Answer:
4,5,6,7
Step-by-step explanation:
-1 < x ≤7 , x > 3 means that 3 < x ≤ 7
Answer:
f(x) =4x² + x - 7
Step-by-step explanation:
f(x) = ax² + bx + c
f(1) = a + b + c
f(-3) = 9a - 3b + c
f(3) = 9a + 3b + c
a + b + c = -2 -----(1)
c = -2-a-b -----(2)
9a - 3b + c = 26 ------(3)
9a + 3b + c = 32 -------(4)
(2)->(3)
9a-3b-2-a-b = 26
8a-4b = 28
4(2a-b) = 28
2a-b = 7 ----(5)
(2)->(4)
9a+3b-2-a-b = 32
8a+2b = 34
2(4a+b) = 34
4a+b = 17 ----(6)
(5)+(6)
6a = 24
a = 4
sub a=4 into(6)
4(4)+b = 17
b = 1
sub a=4,b=1 into (2)
c = -2-4-1
c = -7
Known :
r = 5 cm
θ = 360° - 90° = 270°
Asked :
Arc length of the partial circle = ...?
Answer :
Arc length
So, the arc length of the partial circle is 23,55 cm
<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>
Answer:
4 feet
Step-by-step explanation:
that's the right answer
We just have to find the closest number that can be multiplied by 32 and still be under 300. Do this by following this step:
Divide by 32 on both sides.
x < 9.375
We can't buy 9.375 sweatshirts though, and we can't add more decimals or it will go over 300, so you round down to 9.
Dominique can buy 9 sweatshirts without going over $300!
