Mathematics, 24.06.2020 16:01, cwsmith8026
1. A binary operation * is defined on the set R, of real numbers by a * b = ab/4. Find the value of root 2 * root 6.
a. root 3
b.3 root 2/4
c. root 3/ 2
d. root 2 / 2
2. two functions f and g are defined by f(x) = 3x - 1 and g(x) = 2x^3, evaluate fg(-2)
a. -49
b. -47
c. -10
d. -9
3. Express the force, F = ( 8N, 150) in the form ( a i + bj) where a and b are constants
a. (-4 root 3)i + 4 j
b. (2 root 3)i - 3 j
c. i - 4j
d. 2i - j
4. In a class of 50 students, 35 like science and 30 like History. what is the probability of selecting a student who likes both science and History
a. 0.10
b. 0.30
c. 0.60
d. 0.70
5. What is the value of r if the distance between the points ( 4, 2) and (1, r) is 3 units
a. 1
b. 2
c. 3
d. 4
Answers: 1
Mathematics, 21.06.2019 17:00, cat216
Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.
Answers: 2
Mathematics, 21.06.2019 18:00, hannahchristine457
Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.
Answers: 3
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