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2 years ago

5

What is the simplified expression for-3cd-d(2c-4)-4d

1 answer:

Elden [556K]2 years ago

8 0

Answer: 0 -5cd.

Hope this helps :)

- Martiinez :)

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Math question.......

MAXImum [283]

Answer:

x=54

Step-by-step explanation:

easy

180 is a triangle

so

exterior+interior=180

so 180-123

57

now add all up to 180

180=57+x+69

x=54

8 0

2 years ago

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Create a quadratic trinomial with zeros equal to 4 and 5

Ilya [14]

Answer:

x^2 - 9x + 20

Step-by-step explanation:

(x - 4)(x - 5) (have to do the opposite for it to be positive)

FOIL method: X x X = x^2

-5 x X = -5x

-4 x X = -4x

x^2 - 5x - 4x + 20

-5 - 4 = -9 so...

x^2 - 9x +20 is the answer

5 0

3 years ago

In a right triangle, if a = 8 and c = 17, what is the correct setup to find the value of b?

salantis [7]

Answer:

b =15

Step-by-step explanation:

We can use Pythagoras theorem to find b:

$a^{2}+b^{2} = c^{2}$

$8^{2} + b^{2} = 17^{2}$

64 + $b^{2}$ = 289

64 + 225 = 289

64 + $15^{2}$ = 289

b = 15

hope this helps :) and sorry if not right

7 0

2 years ago

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X=2y-1 <br> 3x+4y=11<br> Need help solving

tigry1 [53]

Answer: (-1/5, 2/5)

Step-by-step explanation:

See the photo for explanation and work.

6 0

3 years ago

What is the area of this rectangle in square inches??

rodikova [14]

The area is A. 84 square inches

7 0

3 years ago

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