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fomenos
2 years ago
12

R,s and t are the vectors given by 4i+j,3i+2j and 4i +j respectively.find [r+s+t]

Mathematics
1 answer:
luda_lava [24]2 years ago
6 0

Answer:

11i+4j

Step-by-step explanation:

add the i's together and the j's together.

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In Bobby’s school, math grades for the year are calculated from assignments, tests and a final exam. Assignments count 30%, test
jarptica [38.1K]

Answer:

A) Bobby's overall grade is 70.4%

Step-by-step explanation:

To solve this problem we must calculate the percentages each grade represents from the overall grade. Therefore:

assignment = 85*30% = 85*30/100 = 25.5%

tests = 72*20% = 72*20/100 = 14.4%

exam = 61*50% = 61*50/100 = 30.5%

total = assignment + tests  + exam

total = 25.5 + 14.4 + 30.5 = 70.4

Bobby's overall grade is 70.4%. Therefore the correct answer is A).

7 0
3 years ago
Two equations are listed below. Solve each equation and compare the solutions. Choose the statement that is true about both solu
enyata [817]
<span>|5x − 6| = −41  it has no solutions because module ( abs value) cannot be negative

|7x + 13| = 27          -(7x+13)=27
7x+13=27                 -7x-13=27
7x=14                       -7x=40
x=2                            x=-40/7

check:   </span>|7*(-40/7) + 13| = 27  ,   |-40 + 13| = 27,   |-27| = 27 correct<span>
                               
There are no statements, so I cannot choose the correct one</span>
8 0
3 years ago
What is the image of the point -6 and 4 after a rotation of 180 degrees counterclockwise about the origin
alexira [117]

Step-by-step explanation:

6 and -4

5 0
3 years ago
3) Find the values of a,b ,c and for y=x^2-9x+18.
NeX [460]

Answer:

a = 1

b = -9

c = 18

6 0
2 years ago
Question is in the picture please show work
postnew [5]

Answer:

D

Step-by-step explanation:

The m=3/4 when graph

6 0
3 years ago
Read 2 more answers
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