3 years ago

Please help me with these two problems!!! There due in a hour

Mathematics

1 answer:

atroni [7]3 years ago

3 0

I don’t know the answer sorry

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-4x + 2(5x - 6) = 6(x - 2)

Ugo [173]

Answer:

Sorry but this equation gives me 6x-12=6x-12

Step-by-step explanation:

Hope u don't mind me asking but have u tried it out yet and what did you get???

Is that a negative b4 4x??

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2 years ago

Cost of 5 m ribbon = 7.5 and cost of 1 m ribbon is

Umnica [9.8K]

Answer:

1.50

Step-by-step explanation:

7.5 is 1.5 x 5 so, 1 x 1.5 = 1.5

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2 years ago

A piece of stained glass in the shape of a right triangle has sides measuring 8 centimeters 15 centimeters and 16 centimeters wh

Wittaler [7]

The answer would be...

a= 59.43 sq. cm

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2 years ago

Please answer the following question

Arte-miy333 [17]

Yeah there all right but I have a little hinch for the last and first one

6 0

3 years ago

The height, h, in feet of a ball above the ground is given by h = −16t2 + 64t + 80, where t is the time in seconds. How long doe

Gwar [14]

Answer:

t = 5 seconds

Step-by-step explanation:

It is given that, the height h, in feet of a ball above the ground is given by :

$h=-16t^2+64t+80$

Where t is in seconds

We need to find how long does it take the ball to hit the ground? When it hits the ground, its height will be equal to 0. So,

$-16t^2+64t+80=0\\\\t=\dfrac{-64\pm \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=\dfrac{-64+ \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16},\dfrac{-64-\sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=-1\ s\ \text{and}\ t=5\ s$

Neglecting negative time.

It means ball will take 5 seconds to hit the ground.

3 0

2 years ago