The way you put it is confusing. I'll answer but the way you put it was confusing to me.
Answer:
3
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (2, - 4) , thus
y = a(x - 2)² - 4
To find a substitute (3, - 1 ) into the equation
- 1 = a(3 - 2)² - 4 ( add 4 to both sides )
3 = a
Thus
y = 3(x - 2)2 - 4 ← equation in vertex form
= 3(x² - 4x + 4) + 4
= 3x² - 12x + 12 + 4
= 3x² - 12x + 16 ← equation in standard form
with coefficient of x² term = 3
Answer:
acute angle measure less than 90 degrees, right angle measure 90 degrees, Obtuse angle measure more than 90 degrees, straight angle equal to 180 degrees, reflex angle is an angle greater than 180° and less than 360°, complementary angle either of two angles whose sum is 90°, supplementary angle either of two angles whose sum is 180°
Answer:
x^2 = 10^2 - 9^2
x^2 = 100 -81 = 19
x = 4.3588989435
The triangle sides are 10, 9 and 4.3588989435
Step-by-step explanation:
The population density of the city which is the ratio of population size and the land area is 1419 people per square mile.
- The initial population = 2496435
- The percentage increase in population = 7.9%
<u>The population of the city on 2015 can be calculated thus</u> :
- (1 + percent increase) × initial population
- (1 + 0.079) × 2496435 = 2693653.365 people
<u>The population of a city is calculated using the relation</u> :
- Population density = Population / Land Area
- Population density = 2693653.365/1898
- Population density = 1419.21
Therefore, the population density is 1419 people per square mile.
Learn more: brainly.com/question/18796573
