Answer:
the two numbers are -1 and 4
Step-by-step explanation:
set each number to some variable, I'll use x and y
given what we know, we know that
x*y = -4
x+y = 3
through algebraic manipulation, x= 3-y
(3-y)*y = -4
3y-y^2 = -4
, now factor
(y-1)(-y+4) = 0
y = 1, 4
if y = 1:
x+1 = 3
x = 2
BUT 2 * 1 does not equal -4, so therefore 2 and 1 cannot be the solution
testing x = 4
x+4 = 3
x = -1
-1 * 4 = - 4
the two numbers are -1 and 4
Answer:
simple interest= 5100
using formula SI=<u> </u><u>PTR</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>100
hope it helps..
Answer:
- Elanor's standardized score is 1.19
- Gerald's standardized score is 0.72
- Elanor has higher score
Step-by-step explanation:
To compare Elanor's and Gerald's math scores, we need to standardize them and calculate their z-scores.
z score can be calculated using the formula
z= where
- M is the mean score of the exam
- s is the standard deviation of the exam
Elanor's standardized score is:
z(e) = ≈ 1.19
Gerald's standardized score is:
z(g)= ≈ 0.72
Since z(e) > z(g), Elanor has higher score
Answer:
i have no idea , try a calculator online for this subject.
Step-by-step explanation:
Answer:
1/49
Step-by-step explanation: