Use the distibutive property to simplify expression 27-9x+15y

Mathematics

1 answer:

IrinaVladis [17]3 years ago

6 0

Answer:

3(9-3x+5y)

Step-by-step explanation:

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The crowd at a music concert is estimated to be 14,000 people. The exact attendance is 10,528 people. What is the percent error?

Dmitriy789 [7]

Answer:

32.9%

Step-by-step explanation:

14,000-10,528=3,472

3,472/10,528=0.32978723

Idk what your supposed to round to, but I put 32.9%

6 0

3 years ago

A) 5 11 + 4 3 add the following rational number

mel-nik [20]

Step-by-step explanation:

the question is not correct

edit it and I will answer u in comments

5 0

2 years ago

What is the focus of the parabola? y=−14x2−2x−2

nataly862011 [7]

First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
Using completing the square method:

y = -14x² - 2x - 2
y = -14(x² + 2x/14) - 2
y = -14(x² + 2x/14 + (2/28)²) -2 + (2/28)²
y = -14(x + 1/14)² - 391/196
-1/14(y + 391/196) = (x + 1/14)²

This is a vertical parabola and its focus (h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

Or (-0.071,-1.977).

3 0

3 years ago

Acellus

shtirl [24]

Answer:

(-2, 3)

Step-by-step explanation:

Think of this in the future:

Counter-clockwise rotations:

90-degree --> (x,y) = (-y,x) ex. (3,2) --> (-2,3)

180-degree --> (x,y) = (-x,-y) ex. (3,2) --> (-3, -2)

270 degree --> (x,y) = (y,-x) ex. (3,2) --> (2, -3)