3 years ago

What is the sum of the expression below? (9c-8d)+(2c-6)+(-d+3)

Mathematics

2 answers:

Dmitrij [34]3 years ago

7 0

Answer: The answer would be 11c-9d-3

Hope this helped

777dan777 [17]3 years ago

5 0

Answer:

The answer is 10c-9d-3

Step-by-step explanation:

9c - 8d + 2c - 6 - d + 3

= 11c - 9d - 3

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Solve this please <br><br> 2+x=x+2

Travka [436]

Answer

2+x=x+2

2+1x =1x +2

3= 3

3/6= 2

6 0

3 years ago

Rite the first ten terms of a sequence whose first term is -10 and whose common difference is -2.

Lelechka [254]

-10, -10-2·1= -12, -10-2·2=-14, -10-2·3=-16, -10-2·4= -18, -10-2·5= -20,
-10-2·6= -22, -10-2·7 =-24, -10-2·8=-26, -10-2·9=-28

a=-10
d=-2
xn=a+d(n-1)

the first ten terms are
-10, -12, -14, -16, -18, -20, -22, -24, -26, -28

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3 years ago

What is the perimeter of a parallelogram, if its area is 24 cm^2 and and the distances between the point of intersection of the

Stells [14]

Answer is 20 cm i guess

4 0

3 years ago

HELP I NEED HELP ASAP

tatiyna

Answer:

D) 8x²-172x+120

Step-by-step explanation:

Length=2(-2x+20)+6

Width=-2x+20

(-4x+40+6)(-2x+20)

(-4x+46)(-2x+20)

8x²-80x-92x+920

8x²-172x+920

5 0

3 years ago

Write as a product of two polynomials.<br><br> 2(3-b)+5(b-3)^2

viktelen [127]

Answer:

$5b^{2}-32b+51$

Step-by-step explanation:

$2(3-b)+5(b-3)^{2}$

$=6-2b+5b^{2}-30b+45$

$=5b^{2}-32b+51$

4 0

2 years ago