First you plug everything in to get
2a=-5 (1)^2+9 you do the powers and multiply
2a=-5 (1)+9
2a=-5+9
2a=4
a=2
Answer:
<em>- point-slope form</em>
<em>- function notation</em>
Step-by-step explanation:
The point-slope form of an equation of a line:
<em>m</em><em> - slope</em>
The formula of a slope:
From the graph we have the points (-2, -1) and (1, 0).
Substitute:
<em>- point-slope form</em>
<em>use the distributive property</em>
<em>subtract 1 = 3/3 from both sides</em>
The circumference of a circle is found by multiplying the diameter by pi, so Martel needs roughly 150.72 centimeters of cloth.
The answer is <span>Difference of Cubes.
Difference of cubes is </span>a³ - b³.<span>
27 can be written as 3</span>³ (= 3 × 3 × 3 = 27). So, a = 3.
8 can be written as 2³ (= 2 × 2 × 2 = 8). So, b = 2.
Difference of cubes can be expressed as:
a³ - b³ = (a - b)(a² + ab + b²)
⇒ 3³ - 2³ = (3 - 2)(3² + 3×2 + 2²) = 1 × (9 + 6 + 4) = 1 × 19 = 19
⇒ 27 - 8 = 19
