2,685 Answered Questions for the topic SAT math
04/23/21
precalculus im lost
An exponential function f ( x ) = a ⋅ b x passes through the points (0, 2000) and (2, 980). What are the values of a and b ? a = and b =
04/23/21
ive tried but i dont know what to do precalculus hw
An exponential function f(x)=a⋅bx passes through the points (0, 4) and (2, 36). What are the values of a and b? a = and b =
04/23/21
this is due soon help! precalculus subject
A vehicle purchased for $25,000 depreciates at a constant rate of 8%. Determine the approximate value of the vehicle 14 years after purchase. Round to the nearest whole dollar.
04/23/21
Im very much confused on how to start precalculus
The fox population in a certain region has an annual growth rate of 9 percent per year. It is estimated that the population in the year 2000 was 25700.(a) Find a function that models the...
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04/22/21
ive tried starting this but i got lost its precalculus
Find the inverse function of f(x)=11+3^√x f^-1(x)=
URGENT MATH NEED A EXPERT
URGENT MATH NEED AN EXPERTDRACULA IS Getting ready for his birthday party, - AND HE WANTS TO SERVE SOME OF HIS FAMOUS ‘MONSTER MIX’ - BUT THERE IS A PROBLEM: HE ISN’T SURE WHAT SUPPLIES TO BUY....
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URGENT MATH NEED A EXPERT
URGENT MATH NEED AN EXPERTDRACULA IS Getting ready for his birthday party, - AND HE WANTS TO SERVE SOME OF HIS FAMOUS ‘MONSTER MIX’ - BUT THERE IS A PROBLEM: HE ISN’T SURE WHAT SUPPLIES TO BUY....
more
04/21/21
URGENT MATH NEED AN EXPERT
DRACULA IS Getting ready for his birthday party, - AND HE WANTS TO SERVE SOME OF HIS FAMOUS ‘MONSTER MIX’ - BUT THERE IS A PROBLEM: HE ISN’T SURE WHAT SUPPLIES TO BUY. BUYING TOO MUCH WILL MAKE...
more
Show that the given functions are orthogonal on the indicated interval.
F1(x)=x , F2(x)=cos2x ,[-pi/2,pi/2]
04/18/21
Solutions of an inequality
With what value of a the solutions of the inequality are all real numbers?1. 0.2^x+3 > a-22. (1/5)^x+3 > a^2-9a
You want to purchase a new car in 3 years and expect the car to cost $30,000
You want to purchase a new car in 3 years and expect the car to cost $30,000. Your bank offers a savings plan with a guaranteed APR of 5.5% if you make regular monthly deposits. How much should you...
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04/18/21
statistic question
According to an independent insurance agent, the following is a breakdown of the amount of life insurance purchased by males in the following age groups. The agent is interested in whether the age...
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04/17/21
Write the system of linear equations represented by the augmented matrix. (Use the variables x, y, z, and w, if applicable.)
7 -5 -148 3 -16= ________ ________
State the elementary row operations applied to the first augmented matrix A to transform it to its row-equivalent matrix B.
A =
1
−2
7
6
4
1
B =
1
−2
7
0
16
−41
A: 2R2 + R1B: 5R2 - 15R1C: (-6)R1 + R2D: Interchange R1 and R2E: None of these
What is the center and radius of the circle represented by the equation (x – 9)2 + (y + 2)2 = 4?
A.center: (–9, 2), radius: 4B. center: (–9, 2), radius: 16C. center: (9, –2), radius: 4D. center: (9, –2), radius: 2
The vertices of GHJK are G(–1, 0), H(1, 6), J(5, 6), and K(5, 2). What is the most precise classification of GHJK?
A.quadrilateralB.trapezoidC.parallelogramD.kite
04/16/21
Which statement is true? Select all that apply.
Which statement is true? Select all that apply.A. AB=CDB. AB=BCC. AD=BC+2aD. 𝐴𝐵^- ll CD^-E. AD^- ll BC^-(^- means the letters have a line above them)
04/16/21
Rays HG and HJ are tangent to ⊙Q. What is 𝑚𝐺𝐾𝐽⏜ ?
Rays HG and HJ are tangent to ⊙Q. What is 𝑚𝐺𝐾𝐽⏜ ? = ˚
04/16/21
What are the coordinates of the vertices of D(3, A) (△ABC) for A(0, 4), B(–2, 5), and C(3, 7)?
A.)A′(0, 12), B′(−6, 15), C′(9, 21)B.)A′(0, 15), B′(−6, 18), C′(9, 24)C.)A′(0, 9), B′(−6, 12), C′(9, 18)D.)A′(0, 4), B′(−6, 7), C′(9, 13)
According to one study, the average monthly cell phone bill in the U.S. is $70.
According to one study, the average monthly cell phone bill in the U.S. is $70. If a 20-year old student with an average bill gives up her cell phone and each month invests the $70 she would have...
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04/16/21
You currently drive 300 miles per week in a car that gets 15 miles per gallon of gas.
You currently drive 300 miles per week in a car that gets 15 miles per gallon of gas. You are considering buying a new fuel-efficient car for $12,000 (after the trade-in allowance on your current...
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What would be the expected difference in height between a child 25 months of age and a child 16 months of age?
The average height of a boy in the United States, from birth through 60 months, can be modeled by y=2.9√x+20.1 where y is the average height, in inches, of boys who are x months of age. What...
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