SAT Math All Topics

​x+y​​=0
3x−2y​​​=10​​
Which of the following ordered pairs (x,y) satisfies the system of equations above (CI)

• (3, -2)
• (2, -2)
• (-2, 2)
• (-2, -2)

Tags

CCSS.HSA.REI.C.9

A landscaping company estimates the price of a job, in dollars, using the expression 60+12nh, where n is the number of landscapers who will be working and h is the total number of hours the job will take using n landscapers. Which of the following is the best interpretation of the number 12 in the expression? (CI)

• The company charges $12 per hour for each landscaper.
• A minimum of 12 landscapers will work on each job.
• The price of every job increases by $12 every hour.
• Each landscaper works 12 hours a day.

Tags

CCSS.HSA-SSE.A.1A

√(​2k^​2​​+17​​​) − x  = 0
If k > 0, and x = 7 in the equation above, what is the value of k? (CI)

• 2
• 3
• 4
• 5

Tags

CCSS.HSA.REI.A.2

Which of the following equations has a graph in the x,y-plane for which y is always greater than or equal to -1? (CI)

• y = ∣x∣−2
• y = x​^2​​ − 2
• y = (x - 2)²
• y = x³ - 2

Tags

CCSS.HSA.REI.D.12

What is the sum of all values of m that satisfy 2m²-16m+8=0 ? (CI)

• -8
• -4√3
• 4√3
• 8

Tags

CCSS.HSA-REI.B.4B

A radioactive substance decays at an annual rate of 13 percent. If the initial amount of the substance is 325 grams, which of the following functions f models the remaining amount of the substance, in grams, t years later? (CI)

• f(t)=325(0.87)^​t​​
• f(t)=325(0.13)^​t​​
• f(t)=0.87(325)​^t​​
• f(t)=0.13(325)^​t​​

Tags

CCSS.HSF.LE.A.2

2x(3x+5)+3(3x+5)=ax​^2​​+bx+c

In the equation above, a, b, and c are constants. If the equation is true for all values of x, what is the value of b? (CI)

• 5
• 6
• 13
• 19

Tags

CCSS.6.EE.A.4

Segment  AE is parallel to segment CD and segment AD interesects segment CE. What is the length of segment CE? (CI)

• 4
• 6
• 8
• 12

Tags

CCSS.HSG.CO.C.10

ℓ=24+3.5m
One end of a spring is attached to a ceiling. When an object of mass m kilograms is attached to the other end of the spring, the spring stretches to a length of ℓ centimeters as shown in the equation above. What is m when ℓ is 73?

• 14
• 27.7
• 73
• 279.5

Tags

CCSS.HSA.REI.B.3

A quality control manager at a factory selects 7 lightbulbs at random for inspection out of every 400 lightbulbs produced. At this rate, how many lightbulbs will be inspected if the factory produces 20,000 lightbulbs?

• 200
• 350
• 400
• 450

Tags

CCSS.6.RP.A.3B