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3 years ago

40 POINTS

Mathematics

1 answer:

Hatshy [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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2x 2 + 10-12<br> X +6<br> Simplify

jenyasd209 [6]

Answer:

-72 X + 14

Step-by-step explanation:

6 0

2 years ago

A projectile is launched into the air. The function h(t) = –16t2 + 32t + 128 gives the height, h, in feet, of the projectile t s

Zinaida [17]

Answer:

t = 4 seconds

Step-by-step explanation:

The height of the projectile after it is launched is given by the function :

$h(t)=-16t^2+32t+128$

t is time in seconds

We need to find after how many seconds will the projectile land back on the ground. When it land, h(t)=0

So,

$-16t^2+32t+128=0$

The above is a quadratic equation. It can be solved by the formula as follows :

$t=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = -16, b = 32 and c = 128

$t=\dfrac{-32\pm \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=\dfrac{-32+ \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}, \dfrac{-32\- \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=-2\ s\ \text{and}\ 4\ s$

Neglecting negative value, the projectile will land after 4 seconds.

4 0

3 years ago

Help its for a gradeee

Fudgin [204]

Answer:

Step-by-step explanation:

Both of them have the same variable and are both raised to the 5th power (Like the example in the last sentence of the text)

5 0

2 years ago

Algebra 1 Volume 1 page 382

RoseWind [281]

Answer: I'm afraid I can't answer that.

Step-by-step explanation: I need details and if it's a workbook or something then I probably don't have it

6 0

3 years ago

CAN SOMEONE HELP ME ANSWER THIS

Snowcat [4.5K]

The ratio figure b to figure a 1/3. Just times 6 by 3 and the you'll find that the volume of figure a is 18.

7 0

3 years ago