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2 years ago

Please help me out with these questions! Brainliest + 50 Points

Mathematics

2 answers:

11Alexandr11 [23.1K]2 years ago

8 0

Step-by-step explanation:

1) B

2) A

3) C

4) C

yeahhh that's about right

sveticcg [70]2 years ago

4 0

Answer:

1) B

2) B

3) C

4) D

5) A (I think )

Step-by-step explanation:

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Solve for b. -11b+7 = 40−11b+7=40

Oksana_A [137]

Answer:

This equation is false

Step-by-step explanation:

Well,

-11b + 7 = 4 - 11b + 7 = 40

combine like terms

-11b + 7 = -11b + 3 = 40

Communicative property

-3 to both sides

-11b + 4 = -11b = 40

-4 to both sides

-11b = -11b = 36

+11b to both sides

0 = 36

0 is not equal to 36 meaning that this equation is false.

Thus,

the equation given is false.

Hope this helps :)

6 0

2 years ago

I'm very confused on how to even figure out the question and what I'm supposed to do

Tasya [4]

Answer:

To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect. The two lines intersect in (-3, -4) which is the solution to this system of equations. I hope this helped!

5 0

1 year ago

A particle moves so that r(t) = ati + b sin atj. Show that the magnitude of the acceleration of the particle is proportional to

ValentinkaMS [17]

Answer:

Step-by-step explanation:

Given

Position of particle is $r(t)=at\hat{i}+b\sin (at)\hat{j}$