Answer:
A
Step-by-step explanation:
Given
x² - 5x - 14 = 0
Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)
The factors are - 7 and + 2, since
- 7 × 2 = - 14 and - 7 + 2 = - 5, thus
(x - 7)(x + 2) = 0
Equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x + 2 = 0 ⇒ x = - 2
Answer:
1
Step-by-step explanation:
-2m+9=7
-2m=7-9
-2m=-2
m=-2/-2
m=1
-2*1+9=7
-2+9=7
(9-2=7)
m=1
Answer:
0
Step-by-step explanation:
If you read 4.8 out loud it should be "four and eight tenths." This is always a good start when changing a decimal into a fraction. 4 8/10 is a mixed number, so to further simplify it as a mixed number we leave the 4 alone and reduce the fraction 8/10. So we can reduce 8/10 to 4/5. Then you bring the 4 back and put 4/5 with it. So 4.8 as a fraction is 4 4/5.
I hope that helped!
Answer:
1/10 units^3
Step-by-step explanation:
V=(Area of base)(height)
= 3/20 times 2/3
= 6/60
(simplified)= 1/10