Answer:
f(- 7) = - 57
Step-by-step explanation:
To evaluate f(- 7) substitute x = - 7 into f(x) = 7x - 8, since condition is
f(x) = 7x - 8 for x ≥ - 7, thus
f(- 7) = 7(- 7) - 8 = - 49 - 8 = - 57
-11x² + 2x = 10
-11x² + 2x - 10 = 10 - 10
-11x² + 2x - 10 = 0
x = <u>-(2) +/- √((2)² - 4(-11)(-10))</u>
2(-11)
x = <u>-2 +/- √(4 - 440)</u>
-22
x = <u>-2 +/- √(-436)
</u> -22<u>
</u>x = <u>-2 +/- 2i√(109)
</u> -22
x = <u>-2 + 2i√(109</u>) x = <u>-2 - 2i√(109)</u>
-22 -22
x = ¹/₁₁ - ¹/₁₁i√(109) x = ¹/₁₁ + ¹/₁₁i√(109)
<u />
<span>c.753.6 square feet woud be the answer</span>
The equation to find the area of a triangle is 1/2bh or 1/2 base*height.
Let’s just insert the known values.
The triangle has a base of 14 and a height of 8.2, so our equation would look like:
1/2(14)(8.2)
Now solve.
7*8.2
57.4
The triangle has an area of 57.4 mm.
Hope this helps!
Answer:
yes
Step-by-step explanation:
if you do one good thing for someone eles they would want other people to feel the same way
