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2 years ago

HELP PLS!!! BRAINLIEST WILL BE GIVEN

Mathematics

1 answer:

artcher [175]2 years ago

4 0

It’s B. Hope it hopes

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-7x + 7 ≤ -56 in a word poblem

Gelneren [198K]

Answer:

x $\geq$ 9

Step-by-step explanation:

-7x $\leq$ - 63

7x $\geq$ 63

x $\geq$ 9

Tell me if I am wrong.

Can I get brainliest.

6 0

3 years ago

The system of equations shown below is graphed on a coordinate grid:

salantis [7]

3y+x=4

2y-x=6

Solve x+3y=4 for x

Add -3y to both sides

x+3y-3y=4-3y

x=-3y+4

Substitute -3y+4 for x in -x+2y=6

-x+2y=6

-(-3y+4)+2y=6

Simplify both sides of the equation

5y-4=6

Add 4 to both sides

5y-4+4=6+4

5y=10

Divide both sides by 5

5y/5=10/5

y=2

Substitute 2 for y in x=-3y+4

x=-3y+4

x=(-3)(2)+4

x= -6+4

x= -2

Answer : x=-2 and y=2

The answer is A

it is (-2,2) and lies on both lines

I hope that's help !

6 0

3 years ago

PLEASE HELP QUICK!!!

Brilliant_brown [7]

Answer:

Step-by-step explanation:

I am not sure

5 0

2 years ago

Find the second derivative at the point (2,2), given the function below. 2x^4=4y^3

Bogdan [553]

The second derivative at the point (2,2) is 34/9

<u>Explanation:</u>

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2x⁴ = 4y³

2x⁴ - 4y³ = 0

We first need to find dy/dx and then d²y/dx²

On differentiating the equation in terms of x

dy/dx = d(2x⁴ - 4y³) / dx

We get,

dy/dx = 2x³/3y²

On differentiating dy/dx we get,

d²y/dx² = 2x²/y² + 8x⁶/9y⁵

$\frac{d^2y}{dx^2} = \frac{2 X 2^2}{2^2} + \frac{8 X 2^6}{9 X 2^5}\\ \\\frac{d^2y}{dx^2} = 2 + \frac{16}{9}\\ \\$

d²y/dx² = 34/9

Therefore, the second derivative at the point (2,2) is 34/9

7 0

2 years ago

Seth’s bank charges $5 a month to maintain a checking account and $0.50 for each check Seth writes. last month, Seth paid a tota

avanturin [10]

Answer:

C) 3

Step-by-step explanation:

Because she paid 6.50, you subtract that by 5 and it will get you 1.50 and then you divide that by .50 and it gets you your answer.

4 0

1 year ago

HELP PLS!!! BRAINLIEST WILL BE GIVEN​

HELP PLS!!! BRAINLIEST WILL BE GIVEN