Answer:
b =
Step-by-step explanation:
Using the discriminant for nature of roots ( x- intercepts )
If b² - 4ac = 0 then roots are real and equal ( that is only 1 x- intercept )
Given
f(x) = x² - 2bx + b² + 2b - 1
with a = 1, b = - 2b and c = b² + 2b - 1, then
(- 2b)² - 4(b² + 2b - 1) = 0 ← distribute and simplify left side
4b² - 4b² - 8b + 4 = 0
- 8b + 4 = 0 ( subtract 4 from both sides )
- 8b = - 4 ( divide both sides by - 8 )
b =
Answer: 58.667 fps
Step-by-step explanation: Have a brilliant day of learning!-Lily ^-^
The surface area of the globetrotters must work with is 283.4 square inches
<h3>The surface area of the sphere</h3>
The formula for calculating the surface area of a sphere is expressed as:
S = 4πr²
where r is the radius of the sphere
Given that
d = 9.5in
r = 4.75in
Substitute the given parameters into the formula
S = 4π(4.75)²
S = 283.385 square inches
The surface area of the globetrotters must work with is 283.4 square inches
Learn more on the surface area of the sphere here: brainly.com/question/1293273
Answer:
Subtraction is the Addition of the opposite of the subtrahend to the minuend.
Step-by-step explanation:
PLS GIVE BRAINLIEST