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2 years ago

use the elimination method to solve the system of equations. choose the correct ordered pair x-y=2 2x+3y=14

Mathematics

1 answer:

Salsk061 [2.6K]2 years ago

3 0

Solve using the p method

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-0.6 into a fraction

Akimi4 [234]

The fraction would be - 3/5

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2 years ago

HEEEEELLLPPPP!!! I really need this to be answered im soo confused!!

Marysya12 [62]

Answer:

Step-by-step explanation:

∠ AFD = ∠ AFC + ∠ CFD

Given ∠ CFA = 90° and

∠ CFD = 90° - ∠ EFD, that is

∠ CFD = 90° - 62° = 28°, thus

∠ AFD = 90° + 28° = 118° → C

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2 years ago

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(x+4) (x+7) find product

nataly862011 [7]

Answer:

x2+11x+28

Step-by-step explanation:

Thus, (x+7)(x+4) multiplies out to x2+4x+7x+28, which can be simplified to

x2+11x+28

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3 years ago

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a munfuctor of medical supplies produces 1 liter of bags of saline solution. the cost to produce x thousand bags of saline is gi

o-na [289]

A manufacturer of medical supplies produces 1 liter bags of saline solution. thecost to produce x thousand bags of saline is given by the cost func. ... thousand bags of saline isgiven by the cost function C(x)=1.7x^2-5.3x+3.2, ...

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2 years ago

Answer correct you get brainliest answer

zloy xaker [14]

Answer:

$y = {x}^{2} - 2$

Or if you want with the value of h too.

$y = {(x - 0)}^{2} - 2$

Step-by-step explanation:

$y = a {(x - h)}^{2} + k$

Find the value of h and k by using the formula.

$h = - \frac{b}{2a} \\ k = \frac{4ac - {b}^{2} }{4a}$

From y = x²-2

$a = 1 \\ b = 0 \\ c = - 2$

Substitute these values in the formula.

$h = - \frac{0}{2(1)} \\ h = 0$

Therefore, h = 0.

$k = \frac{4(1)( - 2) - {0}^{2} }{4(1)} \\ k = \frac{ - 8}{4} \\ k = - 2$

Therefore, k = - 2.

From the vertex form, the vertex is at (h, k) = (0,-2). Substitute h = 0, a = 1 and k = -2 in the equation.

$y = a {(x - h)}^{2} + k \\ y = 1 {(x - 0)}^{2} - 2 \\ y = {(x)}^{2} - 2 \\ y = {x}^{2} - 2$

These type of equation where b = 0 can also be both standard and vertex form.

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2 years ago