Newest SAT math Questions | Wyzant Ask An Expert

01/08/20

Phone rates, money

A long distance carrier charges a flat rate of $.09 per minute for telephone calls. A second carrier charges $.30 for the first minute and $.06 for each additional minute. After how many minutes... more

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Sat Math Science Algebra 1 Algebra 2

01/08/20

Science connection

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Sat Math

01/07/20

For each value of w, determine whether it is a solution to 32=24+w

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Sat Math Math Algebra 1 Algebra 2

01/07/20

a is doubled then cubed

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Sat Math

01/07/20

Math question help

Construct a 95% confidence interval of the population proportion using the given information.x=45, n=150The lower bound is The upper bound is

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Sat Math Math Algebra 1 Algebra 2

01/06/20

A square rug has area 49x^2 – 56x +16 . A second square rug has area 16x^2 + 24x + 9. A) What expression can be written

for the difference in rug areas? B) What significance does the variable x have with respect to the areas of the rugs, and C) what significance do the roots of the expression for the difference of... more

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Sat Math Math Algebra 1

01/06/20

Three sides of a rectangular field have real lengths √f+6, f2-8, and f+4 respectively. The area of the field is 2f2+2f+8 . What is the area of the field?

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Sat Math Math Algebra 1

01/06/20

Calculating the area of a minimum-area triangle . Two lines with equations: y = 2 – (1/2)x and (x-1) = 2 (y-1) respectively are graphed on a Cartesian plane.

A line is drawn through the point (2, -1) which intersects the two previous lines to give a triangle of minimum area, with the point (2,-1) included in one side of that triangle. What is that area?

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Sat Math Math Trigonometry Trig

01/05/20

Find cot theta/2 if tan theta = -7/24 and 3pi/4 < theta < 2pi.

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Sat Math Maths Mathematics

01/05/20

The Area of a triangle is 80 cm^2, Perimeter is 8 cm, so what is the length of the radius of the inscribed circle?

Choices:A)5 cmB)10cmC)20cmD)None of these

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Sat Math Math Algebra 1 Algebra 2

01/04/20

Can one calculate area from a sloped square (as below)?

A unit square, laid out with horizontal and vertical edges, is rotationally-symmetrically sectioned by diagonal segments from each corner to an opposite side such that a smaller interior square is... more

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Sat Math Math

01/04/20

Why no quick check for divisibility by 7?

Quick rules posters for checking divisibility of numbers by integers 2 through 9 never give a quick rule for divisibility by 7. What is the best explanation of the reason for this?

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Sat Math Math Physics

01/04/20

A ball falls (initially at rest) from a height of 10m, and bounces repeatedly.

On each successive bounce, the ball rises only 2/3 as high as on its previous bounce (due only to energy dissipation on impact). The vertical height attained, and the time required to complete each... more

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Sat Math Math Solutions And Mixtures

01/04/20

How many gallons of acid must be added to G gallons of a k% acid solution to bring it up to an m% solution?

A: G/(100-m)B: Gm/(100-m)C: G(m-k)/(100-m)D: 100-m/G(m-k)

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Sat Math Algebra 2 Sat Act

01/04/20

Determining equations for distance and rate formulas.

Two cyclists leave towns 90 miles apart at the same time and travel towards each other. One cyclist travels 5 miles slower than the other. If they meet in 2 hours, what is the rate of each cyclist?

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Sat Math Math

01/03/20

Which of the functions below have a local maximum for the function in the x = (0, +∞) domain?

Functions are 1) x!/e^x 2) e^x/x! 3) x^1000000/e^x 4) x^1000000/1000000! 5) 1000000!/x!Possible multiple choices are: A) 1, 2, and 3 B) 2, 4, and 5 ... more

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Sat Math Math Probability

01/03/20

John is drinking a glass of water with exactly 2 bacteria suspended in it, at random positions. If he drinks ½ the water, what are the probabilities that he drinks zero or one bacterium respectively?

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Sat Math Math Probability

01/03/20

Aaron plays a game in which in round 1, he automatically wins $1. Each successive round, he wins or loses twice the amount of the previous round, with the win or loss randomly chosen.

He may declare in advance of play that he will drop out after a certain number of rounds. How much should he expect to win on the average, and how many rounds should he choose (in advance) to... more

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Sat Math Math

01/03/20

A large number of birds are sitting on a set of 5 electrical wires as follows.

The five horizontal wires are separated in a vertical plane, and birds are arranged on them according to the following rule: The number of birds on each wire equals twice the total of the birds on... more

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Sat Math Math Act Math

01/03/20

A line segment on the number line from 0 to 1 is marked at points corresponding to log [1, 2, 3, ..., 10], thus dividing it into 9 adjacent segments.

The length of the longest such segment minus the length of the shortest such segment represents which value among these choices: log(9/2) , log(18), log (2/9), log (1.8), or log(9^2) ?

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Sat Math Geometry Act Math

01/02/20

You must cross a wide field, which is paved with circular flagstones, travelling only between centers of the stones. How far must you walk?

The circular flagstones are arranged tangent to each other in the closest possible packing, i.e. with six stones surrounding each stone. The field width is W. Neglect the perturbations caused by... more

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Sat Math Geometry Physics

01/02/20

How do you add velocities of objects with multiple frame-of-reference corrections?

On a spherical planet of equatorial circumference 36,000 km, which rotates once/24 hr (west->east, like the Earth), a train is traveling due east (relative to the planet surface) at 200 km/hr at... more

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Sat Math Algebra 1 Act Math

01/02/20

How many integer ordered (x,y) pairs represent possible solutions to a set of (x,y) condition inequalities?

How many ordered pairs of integers represent possible solutions to the set of conditions:y > (1/10)x + (1/10)y < 5 – 0.99xy < -1 + 1.1x

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Sat Math Algebra 1 Algebra 2 Linear Algebra

01/02/20

In a system of pressure-assisted pumps linking 3 tanks, what are the steady-state tank volumes achieved, given an initial volume of 10 gallons in tank A?

A system of 3 tanks (A, B, and C) are linked by 6 pressure-assisted pumps. From tank A, a pump pumps 0.1 gallon/minute per gallon in tank A, to tank B. Another pump pumps 0.2 gallons/minute per... more

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Sat Math

01/01/20

Sat question (Answer is 6)

An after-school sewing club has 120 yards of fabric to divide equally among the members of the club. When two more students join the club at the last minute, each member gets 5 fewer yards of... more

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Phone rates, money

Science connection

For each value of w, determine whether it is a solution to 32=24+w

a is doubled then cubed

Math question help

A square rug has area 49x^2 – 56x +16 . A second square rug has area 16x^2 + 24x + 9. A) What expression can be written

Three sides of a rectangular field have real lengths √f+6, f2-8, and f+4 respectively. The area of the field is 2f2+2f+8 . What is the area of the field?

Calculating the area of a minimum-area triangle . Two lines with equations: y = 2 – (1/2)x and (x-1) = 2 (y-1) respectively are graphed on a Cartesian plane.

Find cot theta/2 if tan theta = -7/24 and 3pi/4 < theta < 2pi.

The Area of a triangle is 80 cm^2, Perimeter is 8 cm, so what is the length of the radius of the inscribed circle?

Can one calculate area from a sloped square (as below)?

Why no quick check for divisibility by 7?

A ball falls (initially at rest) from a height of 10m, and bounces repeatedly.

How many gallons of acid must be added to G gallons of a k% acid solution to bring it up to an m% solution?

Determining equations for distance and rate formulas.

Which of the functions below have a local maximum for the function in the x = (0, +∞) domain?

John is drinking a glass of water with exactly 2 bacteria suspended in it, at random positions. If he drinks ½ the water, what are the probabilities that he drinks zero or one bacterium respectively?

Aaron plays a game in which in round 1, he automatically wins $1. Each successive round, he wins or loses twice the amount of the previous round, with the win or loss randomly chosen.

A large number of birds are sitting on a set of 5 electrical wires as follows.

A line segment on the number line from 0 to 1 is marked at points corresponding to log [1, 2, 3, ..., 10], thus dividing it into 9 adjacent segments.

You must cross a wide field, which is paved with circular flagstones, travelling only between centers of the stones. How far must you walk?

How do you add velocities of objects with multiple frame-of-reference corrections?

How many integer ordered (x,y) pairs represent possible solutions to a set of (x,y) condition inequalities?

In a system of pressure-assisted pumps linking 3 tanks, what are the steady-state tank volumes achieved, given an initial volume of 10 gallons in tank A?

Sat question (Answer is 6)

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