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:
6.3294✖️10^7
Step-by-step explanation:
To find the statdard form, you place the decimal after the largest unit, int his case 6.
Then you write down all the numbers except for "0".
This becomes:
6.3294
Then, you add the multiplying sign, and count how many digits are there after 6, and in this case, there are 7, so you add the power "7" after 10.
6.3294✖️10^7
Hope this helped!
Have a nice day:)
Answer:
78
Step-by-step explanation:
angle ACD + angle DCB = 180 (Angles on straight line)
4x + 2 + 3x + 3 = 180
7x + 5 = 180
7x = 180-5
7x = 175
x = 175 / 7
x = 25
angle DCB = 3x +3 = 3*25 + 3 = 75 +3 = 78
Don’t you have to flip the sign when you divide by a negative? So I think she’s wrong bc the answer should be d is less than or equal to 7.5
