Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
The range would be [8, 3]
In order to find the range, simply plug each end of the domain into the equation.
f(x) = -x + 5
f(-3) = -(-3) + 5
f(-3) = 3 + 5
f(-3) = 8
Then the other side
f(x) = -x + 5
f(2) = -2 + 5
f(2) = 3
Answer: 18-3
Step-by-step explanation:
Answer:
What percent of the large square is shaded? The grid is divided into 10 rectangles. For percents, you need to look at 100 equal-sized parts of the whole
Step-by-step explanation:
First off, let's convert 0.25 to a fraction, notice, it has two decimals, therefore, we'll use two zeros on the denominator, two decimals, two zeros, thus,