What is 27ac-9abc+15acf

Mathematics

1 answer:

Oliga [24]3 years ago

5 0

3ac(9-3b+5f) you got to do factorization

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2d + 3 when d =8 <br> im stuck on this question on a paper due monday!

xeze [42]

Answer:

Step-by-step explanation:

2d + 3

d = 8

2(8) + 3

multiply 2 and 8

16 + 3

add 16 and 3

= 19

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2 years ago

CAN SOMEONE HELP ME PLEASE ASAP!?

belka [17]

Answer:

B. 2

Step-by-step explanation:

1.87

11 x 17 / 100 = 1.87

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2 years ago

X^2+y^2+14x+10y=7 <br> center and radius

Sholpan [36]

$(x-a)^2+(y-b)^2=r^2\\\\(a;\ b)-the\ coordinates\ of\ the\ center\\r-the\ radius\\\\==================================\\Use:(k+l)^2=k^2+2kl+l^2\ (*)\\==================================$

$x^2+y^2+14x+10y=7\\\\x^2+14x+y^2+10y=7\\\\x^2+2x\cdot7+y^2+2y\cdot5=7\\\\\underbrace{x^2+2x\cdot7+7^2}_{Use\ (*)}-7^2+\underbrace{y^2+2y\cdot5+5^2}_{Use\ (*)}-5^2=7\\\\(x+7)^2-49+(y+5)^2-25=7\\\\(x+7)^2+(y+5)^2-74=7\ \ \ \ |add\ 74\ to\both\ sides\\\\(x+7)^2+(y+5)^2=81\\\\(x+7)^2+(y+5)^2=9^2$

$Answer:\\\boxed{(-7;-5)-center;\ 9-radius}$

8 0

3 years ago

Read 2 more answers

Solve for x. *<br> 52°<br> (6x + 2)°

pickupchik [31]

Answer:

x=21

Step-by-step explanation:

The two angles form a straight line so they add to 180

6x+2+52 = 180

6x+54= 180

Subtract 54 from each side