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vivado [14]
3 years ago
5

What is the solution to the following system of equations? 3x-4y=-35 3x+4y=5

Mathematics
2 answers:
Masteriza [31]3 years ago
8 0

Answer:

Option A in Ed

Step-by-step explanation:

Nastasia [14]3 years ago
3 0
3x-4y = -35 (1)
3x+4y = 5 (2)
Add equation (1) and (2)
6 x = -30
x = -30/6 = -5
Substitute at equation (2)
3 * -5 + 4y =5
4y = 5+15 = 20
y = 20/4 = 5

The solution of the system:
x = -5 and y = 5
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The distance d of a particle moving in a straight line is given by d(t) = 2t^3 + 5t – 2, where t is given in seconds and d is me
Amanda [17]

Answer: 299 m/s

Step-by-step explanation:

The first step is to take the first derivative of the equation given. This will give us the equation for velocity which we will then substitute the 7 in for t.

To derive the equation you multiply the coefficient by the power of the variable, then subtract one from the variable.

v(t) = 6t^2 + 5

Now input 7 in for t to find the velocity.

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6 0
3 years ago
-4(2x + 4) > 8x + 64
romanna [79]

Hello there I hope you are having a great day :)

Your Question, -4(2x + 4) > 8x + 64 Solve for X

1) Expand -8x-16>8x+64

2) Add 16 to both sides -8x-16+16>8x+64+16

3) Simplify -8x>8x+80

4) Subtract 8x from both sides -8x-8x>8x+80-8x

5) Simplify -16x>80

6) Multiply both sides -1 (Reverse the inequality) (-16x) (-1) >80 (-1)

7) Simplify 16x<-80

8) divide both sides by 16   16x/16 <  -80/16

9) Simplify x < -5  

This should be your answer x < -5

Hopefully that helps you :)

5 0
2 years ago
Read 2 more answers
PLEASE HELP!! THANKS!!
Xelga [282]
A) x • 3 + 4 = 22
b) 22-4= 18
so since 18 is left, what times 3 = 18? thats 6. so
6 x 3 + 4 = 22
we can check.
18 + 4 = 22
it equals 22 so thats your answer. x = 6. hopes this helps
7 0
3 years ago
Which of the following irrational numbers will result in a rational number when squared? Put a check mark next to all correct an
Anastaziya [24]

Answer:

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Step-by-step explanation:

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2 years ago
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AysviL [449]

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