Build a variable expression for the given phrase.Three less than 21 times a number
A. 3 - 21x
B. 21 - 3x
C. 21x - 3
D. 21(x - 3)
Answer: C
Mathematics
You might also like to view...
In the figure, 
is a right angle. Find the value of sin A (also known as sin 
).
A. 
B. 
C. 
D. 
Mathematics
Use logistic regression to find a logistic model for the following data. x 5 10 15 20 25 y 23.77 65.13 96.24 155.61 180.92?
A. ?
B. 
C. 
D. 
Mathematics
For the given quadratic equation, determine whether the parabola opens up or down, find the vertex of the parabola, and find the axis of symmetry.y = x2 + 8
A. up; (0, -8); x = 0 B. down; (0, 8); y = 8 C. down; (0, -8); x = 0 D. up; (0, 8); x = 0
Mathematics
If the radius of a sphere is multiplied by two, what effect does that have on the surface area? ? The effect is __________-fold __________ (increase, decrease).
What will be an ideal response?
Mathematics