−90−60wminus, 90, minus, 60, w?

Mathematics

1 answer:

Lisa [10]3 years ago

7 0

Answer:

Step-by-step explanation:

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Find the solution of this system of equations. Separate the x- and y-values with a comma. x - 2y = -23 and x - y = 7

snow_lady [41]

Solve the following system using elimination:
{x - 2 y = -23 | (equation 1)
{x - y = 7 | (equation 2)

Subtract equation 1 from equation 2:
{x - 2 y = -23 | (equation 1)
{0 x+y = 30 | (equation 2)

Add 2 × (equation 2) to equation 1:
{x+0 y = 37 | (equation 1)
{0 x+y = 30 | (equation 2)
Collect results:
Answer: {x = 37 , y = 30

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3 years ago

Match the expressions with their resultant terms in exponential form

jasenka [17]

The First expression is 13 to the 1st power. the second expression is 13 to the -22nd power. third expression is 13 to the 15th power fourth expression is 13 to the 7th power.

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3 years ago

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If the graph of the following parabola is shifted four units right and three units down, what is the resulting equation in verte

AURORKA [14]

ANSWER

The resulting parabola in vertex form is:

$(x - 4) = 4( {y + 3)}^{2}$

EXPLANATION

The original equation of the parabola is given as

$x = 4 {y}^{2}$

This parabola has its vertex at the origin.

If the graph of this parabola is shifted four units right and three units down, then the new equation is:

$(x - 4) = 4( {y + 3)}^{2}$

This the equation of the transformed parabola.

Its vertex is now at (4,-3).

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4 years ago

Find the value of xin the triangle shown below

creativ13 [48]

Answer:

$x=80^{\circ}$

Step-by-step explanation:

<u>Solution 1:</u>

Recall that in an isosceles triangle, the two angles adjacent to the congruent sides are equal. Since the sum of interior angles in a triangle add up to $180^{\circ}$ , we set up the following equation: