#1 5x + 4 = 19
-4 -4
______
5x = 15
________
5 5
X = 3
#2. 6m + 1 = -23
-1 -1
________
6 m = -24
__________
6 6
M = 4
#3. 5 + 4d = 37
-5 -5
____________
4d = 32
_______
4 4
D = 8
#4. -7y + 3 = -25
-3 -3
_______
-7y = -28
________
-7 -7
Y =4
#5. 15 + 1/2y = -3
-15 -15
_____________
1/2y = -18
________
1/2 1/2
Y = -36
#6. 7m + 36 = 85
-36 -36
_______
7m = 49
_________
7 7
M = 7
what are the coordinates if you tell me that I can help you
Answer:
-8 °F is 8° below
Step-by-step explanation:
it's negative 8 so its 8 below
Answer:
a = 7 and b = - 18
Step-by-step explanation:
If (x - 1) is a factor of f(x) then x = 1 is a root and f(1) = 0, thus
f(1) = 1³ + 10(1)² + a + b = 0 and
1 + 10 + a + b = 0 ⇒ a + b = - 11 → (1)
Similarly if
(x + 2) is a factor then x = - 2 is a root and f(- 2) = 0
f(- 2) = (- 2)³ + 10(- 2)² - 2a + b = 0, thus
- 8 + 40 - 2a + b = 0 ⇒ - 2a + b = - 32 → (2)
Solve (1) and (2) simultaneously
Subtract (1) from (2)
- 3a = - 21 ( divide both sides by 3)
a = 7
Substitute a = 7 in (1)
7 + b = - 11 ⇒ b = - 11 - 7 = - 18
The required polynomial is
f(x) = x³ + 10x² + 7x - 18
This answer is 135.
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