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melisa1 [442]
3 years ago
12

(27x 5 + 9x 4 - 18x 3) 9x 2

Mathematics
1 answer:
iren [92.7K]3 years ago
4 0
54/35 is the answer to this question
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In triangle XYZ, an exterior angle to angle X had measure 100° and an exterior angle to angle Z has measure 120°. Which side of
DaniilM [7]

Answer:

Side YZ is the longest

Step-by-step explanation:

The longest side is across from the largest angle.

Angle X must be 80° because its exterior angle is 100° and they're supplementary. Angle Z is 60° for the same reason. Inside a triangle is always 180°, and since the measures of angle Z and X add up to 140°, so there's 40° left, meaning angle X is the largest.

Angle X is across from size YZ, so that's the longest

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3 years ago
18 is what percent of 40
marshall27 [118]

Answer:

45%

Step-by-step explanation:

Create a fraction with the of " something " on the denominator and multiply by 100% to create the percentage, that is

percent = \frac{18}{40} × 100% = 45%

7 0
3 years ago
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Which equation results from adding the equations in this system? Negative 2 x + y = 8. 5 x minus y = negative 5.
skad [1K]

Answer:

x= 1.75 y= 6.75

Step-by-step explanation:

substitution method

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3 years ago
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Circles in the Coordinate Plane<br> Acellus<br> Complete the equation of this circle:<br> А<br> 1
s344n2d4d5 [400]

Answer:

(x -+2)² + (y - 4)² = 36

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here (h, k ) = (- 2, 4) and r = 6 , then

(x - (- 2))² + (y - 4)² = 6² , that is

(x + 2)² + (y - 4)² = 36 ← equation of circle

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I think its increase
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