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3 years ago

Y = 4x + 3 in slope line parallel

Mathematics

1 answer:

Gala2k [10]3 years ago

6 0

Answer:

y=4x would be one

Step-by-step explanation:

I hope its right...

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PLEASE I NEED HELP ASAP

Annette [7]

1. 15x
2. 21
3. 4
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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

Solve 3x2 + 4x = 2<br>I need it solved with the quadratic formula

lisabon 2012 [21]

3x2+4x=2
6+4x=2
-6 -6
4x=-4
4 4
x=-1

8 0

3 years ago

PLEASE HELP ME BRO

Sav [38]

The answer is D. 27
54 divided by 2 is 27

7 0

2 years ago

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Can someone pleaseeee help and if you’re correct I’ll give u brainlist

Dmitry [639]

Answer:

i believe its b but its kind of hard to read

Step-by-step explanation:

8 0

2 years ago

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