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butalik [34]
3 years ago
12

Please help asap. 50 pts

Mathematics
1 answer:
Mariulka [41]3 years ago
4 0
36y^2-84y-147=3(12y^2-28y-49)=3(12y^2-42y+14y-49)\\\\=3[6y(2y-7)+7(2y-7)]=3(2y-7)(6y+7)
\boxed{Answer:\ B.\ 3(2y-7)(6y+7)}

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Please help I'm so confused
Inessa [10]
Just look up the name of your worksheet then after the name type in answer key. If that doesn't work just download or search google "desmos calculator" and type in your points. (if you're on a IOS/ a phone or iPad then download the app. if you on a computer or something of that nature then teach it on google)

4 0
2 years ago
the amount of lemonade at the beginning of the party was 45 quart. At the end of the party there was 8 quarts left. What was his
motikmotik

His percentage of change in the amount of quarts is 82.22%.

Initial amount of lemonade = 45 quart

End amount of lemonade = 8 quart

Change in amount = 45 - 8

                               = 36

Percent = \frac{change in value}{initial value}*100

             = \frac{37}{45}*100

             = 0.8222 * 100

             = 82.22%

Hence, his percentage of change is 82.22%.

To learn more about percentage here:

brainly.com/question/28269290

#SPJ1

8 0
1 year ago
The equation of line a is y=−14x+3. If line b runs perpendicular to line a and passes through (2, 6), what would be the equation
AysviL [449]

Hint : The product of the slopes of two lines perpendicular to each other is - 1 .

______________________________

In slope-intercept ( y = ax + b ) from of the linear equations the coefficient of x is the slope of the line.

Thus :

Slope of line a = - 14

______________________________

Suppose that the slope of line b is x according to the Hint we have :

- 14 × x = - 1

negatives simplify

14x = 1

Divide both side by 14

14x ÷ 14 = 1 ÷ 14

x = 1/14

So the slope of line b is 1/14

_____________________________

Now let's find the equation of line b by point-slope formula using the point question have us ( 2 , 6 ) :

y - y( given point ) = Slope × ( x - x ( g p ) )

y - 6 = 1/14 × ( x - 2 )

y - 6 = 1/14 x - 2/14

y - 6 = 1/14 x - 1/7

Add both sides 6

y - 6 + 6 = 1/14 x - 1/7 + 6

y = 1/14 x - 1/7 + 42/7

y = 1/14 x + 41/7

And we're done ...

6 0
2 years ago
What is the surface area of a sphere with a radius of 3m
Bas_tet [7]
The area is 113.1m If you want to double check go on google and look up surface area of a sphere. A calculator will come up. Hope this helped.
4 0
3 years ago
Find the value of x. A. 80 B. 110 C. 100 D. 40
KonstantinChe [14]

Answer:

110 degrees

Step-by-step explanation:

to find the angle x, we need to use the formula to find the 50 degree angle:

(y - x) / 2 = 50

y is 210

(210 - x) /2 = 50

210-x = 100

x = 110 degrees

3 0
2 years ago
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