

11/03/19

Can someone help me?
so I am having issues with this problemcan someone help me how I would start it?graph the following function and identify any shifts, stretches, and symmetry and x and y intercepts:y = f(x) = (x -... more
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11/01/19

Trig Question Thank You In Advance
Solve for x by factoring where pi/2 ≤ x ≤ pi.3 csc x cot^2 x = csc x
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11/01/19

Trig Question, Solve For X

Solve for x where pi/2 ≤ x ≤ 3pi/2.- 4cos^2 x + 4sqrt(2) sin x + 6 = 0.When I did the problem I got 5pi/6, but I am not sure if that is correct.
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Sat Math Math Precalculus Psat

10/31/19

Write an equation for each parabola
(a)vertex (2,-1)focus (2,-5)(b)focus (3,5)directrix x=0
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10/31/19

I don't even know where to start
A bridge with a supporting parabolic arch spans 60 feet with a 30-ft wide road passing underneath the bridge. In order to have a minimum clearance of 16 feet at either edge of the roadway, what is... more
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Sat Math Math Precalculus Psat

10/30/19

In a mixture of potting soil, the ratio of peat moss to compost is 3:5. How much of each is in a 12 pound bag of potting soil?
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10/30/19

can I get some explanation for this problem please

A coin is tossed four times. Then it is tossed again, the number of times a head was obtained in the first four tosses. What is the probability of getting at least 5 heads altogether?
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Expert Answers •1
Sat Math

10/29/19

Which of the following expressions is not equivalent to 6^4/6^6 ?
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10/29/19

Trig Question, Please Help If You Know How To Do The Problem
I keep having to ask for help with this lesson, so if you have time time and are able to help me, step-by-step would be a huge help. Find x where pi ≤ x ≤ 2pi. 4 cos^2 x - 2 = sec^2 x - tan^2 x
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10/28/19

Trig Question, Help Needed Fast
find x where 0 ≤ x ≤ 2pi. cos x - tan^2 x=1. give your answers as a fraction ordered from least to greatest.
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