Answer:
B. <2,-5>
Step-by-step explanation:
We are given the vectors,
u = <-2,0> and v = <4,-5>
It is required to find the sum of the vectors i.e. u + v.
So, we have,
u + v = <-2,0> + <4,-5>
i.e. u + v = < -2+4 , 0-5 >
i.e. u + v = <2,-5>
Thus, the sum of the vectors written as ordered pairs is <2,-5>.
Hence, option B is correct.
Answer:
C
Step-by-step explanation:
Taking the equation for this we can see that A is using 8 to multiply. 8% = 0.08. But since the percent is increases it would be 1.08. So we can see that it cant be A, this applys for B as well. For D it says 1.8 which is close but that would be 80% not 8%. So now we can see that C is the answer.
Xy = -150
x + y = 5
x + y = 5
x - x + y = -x + 5
y = -x + 5
xy = -150
x(-x + 5) = -150
x(-x) + x(5) = -150
-x² + 5x = -150
-x² + 5x + 150 = 0
-1(x²) - 1(-5x) - 1(-150) = 0
-1(x² - 5x - 150) = 0
-1 -1
x² - 5x - 150 = 0
x = -(-5) ± √((-5)² - 4(1)(-150))
2(1)
x = 5 ± √(25 + 600)
2
x = 5 ± √(625)
2
x = 5 ± 25
2
x = 2.5 ± 12.5
x = 2.5 + 12.5 or x = 2.5 - 12.5
x = 15 or x = -10
x + y = 5
15 + y = 5
- 15 - 15
y = -10
(x, y) = (15, -10)
or
x + y = 5
-10 + y = 5
+ 10 + 10
y = 15
(x, y) = (-10, 15)
The two numbers that add up to 5 and multiply to -150 are 15 and -10.
Answer:
<em>The combined average of Altuve's weighted averages is 1 for 2 or 1/2</em>
Step-by-step explanation:
<u>Combined Average</u>
On Friday, Altuve had 3 out of 5 successes
On Saturday, Altuve had 2 out of 4 successes
On Friday, Altuve had 1 out of 3 successes
The total successes are 3+2+1=6
The total tries are 5+4+3=12
The combined average is:
Simplifying:
The combined average of Altuve's weighted averages is 1 for 2 or 1/2
Answer:
C 6.475
Step-by-step explanation:
Hope that helps
have a good day
can I have brain pls
