3 years ago

Solve using elimination. 4x − 7y = 19 5x − 7y = 15

Mathematics

1 answer:

Likurg_2 [28]3 years ago

8 0

Answer:

Point Form: (-4, -5)

Equation Form: x = -4, y = -5

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

<u>Brainliest Please!!!!! </u>

<u>- Hermionia</u>

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larisa [96]

Answer:

47.14

Step-by-step explanation:

35*16=556.6 848-556.6=291.4

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2 years ago

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Show work i need help desperately

Anna11 [10]

Here you go hope this helps you.

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3 years ago

Find the domain for the expression <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B%5Csqrt%7Bx%2B3%7D%7D%20%20%20" id="Tex

sashaice [31]

Two rules come into play here:

1) We cannot divide by zero. Thux, x cannot = -3.

2) The domain of the square root function is (0, infinity). This is the dominant limiting factor.

x + 3 must be > 0. Thus, x must be > -3

The domain of this expression is (-3, infinity).

3 0

3 years ago

In the diagram, `stackrel(harr)(PR)` and `stackrel(harr)(AC)` are vertical lines, while `bar(CB)` is a horizontal line segment.

Tomtit [17]

CR:RB = 2:3

CB:CB = 2:5

AQ:AB=2:5

That means we start at A and go 2/5 along the way toward B to get Q:

$Q = (-4,-2) + \frac 2 5(1 - -4, -7 - -2) = (-4,-2) + \frac 2 5(5,-5) = (-4,-2)+(2,-2)=(-2,-4)$

Answer: Q=(-2,-4)

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3 years ago