2 years ago

ASAP HELP!! sorry the photo is bad it’s the lighting but please help

Mathematics

1 answer:

ICE Princess25 [194]2 years ago

8 0

Answer:

Step-by-step explanation:

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Y = – 3

KonstantinChe [14]

The best approximation for the solution to this system of equations is (-2.2,-3)

Option C is correct.

Step-by-step explanation:

Solving the system of equations to get the exact value of x:

$y = -3\\y = x-0.8$

Let

$y = -3\,\,eq(1)\\y = x-0.8\,\,eq(2)$

Putting value of y from eq(1) into eq(2)

$-3=x-0.8$

$x=-3+0.8$

$x=-2.2$

So, Value of x is -2.2

The best approximation for the solution to this system of equations is:

x=-2.2 and y = -3

(-2.2,-3)

Option C is correct.

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

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Exactly how many days is 72 hours?

jasenka [17]

72 hours is exactly 3 days...

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A rectangular playground is 888 meters wide. It is 333 times as long as it is wide.What is the area of the playground?

rjkz [21]

888×333= 295704 which is your length and the next step is to multiply your length times your width which would be 295704×333=262585152. So your FINAL ANSWER IS 262585152 METERS SQUARED

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Given f(x) = x^3-3 , find f(-2).<br> Show work please

Tasya [4]

(-2)×3-3=-9
f(x) = -9

8 0

2 years ago

What is the rate of change of the perimeter of the square at the instant the area is 49 m2?

vagabundo [1.1K]

Let x = the length of a side of the square (m).
The area is
A = x²
The perimeter is
P = 4x

The rate of change of P with respect to x is
P'(x) = 4 (independent of x)

When A = 49 m², then x = 7 m.
The rate of P is 4.

Answer: 4

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2 years ago