Maths-
SAT
Easy
Question
In the xy-plane, line k intersects the y-axis at the point (0, - 6) and passes through the point (2, 2). If the point (20, w) lies on line k, what is the value of w?
The correct answer is: 74
The equation of line passing through (0, -6) & (2, 2)
w = 4(20) – 6
w = 80 – 6 = 74.
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Maths-
The formula above is Ohm's law for an electric circuit with current I, in amperes, potential difference V, in volts, and resistance R, in ohms. A circuit has a resistance of 500 ohms, and its potential difference will be generated by n six-volt batteries that produce a total potential difference of 6n volts. If the circuit is to have a current of no more than 0.25 ampere, what is the greatest number, n, of six-volt batteries that can be used?
The formula above is Ohm's law for an electric circuit with current I, in amperes, potential difference V, in volts, and resistance R, in ohms. A circuit has a resistance of 500 ohms, and its potential difference will be generated by n six-volt batteries that produce a total potential difference of 6n volts. If the circuit is to have a current of no more than 0.25 ampere, what is the greatest number, n, of six-volt batteries that can be used?
Maths-SAT
Maths-
y = -16t2 + 64t + 80
The equation above gives the height of an object above the ground, y, in feet, t seconds after it is launched from a platform. How many seconds after it is launched does the object reach the ground?
y = -16t2 + 64t + 80
The equation above gives the height of an object above the ground, y, in feet, t seconds after it is launched from a platform. How many seconds after it is launched does the object reach the ground?
Maths-SAT
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What value of x satisfies the equation above?
What value of x satisfies the equation above?
Maths-SAT
Maths-
If ax+ a= 3 , where a is a nonzero constant, which of the following must be equal to x+ 1?
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Maths-SAT
Maths-
The equation above is true for all x > 2 , where r and t are positive constants. What is the value of rt?
The equation above is true for all x > 2 , where r and t are positive constants. What is the value of rt?
Maths-SAT
Maths-
The wholesale price of a kilogram of lentils decreased by 1 % from the previous month for six consecutive months. If x is the number of months since the price began to drop and y is the cost of a kilogram of lentils, which of the following equations could model the cost of lentils over this time period?
The wholesale price of a kilogram of lentils decreased by 1 % from the previous month for six consecutive months. If x is the number of months since the price began to drop and y is the cost of a kilogram of lentils, which of the following equations could model the cost of lentils over this time period?
Maths-SAT
Maths-
ax -4 (3+2x) = - 12
In the equation above, a is a constant. For what value of a does the equation have infinitely many solutions?
ax -4 (3+2x) = - 12
In the equation above, a is a constant. For what value of a does the equation have infinitely many solutions?
Maths-SAT
Maths-
The diagram above represents Edward T. Hall's concept of space surrounding a person de(med by four nonoverlapping regions. Intimate space is the region inside a circle of radius 1 foot. Personal space is the region within a circle of radius 4 feet but outside intimate space. Social space is the region within a circle of radius 12 feet but outside personal space . Public space is the region within a circle of radius 25 feet but outside social space. What is the area, in square feet, of the shaded region representing a person's social space?
The diagram above represents Edward T. Hall's concept of space surrounding a person de(med by four nonoverlapping regions. Intimate space is the region inside a circle of radius 1 foot. Personal space is the region within a circle of radius 4 feet but outside intimate space. Social space is the region within a circle of radius 12 feet but outside personal space . Public space is the region within a circle of radius 25 feet but outside social space. What is the area, in square feet, of the shaded region representing a person's social space?
Maths-SAT
Maths-
In the x y - plane, line 
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In the x y - plane, line has a slope of 2. If line k is perpendicular to line , which of the following could be an equation of line k?
Maths-SAT
Maths-
In a right triangle, the tangent of one of the two acute angles is 
. What is the tangent of the other acute angle?
In a right triangle, the tangent of one of the two acute angles is . What is the tangent of the other acute angle?
Maths-SAT
Maths-
x - y = 1
x + y = x2 - 3
Which ordered pair is a solution to the system of equations above?
x - y = 1
x + y = x2 - 3
Which ordered pair is a solution to the system of equations above?
Maths-SAT
Maths-
Questions 39 and 40 refer to the following Information
Ryan is comparing five different hay balers (machines that make bales of hay). The bales made are all in the shape of a cylinder, as shown below.
The price of each hay baler and the dimensions of the bales of hay it makes are shown in the table below.
Which of the following is closest to the percent by which the price of hay baler E exceeds the price of hay baler C?
Questions 39 and 40 refer to the following Information
Ryan is comparing five different hay balers (machines that make bales of hay). The bales made are all in the shape of a cylinder, as shown below.
The price of each hay baler and the dimensions of the bales of hay it makes are shown in the table below.
Which of the following is closest to the percent by which the price of hay baler E exceeds the price of hay baler C?
Maths-SAT
Maths-
Questions 33 and 34 refer to the following information
The results of an international survey of contact lens fittings during a given time period are summarized in the table and bar graph above. The table shows the number of total fittings and the mean age, in years, of the patients who were fitted for contact lenses during the time period. The total fittings consisted of new contact lens fittings and re fittings. The bar graph shows the percent of the patients who received new fittings and the percent who received re fittings.
What is the range, in years, of the mean ages of the patients surveyed who had contact Lens fittings in the countries shown?
Questions 33 and 34 refer to the following information
The results of an international survey of contact lens fittings during a given time period are summarized in the table and bar graph above. The table shows the number of total fittings and the mean age, in years, of the patients who were fitted for contact lenses during the time period. The total fittings consisted of new contact lens fittings and re fittings. The bar graph shows the percent of the patients who received new fittings and the percent who received re fittings.
What is the range, in years, of the mean ages of the patients surveyed who had contact Lens fittings in the countries shown?
Maths-SAT
Maths-
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
Which of the following equations could define C as a function of t?
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
Which of the following equations could define C as a function of t?
Maths-SAT
Maths-
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
According to the model, which of the following is closest to the expected age, to the nearest whole year, of a flathead catfish that is 31 inches long?
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
According to the model, which of the following is closest to the expected age, to the nearest whole year, of a flathead catfish that is 31 inches long?
Maths-SAT
